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f6b384631e
72640 Commits
Author | SHA1 | Message | Date | |
---|---|---|---|---|
Linus Torvalds
|
f2afccfefe |
Including fixes from wireless and can.
Current release - regressions: - wifi: mac80211: - fix potential null pointer dereference - fix receiving mesh packets in forwarding=0 networks - fix mesh forwarding Current release - new code bugs: - virtio/vsock: fix leaks due to missing skb owner Previous releases - regressions: - raw: fix NULL deref in raw_get_next(). - sctp: check send stream number after wait_for_sndbuf - qrtr: - fix a refcount bug in qrtr_recvmsg() - do not do DEL_SERVER broadcast after DEL_CLIENT - wifi: brcmfmac: fix SDIO suspend/resume regression - wifi: mt76: fix use-after-free in fw features query. - can: fix race between isotp_sendsmg() and isotp_release() - eth: mtk_eth_soc: fix remaining throughput regression -eth: ice: reset FDIR counter in FDIR init stage Previous releases - always broken: - core: don't let netpoll invoke NAPI if in xmit context - icmp: guard against too small mtu - ipv6: fix an uninit variable access bug in __ip6_make_skb() - wifi: mac80211: fix the size calculation of ieee80211_ie_len_eht_cap() - can: fix poll() to not report false EPOLLOUT events - eth: gve: secure enough bytes in the first TX desc for all TCP pkts Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmQu4qgACgkQMUZtbf5S Irv7fA//elLM+YvGQDPgGs3KDZVnb5vnGTEPosc6mCWsYqR6EBxk6sf89yqk31xg IYbzOGXqkmi5ozhdjnNaFRGCtb+mBluV3oSPm8pM8d0NcuZta7MPPhduguEfnMS9 FcI98bxmzSXPIRzG/sCrc/tzedhepcAMlN80PtTzkxSUFlxA7z+vniatVymOZQtt MSWPa9gXl1Keon7DBzGvHlZtOK1ptDjti5cp81zw/bA20wArCEm3Zg99Xz2r9rYp eAF+KqKoclKieGUbJ7lXQIxWrHrFRznPoMbvW/ofU6JXQFi8KOh0zqJFIi9VnU0D EdtZxOgLXuLcjvKj8ijKFdIA5OFqMA65pWs2t2foBR9C0DVle8LztGpyZODf0huT agK9ZgM3av6jLzMe8CtJpz31nsWL1s4f3njM1PRucF/jTso72RWUdAx1fBurcnXm 45MK+uS0aAGch6cFT7mHqUAniGUakR+NPChA7ecn5iMetasinEWRLFxw0eQXEBcM kSPFVGXlT4u0a56xN2FoTPnXHb+k08035+cd+bRbTlUXKeMCVYg/k7DiJUr21IWL hHWVOzEnzRpDa5gsQ7apct3bcRZnHO/jlWGjkl/g+AGjwaMXae0zDFjajEazsmJ0 ZKOVsZgIcSCVAdnRLzP2IyKACuiFls6Qc46eARStKRwDjQsEoUU= =1AWK -----END PGP SIGNATURE----- Merge tag 'net-6.3-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from wireless and can. Current release - regressions: - wifi: mac80211: - fix potential null pointer dereference - fix receiving mesh packets in forwarding=0 networks - fix mesh forwarding Current release - new code bugs: - virtio/vsock: fix leaks due to missing skb owner Previous releases - regressions: - raw: fix NULL deref in raw_get_next(). - sctp: check send stream number after wait_for_sndbuf - qrtr: - fix a refcount bug in qrtr_recvmsg() - do not do DEL_SERVER broadcast after DEL_CLIENT - wifi: brcmfmac: fix SDIO suspend/resume regression - wifi: mt76: fix use-after-free in fw features query. - can: fix race between isotp_sendsmg() and isotp_release() - eth: mtk_eth_soc: fix remaining throughput regression - eth: ice: reset FDIR counter in FDIR init stage Previous releases - always broken: - core: don't let netpoll invoke NAPI if in xmit context - icmp: guard against too small mtu - ipv6: fix an uninit variable access bug in __ip6_make_skb() - wifi: mac80211: fix the size calculation of ieee80211_ie_len_eht_cap() - can: fix poll() to not report false EPOLLOUT events - eth: gve: secure enough bytes in the first TX desc for all TCP pkts" * tag 'net-6.3-rc6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (47 commits) net: stmmac: check fwnode for phy device before scanning for phy net: stmmac: Add queue reset into stmmac_xdp_open() function selftests: net: rps_default_mask.sh: delete veth link specifically net: fec: make use of MDIO C45 quirk can: isotp: fix race between isotp_sendsmg() and isotp_release() can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events can: isotp: isotp_recvmsg(): use sock_recv_cmsgs() to get SOCK_RXQ_OVFL infos can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access gve: Secure enough bytes in the first TX desc for all TCP pkts netlink: annotate lockless accesses to nlk->max_recvmsg_len ethtool: reset #lanes when lanes is omitted ping: Fix potentail NULL deref for /proc/net/icmp. raw: Fix NULL deref in raw_get_next(). ice: Reset FDIR counter in FDIR init stage ice: fix wrong fallback logic for FDIR net: stmmac: fix up RX flow hash indirection table when setting channels net: ethernet: ti: am65-cpsw: Fix mdio cleanup in probe wifi: mt76: ignore key disable commands wifi: ath11k: reduce the MHI timeout to 20s ipv6: Fix an uninit variable access bug in __ip6_make_skb() ... |
||
Oliver Hartkopp
|
051737439e |
can: isotp: fix race between isotp_sendsmg() and isotp_release()
As discussed with Dae R. Jeong and Hillf Danton here [1] the sendmsg()
function in isotp.c might get into a race condition when restoring the
former tx.state from the old_state.
Remove the old_state concept and implement proper locking for the
ISOTP_IDLE transitions in isotp_sendmsg(), inspired by a
simplification idea from Hillf Danton.
Introduce a new tx.state ISOTP_SHUTDOWN and use the same locking
mechanism from isotp_release() which resolves a potential race between
isotp_sendsmg() and isotp_release().
[1] https://lore.kernel.org/linux-can/ZB%2F93xJxq%2FBUqAgG@dragonet
v1: https://lore.kernel.org/all/20230331102114.15164-1-socketcan@hartkopp.net
v2: https://lore.kernel.org/all/20230331123600.3550-1-socketcan@hartkopp.net
take care of signal interrupts for wait_event_interruptible() in
isotp_release()
v3: https://lore.kernel.org/all/20230331130654.9886-1-socketcan@hartkopp.net
take care of signal interrupts for wait_event_interruptible() in
isotp_sendmsg() in the wait_tx_done case
v4: https://lore.kernel.org/all/20230331131935.21465-1-socketcan@hartkopp.net
take care of signal interrupts for wait_event_interruptible() in
isotp_sendmsg() in ALL cases
Cc: Dae R. Jeong <threeearcat@gmail.com>
Cc: Hillf Danton <hdanton@sina.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Fixes:
|
||
Michal Sojka
|
79e19fa79c |
can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events
When using select()/poll()/epoll() with a non-blocking ISOTP socket to
wait for when non-blocking write is possible, a false EPOLLOUT event
is sometimes returned. This can happen at least after sending a
message which must be split to multiple CAN frames.
The reason is that isotp_sendmsg() returns -EAGAIN when tx.state is
not equal to ISOTP_IDLE and this behavior is not reflected in
datagram_poll(), which is used in isotp_ops.
This is fixed by introducing ISOTP-specific poll function, which
suppresses the EPOLLOUT events in that case.
v2: https://lore.kernel.org/all/20230302092812.320643-1-michal.sojka@cvut.cz
v1: https://lore.kernel.org/all/20230224010659.48420-1-michal.sojka@cvut.cz
https://lore.kernel.org/all/b53a04a2-ba1f-3858-84c1-d3eb3301ae15@hartkopp.net
Signed-off-by: Michal Sojka <michal.sojka@cvut.cz>
Reported-by: Jakub Jira <jirajak2@fel.cvut.cz>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Fixes:
|
||
Oliver Hartkopp
|
0145462fc8 |
can: isotp: isotp_recvmsg(): use sock_recv_cmsgs() to get SOCK_RXQ_OVFL infos
isotp.c was still using sock_recv_timestamp() which does not provide
control messages to detect dropped PDUs in the receive path.
Fixes:
|
||
Oleksij Rempel
|
b45193cb4d |
can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access
In the j1939_tp_tx_dat_new() function, an out-of-bounds memory access
could occur during the memcpy() operation if the size of skb->cb is
larger than the size of struct j1939_sk_buff_cb. This is because the
memcpy() operation uses the size of skb->cb, leading to a read beyond
the struct j1939_sk_buff_cb.
Updated the memcpy() operation to use the size of struct
j1939_sk_buff_cb instead of the size of skb->cb. This ensures that the
memcpy() operation only reads the memory within the bounds of struct
j1939_sk_buff_cb, preventing out-of-bounds memory access.
Additionally, add a BUILD_BUG_ON() to check that the size of skb->cb
is greater than or equal to the size of struct j1939_sk_buff_cb. This
ensures that the skb->cb buffer is large enough to hold the
j1939_sk_buff_cb structure.
Fixes:
|
||
Eric Dumazet
|
a1865f2e7d |
netlink: annotate lockless accesses to nlk->max_recvmsg_len
syzbot reported a data-race in data-race in netlink_recvmsg() [1]
Indeed, netlink_recvmsg() can be run concurrently,
and netlink_dump() also needs protection.
[1]
BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg
read to 0xffff888141840b38 of 8 bytes by task 23057 on cpu 0:
netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988
sock_recvmsg_nosec net/socket.c:1017 [inline]
sock_recvmsg net/socket.c:1038 [inline]
__sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194
__do_sys_recvfrom net/socket.c:2212 [inline]
__se_sys_recvfrom net/socket.c:2208 [inline]
__x64_sys_recvfrom+0x78/0x90 net/socket.c:2208
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
write to 0xffff888141840b38 of 8 bytes by task 23037 on cpu 1:
netlink_recvmsg+0x114/0x730 net/netlink/af_netlink.c:1989
sock_recvmsg_nosec net/socket.c:1017 [inline]
sock_recvmsg net/socket.c:1038 [inline]
____sys_recvmsg+0x156/0x310 net/socket.c:2720
___sys_recvmsg net/socket.c:2762 [inline]
do_recvmmsg+0x2e5/0x710 net/socket.c:2856
__sys_recvmmsg net/socket.c:2935 [inline]
__do_sys_recvmmsg net/socket.c:2958 [inline]
__se_sys_recvmmsg net/socket.c:2951 [inline]
__x64_sys_recvmmsg+0xe2/0x160 net/socket.c:2951
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0x0000000000000000 -> 0x0000000000001000
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 23037 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00195-g5a57b48fdfcb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Fixes:
|
||
Andy Roulin
|
e847c7675e |
ethtool: reset #lanes when lanes is omitted
If the number of lanes was forced and then subsequently the user
omits this parameter, the ksettings->lanes is reset. The driver
should then reset the number of lanes to the device's default
for the specified speed.
However, although the ksettings->lanes is set to 0, the mod variable
is not set to true to indicate the driver and userspace should be
notified of the changes.
The consequence is that the same ethtool operation will produce
different results based on the initial state.
If the initial state is:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 2
Duplex: Full
Auto-negotiation: on
then executing 'ethtool -s swp1 speed 50000 autoneg off' will yield:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 2
Duplex: Full
Auto-negotiation: off
While if the initial state is:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 1
Duplex: Full
Auto-negotiation: off
executing the same 'ethtool -s swp1 speed 50000 autoneg off' results in:
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 1
Duplex: Full
Auto-negotiation: off
This patch fixes this behavior. Omitting lanes will always results in
the driver choosing the default lane width for the chosen speed. In this
scenario, regardless of the initial state, the end state will be, e.g.,
$ ethtool swp1 | grep -A 3 'Speed: '
Speed: 500000Mb/s
Lanes: 2
Duplex: Full
Auto-negotiation: off
Fixes:
|
||
Kuniyuki Iwashima
|
ab5fb73ffa |
ping: Fix potentail NULL deref for /proc/net/icmp.
After commit |
||
Kuniyuki Iwashima
|
0a78cf7264 |
raw: Fix NULL deref in raw_get_next().
Dae R. Jeong reported a NULL deref in raw_get_next() [0]. It seems that the repro was running these sequences in parallel so that one thread was iterating on a socket that was being freed in another netns. unshare(0x40060200) r0 = syz_open_procfs(0x0, &(0x7f0000002080)='net/raw\x00') socket$inet_icmp_raw(0x2, 0x3, 0x1) pread64(r0, &(0x7f0000000000)=""/10, 0xa, 0x10000000007f) After commit |
||
Linus Torvalds
|
ceeea1b782 |
nfsd-6.3 fixes:
- Fix a crash and a resource leak in NFSv4 COMPOUND processing - Fix issues with AUTH_SYS credential handling - Try again to address an NFS/NFSD/SUNRPC build dependency regression -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmQsLHMACgkQM2qzM29m f5eNAA/8DokMQLQ+gN8zhQNqmw92sUdW3m41o0/DfETVXyE60sX8uOE7PktSGwfz fWMMiQpvmnmw/lbO84XQ9i8E0hjh8cT26l1CJum4VgSFiBJJvIqNxb0Yro43R4Jc 1wU2AOpC9qzCokdHhHKszDXuOgsz3v5OMJSQz3mG50dlq8/+6KKrCnK6jakyrvxr vKcVMsoENhxh2MnJfbsIQ70UM/rF6dmZWzGuBJH51Fkt+0FD9cnxXZKCkv1+D8JN 5Hr+8rv4I/VqBGDzv9QHoEowZr70e8UUi2UME/jwSArhdxwsfPEqV/qWwHq9Q133 RW40Gco7/E3JUjpAVTRXVGSB+LwU1EvhWQ9qSpSx5D2CPAHJ9hsOw4I54+Q0vD+j 2druOpqIITZOvI3K54ZJXa2LK6SpZ8NnncP5YkLWOwR0Wqohy1U8Sm5uOiMs+IJa neTxL7f+u3MDQgaDCTuBkI4oKzSDF/ZiMTWh52iPyy9x03SRYXbW6UgqDiySIg0P jvvaDFCvKvvL2qEmksMoQbWxSjVj8PqL+qJIxQNIZwHbows6paL+l0rdSPXc+l2O 97GBlqNPfHt+AjfJvGDscaIcLA+gu+ErzwxG6BLKvB9QcX9/F3A62Nh3txpe5Q1r M5NyQwK3vVQcTejMqw34sBqp3EeI5iIJ9CjD/2tN+dUpeHyQld8= =bk6S -----END PGP SIGNATURE----- Merge tag 'nfsd-6.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fixes from Chuck Lever: - Fix a crash and a resource leak in NFSv4 COMPOUND processing - Fix issues with AUTH_SYS credential handling - Try again to address an NFS/NFSD/SUNRPC build dependency regression * tag 'nfsd-6.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: NFSD: callback request does not use correct credential for AUTH_SYS NFS: Remove "select RPCSEC_GSS_KRB5 sunrpc: only free unix grouplist after RCU settles nfsd: call op_release, even when op_func returns an error NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL |
||
Jeff Layton
|
5085e41f9e |
sunrpc: only free unix grouplist after RCU settles
While the unix_gid object is rcu-freed, the group_info list that it
contains is not. Ensure that we only put the group list reference once
we are really freeing the unix_gid object.
Reported-by: Zhi Li <yieli@redhat.com>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2183056
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Fixes:
|
||
Ziyang Xuan
|
ea30388bae |
ipv6: Fix an uninit variable access bug in __ip6_make_skb()
Syzbot reported a bug as following:
=====================================================
BUG: KMSAN: uninit-value in arch_atomic64_inc arch/x86/include/asm/atomic64_64.h:88 [inline]
BUG: KMSAN: uninit-value in arch_atomic_long_inc include/linux/atomic/atomic-long.h:161 [inline]
BUG: KMSAN: uninit-value in atomic_long_inc include/linux/atomic/atomic-instrumented.h:1429 [inline]
BUG: KMSAN: uninit-value in __ip6_make_skb+0x2f37/0x30f0 net/ipv6/ip6_output.c:1956
arch_atomic64_inc arch/x86/include/asm/atomic64_64.h:88 [inline]
arch_atomic_long_inc include/linux/atomic/atomic-long.h:161 [inline]
atomic_long_inc include/linux/atomic/atomic-instrumented.h:1429 [inline]
__ip6_make_skb+0x2f37/0x30f0 net/ipv6/ip6_output.c:1956
ip6_finish_skb include/net/ipv6.h:1122 [inline]
ip6_push_pending_frames+0x10e/0x550 net/ipv6/ip6_output.c:1987
rawv6_push_pending_frames+0xb12/0xb90 net/ipv6/raw.c:579
rawv6_sendmsg+0x297e/0x2e60 net/ipv6/raw.c:922
inet_sendmsg+0x101/0x180 net/ipv4/af_inet.c:827
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0xa8e/0xe70 net/socket.c:2476
___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2530
__sys_sendmsg net/socket.c:2559 [inline]
__do_sys_sendmsg net/socket.c:2568 [inline]
__se_sys_sendmsg net/socket.c:2566 [inline]
__x64_sys_sendmsg+0x367/0x540 net/socket.c:2566
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Uninit was created at:
slab_post_alloc_hook mm/slab.h:766 [inline]
slab_alloc_node mm/slub.c:3452 [inline]
__kmem_cache_alloc_node+0x71f/0xce0 mm/slub.c:3491
__do_kmalloc_node mm/slab_common.c:967 [inline]
__kmalloc_node_track_caller+0x114/0x3b0 mm/slab_common.c:988
kmalloc_reserve net/core/skbuff.c:492 [inline]
__alloc_skb+0x3af/0x8f0 net/core/skbuff.c:565
alloc_skb include/linux/skbuff.h:1270 [inline]
__ip6_append_data+0x51c1/0x6bb0 net/ipv6/ip6_output.c:1684
ip6_append_data+0x411/0x580 net/ipv6/ip6_output.c:1854
rawv6_sendmsg+0x2882/0x2e60 net/ipv6/raw.c:915
inet_sendmsg+0x101/0x180 net/ipv4/af_inet.c:827
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
____sys_sendmsg+0xa8e/0xe70 net/socket.c:2476
___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2530
__sys_sendmsg net/socket.c:2559 [inline]
__do_sys_sendmsg net/socket.c:2568 [inline]
__se_sys_sendmsg net/socket.c:2566 [inline]
__x64_sys_sendmsg+0x367/0x540 net/socket.c:2566
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
It is because icmp6hdr does not in skb linear region under the scenario
of SOCK_RAW socket. Access icmp6_hdr(skb)->icmp6_type directly will
trigger the uninit variable access bug.
Use a local variable icmp6_type to carry the correct value in different
scenarios.
Fixes:
|
||
Sricharan Ramabadhran
|
839349d139 |
net: qrtr: Do not do DEL_SERVER broadcast after DEL_CLIENT
On the remote side, when QRTR socket is removed, af_qrtr will call
qrtr_port_remove() which broadcasts the DEL_CLIENT packet to all neighbours
including local NS. NS upon receiving the DEL_CLIENT packet, will remove
the lookups associated with the node:port and broadcasts the DEL_SERVER
packet.
But on the host side, due to the arrival of the DEL_CLIENT packet, the NS
would've already deleted the server belonging to that port. So when the
remote's NS again broadcasts the DEL_SERVER for that port, it throws below
error message on the host:
"failed while handling packet from 2:-2"
So fix this error by not broadcasting the DEL_SERVER packet when the
DEL_CLIENT packet gets processed."
Fixes:
|
||
Xin Long
|
2584024b23 |
sctp: check send stream number after wait_for_sndbuf
This patch fixes a corner case where the asoc out stream count may change
after wait_for_sndbuf.
When the main thread in the client starts a connection, if its out stream
count is set to N while the in stream count in the server is set to N - 2,
another thread in the client keeps sending the msgs with stream number
N - 1, and waits for sndbuf before processing INIT_ACK.
However, after processing INIT_ACK, the out stream count in the client is
shrunk to N - 2, the same to the in stream count in the server. The crash
occurs when the thread waiting for sndbuf is awake and sends the msg in a
non-existing stream(N - 1), the call trace is as below:
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
Call Trace:
<TASK>
sctp_cmd_send_msg net/sctp/sm_sideeffect.c:1114 [inline]
sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1777 [inline]
sctp_side_effects net/sctp/sm_sideeffect.c:1199 [inline]
sctp_do_sm+0x197d/0x5310 net/sctp/sm_sideeffect.c:1170
sctp_primitive_SEND+0x9f/0xc0 net/sctp/primitive.c:163
sctp_sendmsg_to_asoc+0x10eb/0x1a30 net/sctp/socket.c:1868
sctp_sendmsg+0x8d4/0x1d90 net/sctp/socket.c:2026
inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:825
sock_sendmsg_nosec net/socket.c:722 [inline]
sock_sendmsg+0xde/0x190 net/socket.c:745
The fix is to add an unlikely check for the send stream number after the
thread wakes up from the wait_for_sndbuf.
Fixes:
|
||
Jakub Kicinski
|
275b471e3d |
net: don't let netpoll invoke NAPI if in xmit context
Commit |
||
Eric Dumazet
|
7d63b67125 |
icmp: guard against too small mtu
syzbot was able to trigger a panic [1] in icmp_glue_bits(), or
more exactly in skb_copy_and_csum_bits()
There is no repro yet, but I think the issue is that syzbot
manages to lower device mtu to a small value, fooling __icmp_send()
__icmp_send() must make sure there is enough room for the
packet to include at least the headers.
We might in the future refactor skb_copy_and_csum_bits() and its
callers to no longer crash when something bad happens.
[1]
kernel BUG at net/core/skbuff.c:3343 !
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 15766 Comm: syz-executor.0 Not tainted 6.3.0-rc4-syzkaller-00039-gffe78bbd5121 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:skb_copy_and_csum_bits+0x798/0x860 net/core/skbuff.c:3343
Code: f0 c1 c8 08 41 89 c6 e9 73 ff ff ff e8 61 48 d4 f9 e9 41 fd ff ff 48 8b 7c 24 48 e8 52 48 d4 f9 e9 c3 fc ff ff e8 c8 27 84 f9 <0f> 0b 48 89 44 24 28 e8 3c 48 d4 f9 48 8b 44 24 28 e9 9d fb ff ff
RSP: 0018:ffffc90000007620 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000000001e8 RCX: 0000000000000100
RDX: ffff8880276f6280 RSI: ffffffff87fdd138 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000000001e8 R11: 0000000000000001 R12: 000000000000003c
R13: 0000000000000000 R14: ffff888028244868 R15: 0000000000000b0e
FS: 00007fbc81f1c700(0000) GS:ffff88802ca00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2df43000 CR3: 00000000744db000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
icmp_glue_bits+0x7b/0x210 net/ipv4/icmp.c:353
__ip_append_data+0x1d1b/0x39f0 net/ipv4/ip_output.c:1161
ip_append_data net/ipv4/ip_output.c:1343 [inline]
ip_append_data+0x115/0x1a0 net/ipv4/ip_output.c:1322
icmp_push_reply+0xa8/0x440 net/ipv4/icmp.c:370
__icmp_send+0xb80/0x1430 net/ipv4/icmp.c:765
ipv4_send_dest_unreach net/ipv4/route.c:1239 [inline]
ipv4_link_failure+0x5a9/0x9e0 net/ipv4/route.c:1246
dst_link_failure include/net/dst.h:423 [inline]
arp_error_report+0xcb/0x1c0 net/ipv4/arp.c:296
neigh_invalidate+0x20d/0x560 net/core/neighbour.c:1079
neigh_timer_handler+0xc77/0xff0 net/core/neighbour.c:1166
call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
expire_timers+0x29b/0x4b0 kernel/time/timer.c:1751
__run_timers kernel/time/timer.c:2022 [inline]
Fixes:
|
||
Linus Torvalds
|
a0264d198a |
More NFS Client Bugfixes for Linux 6.3-rc
Bugfixes: * Fix shutdown of NFS TCP client sockets * Fix hangs when recovering open state after a server reboot -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEnZ5MQTpR7cLU7KEp18tUv7ClQOsFAmQnOw8ACgkQ18tUv7Cl QOvhTBAAhgxWVQkGh9Uh+b7vwBUnMenXCl2LhE9WodDgxCw4+7nQTSgW79iOKmA/ DGQd7iBT8nksKs3hPtg8aIQLuj42F0MlVexU7mJNOeA3cTSkbLaEwRJuOo3W8eKm A3/DMhUmYNue5ufhYmVV/9/j6pHRgib1JaBHgWFjqtr5vmehCxweW5TpfgJer5oF aX5YJkPShmMAb5C7yfZ/cjooQbLi1d21wwpkLHkANOIN2JK0QNesJb4ttYFxLxPN BNCSY3oe/E2pcbtwZeb0Eq17m4ToHOlwdtU9JvYyrLNdrJdNEgNGzD35dQfnZG+q FfP6Pla3Sr8T/06t+Y4mo3EyChLsM1Kq+K6iqPhVElzGA5eFtNT3TsS0Hxa4JfP4 sW3P4zx6Rl0oU1wPkwRonc66GjHmklHyfaXA6TeBqXpSKOXoZU5BP0tKdQ8TXZmu BeO37IzSfh+DZ/etl4xrVZDK1MYOPz/096RUXhMrkBRWobwSTrj5jmQtUlgGoLqv M1II1a4btRZ04gTl/o+eMnwR+ULp7F/Yd1hEJq1fkNhuIc8Fh+GzU/21xh2dWmsb 83jjKURyDglKSIvP6LaqB9i1ilJS5YqnQjRKhZAWxzhHrkS9GnZZ0FV0685efvUH aVgctskoVrltJ7jkvn3Z2WSGhkVo/k/qvnyqqqeR8EIRXTE/3J0= =S4il -----END PGP SIGNATURE----- Merge tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs Pull NFS client fixes from Anna Schumaker: - Fix shutdown of NFS TCP client sockets - Fix hangs when recovering open state after a server reboot * tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs: SUNRPC: fix shutdown of NFS TCP client socket NFSv4: Fix hangs when recovering open state after a server reboot |
||
Arseniy Krasnov
|
ffa5395a79 |
vsock/vmci: convert VMCI error code to -ENOMEM on send
This adds conversion of VMCI specific error code to general -ENOMEM. It
is needed, because af_vsock.c passes error value returned from transport
to the user, which does not expect to get VMCI_ERROR_* values.
Fixes:
|
||
Andrea Righi
|
154e07c164 |
l2tp: generate correct module alias strings
Commit |
||
Ziyang Xuan
|
44d8073200 |
net: qrtr: Fix a refcount bug in qrtr_recvmsg()
Syzbot reported a bug as following:
refcount_t: addition on 0; use-after-free.
...
RIP: 0010:refcount_warn_saturate+0x17c/0x1f0 lib/refcount.c:25
...
Call Trace:
<TASK>
__refcount_add include/linux/refcount.h:199 [inline]
__refcount_inc include/linux/refcount.h:250 [inline]
refcount_inc include/linux/refcount.h:267 [inline]
kref_get include/linux/kref.h:45 [inline]
qrtr_node_acquire net/qrtr/af_qrtr.c:202 [inline]
qrtr_node_lookup net/qrtr/af_qrtr.c:398 [inline]
qrtr_send_resume_tx net/qrtr/af_qrtr.c:1003 [inline]
qrtr_recvmsg+0x85f/0x990 net/qrtr/af_qrtr.c:1070
sock_recvmsg_nosec net/socket.c:1017 [inline]
sock_recvmsg+0xe2/0x160 net/socket.c:1038
qrtr_ns_worker+0x170/0x1700 net/qrtr/ns.c:688
process_one_work+0x991/0x15c0 kernel/workqueue.c:2390
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
It occurs in the concurrent scenario of qrtr_recvmsg() and
qrtr_endpoint_unregister() as following:
cpu0 cpu1
qrtr_recvmsg qrtr_endpoint_unregister
qrtr_send_resume_tx qrtr_node_release
qrtr_node_lookup mutex_lock(&qrtr_node_lock)
spin_lock_irqsave(&qrtr_nodes_lock, ) refcount_dec_and_test(&node->ref) [node->ref == 0]
radix_tree_lookup [node != NULL] __qrtr_node_release
qrtr_node_acquire spin_lock_irqsave(&qrtr_nodes_lock, )
kref_get(&node->ref) [WARNING] ...
mutex_unlock(&qrtr_node_lock)
Use qrtr_node_lock to protect qrtr_node_lookup() implementation, this
is actually improving the protection of node reference.
Fixes:
|
||
Bobby Eshleman
|
f9d2b1e146 |
virtio/vsock: fix leaks due to missing skb owner
This patch sets the skb owner in the recv and send path for virtio.
For the send path, this solves the leak caused when
virtio_transport_purge_skbs() finds skb->sk is always NULL and therefore
never matches it with the current socket. Setting the owner upon
allocation fixes this.
For the recv path, this ensures correctness of accounting and also
correct transfer of ownership in vsock_loopback (when skbs are sent from
one socket and received by another).
Fixes:
|
||
Jakub Kicinski
|
6b36d68cc9 |
Just a few fixes:
* fix size calculation for EHT element to put into SKBs * remove erroneous pre-RCU calls for drivers not using sta_state calls * fix mesh forwarding and non-forwarding RX * fix mesh flow dissection * fix a potential NULL dereference on A-MSDU RX w/o station * make two variable non-static that really shouldn't be static -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEpeA8sTs3M8SN2hR410qiO8sPaAAFAmQl8bAACgkQ10qiO8sP aAD+tQ/+JPJTty7+9kmL7KfrI0bZH8++FifbBCCmXBZ71m1TebJMHQpedtjq8jsc z1E9fzo0vqyvxMpwZ/kgbfx6yhy7gWFqydc2gy+2FmTclyqvpZNSQBCi497wU63z ITTZKb8LTJ4zANYINx4yeRZHcmFzPkTcX2JgugQDxLFGrLj9PMvC5iRytGFKDZe1 YhfNzoxLuD2qDUn7HKcKwxnfUauXm31rnTFl5oowBb7mQxAgXpwUsqQaLteqcd6U HPs++cUT/xWW4zoOv7DQkEWfKXzTEkIjGWCNOWPqbeRfGWqmVl29TDuOLSb9fT29 t0CbDhLx0oB/UlsAlAsubI/zTDyCSxzS7eESElVvzGuOGAiZDYQ6MTpknX7r9lDH Lpngr+fyhNYIGAmoFbv2+RzMG2frtNYAda/QUCLCF9biWoJIXss5pGSyHHpcqN6Z nlicMeVYCKVeDTpG9DSGhq1EnSsPlHpl9XioVzM6BYYjRp9nTmq/aJasHTvoBfku 930woF3m2TPmvCrmuzxKSxZVyrckilbrxcZzmwRv6D7TIvYGLhi1c+tHnf5ysJ4X FZXVDm+r4dWBLfMBxhUxol/kb891Ag1S+PXPZtQyMKUugLuaBau/2mVtey+ZcGFK zgdhloBLAk96QkoS1dTdNkfN6B3TFvOcskCRNIdCRRpoUiwcav8= =efo1 -----END PGP SIGNATURE----- Merge tag 'wireless-2023-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Johannes Berg says: ==================== Just a few fixes: * fix size calculation for EHT element to put into SKBs * remove erroneous pre-RCU calls for drivers not using sta_state calls * fix mesh forwarding and non-forwarding RX * fix mesh flow dissection * fix a potential NULL dereference on A-MSDU RX w/o station * make two variable non-static that really shouldn't be static * tag 'wireless-2023-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: mac80211: fix invalid drv_sta_pre_rcu_remove calls for non-uploaded sta wifi: mac80211: fix flow dissection for forwarded packets wifi: mac80211: fix mesh forwarding wifi: mac80211: fix receiving mesh packets in forwarding=0 networks wifi: mac80211: fix the size calculation of ieee80211_ie_len_eht_cap() wifi: mac80211: fix potential null pointer dereference wifi: mac80211: drop bogus static keywords in A-MSDU rx ==================== Link: https://lore.kernel.org/r/20230330203313.919164-1-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Linus Torvalds
|
b2bc47e9b2 |
Including fixes from CAN and WPAN.
Current release - regressions: - phy: micrel: correct KSZ9131RNX EEE capabilities and advertisement Current release - new code bugs: - eth: wangxun: fix vector length of interrupt cause - vsock/loopback: consistently protect the packet queue with sk_buff_head.lock - virtio/vsock: fix header length on skb merging - wpan: ca8210: fix unsigned mac_len comparison with zero Previous releases - regressions: - eth: stmmac: don't reject VLANs when IFF_PROMISC is set - eth: smsc911x: avoid PHY being resumed when interface is not up - eth: mtk_eth_soc: fix tx throughput regression with direct 1G links - eth: bnx2x: use the right build_skb() helper after core rework - wwan: iosm: fix 7560 modem crash on use on unsupported channel Previous releases - always broken: - eth: sfc: don't overwrite offload features at NIC reset - eth: r8169: fix RTL8168H and RTL8107E rx crc error - can: j1939: prevent deadlock by moving j1939_sk_errqueue() - virt: vmxnet3: use GRO callback when UPT is enabled - virt: xen: don't do grant copy across page boundary - phy: dp83869: fix default value for tx-/rx-internal-delay - dsa: ksz8: fix multiple issues with ksz8_fdb_dump - eth: mvpp2: fix classification/RSS of VLAN and fragmented packets - eth: mtk_eth_soc: fix flow block refcounting logic Misc: - constify fwnode pointers in SFP handling Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAmQl6Z8ACgkQMUZtbf5S Irsodw//SxeZ16kZHdSuLsUd1bWWPyANsNG4UzKsS912sD8yErzvy3OAiRvTWXxH A7t6QCFZeCHOHLXVuaHXqdyrWcC1eJdCaSnJiDffCwS2oeP9d4IBs3pyLJaeQSXJ 0bep4EcFpxPwCpzFCYNbShvKBLi8vRCX2ZjNii76eMAc0bZ/HvY0rCvULsJ3cwOo cDdsL+lbPSI6suMm5ekm8Hdt7NuSB5jxNFlj2ene4pV7DqHC/a8UErak4fOKbX4h QguePqawC22ZurzXeWvstgcNlJPoPLpcYyXGxSU8qirhbkn1WmkXR11TNEbYE4UD YvJlKIyYOxjN36/xBiJ8LpXV+BQBpfZEV/LSaWByhclVS4c2bY0KkSRfZKOBY82K ejBbMJiGaAyA86QUFkkWxC+zfHiFIywy2nOYCKBsDhW17krBOu3vaFS/jNVC7Ef4 ilk4tUXTYs3ojBUeROnuI1NcR2o0wNeCob/0U/bMMdn51khee70G/muHYTGr/NWA JAZIT/3bOWr5syarpnvtb/PtLlWcoClN022W4iExgFmzbMlQGyD46g+XhsvoXAYO wpo/js0/J+kVfuVsTSQT5MmsVjnzs1r9Y+wNJUM6dE35Z4iIXc1NJhmAZ7nJz0+P ryn8rdnIgCbqzX3DeJC0i9uv0alwLXA/xGCFRV3xflfV/nvxiR0= =/1Gi -----END PGP SIGNATURE----- Merge tag 'net-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from CAN and WPAN. Still quite a few bugs from this release. This pull is a bit smaller because major subtrees went into the previous one. Or maybe people took spring break off? Current release - regressions: - phy: micrel: correct KSZ9131RNX EEE capabilities and advertisement Current release - new code bugs: - eth: wangxun: fix vector length of interrupt cause - vsock/loopback: consistently protect the packet queue with sk_buff_head.lock - virtio/vsock: fix header length on skb merging - wpan: ca8210: fix unsigned mac_len comparison with zero Previous releases - regressions: - eth: stmmac: don't reject VLANs when IFF_PROMISC is set - eth: smsc911x: avoid PHY being resumed when interface is not up - eth: mtk_eth_soc: fix tx throughput regression with direct 1G links - eth: bnx2x: use the right build_skb() helper after core rework - wwan: iosm: fix 7560 modem crash on use on unsupported channel Previous releases - always broken: - eth: sfc: don't overwrite offload features at NIC reset - eth: r8169: fix RTL8168H and RTL8107E rx crc error - can: j1939: prevent deadlock by moving j1939_sk_errqueue() - virt: vmxnet3: use GRO callback when UPT is enabled - virt: xen: don't do grant copy across page boundary - phy: dp83869: fix default value for tx-/rx-internal-delay - dsa: ksz8: fix multiple issues with ksz8_fdb_dump - eth: mvpp2: fix classification/RSS of VLAN and fragmented packets - eth: mtk_eth_soc: fix flow block refcounting logic Misc: - constify fwnode pointers in SFP handling" * tag 'net-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits) net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow net: ethernet: mtk_eth_soc: fix L2 offloading with DSA untag offload net: ethernet: mtk_eth_soc: fix flow block refcounting logic net: mvneta: fix potential double-frees in mvneta_txq_sw_deinit() net: dsa: sync unicast and multicast addresses for VLAN filters too net: dsa: mv88e6xxx: Enable IGMP snooping on user ports only xen/netback: use same error messages for same errors test/vsock: new skbuff appending test virtio/vsock: WARN_ONCE() for invalid state of socket virtio/vsock: fix header length on skb merging bnxt_en: Add missing 200G link speed reporting bnxt_en: Fix typo in PCI id to device description string mapping bnxt_en: Fix reporting of test result in ethtool selftest i40e: fix registers dump after run ethtool adapter self test bnx2x: use the right build_skb() helper net: ipa: compute DMA pool size properly net: wwan: iosm: fixes 7560 modem crash net: ethernet: mtk_eth_soc: fix tx throughput regression with direct 1G links ice: fix invalid check for empty list in ice_sched_assoc_vsi_to_agg() ice: add profile conflict check for AVF FDIR ... |
||
Vladimir Oltean
|
64fdc5f341 |
net: dsa: sync unicast and multicast addresses for VLAN filters too
If certain conditions are met, DSA can install all necessary MAC addresses on the CPU ports as FDB entries and disable flooding towards the CPU (we call this RX filtering). There is one corner case where this does not work. ip link add br0 type bridge vlan_filtering 1 && ip link set br0 up ip link set swp0 master br0 && ip link set swp0 up ip link add link swp0 name swp0.100 type vlan id 100 ip link set swp0.100 up && ip addr add 192.168.100.1/24 dev swp0.100 Traffic through swp0.100 is broken, because the bridge turns on VLAN filtering in the swp0 port (causing RX packets to be classified to the FDB database corresponding to the VID from their 802.1Q header), and although the 8021q module does call dev_uc_add() towards the real device, that API is VLAN-unaware, so it only contains the MAC address, not the VID; and DSA's current implementation of ndo_set_rx_mode() is only for VID 0 (corresponding to FDB entries which are installed in an FDB database which is only hit when the port is VLAN-unaware). It's interesting to understand why the bridge does not turn on IFF_PROMISC for its swp0 bridge port, and it may appear at first glance that this is a regression caused by the logic in commit |
||
Felix Fietkau
|
12b220a617 |
wifi: mac80211: fix invalid drv_sta_pre_rcu_remove calls for non-uploaded sta
Avoid potential data corruption issues caused by uninitialized driver
private data structures.
Reported-by: Brian Coverstone <brian@mainsequence.net>
Fixes:
|
||
Felix Fietkau
|
899c2c1181 |
wifi: mac80211: fix flow dissection for forwarded packets
Adjust the network header to point at the correct payload offset
Fixes:
|
||
Felix Fietkau
|
8f0149a8ac |
wifi: mac80211: fix mesh forwarding
Linearize packets (needed for forwarding A-MSDU subframes).
Fixes:
|
||
Felix Fietkau
|
e26c0946a5 |
wifi: mac80211: fix receiving mesh packets in forwarding=0 networks
When forwarding is set to 0, frames are typically sent with ttl=1.
Move the ttl decrement check below the check for local receive in order to
fix packet drops.
Reported-by: Thomas Hühn <thomas.huehn@hs-nordhausen.de>
Reported-by: Nick Hainke <vincent@systemli.org>
Fixes:
|
||
Ryder Lee
|
dd01579e5e |
wifi: mac80211: fix the size calculation of ieee80211_ie_len_eht_cap()
Here should return the size of ieee80211_eht_cap_elem_fixed, so fix it.
Fixes:
|
||
Felix Fietkau
|
a16fc38315 |
wifi: mac80211: fix potential null pointer dereference
rx->sta->amsdu_mesh_control is being passed to ieee80211_amsdu_to_8023s
without checking rx->sta. Since it doesn't make sense to accept A-MSDU
packets without a sta, simply add a check earlier.
Fixes:
|
||
Felix Fietkau
|
4d78e032fe |
wifi: mac80211: drop bogus static keywords in A-MSDU rx
These were unintentional copy&paste mistakes.
Cc: stable@vger.kernel.org
Fixes:
|
||
Arseniy Krasnov
|
b8d2f61fdf |
virtio/vsock: WARN_ONCE() for invalid state of socket
This adds WARN_ONCE() and return from stream dequeue callback when socket's queue is empty, but 'rx_bytes' still non-zero. This allows the detection of potential bugs due to packet merging (see previous patch). Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Arseniy Krasnov
|
f7154d967b |
virtio/vsock: fix header length on skb merging
This fixes appending newly arrived skbuff to the last skbuff of the socket's queue. Problem fires when we are trying to append data to skbuff which was already processed in dequeue callback at least once. Dequeue callback calls function 'skb_pull()' which changes 'skb->len'. In current implementation 'skb->len' is used to update length in header of the last skbuff after new data was copied to it. This is bug, because value in header is used to calculate 'rx_bytes'/'fwd_cnt' and thus must be not be changed during skbuff's lifetime. Bug starts to fire since: commit |
||
Jakub Kicinski
|
a4d7108c2e |
Merge tag 'ieee802154-for-net-2023-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan
Stefan Schmidt says: ==================== ieee802154 for net 2023-03-29 Two small fixes this time. Dongliang Mu removed an unnecessary null pointer check. Harshit Mogalapalli fixed an int comparison unsigned against signed from a recent other fix in the ca8210 driver. * tag 'ieee802154-for-net-2023-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan: net: ieee802154: remove an unnecessary null pointer check ca8210: Fix unsigned mac_len comparison with zero in ca8210_skb_tx() ==================== Link: https://lore.kernel.org/r/20230329064541.2147400-1-stefan@datenfreihafen.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Ivan Orlov
|
2b4c99f7d9 |
can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write
Syzkaller reported the following issue:
=====================================================
BUG: KMSAN: uninit-value in aio_rw_done fs/aio.c:1520 [inline]
BUG: KMSAN: uninit-value in aio_write+0x899/0x950 fs/aio.c:1600
aio_rw_done fs/aio.c:1520 [inline]
aio_write+0x899/0x950 fs/aio.c:1600
io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019
__do_sys_io_submit fs/aio.c:2078 [inline]
__se_sys_io_submit+0x293/0x770 fs/aio.c:2048
__x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Uninit was created at:
slab_post_alloc_hook mm/slab.h:766 [inline]
slab_alloc_node mm/slub.c:3452 [inline]
__kmem_cache_alloc_node+0x71f/0xce0 mm/slub.c:3491
__do_kmalloc_node mm/slab_common.c:967 [inline]
__kmalloc+0x11d/0x3b0 mm/slab_common.c:981
kmalloc_array include/linux/slab.h:636 [inline]
bcm_tx_setup+0x80e/0x29d0 net/can/bcm.c:930
bcm_sendmsg+0x3a2/0xce0 net/can/bcm.c:1351
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg net/socket.c:734 [inline]
sock_write_iter+0x495/0x5e0 net/socket.c:1108
call_write_iter include/linux/fs.h:2189 [inline]
aio_write+0x63a/0x950 fs/aio.c:1600
io_submit_one+0x1d1c/0x3bf0 fs/aio.c:2019
__do_sys_io_submit fs/aio.c:2078 [inline]
__se_sys_io_submit+0x293/0x770 fs/aio.c:2048
__x64_sys_io_submit+0x92/0xd0 fs/aio.c:2048
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
CPU: 1 PID: 5034 Comm: syz-executor350 Not tainted 6.2.0-rc6-syzkaller-80422-geda666ff2276 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
=====================================================
We can follow the call chain and find that 'bcm_tx_setup' function
calls 'memcpy_from_msg' to copy some content to the newly allocated
frame of 'op->frames'. After that the 'len' field of copied structure
being compared with some constant value (64 or 8). However, if
'memcpy_from_msg' returns an error, we will compare some uninitialized
memory. This triggers 'uninit-value' issue.
This patch will add 'memcpy_from_msg' possible errors processing to
avoid uninit-value issue.
Tested via syzkaller
Reported-by: syzbot+c9bfd85eca611ebf5db1@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=47f897f8ad958bbde5790ebf389b5e7e0a345089
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Fixes:
|
||
Oleksij Rempel
|
d1366b283d |
can: j1939: prevent deadlock by moving j1939_sk_errqueue()
This commit addresses a deadlock situation that can occur in certain
scenarios, such as when running data TP/ETP transfer and subscribing to
the error queue while receiving a net down event. The deadlock involves
locks in the following order:
3
j1939_session_list_lock -> active_session_list_lock
j1939_session_activate
...
j1939_sk_queue_activate_next -> sk_session_queue_lock
...
j1939_xtp_rx_eoma_one
2
j1939_sk_queue_drop_all -> sk_session_queue_lock
...
j1939_sk_netdev_event_netdown -> j1939_socks_lock
j1939_netdev_notify
1
j1939_sk_errqueue -> j1939_socks_lock
__j1939_session_cancel -> active_session_list_lock
j1939_tp_rxtimer
CPU0 CPU1
---- ----
lock(&priv->active_session_list_lock);
lock(&jsk->sk_session_queue_lock);
lock(&priv->active_session_list_lock);
lock(&priv->j1939_socks_lock);
The solution implemented in this commit is to move the
j1939_sk_errqueue() call out of the active_session_list_lock context,
thus preventing the deadlock situation.
Reported-by: syzbot+ee1cd780f69483a8616b@syzkaller.appspotmail.com
Fixes:
|
||
Stefano Garzarella
|
b465518dc2 |
vsock/loopback: use only sk_buff_head.lock to protect the packet queue
pkt_list_lock was used before commit |
||
Linus Torvalds
|
da8e7da11e |
nfsd-6.3 fixes:
- Fix a crash when using NFS with krb5p -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEKLLlsBKG3yQ88j7+M2qzM29mf5cFAmQfSj8ACgkQM2qzM29m f5dEyxAAwmDXHND31Dv9Jt6r9KAcZ2Px/qrddf73Q93NiqpCfNqsYpZYFqPPRkpK 0X4mGGnuBkyjOpWhf92j+UDlzDfrLuLdio+cSNEqB+kngm96CA8+pe06wtXBfbvS rqrUyKY5YLcYqsdPPoKNSHXEZGJFMBFtYY54MOH1qZjYG+hTKdnV/5TWdUOjZ8F5 GVnNqcUUmTcci3epLueGGpK4Qfab6RVtlk0XkJTQoDeiMaaw1q6QlOG/lGdpE6/Q oroXKd/AXDvNBA6cHxbuJMUxjugFkDid9+gSpxwTWFXICJhIbLqf7PI1Q5u0/HbW JxLMc66iYDIvXIn10nWAuAIsoLfpiZQXmSljLbLmhvwD4toaGhu7IhdqTJycz6FI vyVpYCPyx5hMQUEm0cyEanbzqDll6+phyOZteYvGE+n3nKUPVeCxjiCIFHRZ4gMv gScikil7D5HAzwHEf/5kqqUmEauD1BD9SAQECL8aL/E2yvYdjwSjYTs/CGYVv6b5 C+2vm1KGFTOq7GmQATL8zsMQ/+X68nS7ATiYBz+3KZ0zg2jmvRS1uzku6hvGwXLb TCzmDJ0Wq8qUL4DL8mp+XyLW8R2ltfdcV7YPe9ACF6mx0RVtLtSbDhQNXPqV8mSC 1PKpmg3ZxAjyHLansekh43U8XMr2FS9d6s1fiNZFqf/ORAnpRek= =FHAt -----END PGP SIGNATURE----- Merge tag 'nfsd-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux Pull nfsd fix from Chuck Lever: - Fix a crash when using NFS with krb5p * tag 'nfsd-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: SUNRPC: Fix a crash in gss_krb5_checksum() |
||
Jakub Kicinski
|
1b4ae19e43 |
bpf-for-netdev
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCZBzSGQAKCRDbK58LschI g+dhAP95enbrlwaQ+9aoqrU+GqCq+uo4SkaqnUtq6GSvRNiVBQD8C6iZxrAjyXnm 1wRr3JN/HszPBzgjl3HvDc9y69I/PAI= =8JwR -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf Daniel Borkmann says: ==================== pull-request: bpf 2023-03-23 We've added 8 non-merge commits during the last 13 day(s) which contain a total of 21 files changed, 238 insertions(+), 161 deletions(-). The main changes are: 1) Fix verification issues in some BPF programs due to their stack usage patterns, from Eduard Zingerman. 2) Fix to add missing overflow checks in xdp_umem_reg and return an error in such case, from Kal Conley. 3) Fix and undo poisoning of strlcpy in libbpf given it broke builds for libcs which provided the former like uClibc-ng, from Jesus Sanchez-Palencia. 4) Fix insufficient bpf_jit_limit default to avoid users running into hard to debug seccomp BPF errors, from Daniel Borkmann. 5) Fix driver return code when they don't support a bpf_xdp_metadata kfunc to make it unambiguous from other errors, from Jesper Dangaard Brouer. 6) Two BPF selftest fixes to address compilation errors from recent changes in kernel structures, from Alexei Starovoitov. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: xdp: bpf_xdp_metadata use EOPNOTSUPP for no driver support bpf: Adjust insufficient default bpf_jit_limit xsk: Add missing overflow check in xdp_umem_reg selftests/bpf: Fix progs/test_deny_namespace.c issues. selftests/bpf: Fix progs/find_vma_fail1.c build error. libbpf: Revert poisoning of strlcpy selftests/bpf: Tests for uninitialized stack reads bpf: Allow reads from uninit stack ==================== Link: https://lore.kernel.org/r/20230323225221.6082-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Jakub Kicinski
|
2e63a2dfe7 |
bluetooth pull request for net:
- Fix MGMT add advmon with RSSI command - L2CAP: Fix responding with wrong PDU type - Fix race condition in hci_cmd_sync_clear - ISO: Fix timestamped HCI ISO data packet parsing - HCI: Fix global-out-of-bounds - hci_sync: Resume adv with no RPA when active scan -----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEE7E6oRXp8w05ovYr/9JCA4xAyCykFAmQcskUZHGx1aXoudm9u LmRlbnR6QGludGVsLmNvbQAKCRD0kIDjEDILKUVID/9wBdLUiz+5ZMeyzsrX2Izi Bph2b6z/DSEAk+DTaG4PPOGNc5DPdRt1wdPo4v24HexICi5GB7fgKeJN3Uhge9iO 2bp1LgB/SwBdRPCDamEhx9WNOyMO11qIsrQxfqzl+3YyLTgleE0kErh8Dcq9Z9r7 IMdajwV64I4NzxAva7IAFV/LC9WA7BxX3hnFxx3YYjumJgK3QMZ91x5xc7veNt3v ZD0YQLU2uYE/yQ8r+WaUatfeAAiBOmpb6BcTYbowhrqkER5KFJTeKGU6gkphnHbS 12EJ6hW84tBdUELGp9JpuElPQoOHC9MYBWd0FvyRe7HGIZARtxUnm3B0FcmlMdgG OsI9VQ8SM3eLg9G+Kz/wMOW1enJf5bMgY7LKzE5EcpsaVr+pkng+ROThHv7YFqXQ uU99uksQrDVpnjhWBmHgUOmoIJYZPsRQyAz0GTA2Zvlr8nAohqzmWKvXRdb+Gmtt 7Ss61MCNAFqDYOxAq8qo/QgR2toa8W4ULTqHlJuLkHeszZlyKL+5qDipG9WvirWd C8pwHpsR3KTJnQOyVCLYLq46rY14sxNp4RbtlydgQ3Xa4kvFbi/ZycWI5DMIRPsc sg8vyzQN7UKL2Sd59JS7Vi6YK4aPu+Br1BdHIKwp+0pdqRxVfsz2UM8D8E9OZ4QT jN2Iqxztt0cFG9pyq2z+cw== =mBpY -----END PGP SIGNATURE----- Merge tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth Luiz Augusto von Dentz says: ==================== bluetooth pull request for net: - Fix MGMT add advmon with RSSI command - L2CAP: Fix responding with wrong PDU type - Fix race condition in hci_cmd_sync_clear - ISO: Fix timestamped HCI ISO data packet parsing - HCI: Fix global-out-of-bounds - hci_sync: Resume adv with no RPA when active scan * tag 'for-net-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth: Bluetooth: HCI: Fix global-out-of-bounds Bluetooth: mgmt: Fix MGMT add advmon with RSSI command Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work Bluetooth: L2CAP: Fix responding with wrong PDU type Bluetooth: btqcomsmd: Fix command timeout after setting BD address Bluetooth: btinel: Check ACPI handle for NULL before accessing Bluetooth: Remove "Power-on" check from Mesh feature Bluetooth: Fix race condition in hci_cmd_sync_clear Bluetooth: btintel: Iterate only bluetooth device ACPI entries Bluetooth: ISO: fix timestamped HCI ISO data packet parsing Bluetooth: btusb: Remove detection of ISO packets over bulk Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet Bluetooth: hci_sync: Resume adv with no RPA when active scan ==================== Link: https://lore.kernel.org/r/20230323202335.3380841-1-luiz.dentz@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Jakub Kicinski
|
4f44d32605 |
wireless fixes for v6.3
Third set of fixes for v6.3. mt76 has two kernel crash fixes and adding back 160 MHz channel support for mt7915. mac80211 has fixes for a race in transmit path and two mesh related fixes. iwlwifi also has fixes for races. -----BEGIN PGP SIGNATURE----- iQFFBAABCgAvFiEEiBjanGPFTz4PRfLobhckVSbrbZsFAmQcMXARHGt2YWxvQGtl cm5lbC5vcmcACgkQbhckVSbrbZsSmAf/Z4AE+QdgYh+82qvKyFRQ49xdMthWIjqY C+eHAxPJaJAPDfU8XaN6ZzjXUUBaulSo4ikOTB0FAOjn2ZmsIW7ONNdUUtgsWoCg wqYfzaPOnpBEGbk1+2F2XCeVROX3zzD2rAiDeP0r+hp++fQKjX3LPTBEGESQssX+ 0PAXlIZq4l6QzNtClu96rWb/FsY6raQJ1zbczPCoQ9r+NRxbsA0EU/zUljJsizoH 7k1CxXR8McPyX6h66lYdEPj5M1wWAeyUdFN5lxKnj3x98dPPoTlrUzRVUTTYXFmI b6L92LwoEQrmvrnb/g/1KRJhLpb5gaGGNeIHGzEOZfh6YpoWtoHOjw== =XWH+ -----END PGP SIGNATURE----- Merge tag 'wireless-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless Kalle Valo says: ==================== wireless fixes for v6.3 Third set of fixes for v6.3. mt76 has two kernel crash fixes and adding back 160 MHz channel support for mt7915. mac80211 has fixes for a race in transmit path and two mesh related fixes. iwlwifi also has fixes for races. * tag 'wireless-2023-03-23' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: wifi: mac80211: fix mesh path discovery based on unicast packets wifi: mac80211: fix qos on mesh interfaces wifi: iwlwifi: mvm: protect TXQ list manipulation wifi: iwlwifi: mvm: fix mvmtxq->stopped handling wifi: mac80211: Serialize ieee80211_handle_wake_tx_queue() wifi: mwifiex: mark OF related data as maybe unused wifi: mt76: connac: do not check WED status for non-mmio devices wifi: mt76: mt7915: add back 160MHz channel width support for MT7915 wifi: mt76: do not run mt76_unregister_device() on unregistered hw ==================== Link: https://lore.kernel.org/r/20230323110332.C4FE4C433D2@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Sungwoo Kim
|
bce5640520 |
Bluetooth: HCI: Fix global-out-of-bounds
To loop a variable-length array, hci_init_stage_sync(stage) considers
that stage[i] is valid as long as stage[i-1].func is valid.
Thus, the last element of stage[].func should be intentionally invalid
as hci_init0[], le_init2[], and others did.
However, amp_init1[] and amp_init2[] have no invalid element, letting
hci_init_stage_sync() keep accessing amp_init1[] over its valid range.
This patch fixes this by adding {} in the last of amp_init1[] and
amp_init2[].
==================================================================
BUG: KASAN: global-out-of-bounds in hci_dev_open_sync (
/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
/v6.2-bzimage/net/bluetooth/hci_sync.c:3343
/v6.2-bzimage/net/bluetooth/hci_sync.c:4418
/v6.2-bzimage/net/bluetooth/hci_sync.c:4609
/v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
Read of size 8 at addr ffffffffaed1ab70 by task kworker/u5:0/1032
CPU: 0 PID: 1032 Comm: kworker/u5:0 Not tainted 6.2.0 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04
Workqueue: hci1 hci_power_on
Call Trace:
<TASK>
dump_stack_lvl (/v6.2-bzimage/lib/dump_stack.c:107 (discriminator 1))
print_report (/v6.2-bzimage/mm/kasan/report.c:307
/v6.2-bzimage/mm/kasan/report.c:417)
? hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
/v6.2-bzimage/net/bluetooth/hci_sync.c:3343
/v6.2-bzimage/net/bluetooth/hci_sync.c:4418
/v6.2-bzimage/net/bluetooth/hci_sync.c:4609
/v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
kasan_report (/v6.2-bzimage/mm/kasan/report.c:184
/v6.2-bzimage/mm/kasan/report.c:519)
? hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
/v6.2-bzimage/net/bluetooth/hci_sync.c:3343
/v6.2-bzimage/net/bluetooth/hci_sync.c:4418
/v6.2-bzimage/net/bluetooth/hci_sync.c:4609
/v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:3154
/v6.2-bzimage/net/bluetooth/hci_sync.c:3343
/v6.2-bzimage/net/bluetooth/hci_sync.c:4418
/v6.2-bzimage/net/bluetooth/hci_sync.c:4609
/v6.2-bzimage/net/bluetooth/hci_sync.c:4689)
? __pfx_hci_dev_open_sync (/v6.2-bzimage/net/bluetooth/hci_sync.c:4635)
? mutex_lock (/v6.2-bzimage/./arch/x86/include/asm/atomic64_64.h:190
/v6.2-bzimage/./include/linux/atomic/atomic-long.h:443
/v6.2-bzimage/./include/linux/atomic/atomic-instrumented.h:1781
/v6.2-bzimage/kernel/locking/mutex.c:171
/v6.2-bzimage/kernel/locking/mutex.c:285)
? __pfx_mutex_lock (/v6.2-bzimage/kernel/locking/mutex.c:282)
hci_power_on (/v6.2-bzimage/net/bluetooth/hci_core.c:485
/v6.2-bzimage/net/bluetooth/hci_core.c:984)
? __pfx_hci_power_on (/v6.2-bzimage/net/bluetooth/hci_core.c:969)
? read_word_at_a_time (/v6.2-bzimage/./include/asm-generic/rwonce.h:85)
? strscpy (/v6.2-bzimage/./arch/x86/include/asm/word-at-a-time.h:62
/v6.2-bzimage/lib/string.c:161)
process_one_work (/v6.2-bzimage/kernel/workqueue.c:2294)
worker_thread (/v6.2-bzimage/./include/linux/list.h:292
/v6.2-bzimage/kernel/workqueue.c:2437)
? __pfx_worker_thread (/v6.2-bzimage/kernel/workqueue.c:2379)
kthread (/v6.2-bzimage/kernel/kthread.c:376)
? __pfx_kthread (/v6.2-bzimage/kernel/kthread.c:331)
ret_from_fork (/v6.2-bzimage/arch/x86/entry/entry_64.S:314)
</TASK>
The buggy address belongs to the variable:
amp_init1+0x30/0x60
The buggy address belongs to the physical page:
page:000000003a157ec6 refcount:1 mapcount:0 mapping:0000000000000000 ia
flags: 0x200000000001000(reserved|node=0|zone=2)
raw: 0200000000001000 ffffea0005054688 ffffea0005054688 000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffffffffaed1aa00: f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9 00 00 00 00
ffffffffaed1aa80: 00 00 00 00 f9 f9 f9 f9 00 00 00 00 00 00 00 00
>ffffffffaed1ab00: 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00 00 00 f9 f9
^
ffffffffaed1ab80: f9 f9 f9 f9 00 00 00 00 f9 f9 f9 f9 00 00 00 f9
ffffffffaed1ac00: f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9 00 00 02 f9
This bug is found by FuzzBT, a modified version of Syzkaller.
Other contributors for this bug are Ruoyu Wu and Peng Hui.
Fixes:
|
||
Howard Chung
|
1a0291f815 |
Bluetooth: mgmt: Fix MGMT add advmon with RSSI command
The MGMT command: MGMT_OP_ADD_ADV_PATTERNS_MONITOR_RSSI uses variable
length argument. This causes host not able to register advmon with rssi.
This patch has been locally tested by adding monitor with rssi via
btmgmt on a kernel 6.1 machine.
Reviewed-by: Archie Pusaka <apusaka@chromium.org>
Fixes:
|
||
Luiz Augusto von Dentz
|
9aa9d9473f |
Bluetooth: L2CAP: Fix responding with wrong PDU type
L2CAP_ECRED_CONN_REQ shall be responded with L2CAP_ECRED_CONN_RSP not
L2CAP_LE_CONN_RSP:
L2CAP LE EATT Server - Reject - run
Listening for connections
New client connection with handle 0x002a
Sending L2CAP Request from client
Client received response code 0x15
Unexpected L2CAP response code (expected 0x18)
L2CAP LE EATT Server - Reject - test failed
> ACL Data RX: Handle 42 flags 0x02 dlen 26
LE L2CAP: Enhanced Credit Connection Request (0x17) ident 1 len 18
PSM: 39 (0x0027)
MTU: 64
MPS: 64
Credits: 5
Source CID: 65
Source CID: 66
Source CID: 67
Source CID: 68
Source CID: 69
< ACL Data TX: Handle 42 flags 0x00 dlen 16
LE L2CAP: LE Connection Response (0x15) ident 1 len 8
invalid size
00 00 00 00 00 00 06 00
L2CAP LE EATT Server - Reject - run
Listening for connections
New client connection with handle 0x002a
Sending L2CAP Request from client
Client received response code 0x18
L2CAP LE EATT Server - Reject - test passed
Fixes:
|
||
Siddharth Kawar
|
943d045a6d |
SUNRPC: fix shutdown of NFS TCP client socket
NFS server Duplicate Request Cache (DRC) algorithms rely on NFS clients reconnecting using the same local TCP port. Unique NFS operations are identified by the per-TCP connection set of XIDs. This prevents file corruption when non-idempotent NFS operations are retried. Currently, NFS client TCP connections are using different local TCP ports when reconnecting to NFS servers. After an NFS server initiates shutdown of the TCP connection, the NFS client's TCP socket is set to NULL after the socket state has reached TCP_LAST_ACK(9). When reconnecting, the new socket attempts to reuse the same local port but fails with EADDRNOTAVAIL (99). This forces the socket to use a different local TCP port to reconnect to the remote NFS server. State Transition and Events: TCP_CLOSE_WAIT(8) TCP_LAST_ACK(9) connect(fail EADDRNOTAVAIL(99)) TCP_CLOSE(7) bind on new port connect success dmesg excerpts showing reconnect switching from TCP local port of 926 to 763 after commit |
||
Brian Gix
|
52dd5e964a |
Bluetooth: Remove "Power-on" check from Mesh feature
The Bluetooth mesh experimental feature enable was requiring the
controller to be powered off in order for the Enable to work. Mesh is
supposed to be enablable regardless of the controller state, and created
an unintended requirement that the mesh daemon be started before the
classic bluetoothd daemon.
Fixes:
|
||
Min Li
|
1c66bee492 |
Bluetooth: Fix race condition in hci_cmd_sync_clear
There is a potential race condition in hci_cmd_sync_work and
hci_cmd_sync_clear, and could lead to use-after-free. For instance,
hci_cmd_sync_work is added to the 'req_workqueue' after cancel_work_sync
The entry of 'cmd_sync_work_list' may be freed in hci_cmd_sync_clear, and
causing kernel panic when it is used in 'hci_cmd_sync_work'.
Here's the call trace:
dump_stack_lvl+0x49/0x63
print_report.cold+0x5e/0x5d3
? hci_cmd_sync_work+0x282/0x320
kasan_report+0xaa/0x120
? hci_cmd_sync_work+0x282/0x320
__asan_report_load8_noabort+0x14/0x20
hci_cmd_sync_work+0x282/0x320
process_one_work+0x77b/0x11c0
? _raw_spin_lock_irq+0x8e/0xf0
worker_thread+0x544/0x1180
? poll_idle+0x1e0/0x1e0
kthread+0x285/0x320
? process_one_work+0x11c0/0x11c0
? kthread_complete_and_exit+0x30/0x30
ret_from_fork+0x22/0x30
</TASK>
Allocated by task 266:
kasan_save_stack+0x26/0x50
__kasan_kmalloc+0xae/0xe0
kmem_cache_alloc_trace+0x191/0x350
hci_cmd_sync_queue+0x97/0x2b0
hci_update_passive_scan+0x176/0x1d0
le_conn_complete_evt+0x1b5/0x1a00
hci_le_conn_complete_evt+0x234/0x340
hci_le_meta_evt+0x231/0x4e0
hci_event_packet+0x4c5/0xf00
hci_rx_work+0x37d/0x880
process_one_work+0x77b/0x11c0
worker_thread+0x544/0x1180
kthread+0x285/0x320
ret_from_fork+0x22/0x30
Freed by task 269:
kasan_save_stack+0x26/0x50
kasan_set_track+0x25/0x40
kasan_set_free_info+0x24/0x40
____kasan_slab_free+0x176/0x1c0
__kasan_slab_free+0x12/0x20
slab_free_freelist_hook+0x95/0x1a0
kfree+0xba/0x2f0
hci_cmd_sync_clear+0x14c/0x210
hci_unregister_dev+0xff/0x440
vhci_release+0x7b/0xf0
__fput+0x1f3/0x970
____fput+0xe/0x20
task_work_run+0xd4/0x160
do_exit+0x8b0/0x22a0
do_group_exit+0xba/0x2a0
get_signal+0x1e4a/0x25b0
arch_do_signal_or_restart+0x93/0x1f80
exit_to_user_mode_prepare+0xf5/0x1a0
syscall_exit_to_user_mode+0x26/0x50
ret_from_fork+0x15/0x30
Fixes:
|
||
Pauli Virtanen
|
2f10e40a94 |
Bluetooth: ISO: fix timestamped HCI ISO data packet parsing
Use correct HCI ISO data packet header struct when the packet has
timestamp. The timestamp, when present, goes before the other fields
(Core v5.3 4E 5.4.5), so the structs are not compatible.
Fixes:
|
||
Luiz Augusto von Dentz
|
876e78104f |
Bluetooth: hci_core: Detect if an ACL packet is in fact an ISO packet
Because some transports don't have a dedicated type for ISO packets (see |
||
Zhengping Jiang
|
3c44a431d6 |
Bluetooth: hci_sync: Resume adv with no RPA when active scan
The address resolution should be disabled during the active scan,
so all the advertisements can reach the host. The advertising
has to be paused before disabling the address resolution,
because the advertising will prevent any changes to the resolving
list and the address resolution status. Skipping this will cause
the hci error and the discovery failure.
According to the bluetooth specification:
"7.8.44 LE Set Address Resolution Enable command
This command shall not be used when:
- Advertising (other than periodic advertising) is enabled,
- Scanning is enabled, or
- an HCI_LE_Create_Connection, HCI_LE_Extended_Create_Connection, or
HCI_LE_Periodic_Advertising_Create_Sync command is outstanding."
If the host is using RPA, the controller needs to generate RPA for
the advertising, so the advertising must remain paused during the
active scan.
If the host is not using RPA, the advertising can be resumed after
disabling the address resolution.
Fixes:
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