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7172dc93d6
linux/net
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Kuniyuki Iwashima 7172dc93d6 af_unix: Add dead flag to struct scm_fp_list. 
Commit 1af2dface5 ("af_unix: Don't access successor in unix_del_edges()
during GC.") fixed use-after-free by avoid accessing edge->successor while
GC is in progress.

However, there could be a small race window where another process could
call unix_del_edges() while gc_in_progress is true and __skb_queue_purge()
is on the way.

So, we need another marker for struct scm_fp_list which indicates if the
skb is garbage-collected.

This patch adds dead flag in struct scm_fp_list and set it true before
calling __skb_queue_purge().

Fixes: 1af2dface5 ("af_unix: Don't access successor in unix_del_edges() during GC.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240508171150.50601-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:52:45 -07:00
..
6lowpan net: fill in MODULE_DESCRIPTION()s for 6LoWPAN 2024-02-09 14:12:01 -08:00
9p 9p: Fix read/write debug statements to report server reply 2024-02-12 21:18:54 +09:00
802
8021q net: annotate writes on dev->mtu from ndo_change_mtu() 2024-05-07 16:19:14 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
atm inet: introduce dst_rtable() helper 2024-04-30 18:32:38 -07:00
ax25 ax25: Remove superfuous "return" from ax25_ds_set_timer 2024-05-08 12:23:10 +01:00
batman-adv net: annotate writes on dev->mtu from ndo_change_mtu() 2024-05-07 16:19:14 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
bpf bpf: check bpf_dummy_struct_ops program params for test runs 2024-04-25 12:42:43 -07:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
caif caif: Use UTILITY_NAME_LENGTH instead of hard-coding 16 2024-04-02 18:20:00 -07:00
can linux-can-next-for-6.9-20240220 2024-02-20 15:32:45 +01:00
ceph libceph: init the cursor when preparing sparse read in msgr2 2024-03-06 12:43:01 +01:00
core af_unix: Add dead flag to struct scm_fp_list. 2024-05-10 18:52:45 -07:00
dcb
dccp net: dccp: Fix ccid2_rtt_estimator() kernel-doc 2024-05-07 16:15:08 -07:00
devlink devlink: extend devlink_param *set pointer 2024-04-22 13:05:19 -07:00
dns_resolver Networking changes for 6.8. 2024-01-11 10:07:29 -08:00
dsa net: dsa: add support switches global DSCP priority mapping 2024-05-08 10:35:10 +01:00
ethernet ethernet: Add helper for assigning packet type when dest address does not match device address 2024-04-25 08:20:54 -07:00
ethtool net: ethtool: pse-pd: Expand pse commands with the PSE PoE interface 2024-04-18 18:27:02 -07:00
handshake net/handshake: remove redundant assignment to variable ret 2024-04-16 17:14:55 -07:00
hsr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
ieee802154 net: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:41 +01:00
ife net: sched: ife: fix potential use-after-free 2023-12-15 10:50:18 +00:00
ipv4 tcp: get rid of twsk_unique() 2024-05-09 20:25:55 -07:00
ipv6 net: ipv6: fix wrong start position when receive hop-by-hop fragment 2024-05-10 10:04:06 +01:00
iucv net/iucv: Avoid explicit cpumask var allocation on stack 2024-04-02 18:19:09 -07:00
kcm net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function 2024-03-11 09:53:22 +00:00
key net: fill in MODULE_DESCRIPTION()s for af_key 2024-02-09 14:12:01 -08:00
l2tp l2tp: Support several sockets with same IP/port quadruple 2024-05-09 15:50:36 +02:00
l3mdev
lapb
llc net: Remove ctl_table sentinel elements from several networking subsystems 2024-05-03 13:29:42 +01:00
mac80211 wifi: mac80211: handle color change per link 2024-05-03 10:18:19 +02:00
mac802154 mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-03-06 21:01:26 +01:00
mctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-02-29 14:24:56 -08:00
mpls net: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:41 +01:00
mptcp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
ncsi net/ncsi: Add NC-SI 1.2 Get MC MAC Address command 2023-11-18 15:00:51 +00:00
netfilter ipvs: allow some sysctls in non-init user namespaces 2024-05-08 12:22:18 +01:00
netlabel netlabel: remove impossible return value in netlbl_bitmap_walk 2024-02-28 19:37:34 -08:00
netlink netlink: support all extack types in dumps 2024-04-23 10:09:49 -07:00
netrom net: Remove ctl_table sentinel elements from several networking subsystems 2024-05-03 13:29:42 +01:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-04-26 12:20:01 +02:00
openvswitch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-04-25 12:41:37 -07:00
packet af_packet: avoid a false positive warning in packet_setsockopt() 2024-04-08 13:19:01 +01:00
phonet Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
psample ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
qrtr net: qrtr: support suspend/hibernation 2024-04-09 14:43:28 +03:00
rds net: rds: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:42 +01:00
rfkill net: rfkill: gpio: Convert to platform remove callback returning void 2024-03-25 15:40:22 +01:00
rose net: Remove ctl_table sentinel elements from several networking subsystems 2024-05-03 13:29:42 +01:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
sched net/sched: adjust device watchdog timer to detect stopped queue at right time 2024-05-09 20:24:13 -07:00
sctp net: Remove ctl_table sentinel elements from several networking subsystems 2024-05-03 13:29:42 +01:00
smc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
strparser
sunrpc net: sunrpc: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:42 +01:00
switchdev net: bridge: switchdev: Improve error message for port_obj_add/del functions 2024-05-08 12:19:12 +01:00
tipc net: Remove ctl_table sentinel elements from several networking subsystems 2024-05-03 13:29:42 +01:00
tls Revert "net: mirror skb frag ref/unref helpers" 2024-05-03 16:05:53 -07:00
unix af_unix: Add dead flag to struct scm_fp_list. 2024-05-10 18:52:45 -07:00
vmw_vsock vsock/virtio: fix packet delivery to tap device 2024-04-02 18:00:24 -07:00
wireless Merge wireless into wireless-next 2024-05-06 16:32:51 +02:00
x25 ax.25: x.25: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:43 +01:00
xdp xsk: validate user input for XDP_{UMEM|COMPLETION}_FILL_RING 2024-04-05 22:47:22 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
compat.c file: stop exposing receive_fd_user() 2023-12-12 14:24:14 +01:00
devres.c
Kconfig net: add IEEE 802.1q specific helpers 2024-05-08 10:35:09 +01:00
Kconfig.debug
Makefile af_unix: Remove CONFIG_UNIX_SCM. 2024-01-31 16:41:16 -08:00
socket.c net: remove {revc,send}msg_copy_msghdr() from exports 2024-03-14 16:48:53 -07:00
sysctl_net.c