Previously the code relied on device->pri to be NULL and to fail probing
later. We really should just return an error inside nvkm_device_ctor for
unsupported GPUs.
Fixes: 24d5ff40a7 ("drm/nouveau/device: rework mmio mapping code to get rid of second map")
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Cc: dann frazier <dann.frazier@canonical.com>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201006220528.13925-1-kherbst@redhat.com
Fix missing result check of exfat_build_inode().
And use PTR_ERR_OR_ZERO instead of PTR_ERR.
Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
6184358da0 ("riscv: Fixup static_obj() fail") attempted to elide a lockdep
failure by rearranging our kernel image to place all initdata within [_stext,
_end], thus triggering lockdep to treat these as static objects. These objects
are released and eventually reallocated, causing check_kernel_text_object() to
trigger a BUG().
This backs out the change to make [_stext, _end] all-encompassing, instead just
moving initdata. This results in initdata being outside of [__init_begin,
__init_end], which means initdata can't be freed.
Link: https://lore.kernel.org/linux-riscv/1593266228-61125-1-git-send-email-guoren@kernel.org/T/#t
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Reported-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
[Palmer: Clean up commit text]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
matching the target BTI instruction (when branch target identification
is enabled).
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Catalin Marinas:
"Fix a kernel panic in the AES crypto code caused by a BR tail call not
matching the target BTI instruction (when branch target identification
is enabled)"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
crypto: arm64: Use x16 with indirect branch to bti_c
One final pdx86 fix for Tablet Mode reporting regressions (which
make the keyboard and touchpad unusable) on various Asus notebooks.
This fix has been tested as a downstream patch in Fedora kernels for
approx. 2 weeks with no problems being reported.
Shortlog:
Hans de Goede (1):
platform/x86: asus-wmi: Fix SW_TABLET_MODE always reporting 1 on many different models
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Merge tag 'platform-drivers-x86-v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull another x86 platform driver fix from Hans de Goede:
"One final pdx86 fix for Tablet Mode reporting regressions (which make
the keyboard and touchpad unusable) on various Asus notebooks.
These regressions were caused by the asus-nb-wmi and the intel-vbtn
drivers both receiving recent patches to start reporting Tablet Mode /
to report it on more models.
Due to a miscommunication between Andy and me, Andy's earlier pull-req
only contained the fix for the intel-vbtn driver and not the fix for
the asus-nb-wmi code.
This fix has been tested as a downstream patch in Fedora kernels for
approx two weeks with no problems being reported"
* tag 'platform-drivers-x86-v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: asus-wmi: Fix SW_TABLET_MODE always reporting 1 on many different models
fbdev:
- Re-add FB_ARMCLCD for android.
- Fix global-out-of-bounds read in fbcon_get_font().
core:
- Small doc fix.
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Merge tag 'drm-fixes-2020-10-06-1' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Daniel queued these up last week and I took a long weekend so didn't
get them out, but fixing the OOB access on get font seems like
something we should land and it's cc'ed stable as well.
The other big change is a partial revert for a regression on android
on the clcd fbdev driver, and one other docs fix.
fbdev:
- Re-add FB_ARMCLCD for android
- Fix global-out-of-bounds read in fbcon_get_font()
core:
- Small doc fix"
* tag 'drm-fixes-2020-10-06-1' of git://anongit.freedesktop.org/drm/drm:
drm: drm_dsc.h: fix a kernel-doc markup
Partially revert "video: fbdev: amba-clcd: Retire elder CLCD driver"
fbcon: Fix global-out-of-bounds read in fbcon_get_font()
Fonts: Support FONT_EXTRA_WORDS macros for built-in fonts
fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h
Kernel threads intentionally do CLONE_FS in order to follow any changes
that 'init' does to set up the root directory (or cwd).
It is admittedly a bit odd, but it avoids the situation where 'init'
does some extensive setup to initialize the system environment, and then
we execute a usermode helper program, and it uses the original FS setup
from boot time that may be very limited and incomplete.
[ Both Al Viro and Eric Biederman point out that 'pivot_root()' will
follow the root regardless, since it fixes up other users of root (see
chroot_fs_refs() for details), but overmounting root and doing a
chroot() would not. ]
However, Vegard Nossum noticed that the CLONE_FS not only means that we
follow the root and current working directories, it also means we share
umask with whatever init changed it to. That wasn't intentional.
Just reset umask to the original default (0022) before actually starting
the usermode helper program.
Reported-by: Vegard Nossum <vegard.nossum@oracle.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tetsuo Handa reports that splice() can return 0 before the real EOF, if
the data in the splice source pipe is an empty pipe buffer. That empty
pipe buffer case doesn't happen in any normal situation, but you can
trigger it by doing a write to a pipe that fails due to a page fault.
Tetsuo has a test-case to show the behavior:
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
const int fd = open("/tmp/testfile", O_WRONLY | O_CREAT, 0600);
int pipe_fd[2] = { -1, -1 };
pipe(pipe_fd);
write(pipe_fd[1], NULL, 4096);
/* This splice() should wait unless interrupted. */
return !splice(pipe_fd[0], NULL, fd, NULL, 65536, 0);
}
which results in
write(5, NULL, 4096) = -1 EFAULT (Bad address)
splice(4, NULL, 3, NULL, 65536, 0) = 0
and this can confuse splice() users into believing they have hit EOF
prematurely.
The issue was introduced when the pipe write code started pre-allocating
the pipe buffers before copying data from user space.
This is modified verion of Tetsuo's original patch.
Fixes: a194dfe6e6 ("pipe: Rearrange sequence in pipe_write() to preallocate slot")
Link:https://lore.kernel.org/linux-fsdevel/20201005121339.4063-1-penguin-kernel@I-love.SAKURA.ne.jp/
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Acked-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The AES code uses a 'br x7' as part of a function called by
a macro. That branch needs a bti_j as a target. This results
in a panic as seen below. Using x16 (or x17) with an indirect
branch keeps the target bti_c.
Bad mode in Synchronous Abort handler detected on CPU1, code 0x34000003 -- BTI
CPU: 1 PID: 265 Comm: cryptomgr_test Not tainted 5.8.11-300.fc33.aarch64 #1
pstate: 20400c05 (nzCv daif +PAN -UAO BTYPE=j-)
pc : aesbs_encrypt8+0x0/0x5f0 [aes_neon_bs]
lr : aesbs_xts_encrypt+0x48/0xe0 [aes_neon_bs]
sp : ffff80001052b730
aesbs_encrypt8+0x0/0x5f0 [aes_neon_bs]
__xts_crypt+0xb0/0x2dc [aes_neon_bs]
xts_encrypt+0x28/0x3c [aes_neon_bs]
crypto_skcipher_encrypt+0x50/0x84
simd_skcipher_encrypt+0xc8/0xe0
crypto_skcipher_encrypt+0x50/0x84
test_skcipher_vec_cfg+0x224/0x5f0
test_skcipher+0xbc/0x120
alg_test_skcipher+0xa0/0x1b0
alg_test+0x3dc/0x47c
cryptomgr_test+0x38/0x60
Fixes: 0e89640b64 ("crypto: arm64 - Use modern annotations for assembly functions")
Cc: <stable@vger.kernel.org> # 5.6.x-
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Suggested-by: Dave P Martin <Dave.Martin@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20201006163326.2780619-1-jeremy.linton@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Merge tag 'rxrpc-fixes-20201005' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:
====================
rxrpc: Miscellaneous fixes
Here are some miscellaneous rxrpc fixes:
(1) Fix the xdr encoding of the contents read from an rxrpc key.
(2) Fix a BUG() for a unsupported encoding type.
(3) Fix missing _bh lock annotations.
(4) Fix acceptance handling for an incoming call where the incoming call
is encrypted.
(5) The server token keyring isn't network namespaced - it belongs to the
server, so there's no need. Namespacing it means that request_key()
fails to find it.
(6) Fix a leak of the server keyring.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
We got reports from GKE customers flows being reset by netfilter
conntrack unless nf_conntrack_tcp_be_liberal is set to 1.
Traces seemed to suggest ACK packet being dropped by the
packet capture, or more likely that ACK were received in the
wrong order.
wscale=7, SYN and SYNACK not shown here.
This ACK allows the sender to send 1871*128 bytes from seq 51359321 :
New right edge of the window -> 51359321+1871*128=51598809
09:17:23.389210 IP A > B: Flags [.], ack 51359321, win 1871, options [nop,nop,TS val 10 ecr 999], length 0
09:17:23.389212 IP B > A: Flags [.], seq 51422681:51424089, ack 1577, win 268, options [nop,nop,TS val 999 ecr 10], length 1408
09:17:23.389214 IP A > B: Flags [.], ack 51422681, win 1376, options [nop,nop,TS val 10 ecr 999], length 0
09:17:23.389253 IP B > A: Flags [.], seq 51424089:51488857, ack 1577, win 268, options [nop,nop,TS val 999 ecr 10], length 64768
09:17:23.389272 IP A > B: Flags [.], ack 51488857, win 859, options [nop,nop,TS val 10 ecr 999], length 0
09:17:23.389275 IP B > A: Flags [.], seq 51488857:51521241, ack 1577, win 268, options [nop,nop,TS val 999 ecr 10], length 32384
Receiver now allows to send 606*128=77568 from seq 51521241 :
New right edge of the window -> 51521241+606*128=51598809
09:17:23.389296 IP A > B: Flags [.], ack 51521241, win 606, options [nop,nop,TS val 10 ecr 999], length 0
09:17:23.389308 IP B > A: Flags [.], seq 51521241:51553625, ack 1577, win 268, options [nop,nop,TS val 999 ecr 10], length 32384
It seems the sender exceeds RWIN allowance, since 51611353 > 51598809
09:17:23.389346 IP B > A: Flags [.], seq 51553625:51611353, ack 1577, win 268, options [nop,nop,TS val 999 ecr 10], length 57728
09:17:23.389356 IP B > A: Flags [.], seq 51611353:51618393, ack 1577, win 268, options [nop,nop,TS val 999 ecr 10], length 7040
09:17:23.389367 IP A > B: Flags [.], ack 51611353, win 0, options [nop,nop,TS val 10 ecr 999], length 0
netfilter conntrack is not happy and sends RST
09:17:23.389389 IP A > B: Flags [R], seq 92176528, win 0, length 0
09:17:23.389488 IP B > A: Flags [R], seq 174478967, win 0, length 0
Now imagine ACK were delivered out of order and tcp_add_backlog() sets window based on wrong packet.
New right edge of the window -> 51521241+859*128=51631193
Normally TCP stack handles OOO packets just fine, but it
turns out tcp_add_backlog() does not. It can update the window
field of the aggregated packet even if the ACK sequence
of the last received packet is too old.
Many thanks to Alexandre Ferrieux for independently reporting the issue
and suggesting a fix.
Fixes: 4f693b55c3 ("tcp: implement coalescing on backlog queue")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Alexandre Ferrieux <alexandre.ferrieux@orange.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When get_registers() fails in set_ethernet_addr(),the uninitialized
value of node_id gets copied over as the address.
So, check the return value of get_registers().
If get_registers() executed successfully (i.e., it returns
sizeof(node_id)), copy over the MAC address using ether_addr_copy()
(instead of using memcpy()).
Else, if get_registers() failed instead, a randomly generated MAC
address is set as the MAC address instead.
Reported-by: syzbot+abbc768b560c84d92fd3@syzkaller.appspotmail.com
Tested-by: syzbot+abbc768b560c84d92fd3@syzkaller.appspotmail.com
Acked-by: Petko Manolov <petkan@nucleusys.com>
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently data fin on data packet are not handled properly:
the 'rcv_data_fin_seq' field is interpreted as the last
sequence number carrying a valid data, but for data fin
packet with valid maps we currently store map_seq + map_len,
that is, the next value.
The 'write_seq' fields carries instead the value subseguent
to the last valid byte, so in mptcp_write_data_fin() we
never detect correctly the last DSS map.
Fixes: 7279da6145 ("mptcp: Use MPTCP-level flag for sending DATA_FIN")
Fixes: 1a49b2c2a5 ("mptcp: Handle incoming 32-bit DATA_FIN values")
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean says:
====================
Fix tail dropping watermarks for Ocelot switches
This series adds a missing division by 60, and a warning to prevent that
in the future.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
There is an upper bound to the value that a watermark may hold. That
upper bound is not immediately obvious during configuration, and it
might be possible to have accidental truncation.
Actually this has happened already, add a warning to prevent it from
happening again.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tail dropping is enabled for a port when:
1. A source port consumes more packet buffers than the watermark encoded
in SYS:PORT:ATOP_CFG.ATOP.
AND
2. Total memory use exceeds the consumption watermark encoded in
SYS:PAUSE_CFG:ATOP_TOT_CFG.
The unit of these watermarks is a 60 byte memory cell. That unit is
programmed properly into ATOP_TOT_CFG, but not into ATOP. Actually when
written into ATOP, it would get truncated and wrap around.
Fixes: a556c76adc ("net: mscc: Add initial Ocelot switch support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The rcu_read_lock() is not supposed to lock the kernel_sendmsg() API
since it has the lock_sock() in qrtr_sendmsg() which will sleep. Hence,
fix it by excluding the locking for kernel_sendmsg().
While at it, let's also use radix_tree_deref_retry() to confirm the
validity of the pointer returned by radix_tree_deref_slot() and use
radix_tree_iter_resume() to resume iterating the tree properly before
releasing the lock as suggested by Doug.
Fixes: a7809ff90c ("net: qrtr: ns: Protect radix_tree_deref_slot() using rcu read locks")
Reported-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Alex Elder <elder@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit b0dbd97de1 ("platform/x86: asus-wmi: Add support for
SW_TABLET_MODE") added support for reporting SW_TABLET_MODE using the
Asus 0x00120063 WMI-device-id to see if various transformer models were
docked into their keyboard-dock (SW_TABLET_MODE=0) or if they were
being used as a tablet.
The new SW_TABLET_MODE support (naively?) assumed that non Transformer
devices would either not support the 0x00120063 WMI-device-id at all,
or would NOT set ASUS_WMI_DSTS_PRESENCE_BIT in their reply when querying
the device-id.
Unfortunately this is not true and we have received many bug reports about
this change causing the asus-wmi driver to always report SW_TABLET_MODE=1
on non Transformer devices. This causes libinput to think that these are
360 degree hinges style 2-in-1s folded into tablet-mode. Making libinput
suppress keyboard and touchpad events from the builtin keyboard and
touchpad. So effectively this causes the keyboard and touchpad to not work
on many non Transformer Asus models.
This commit fixes this by using the existing DMI based quirk mechanism in
asus-nb-wmi.c to allow using the 0x00120063 device-id for reporting
SW_TABLET_MODE on Transformer models and ignoring it on all other models.
Fixes: b0dbd97de1 ("platform/x86: asus-wmi: Add support for SW_TABLET_MODE")
Link: https://patchwork.kernel.org/patch/11780901/
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209011
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1876997
Reported-by: Samuel Čavoj <samuel@cavoj.net>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* Attempt #3 of enabling Tablet Mode reporting w/o regressions
* Improve battery recognition code in ASUS WMI driver
* Fix Kconfig dependency warning for Fujitsu and LG laptop drivers
* Add fixes in Thinkpad ACPI driver for _BCL method and NVRAM polling
* Fix power supply extended topology in Mellanox driver
* Fix memory leak in OLPC EC driver
* Avoid static struct device in Intel PMC core driver
* Add support for the touchscreen found in MPMAN Converter9 2-in-1
* Update MAINTAINERS to reflect the real state of affairs
The following is an automated git shortlog grouped by driver:
asus-nb-wmi:
- Revert "Do not load on Asus T100TA and T200TA"
asus-wmi:
- Add BATC battery name to the list of supported
intel_pmc_core:
- do not create a static struct device
intel-vbtn:
- Switch to an allow-list for SW_TABLET_MODE reporting
- Revert "Fix SW_TABLET_MODE always reporting 1 on the HP Pavilion 11 x360"
- Fix SW_TABLET_MODE always reporting 1 on the HP Pavilion 11 x360
MAINTAINERS:
- Add Mark Gross and Hans de Goede as x86 platform drivers maintainers
mlx-platform:
- Fix extended topology configuration for power supply units
pcengines-apuv2:
- Fix typo on define of AMD_FCH_GPIO_REG_GPIO55_DEVSLP0
Platform:
- fix kconfig dependency warning for FUJITSU_LAPTOP
- fix kconfig dependency warning for LG_LAPTOP
- OLPC: Fix memleak in olpc_ec_probe
thinkpad_acpi:
- re-initialize ACPI buffer size when reuse
- initialize tp_nvram_state variable
- fix underline length build warning
touchscreen_dmi:
- Add info for the MPMAN Converter9 2-in-1
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Merge tag 'platform-drivers-x86-v5.9-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Andy Shevchenko:
"We have some fixes for Tablet Mode reporting in particular, that users
are complaining a lot about.
Summary:
- Attempt #3 of enabling Tablet Mode reporting w/o regressions
- Improve battery recognition code in ASUS WMI driver
- Fix Kconfig dependency warning for Fujitsu and LG laptop drivers
- Add fixes in Thinkpad ACPI driver for _BCL method and NVRAM polling
- Fix power supply extended topology in Mellanox driver
- Fix memory leak in OLPC EC driver
- Avoid static struct device in Intel PMC core driver
- Add support for the touchscreen found in MPMAN Converter9 2-in-1
- Update MAINTAINERS to reflect the real state of affairs"
* tag 'platform-drivers-x86-v5.9-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: thinkpad_acpi: re-initialize ACPI buffer size when reuse
MAINTAINERS: Add Mark Gross and Hans de Goede as x86 platform drivers maintainers
platform/x86: intel-vbtn: Switch to an allow-list for SW_TABLET_MODE reporting
platform/x86: intel-vbtn: Revert "Fix SW_TABLET_MODE always reporting 1 on the HP Pavilion 11 x360"
platform/x86: intel_pmc_core: do not create a static struct device
platform/x86: mlx-platform: Fix extended topology configuration for power supply units
platform/x86: pcengines-apuv2: Fix typo on define of AMD_FCH_GPIO_REG_GPIO55_DEVSLP0
platform/x86: fix kconfig dependency warning for FUJITSU_LAPTOP
platform/x86: fix kconfig dependency warning for LG_LAPTOP
platform/x86: thinkpad_acpi: initialize tp_nvram_state variable
platform/x86: intel-vbtn: Fix SW_TABLET_MODE always reporting 1 on the HP Pavilion 11 x360
platform/x86: asus-wmi: Add BATC battery name to the list of supported
platform/x86: asus-nb-wmi: Revert "Do not load on Asus T100TA and T200TA"
platform/x86: touchscreen_dmi: Add info for the MPMAN Converter9 2-in-1
Documentation: laptops: thinkpad-acpi: fix underline length build warning
Platform: OLPC: Fix memleak in olpc_ec_probe
Pull networking fixes from David Miller:
1) Make sure SKB control block is in the proper state during IPSEC
ESP-in-TCP encapsulation. From Sabrina Dubroca.
2) Various kinds of attributes were not being cloned properly when we
build new xfrm_state objects from existing ones. Fix from Antony
Antony.
3) Make sure to keep BTF sections, from Tony Ambardar.
4) TX DMA channels need proper locking in lantiq driver, from Hauke
Mehrtens.
5) Honour route MTU during forwarding, always. From Maciej
Żenczykowski.
6) Fix races in kTLS which can result in crashes, from Rohit
Maheshwari.
7) Skip TCP DSACKs with rediculous sequence ranges, from Priyaranjan
Jha.
8) Use correct address family in xfrm state lookups, from Herbert Xu.
9) A bridge FDB flush should not clear out user managed fdb entries
with the ext_learn flag set, from Nikolay Aleksandrov.
10) Fix nested locking of netdev address lists, from Taehee Yoo.
11) Fix handling of 32-bit DATA_FIN values in mptcp, from Mat Martineau.
12) Fix r8169 data corruptions on RTL8402 chips, from Heiner Kallweit.
13) Don't free command entries in mlx5 while comp handler could still be
running, from Eran Ben Elisha.
14) Error flow of request_irq() in mlx5 is busted, due to an off by one
we try to free and IRQ never allocated. From Maor Gottlieb.
15) Fix leak when dumping netlink policies, from Johannes Berg.
16) Sendpage cannot be performed when a page is a slab page, or the page
count is < 1. Some subsystems such as nvme were doing so. Create a
"sendpage_ok()" helper and use it as needed, from Coly Li.
17) Don't leak request socket when using syncookes with mptcp, from
Paolo Abeni.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (111 commits)
net/core: check length before updating Ethertype in skb_mpls_{push,pop}
net: mvneta: fix double free of txq->buf
net_sched: check error pointer in tcf_dump_walker()
net: team: fix memory leak in __team_options_register
net: typhoon: Fix a typo Typoon --> Typhoon
net: hinic: fix DEVLINK build errors
net: stmmac: Modify configuration method of EEE timers
tcp: fix syn cookied MPTCP request socket leak
libceph: use sendpage_ok() in ceph_tcp_sendpage()
scsi: libiscsi: use sendpage_ok() in iscsi_tcp_segment_map()
drbd: code cleanup by using sendpage_ok() to check page for kernel_sendpage()
tcp: use sendpage_ok() to detect misused .sendpage
nvme-tcp: check page by sendpage_ok() before calling kernel_sendpage()
net: add WARN_ONCE in kernel_sendpage() for improper zero-copy send
net: introduce helper sendpage_ok() in include/linux/net.h
net: usb: pegasus: Proper error handing when setting pegasus' MAC address
net: core: document two new elements of struct net_device
netlink: fix policy dump leak
net/mlx5e: Fix race condition on nhe->n pointer in neigh update
net/mlx5e: Fix VLAN create flow
...
If someone calls setsockopt() twice to set a server key keyring, the first
keyring is leaked.
Fix it to return an error instead if the server key keyring is already set.
Fixes: 17926a7932 ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
Signed-off-by: David Howells <dhowells@redhat.com>
The keyring containing the server's tokens isn't network-namespaced, so it
shouldn't be looked up with a network namespace. It is expected to be
owned specifically by the server, so namespacing is unnecessary.
Fixes: a58946c158 ("keys: Pass the network namespace into request_key mechanism")
Signed-off-by: David Howells <dhowells@redhat.com>
When a new incoming call arrives at an userspace rxrpc socket on a new
connection that has a security class set, the code currently pushes it onto
the accept queue to hold a ref on it for the socket. This doesn't work,
however, as recvmsg() pops it off, notices that it's in the SERVER_SECURING
state and discards the ref. This means that the call runs out of refs too
early and the kernel oopses.
By contrast, a kernel rxrpc socket manually pre-charges the incoming call
pool with calls that already have user call IDs assigned, so they are ref'd
by the call tree on the socket.
Change the mode of operation for userspace rxrpc server sockets to work
like this too. Although this is a UAPI change, server sockets aren't
currently functional.
Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Signed-off-by: David Howells <dhowells@redhat.com>
conn->state_lock may be taken in softirq mode, but a previous patch
replaced an outer lock in the response-packet event handling code, and lost
the _bh from that when doing so.
Fix this by applying the _bh annotation to the state_lock locking.
Fixes: a1399f8bb0 ("rxrpc: Call channels should have separate call number spaces")
Signed-off-by: David Howells <dhowells@redhat.com>
If rxrpc_read() (which allows KEYCTL_READ to read a key), sees a token of a
type it doesn't recognise, it can BUG in a couple of places, which is
unnecessary as it can easily get back to userspace.
Fix this to print an error message instead.
Fixes: 99455153d0 ("RxRPC: Parse security index 5 keys (Kerberos 5)")
Signed-off-by: David Howells <dhowells@redhat.com>
The session key should be encoded with just the 8 data bytes and
no length; ENCODE_DATA precedes it with a 4 byte length, which
confuses some existing tools that try to parse this format.
Add an ENCODE_BYTES macro that does not include a length, and use
it for the key. Also adjust the expected length.
Note that commit 774521f353 ("rxrpc: Fix an assertion in
rxrpc_read()") had fixed a BUG by changing the length rather than
fixing the encoding. The original length was correct.
Fixes: 99455153d0 ("RxRPC: Parse security index 5 keys (Kerberos 5)")
Signed-off-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Evaluating ACPI _BCL could fail, then ACPI buffer size will be set to 0.
When reuse this ACPI buffer, AE_BUFFER_OVERFLOW will be triggered.
Re-initialize buffer size will make ACPI evaluate successfully.
Fixes: 46445b6b89 ("thinkpad-acpi: fix handle locate for video and query of _BCL")
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Currently, the memory containing DT is not reserved. Thus, that region
of memory can be reallocated or reused for other purposes. This may result
in corrupted DT for nommu virt board in Qemu. We may not face any issue
in kendryte as DT is embedded in the kernel image for that.
Fixes: 6bd33e1ece ("riscv: add nommu support")
Cc: stable@vger.kernel.org
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Openvswitch allows to drop a packet's Ethernet header, therefore
skb_mpls_push() and skb_mpls_pop() might be called with ethernet=true
and mac_len=0. In that case the pointer passed to skb_mod_eth_type()
doesn't point to an Ethernet header and the new Ethertype is written at
unexpected locations.
Fix this by verifying that mac_len is big enough to contain an Ethernet
header.
Fixes: fa4e0f8855 ("net/sched: fix corrupted L2 header with MPLS 'push' and 'pop' actions")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Acked-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
clang static analysis reports this problem:
drivers/net/ethernet/marvell/mvneta.c:3465:2: warning:
Attempt to free released memory
kfree(txq->buf);
^~~~~~~~~~~~~~~
When mvneta_txq_sw_init() fails to alloc txq->tso_hdrs,
it frees without poisoning txq->buf. The error is caught
in the mvneta_setup_txqs() caller which handles the error
by cleaning up all of the txqs with a call to
mvneta_txq_sw_deinit which also frees txq->buf.
Since mvneta_txq_sw_deinit is a general cleaner, all of the
partial cleaning in mvneta_txq_sw_deinit()'s error handling
is not needed.
Fixes: 2adb719d74 ("net: mvneta: Implement software TSO")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Although we take RTNL on dump path, it is possible to
skip RTNL on insertion path. So the following race condition
is possible:
rtnl_lock() // no rtnl lock
mutex_lock(&idrinfo->lock);
// insert ERR_PTR(-EBUSY)
mutex_unlock(&idrinfo->lock);
tc_dump_action()
rtnl_unlock()
So we have to skip those temporary -EBUSY entries on dump path
too.
Reported-and-tested-by: syzbot+b47bc4f247856fb4d9e1@syzkaller.appspotmail.com
Fixes: 0fedc63fad ("net_sched: commit action insertions together")
Cc: Vlad Buslov <vladbu@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The variable "i" isn't initialized back correctly after the first loop
under the label inst_rollback gets executed.
The value of "i" is assigned to be option_count - 1, and the ensuing
loop (under alloc_rollback) begins by initializing i--.
Thus, the value of i when the loop begins execution will now become
i = option_count - 2.
Thus, when kfree(dst_opts[i]) is called in the second loop in this
order, (i.e., inst_rollback followed by alloc_rollback),
dst_optsp[option_count - 2] is the first element freed, and
dst_opts[option_count - 1] does not get freed, and thus, a memory
leak is caused.
This memory leak can be fixed, by assigning i = option_count (instead of
option_count - 1).
Fixes: 80f7c6683f ("team: add support for per-port options")
Reported-by: syzbot+69b804437cfec30deac3@syzkaller.appspotmail.com
Tested-by: syzbot+69b804437cfec30deac3@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pinned pages are not properly accounted particularly when
mapping error occurs on IOTLB update. Clean up dangling
pinned pages for the error path. As the inflight pinned
pages, specifically for memory region that strides across
multiple chunks, would need more than one free page for
book keeping and accounting. For simplicity, pin pages
for all memory in the IOVA range in one go rather than
have multiple pin_user_pages calls to make up the entire
region. This way it's easier to track and account the
pages already mapped, particularly for clean-up in the
error path.
Fixes: 4c8cf31885 ("vhost: introduce vDPA-based backend")
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Link: https://lore.kernel.org/r/1601701330-16837-3-git-send-email-si-wei.liu@oracle.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When the IOTLB device is enabled, the log_guest_addr that is passed by
userspace to the VHOST_SET_VRING_ADDR ioctl, and which is then written
to vq->log_addr, is a GIOVA. All writes to this address are translated
by log_user() to writes to an HVA, and then ultimately logged through
the corresponding GPAs in log_write_hva(). No logging will ever occur
with vq->log_addr in this case. It is thus wrong to pass vq->log_addr
and log_guest_addr to log_access_vq() which assumes they are actual
GPAs.
Introduce a new vq_log_used_access_ok() helper that only checks accesses
to the log for the used structure when there isn't an IOTLB device around.
Signed-off-by: Greg Kurz <groug@kaod.org>
Link: https://lore.kernel.org/r/160171933385.284610.10189082586063280867.stgit@bahia.lan
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
When the IOTLB device is enabled, the vring addresses we get
from userspace are GIOVAs. It is thus wrong to pass them down
to access_ok() which only takes HVAs.
Access validation is done at prefetch time with IOTLB. Teach
vq_access_ok() about that by moving the (vq->iotlb) check
from vhost_vq_access_ok() to vq_access_ok(). This prevents
vhost_vring_set_addr() to fail when verifying the accesses.
No behavior change for vhost_vq_access_ok().
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1883084
Fixes: 6b1e6cc785 ("vhost: new device IOTLB API")
Cc: jasowang@redhat.com
CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Greg Kurz <groug@kaod.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/160171931213.284610.2052489816407219136.stgit@bahia.lan
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Fix many (lots deleted here) build errors in hinic by selecting NET_DEVLINK.
ld: drivers/net/ethernet/huawei/hinic/hinic_hw_dev.o: in function `mgmt_watchdog_timeout_event_handler':
hinic_hw_dev.c:(.text+0x30a): undefined reference to `devlink_health_report'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_fw_reporter_dump':
hinic_devlink.c:(.text+0x1c): undefined reference to `devlink_fmsg_u32_pair_put'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_fw_reporter_dump':
hinic_devlink.c:(.text+0x126): undefined reference to `devlink_fmsg_binary_pair_put'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_hw_reporter_dump':
hinic_devlink.c:(.text+0x1ba): undefined reference to `devlink_fmsg_string_pair_put'
ld: hinic_devlink.c:(.text+0x227): undefined reference to `devlink_fmsg_u8_pair_put'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_devlink_alloc':
hinic_devlink.c:(.text+0xaee): undefined reference to `devlink_alloc'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_devlink_free':
hinic_devlink.c:(.text+0xb04): undefined reference to `devlink_free'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_devlink_register':
hinic_devlink.c:(.text+0xb26): undefined reference to `devlink_register'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_devlink_unregister':
hinic_devlink.c:(.text+0xb46): undefined reference to `devlink_unregister'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_health_reporters_create':
hinic_devlink.c:(.text+0xb75): undefined reference to `devlink_health_reporter_create'
ld: hinic_devlink.c:(.text+0xb95): undefined reference to `devlink_health_reporter_create'
ld: hinic_devlink.c:(.text+0xbac): undefined reference to `devlink_health_reporter_destroy'
ld: drivers/net/ethernet/huawei/hinic/hinic_devlink.o: in function `hinic_health_reporters_destroy':
Fixes: 51ba902a16 ("net-next/hinic: Initialize hw interface")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Bin Luo <luobin9@huawei.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Aviad Krawczyk <aviad.krawczyk@huawei.com>
Cc: Zhao Chen <zhaochen6@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ethtool manual stated that the tx-timer is the "the amount of time the
device should stay in idle mode prior to asserting its Tx LPI". The
previous implementation for "ethtool --set-eee tx-timer" sets the LPI TW
timer duration which is not correct. Hence, this patch fixes the
"ethtool --set-eee tx-timer" to configure the EEE LPI timer.
The LPI TW Timer will be using the defined default value instead of
"ethtool --set-eee tx-timer" which follows the EEE LS timer implementation.
Changelog V2
*Not removing/modifying the eee_timer.
*EEE LPI timer can be configured through ethtool and also the eee_timer
module param.
*EEE TW Timer will be configured with default value only, not able to be
configured through ethtool or module param. This follows the implementation
of the EEE LS Timer.
Fixes: d765955d2a ("stmmac: add the Energy Efficient Ethernet support")
Signed-off-by: Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-linus-5.9b-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fix from Juergen Gross:
"Fix a regression introduced in 5.9-rc3 which caused a system running
as fully virtualized guest under Xen to crash when using legacy
devices like a floppy"
* tag 'for-linus-5.9b-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: don't use chip_data for legacy IRQs
Here are some small USB and PHY driver fixes for 5.9-rc8
The PHY driver fix resolves an issue found by Dan Carpenter for a memory
leak.
The USB fixes fall into two groups:
- usb gadget fix from Bryan that is a fix for a previous
security fix that showed up in in-the-wild testing
- usb core driver matching bugfixes. This fixes a bug that has
plagued the both the usbip driver and syzbot testing tools
this -rc release cycle. All is now working properly so usbip
connections will work, and syzbot can get back to fuzzing USB
drivers properly.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY fixes from Greg KH:
"Here are some small USB and PHY driver fixes for 5.9-rc8
The PHY driver fix resolves an issue found by Dan Carpenter for a
memory leak.
The USB fixes fall into two groups:
- usb gadget fix from Bryan that is a fix for a previous security fix
that showed up in in-the-wild testing
- usb core driver matching bugfixes. This fixes a bug that has
plagued the both the usbip driver and syzbot testing tools this -rc
release cycle. All is now working properly so usbip connections
will work, and syzbot can get back to fuzzing USB drivers properly.
All have been in linux-next for a while with no reported issues"
* tag 'usb-5.9-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usbcore/driver: Accommodate usbip
usbcore/driver: Fix incorrect downcast
usbcore/driver: Fix specific driver selection
Revert "usbip: Implement a match function to fix usbip"
USB: gadget: f_ncm: Fix NDP16 datagram validation
phy: ti: am654: Fix a leak in serdes_am654_probe()
Pull i2c fixes from Wolfram Sang:
"Some more driver fixes for i2c"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: npcm7xx: Clear LAST bit after a failed transaction.
i2c: cpm: Fix i2c_ram structure
i2c: i801: Exclude device from suspend direct complete optimization
