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Hyunwoo Kim bff7ddb0d9 atm: Fix Use-After-Free in do_vcc_ioctl 
[ Upstream commit 24e90b9e34 ]

Because do_vcc_ioctl() accesses sk->sk_receive_queue
without holding a sk->sk_receive_queue.lock, it can
cause a race with vcc_recvmsg().
A use-after-free for skb occurs with the following flow.
```
do_vcc_ioctl() -> skb_peek()
vcc_recvmsg() -> skb_recv_datagram() -> skb_free_datagram()
```
Add sk->sk_receive_queue.lock to do_vcc_ioctl() to fix this issue.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Link: https://lore.kernel.org/r/20231209094210.GA403126@v4bel-B760M-AORUS-ELITE-AX
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-20 15:38:00 +01:00
..
addr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
addr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atm_misc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atm_sysfs.c net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
br2684.c atm: Preserve value of skb->truesize when accounting to vcc 2018-06-17 08:27:01 +09:00
clip.c atm: Preserve value of skb->truesize when accounting to vcc 2018-06-17 08:27:01 +09:00
common.c net: use skb_queue_empty_lockless() in poll() handlers 2019-11-10 11:27:48 +01:00
common.h Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
ioctl.c atm: Fix Use-After-Free in do_vcc_ioctl 2023-12-20 15:38:00 +01:00
Kconfig
lec.c atm: fix a memory leak of vcc->user_back 2020-10-01 13:14:43 +02:00
lec.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lec_arpc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpc.c atm: Preserve value of skb->truesize when accounting to vcc 2018-06-17 08:27:01 +09:00
mpc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpoa_caches.c atm: mpoa: remove 32-bit timekeeping 2017-11-30 09:26:32 -05:00
mpoa_caches.h atm: mpoa: remove 32-bit timekeeping 2017-11-30 09:26:32 -05:00
mpoa_proc.c net/atm: fix proc_mpc_write incorrect return value 2022-11-03 23:52:26 +09:00
pppoatm.c atomics/treewide: Remove atomic_inc_not_zero_hint() 2018-06-21 14:22:33 +02:00
proc.c atm: switch to proc_create_seq_private 2018-05-16 07:24:30 +02:00
protocols.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pvc.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
raw.c atm: Preserve value of skb->truesize when accounting to vcc 2018-06-17 08:27:01 +09:00
resources.c atm: hide unused procfs functions 2023-06-09 10:24:01 +02:00
resources.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
signaling.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
signaling.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
svc.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00