Hyunwoo Kim b099c28847 atm: Fix Use-After-Free in do_vcc_ioctl ... [ Upstream commit 24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3 ] 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 15:41:15 +01:00
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addr.c
addr.h
atm_misc.c
atm_sysfs.c
br2684.c
clip.c
common.c
common.h
ioctl.c	atm: Fix Use-After-Free in do_vcc_ioctl	2023-12-20 15:41:15 +01:00
Kconfig
lec_arpc.h
lec.c
lec.h
Makefile
mpc.c
mpc.h
mpoa_caches.c
mpoa_caches.h
mpoa_proc.c
pppoatm.c	treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()	2023-04-20 12:07:32 +02:00
proc.c
protocols.h
pvc.c
raw.c
resources.c	atm: hide unused procfs functions	2023-06-09 10:28:59 +02:00
resources.h
signaling.c
signaling.h
svc.c