linux/net/netrom
Nguyen Dinh Phi 517a16b1a8 netrom: Decrease sock refcount when sock timers expire
Commit 63346650c1 ("netrom: switch to sock timer API") switched to use
sock timer API. It replaces mod_timer() by sk_reset_timer(), and
del_timer() by sk_stop_timer().

Function sk_reset_timer() will increase the refcount of sock if it is
called on an inactive timer, hence, in case the timer expires, we need to
decrease the refcount ourselves in the handler, otherwise, the sock
refcount will be unbalanced and the sock will never be freed.

Signed-off-by: Nguyen Dinh Phi <phind.uet@gmail.com>
Reported-by: syzbot+10f1194569953b72f1ae@syzkaller.appspotmail.com
Fixes: 63346650c1 ("netrom: switch to sock timer API")
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-18 09:48:59 -07:00
..
af_netrom.c net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
nr_dev.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
nr_in.c net: netrom: nr_in: Remove redundant assignment to ns 2021-04-28 13:59:08 -07:00
nr_loopback.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
nr_out.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
nr_route.c net: netrom: Fix fall-through warnings for Clang 2021-05-17 19:57:08 -05:00
nr_subr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
nr_timer.c netrom: Decrease sock refcount when sock timers expire 2021-07-18 09:48:59 -07:00
sysctl_net_netrom.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00