OpenCloudOS-Kernel/net/kcm
Gavrilov Ilia cddf9fc70b net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function
[ Upstream commit 3ed5f415133f9b7518fbe55ba9ae9a3f5e700929 ]

The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.

To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.

Fixes: ab7ac4eb98 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-26 18:19:40 -04:00
..
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
kcmproc.c net: kcm: kcmproc.c: Fix RCU list suspicious usage warning 2020-03-16 17:14:02 -07:00
kcmsock.c net: kcm: fix incorrect parameter validation in the kcm_getsockopt) function 2024-03-26 18:19:40 -04:00