Gavrilov Ilia 4865e9fb56 l2tp: fix incorrect parameter validation in the pppol2tp_getsockopt() function ...

[ Upstream commit 955e9876ba ]

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: 3557baabf2 ("[L2TP]: PPP over L2TP driver core")
Reviewed-by: Tom Parkin <tparkin@katalix.com>
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

l2tp_core.c

udp: annotate data-races around udp->encap_type

2023-11-20 11:58:56 +01:00

l2tp_core.h

net: ioctl: Use kernel memory on protocol ioctl callbacks

2023-06-15 22:33:26 -07:00

l2tp_debugfs.c

l2tp: l2tp_debugfs: fix Clang -Wformat warnings

2022-07-08 12:14:36 +01:00

l2tp_eth.c

l2tp: move from strlcpy with unused retval to strscpy

2022-08-22 17:59:46 -07:00

l2tp_ip6.c

l2tp: pass correct message length to ip6_append_data

2024-03-01 13:35:01 +01:00

l2tp_ip.c

inet: introduce inet->inet_flags

2023-08-16 11:09:16 +01:00

l2tp_netlink.c

genetlink: start to validate reserved header bytes

2022-08-29 12:47:15 +01:00

l2tp_ppp.c

l2tp: fix incorrect parameter validation in the pppol2tp_getsockopt() function

2024-03-26 18:19:40 -04:00

Makefile

l2tp: add tracepoint infrastructure to core

2020-08-22 12:44:37 -07:00

trace.h

l2tp: add tracepoint definitions in trace.h

2020-08-22 12:44:37 -07:00