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| /linux/net/ipv4/ |
| H A D | ipmr.c | diff 5c3be3e0eb44b7f978bb6cbb20ad956adb93f736 Thu Mar 07 15:23:50 CET 2024 Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru> ipmr: fix incorrect parameter validation in the ip_mroute_getsockopt() function
The 'olr' 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 'olr' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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