github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-30 18:13:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

xfrm: fix the condition on x->pcpu_num in xfrm_sa_len

Browse Source 
pcpu_num = 0 is a valid value. The marker for "unset pcpu_num" which
makes copy_to_user_state_extra not add the XFRMA_SA_PCPU attribute is
UINT_MAX.

Fixes: 1ddf9916ac ("xfrm: Add support for per cpu xfrm state handling.")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Sabrina Dubroca 2026-02-24 00:05:12 +01:00 committed by Steffen Klassert
parent aa8a3f3c67
commit b57defcf8f
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
net/xfrm/xfrm_user.c
View File

@ -3676,7 +3676,7 @@ static inline unsigned int xfrm_sa_len(struct xfrm_state *x)
}
if (x->if_id)
l += nla_total_size(sizeof(x->if_id));
if (x->pcpu_num)
if (x->pcpu_num != UINT_MAX)
l += nla_total_size(sizeof(x->pcpu_num));
/* Must count x->lastused as it may become non-zero behind our back. */