Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

xfrm: fix freed block size calculation in xfrm_policy_fini()

Browse source 
Missing multiplication of block size by sizeof(struct hlist_head)
can cause xfrm_hash_free() to be called with wrong second argument
so that kfree() is called on a block allocated with vzalloc() or
__get_free_pages() or free_pages() is called with wrong order when
a namespace with enough policies is removed.

Bug introduced by commit a35f6c5d, i.e. versions >= 2.6.29 are
affected.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Change-Id: I3e431a20bebf2bb1beeb450b9e07f30bfd263f1f
This commit is contained in:
Michal Kubecek 2013-01-18 16:03:48 +01:00 committed by surblazer
parent 0992b79577
commit 0bc9330949
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_policy.c
View file

@ -2645,7 +2645,7 @@ static void xfrm_policy_fini(struct net *net)
WARN_ON(!hlist_empty(&net->xfrm.policy_inexact[dir]));
htab = &net->xfrm.policy_bydst[dir];
sz = (htab->hmask + 1);
sz = (htab->hmask + 1) * sizeof(struct hlist_head);
WARN_ON(!hlist_empty(htab->table));
xfrm_hash_free(htab->table, sz);
}