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| author | Florian Westphal <fw@strlen.de> | 2022-06-15 16:36:54 +0300 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2022-06-18 00:31:20 +0300 |
| commit | 394e771684f7a2cd4e154647bff50084c31bc7cf (patch) | |
| tree | 0fc876684e564c875a2ca69b16c7fe7c307bd4ce /net/netfilter | |
| parent | b1fd94e704571f98b21027340eecf821b2bdffba (diff) | |
| download | linux-394e771684f7a2cd4e154647bff50084c31bc7cf.tar.xz | |
netfilter: cttimeout: fix slab-out-of-bounds read typo in cttimeout_net_exit
syzbot reports:
BUG: KASAN: slab-out-of-bounds in __list_del_entry_valid+0xcc/0xf0 lib/list_debug.c:42
[..]
list_del include/linux/list.h:148 [inline]
cttimeout_net_exit+0x211/0x540 net/netfilter/nfnetlink_cttimeout.c:617
Problem is the wrong name of the list member, so container_of() result is wrong.
Reported-by: <syzbot+92968395eedbdbd3617d@syzkaller.appspotmail.com>
Fixes: 78222bacfca9 ("netfilter: cttimeout: decouple unlink and free on netns destruction")
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nfnetlink_cttimeout.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index af15102bc696..f466af4f8531 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -614,7 +614,7 @@ static void __net_exit cttimeout_net_exit(struct net *net) nf_ct_untimeout(net, NULL); - list_for_each_entry_safe(cur, tmp, &pernet->nfct_timeout_freelist, head) { + list_for_each_entry_safe(cur, tmp, &pernet->nfct_timeout_freelist, free_head) { list_del(&cur->free_head); if (refcount_dec_and_test(&cur->refcnt)) |