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| author | Florian Westphal <fw@strlen.de> | 2025-07-18 13:27:13 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2025-07-25 18:40:43 +0200 |
| commit | bf58e667af7d96c8eb9411f926a0a0955f41ce21 (patch) | |
| tree | 0903d4e002ffe8ed72d19e3301f3010d01b9dda6 /net/unix/af_unix.c | |
| parent | 897eefee2eb73ec6c119a0ca357d7b4a3e92c5ef (diff) | |
netfilter: xt_nfacct: don't assume acct name is null-terminated
BUG: KASAN: slab-out-of-bounds in .. lib/vsprintf.c:721
Read of size 1 at addr ffff88801eac95c8 by task syz-executor183/5851
[..]
string+0x231/0x2b0 lib/vsprintf.c:721
vsnprintf+0x739/0xf00 lib/vsprintf.c:2874
[..]
nfacct_mt_checkentry+0xd2/0xe0 net/netfilter/xt_nfacct.c:41
xt_check_match+0x3d1/0xab0 net/netfilter/x_tables.c:523
nfnl_acct_find_get() handles non-null input, but the error
printk relied on its presence.
Reported-by: syzbot+4ff165b9251e4d295690@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=4ff165b9251e4d295690
Tested-by: syzbot+4ff165b9251e4d295690@syzkaller.appspotmail.com
Fixes: ceb98d03eac5 ("netfilter: xtables: add nfacct match to support extended accounting")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions