diff options
| author | Florian Westphal <fw@strlen.de> | 2020-12-22 23:23:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-12 19:47:57 +0100 |
| commit | 281f099c5b45214760f6ea1ff958e24505602250 (patch) | |
| tree | 20fcc3ca192bdd230886c653f6b2275805d35cd5 /lib/genalloc.c | |
| parent | e59c413e8b46ff122f31649b6d3d767e3f1c532d (diff) | |
netfilter: xt_RATEEST: reject non-null terminated string from userspace
commit 6cb56218ad9e580e519dcd23bfb3db08d8692e5a upstream.
syzbot reports:
detected buffer overflow in strlen
[..]
Call Trace:
strlen include/linux/string.h:325 [inline]
strlcpy include/linux/string.h:348 [inline]
xt_rateest_tg_checkentry+0x2a5/0x6b0 net/netfilter/xt_RATEEST.c:143
strlcpy assumes src is a c-string. Check info->name before its used.
Reported-by: syzbot+e86f7c428c8c50db65b4@syzkaller.appspotmail.com
Fixes: 5859034d7eb8793 ("[NETFILTER]: x_tables: add RATEEST target")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/genalloc.c')
0 files changed, 0 insertions, 0 deletions