diff options
| author | Florian Westphal <fw@strlen.de> | 2021-04-07 21:38:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-16 11:38:14 +0200 |
| commit | b4c4e4660b37a57011677809205a3f36725b70ae (patch) | |
| tree | f8a81ccd8681ee8103fc17a28a75913fe7a20c09 /include/uapi/linux | |
| parent | 398aca5129cf9cf09f064989caab4ba43edc8dc8 (diff) | |
netfilter: x_tables: fix compat match/target pad out-of-bound write
commit b29c457a6511435960115c0f548c4360d5f4801d upstream.
xt_compat_match/target_from_user doesn't check that zeroing the area
to start of next rule won't write past end of allocated ruleset blob.
Remove this code and zero the entire blob beforehand.
Reported-by: syzbot+cfc0247ac173f597aaaa@syzkaller.appspotmail.com
Reported-by: Andy Nguyen <theflow@google.com>
Fixes: 9fa492cdc160c ("[NETFILTER]: x_tables: simplify compat API")
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 'include/uapi/linux')
0 files changed, 0 insertions, 0 deletions