diff options
| author | Florian Westphal <fw@strlen.de> | 2019-05-05 18:47:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:46:34 +0100 |
| commit | eba68981c6eb2246198d6fe8f5f959ab2ca982ff (patch) | |
| tree | cd4a446a286dc869f711f4df9c68357a052c8934 /drivers | |
| parent | b98958074cae36b6bc6b4267b06af266bc3ea511 (diff) | |
netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule
[ Upstream commit 680f6af5337c98d116e4f127cea7845339dba8da ]
If userspace provides a rule blob with trailing data after last target,
we trigger a splat, then convert ruleset to 64bit format (with trailing
data), then pass that to do_replace_finish() which then returns -EINVAL.
Erroring out right away avoids the splat plus unneeded translation and
error unwind.
Fixes: 81e675c227ec ("netfilter: ebtables: add CONFIG_COMPAT support")
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions