| commit | 3f1e53abff84cf40b1adb3455d480dd295bf42e8 | |
| author | Florian Westphal <fw@strlen.de> | |
| Wed, 4 Apr 2018 19:13:30 +0000 (4 21:13 +0200) | ||
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | |
| Mon, 9 Apr 2018 15:05:48 +0000 (9 17:05 +0200) | ||
| tree | 02cc173cea03f00726b846f9f4e0ec559e34bdbc | treesnapshot (tar.gz zip) |
| parent | 5c64576a77894a50be80be0024bed27171b55989 | commitdiff |
netfilter: ebtables: don't attempt to allocate 0-sized compat array
Dmitry reports 32bit ebtables on 64bit kernel got broken by
a recent change that returns -EINVAL when ruleset has no entries.
ebtables however only counts user-defined chains, so for the
initial table nentries will be 0.
Don't try to allocate the compat array in this case, as no user
defined rules exist no rule will need 64bit translation.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: 7d7d7e02111e9 ("netfilter: compat: reject huge allocation requests")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Dmitry reports 32bit ebtables on 64bit kernel got broken by
a recent change that returns -EINVAL when ruleset has no entries.
ebtables however only counts user-defined chains, so for the
initial table nentries will be 0.
Don't try to allocate the compat array in this case, as no user
defined rules exist no rule will need 64bit translation.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: 7d7d7e02111e9 ("netfilter: compat: reject huge allocation requests")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| net/bridge/netfilter/ebtables.c | diffblobblamehistory |