]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 6b117c2) | patch
netfilter: ctnetlink: don't permit ct creation with random tuple
authorFlorian Westphal <fw@strlen.de>
Mon, 11 Feb 2013 23:22:38 +0000 (23:22 +0000)
committerPablo Neira Ayuso <pablo@gnumonks.org>
Tue, 12 Feb 2013 22:18:15 +0000 (23:18 +0100)
commit5d0b85797efca5057f068c6e31037264213125c4
tree7668d4cdb5ba8400065f8464d708b9541e61a073tree | snapshot
parent6b117c2cc8c85105024bffe3ab0fa334bc5eba62commit | diff
netfilter: ctnetlink: don't permit ct creation with random tuple

Userspace can cause kernel panic by not specifying orig/reply
tuple: kernel will create a tuple with random stack values.

Problem is that tuple.dst.dir will be random, too, which
causes nf_ct_tuplehash_to_ctrack() to return garbage.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
net/netfilter/nf_conntrack_netlink.c diff | blob | history
Linux Kernel Source Tree.