diff options
| author | Jan Engelhardt <jengelh@medozas.de> | 2011-03-02 12:10:13 +0100 |
|---|---|---|
| committer | AK <andi@firstfloor.org> | 2011-03-31 11:58:20 -0700 |
| commit | 3015340ba8ece69d4f3a46319282887b1115913b (patch) | |
| tree | 5b781a3c9434e9eecdaab4b15b5688ed31a4d805 /drivers | |
| parent | 125124738e4704bf30ac47a59c96f7e3cbfb8161 (diff) | |
netfilter: nf_log: avoid oops in (un)bind with invalid nfproto values
commit 9ef0298a8e5730d9a46d640014c727f3b4152870 upstream.
Like many other places, we have to check that the array index is
within allowed limits, or otherwise, a kernel oops and other nastiness
can ensue when we access memory beyond the end of the array.
[ 5954.115381] BUG: unable to handle kernel paging request at 0000004000000000
[ 5954.120014] IP: __find_logger+0x6f/0xa0
[ 5954.123979] nf_log_bind_pf+0x2b/0x70
[ 5954.123979] nfulnl_recv_config+0xc0/0x4a0 [nfnetlink_log]
[ 5954.123979] nfnetlink_rcv_msg+0x12c/0x1b0 [nfnetlink]
...
The problem goes back to v2.6.30-rc1~1372~1342~31 where nf_log_bind
was decoupled from nf_log_register.
Reported-by: Miguel Di Ciurcio Filho <miguel.filho@gmail.com>,
via irc.freenode.net/#netfilter
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions