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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2024-04-05 22:43:45 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-17 12:23:32 +0300 |
| commit | c3f787a3eafe519c93df9abbb0ca5145861c8d0f (patch) | |
| tree | dff480bc297e53cd3b86513a9a15f68aaa767501 /net/netfilter/xt_recent.c | |
| parent | 419a0ffca7010216f0fc265b08558d7394fa0ba7 (diff) | |
| download | linux-c3f787a3eafe519c93df9abbb0ca5145861c8d0f.tar.xz | |
Bluetooth: RFCOMM: Fix not validating setsockopt user input
[ Upstream commit a97de7bff13b1cc825c1b1344eaed8d6c2d3e695 ]
syzbot reported rfcomm_sock_setsockopt_old() is copying data without
checking user input length.
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset
include/linux/sockptr.h:49 [inline]
BUG: KASAN: slab-out-of-bounds in copy_from_sockptr
include/linux/sockptr.h:55 [inline]
BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt_old
net/bluetooth/rfcomm/sock.c:632 [inline]
BUG: KASAN: slab-out-of-bounds in rfcomm_sock_setsockopt+0x893/0xa70
net/bluetooth/rfcomm/sock.c:673
Read of size 4 at addr ffff8880209a8bc3 by task syz-executor632/5064
Fixes: 9f2c8a03fbb3 ("Bluetooth: Replace RFCOMM link mode with security level")
Fixes: bb23c0ab8246 ("Bluetooth: Add support for deferring RFCOMM connection setup")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/netfilter/xt_recent.c')
0 files changed, 0 insertions, 0 deletions