diff options
| author | Hyunwoo Kim <v4bel@theori.io> | 2023-12-09 05:55:18 -0500 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2023-12-15 11:54:18 -0500 |
| commit | 2e07e8348ea454615e268222ae3fc240421be768 (patch) | |
| tree | 2f11a56621670d5286765251725e03531e5fce08 /drivers/gpu/drm/amd/display/dc/basics/custom_float.c | |
| parent | 04a342cc49a8522e99c9b3346371c329d841dcd2 (diff) | |
Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg
This can cause a race with bt_sock_ioctl() because
bt_sock_recvmsg() gets the skb from sk->sk_receive_queue
and then frees it without holding lock_sock.
A use-after-free for a skb occurs with the following flow.
```
bt_sock_recvmsg() -> skb_recv_datagram() -> skb_free_datagram()
bt_sock_ioctl() -> skb_peek()
```
Add lock_sock to bt_sock_recvmsg() to fix this issue.
Cc: stable@vger.kernel.org
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/custom_float.c')
0 files changed, 0 insertions, 0 deletions