diff options
| author | Hyunwoo Kim <[email protected]> | 2023-12-09 10:05:38 +0000 |
|---|---|---|
| committer | Paolo Abeni <[email protected]> | 2023-12-12 12:24:58 +0000 |
| commit | 810c38a369a0a0ce625b5c12169abce1dd9ccd53 (patch) | |
| tree | 244458a236eab79a927e20db2ed3fa88ba89d8a6 /net/ipv4/tcp_output.c | |
| parent | atm: Fix Use-After-Free in do_vcc_ioctl (diff) | |
| download | kernel-810c38a369a0a0ce625b5c12169abce1dd9ccd53.tar.gz kernel-810c38a369a0a0ce625b5c12169abce1dd9ccd53.zip | |
net/rose: Fix Use-After-Free in rose_ioctl
Because rose_ioctl() accesses sk->sk_receive_queue
without holding a sk->sk_receive_queue.lock, it can
cause a race with rose_accept().
A use-after-free for skb occurs with the following flow.
```
rose_ioctl() -> skb_peek()
rose_accept() -> skb_dequeue() -> kfree_skb()
```
Add sk->sk_receive_queue.lock to rose_ioctl() to fix this issue.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Hyunwoo Kim <[email protected]>
Link: https://lore.kernel.org/r/20231209100538.GA407321@v4bel-B760M-AORUS-ELITE-AX
Signed-off-by: Paolo Abeni <[email protected]>
Diffstat (limited to 'net/ipv4/tcp_output.c')
0 files changed, 0 insertions, 0 deletions