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| author |   Hyunwoo Kim <v4bel@theori.io> | 2023-12-09 05:05:38 -0500 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2023-12-12 13:24:58 +0100 |
| commit | 810c38a369a0a0ce625b5c12169abce1dd9ccd53 (patch) | |
| tree | 244458a236eab79a927e20db2ed3fa88ba89d8a6 /tools/perf/scripts/python | |
| parent | atm: Fix Use-After-Free in do_vcc_ioctl (diff) | |
| download | wireguard-linux-810c38a369a0a0ce625b5c12169abce1dd9ccd53.tar.xz wireguard-linux-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 <v4bel@theori.io>
Link: https://lore.kernel.org/r/20231209100538.GA407321@v4bel-B760M-AORUS-ELITE-AX
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions