diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2021-05-14 12:02:50 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-05-14 06:06:15 -0600 |
| commit | 447c19f3b5074409c794b350b10306e1da1ef4ba (patch) | |
| tree | 5839f4dfe4998bd3ddee091dc23c2fe4fb8d9427 /include/linux/platform_data/serial-sccnxp.h | |
| parent | a298232ee6b9a1d5d732aa497ff8be0d45b5bd82 (diff) | |
io_uring: fix ltout double free on completion race
Always remove linked timeout on io_link_timeout_fn() from the master
request link list, otherwise we may get use-after-free when first
io_link_timeout_fn() puts linked timeout in the fail path, and then
will be found and put on master's free.
Cc: stable@vger.kernel.org # 5.10+
Fixes: 90cd7e424969d ("io_uring: track link timeout's master explicitly")
Reported-and-tested-by: syzbot+5a864149dd970b546223@syzkaller.appspotmail.com
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/69c46bf6ce37fec4fdcd98f0882e18eb07ce693a.1620990121.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/platform_data/serial-sccnxp.h')
0 files changed, 0 insertions, 0 deletions