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| author | Pavel Begunkov <asml.silence@gmail.com> | 2023-09-07 13:50:08 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-09-07 09:02:29 -0600 |
| commit | 27122c079f5b4b4ecf1323b65700edc57e07bf6e (patch) | |
| tree | 7b25a4d76113e5914538cb67a0d97b912b1d3e34 /lib/crypto/mpi/mpi-mod.c | |
| parent | 45500dc4e01c167ee063f3dcc22f51ced5b2b1e9 (diff) | |
io_uring: fix unprotected iopoll overflow
[ 71.490669] WARNING: CPU: 3 PID: 17070 at io_uring/io_uring.c:769
io_cqring_event_overflow+0x47b/0x6b0
[ 71.498381] Call Trace:
[ 71.498590] <TASK>
[ 71.501858] io_req_cqe_overflow+0x105/0x1e0
[ 71.502194] __io_submit_flush_completions+0x9f9/0x1090
[ 71.503537] io_submit_sqes+0xebd/0x1f00
[ 71.503879] __do_sys_io_uring_enter+0x8c5/0x2380
[ 71.507360] do_syscall_64+0x39/0x80
We decoupled CQ locking from ->task_complete but haven't fixed up places
forcing locking for CQ overflows.
Fixes: ec26c225f06f5 ("io_uring: merge iopoll and normal completion paths")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'lib/crypto/mpi/mpi-mod.c')
0 files changed, 0 insertions, 0 deletions