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| author | Jens Axboe <axboe@kernel.dk> | 2023-12-21 08:49:18 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-12-21 08:49:18 -0700 |
| commit | 0a535eddbe0dc1de4386046ab849f08aeb2f8faf (patch) | |
| tree | c15ad68745ed65233477ea63047a778727ff54a0 /io_uring/kbuf.h | |
| parent | 6e5e6d274956305f1fc0340522b38f5f5be74bdb (diff) | |
| download | linux-stable-0a535eddbe0dc1de4386046ab849f08aeb2f8faf.tar.gz linux-stable-0a535eddbe0dc1de4386046ab849f08aeb2f8faf.tar.bz2 linux-stable-0a535eddbe0dc1de4386046ab849f08aeb2f8faf.zip | |
io_uring/rw: ensure io->bytes_done is always initialized
If IOSQE_ASYNC is set and we fail importing an iovec for a readv or
writev request, then we leave ->bytes_done uninitialized and hence the
eventual failure CQE posted can potentially have a random res value
rather than the expected -EINVAL.
Setup ->bytes_done before potentially failing, so we have a consistent
value if we fail the request early.
Cc: stable@vger.kernel.org
Reported-by: xingwei lee <xrivendell7@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/kbuf.h')
0 files changed, 0 insertions, 0 deletions