io_uring: free iovec if file assignment fails
authorJens Axboe <axboe@kernel.dk>
Sun, 17 Apr 2022 03:14:00 +0000 (21:14 -0600)
committerJens Axboe <axboe@kernel.dk>
Sun, 17 Apr 2022 03:14:00 +0000 (21:14 -0600)
commit323b190ba2debbcc03c01d2edaf1ec6b43e6ae43
tree4ca758039ff1ceda7c9b2aa8285c7e6eb9af6a6e
parent701521403cfb228536b3947035c8a6eca40d8e58
io_uring: free iovec if file assignment fails

We just return failure in this case, but we need to release the iovec
first. If we're doing IO with more than FAST_IOV segments, then the
iovec is allocated and must be freed.

Reported-by: syzbot+96b43810dfe9c3bb95ed@syzkaller.appspotmail.com
Fixes: 584b0180f0f4 ("io_uring: move read/write file prep state into actual opcode handler")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c