* [PATCH] io_uring: free iovec if file assignment fails
@ 2022-04-17 13:43 Jens Axboe
0 siblings, 0 replies; only message in thread
From: Jens Axboe @ 2022-04-17 13:43 UTC (permalink / raw)
To: io-uring
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: [email protected]
Fixes: 584b0180f0f4 ("io_uring: move read/write file prep state into actual opcode handler")
Signed-off-by: Jens Axboe <[email protected]>
---
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 4479013854d2..24409dd07239 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3832,8 +3832,10 @@ static int io_read(struct io_kiocb *req, unsigned int issue_flags)
iovec = NULL;
}
ret = io_rw_init_file(req, FMODE_READ);
- if (unlikely(ret))
+ if (unlikely(ret)) {
+ kfree(iovec);
return ret;
+ }
req->result = iov_iter_count(&s->iter);
if (force_nonblock) {
@@ -3958,8 +3960,10 @@ static int io_write(struct io_kiocb *req, unsigned int issue_flags)
iovec = NULL;
}
ret = io_rw_init_file(req, FMODE_WRITE);
- if (unlikely(ret))
+ if (unlikely(ret)) {
+ kfree(iovec);
return ret;
+ }
req->result = iov_iter_count(&s->iter);
if (force_nonblock) {
--
Jens Axboe
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2022-04-17 13:43 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-04-17 13:43 [PATCH] io_uring: free iovec if file assignment fails Jens Axboe
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox