| Message ID | 9e326f4ad4046ddadf15bf34bf3fa58c6372f6b5.1671461985.git.asml.silence@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] io_uring/net: fix cleanup after recycle | expand |
On Mon, 19 Dec 2022 15:11:40 +0000, Pavel Begunkov wrote: > Don't access io_async_msghdr io_netmsg_recycle(), it may be reallocated. > > Applied, thanks! [1/1] io_uring/net: fix cleanup after recycle commit: 6c3e8955d4bd9811a6e1761eea412a14fb51a2e6 Best regards,
diff --git a/io_uring/net.c b/io_uring/net.c index 5229976cb582..7395b2c99f86 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -819,10 +819,10 @@ int io_recvmsg(struct io_kiocb *req, unsigned int issue_flags) goto retry_multishot; if (mshot_finished) { - io_netmsg_recycle(req, issue_flags); /* fast path, check for non-NULL to avoid function call */ if (kmsg->free_iov) kfree(kmsg->free_iov); + io_netmsg_recycle(req, issue_flags); req->flags &= ~REQ_F_NEED_CLEANUP; }
Don't access io_async_msghdr io_netmsg_recycle(), it may be reallocated. Cc: stable@vger.kernel.org Fixes: 9bb66906f23e5 ("io_uring: support multishot in recvmsg") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- io_uring/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)