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Merge tag 'io_uring-6.6-2023-09-15' of git://git.kernel.dk/linux

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Pull io_uring fix from Jens Axboe:
 "Just a single fix, fixing a regression with poll first, recvmsg, and
  using a provided buffer"

* tag 'io_uring-6.6-2023-09-15' of git://git.kernel.dk/linux:
  io_uring/net: fix iter retargeting for selected buf
This commit is contained in:
Linus Torvalds
2023-09-15 13:55:29 -07:00
parent 0e494be7c5 c21a8027ad
commit 31d8fddb58
1 changed files with 5 additions and 0 deletions
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5
io_uring/net.c
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@@ -183,6 +183,10 @@ static int io_setup_async_msg(struct io_kiocb *req,
memcpy(async_msg, kmsg, sizeof(*kmsg));
if (async_msg->msg.msg_name)
async_msg->msg.msg_name = &async_msg->addr;
if ((req->flags & REQ_F_BUFFER_SELECT) && !async_msg->msg.msg_iter.nr_segs)
return -EAGAIN;
/* if were using fast_iov, set it to the new one */
if (iter_is_iovec(&kmsg->msg.msg_iter) && !kmsg->free_iov) {
size_t fast_idx = iter_iov(&kmsg->msg.msg_iter) - kmsg->fast_iov;
@@ -542,6 +546,7 @@ static int io_recvmsg_copy_hdr(struct io_kiocb *req,
struct io_async_msghdr *iomsg)
{
iomsg->msg.msg_name = &iomsg->addr;
iomsg->msg.msg_iter.nr_segs = 0;
#ifdef CONFIG_COMPAT
if (req->ctx->compat)