6.17-stable review patch. If anyone has any objections, please let me know.
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From: Jens Axboe axboe@kernel.dk
commit 46447367a52965e9d35f112f5b26fc8ff8ec443d upstream.
If timestamp retriving needs to be retried and the local list of SKB's already has entries, then it's spliced back into the socket queue. However, the arguments for the splice helper are transposed, causing exactly the wrong direction of splicing into the on-stack list. Fix that up.
Cc: stable@vger.kernel.org Reported-by: Google Big Sleep big-sleep-vuln-reports+bigsleep-462435176@google.com Fixes: 9e4ed359b8ef ("io_uring/netcmd: add tx timestamping cmd support") Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- io_uring/cmd_net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/io_uring/cmd_net.c +++ b/io_uring/cmd_net.c @@ -126,7 +126,7 @@ static int io_uring_cmd_timestamp(struct
if (!unlikely(skb_queue_empty(&list))) { scoped_guard(spinlock_irqsave, &q->lock) - skb_queue_splice(q, &list); + skb_queue_splice(&list, q); } return -EAGAIN; }