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(parent: 21b0c54) | patch
io_uring/kbuf: reject zero sized provided buffers
authorJens Axboe <axboe@kernel.dk>
Mon, 7 Apr 2025 13:51:23 +0000 (07:51 -0600)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 25 Apr 2025 08:45:26 +0000 (10:45 +0200)
commit35c4a652d8335d6cc3306284ab36f4f2ad031d5f
treefb56dc309b01d511cd24352ac70e4550a95690c9tree | snapshot
parent21b0c54546d605acb8149b07c67b0e624b4e9e92commit | diff
io_uring/kbuf: reject zero sized provided buffers

commit cf960726eb65e8d0bfecbcce6cf95f47b1ffa6cc upstream.

This isn't fixing a real issue, but there's also zero point in going
through group and buffer setup, when the buffers are going to be
rejected once attempted to get used.

Cc: stable@vger.kernel.org
Reported-by: syzbot+58928048fd1416f1457c@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
io_uring/kbuf.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git