syzbot


KASAN: use-after-free Read in io_uring_setup (2)
Status: upstream: reported on 2020/07/30 19:21
Reported-by: syzbot+9d46305e76057f30c74e@syzkaller.appspotmail.com
Fix commit: d1719f70 io_uring: don't touch 'ctx' after installing file descriptor
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 12d, last: 12d
similar bugs (1):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream KASAN: use-after-free Read in io_uring_setup syz cause 1 289d 288d 14/17 fixed on 2019/11/23 02:56

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-linux-next-kasan-gce-root 2020/07/30 09:05 linux-next 04b45717 233283a1 .config log report axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk