syzbot


KASAN: invalid-free in io_req_caches_free
Status: upstream: reported on 2021/02/22 09:44
Reported-by: syzbot+30b4936dcdb3aafa4fb4@syzkaller.appspotmail.com
Fix commit: 8e5c66c4 io_uring: clear request count when freeing caches
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte 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 ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-qemu2-arm32 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce]
First crash: 6d14h, last: 3d18h

Sample crash report:

Crashes (5):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2021/02/25 05:16 upstream 719bbd4a fcc6d71b .config log report info KASAN: invalid-free in io_req_caches_free
ci-upstream-kasan-gce-selinux-root 2021/02/24 08:46 upstream c03c21ba fcc6d71b .config log report info KASAN: invalid-free in io_req_caches_free
ci-upstream-kasan-gce-selinux-root 2021/02/22 22:42 upstream a99163e9 c26fb06b .config log report info KASAN: invalid-free in io_req_caches_free
ci-upstream-kasan-gce-selinux-root 2021/02/22 15:52 upstream 31caf8b2 a659b3f1 .config log report info KASAN: invalid-free in io_req_caches_free
ci-upstream-kasan-gce-selinux-root 2021/02/22 09:15 upstream 31caf8b2 a659b3f1 .config log report info KASAN: invalid-free in io_req_caches_free