syzbot


general protection fault in percpu_ref_put
Status: upstream: reported C repro on 2021/09/21 02:55
Reported-by: syzbot+533f389d4026d86a2a95@syzkaller.appspotmail.com
Fix commit: 78cc316e9583 bpf, cgroup: Assign cgroup in cgroup_sk_alloc when called from interrupt
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte 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-kmsan-gce ci-upstream-kmsan-gce-386 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-qemu2-riscv64]
First crash: 75d, last: 61d

Cause bisection: introduced by (bisect log) :
commit 020250f31c4c75ac7687a673e29c00786582a5f4
Author: Dmitry Kadashev <dkadashev@gmail.com>
Date: Thu Jul 8 06:34:43 2021 +0000

  namei: make do_linkat() take struct filename

Crash: KASAN: use-after-free Read in __d_alloc (log)
Repro: syz .config

Sample crash report:

Crashes (412):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/09/18 18:06 upstream 4357f03d6611 70b76c1d .config log report syz C general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/18 05:36 upstream ddf21bd8ab98 70b76c1d .config log report syz general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/18 03:08 upstream ddf21bd8ab98 70b76c1d .config log report syz general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/10/01 02:03 upstream 02d5e016800d 1d849ab4 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/10/01 00:16 upstream 02d5e016800d 1d849ab4 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/30 23:05 upstream 02d5e016800d 1d849ab4 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/30 21:44 upstream 02d5e016800d 1d849ab4 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/30 20:17 upstream 02d5e016800d 1d849ab4 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/30 15:49 upstream 02d5e016800d be530f6c .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 20:10 upstream 02d5e016800d be530f6c .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 18:30 upstream 02d5e016800d be530f6c .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 17:28 upstream 02d5e016800d be530f6c .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 16:21 upstream 02d5e016800d be530f6c .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 15:20 upstream a4e6f95a891a be530f6c .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 08:15 upstream a4e6f95a891a d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 07:25 upstream a4e6f95a891a d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 06:08 upstream a4e6f95a891a d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/29 04:46 upstream a4e6f95a891a d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 21:39 upstream d33bec7b3dfa d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 18:19 upstream d33bec7b3dfa d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 16:59 upstream d33bec7b3dfa d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 15:45 upstream d33bec7b3dfa d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 14:37 upstream 0513e464f900 d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 13:21 upstream 0513e464f900 d82cb927 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 07:15 upstream 0513e464f900 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 06:00 upstream 0513e464f900 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 02:11 upstream 0513e464f900 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/28 00:56 upstream 0513e464f900 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 23:26 upstream 0513e464f900 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 19:31 upstream 5816b3e6577e 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 18:03 upstream 5816b3e6577e 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 12:32 upstream 5816b3e6577e 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 12:29 upstream 5816b3e6577e 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 11:22 upstream 5816b3e6577e 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 10:13 upstream 5816b3e6577e 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 07:37 upstream 996148ee05d0 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/27 06:24 upstream 996148ee05d0 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 23:59 upstream 996148ee05d0 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 22:52 upstream 996148ee05d0 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 21:50 upstream 996148ee05d0 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 20:44 upstream 996148ee05d0 78494d16 .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 15:25 upstream a3b397b4fffb 8cac236e .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 14:18 upstream a3b397b4fffb 8cac236e .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 13:02 upstream a3b397b4fffb 8cac236e .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 05:15 upstream a5e0aceabef6 8cac236e .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/26 03:19 upstream a5e0aceabef6 8cac236e .config log report info general protection fault in percpu_ref_put
ci-upstream-kasan-gce-smack-root 2021/09/17 02:51 upstream bdb575f87217 5b989942 .config log report info general protection fault in percpu_ref_put