syzbot


KASAN: stack-out-of-bounds Write in mpol_to_str
Status: fixed on 2020/05/10 10:42
Reported-by: syzbot+b055b1a6b2b958707a21@syzkaller.appspotmail.com
Fix commit: aa9f7d5172fa mm: mempolicy: require at least one nodeid for MPOL_PREFERRED
First crash: 619d, last: 615d

Cause bisection: introduced by (bisect log) [merge commit]:
commit e786741ff1b52769b044b7f4407f39cd13ee5d2d
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu Jul 11 22:36:02 2019 +0000

  Merge tag 'staging-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Crash: general protection fault in send_hsr_supervision_frame (log)
Repro: C syz .config
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
kernel panic: stack is corrupted in mpol_to_str C done 11 611d 618d 0/22 closed as dup on 2020/03/26 11:21
Patch testing requests:
Created Duration User Patch Repo Result
2020/03/26 10:36 17m penguin-kernel@i-love.sakura.ne.jp patch upstream OK

Sample crash report:

Crashes (23):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/03/25 20:37 upstream e2cf67f6689a 41f049cc .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/25 20:29 upstream e2cf67f6689a 41f049cc .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/29 22:02 upstream e595dd94515e 05736b29 .config log report
ci-upstream-kasan-gce-root 2020/03/29 21:52 upstream e595dd94515e 05736b29 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/28 19:47 upstream 69c5eea3128e f1ebdfba .config log report
ci-upstream-kasan-gce-root 2020/03/28 19:38 upstream 69c5eea3128e f1ebdfba .config log report
ci-upstream-kasan-gce-root 2020/03/28 19:19 upstream 69c5eea3128e f1ebdfba .config log report
ci-upstream-kasan-gce-root 2020/03/28 19:19 upstream 69c5eea3128e f1ebdfba .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/28 19:16 upstream 69c5eea3128e f1ebdfba .config log report
ci-upstream-kasan-gce-root 2020/03/27 01:41 upstream 9420e8ade435 6d25c5a0 .config log report
ci-upstream-kasan-gce-root 2020/03/27 01:40 upstream 9420e8ade435 6d25c5a0 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/27 01:36 upstream 9420e8ade435 6d25c5a0 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/27 01:35 upstream 9420e8ade435 6d25c5a0 .config log report
ci-upstream-kasan-gce-root 2020/03/26 12:01 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/26 11:58 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-root 2020/03/26 11:42 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-root 2020/03/26 11:41 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/26 11:37 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/26 11:37 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/26 08:14 upstream 1b649e0bcae7 e8e6c7d2 .config log report
ci-upstream-kasan-gce-root 2020/03/25 22:47 upstream e2cf67f6689a 41f049cc .config log report
ci-upstream-kasan-gce-selinux-root 2020/03/25 18:49 upstream e2cf67f6689a 41f049cc .config log report
ci-upstream-kasan-gce-root 2020/03/25 18:47 upstream e2cf67f6689a 41f049cc .config log report