syzbot


UBSAN: shift-out-of-bounds in chkSuper
Status: fixed on 2021/04/09 19:46
Reported-by: syzbot+36315852ece4132ec193@syzkaller.appspotmail.com
Fix commit: 3bef198f1b17 JFS: more checks for invalid superblock
First crash: 357d, last: 287d

Cause bisection: introduced by (bisect log) [release commit]:
commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Sep 15 21:19:32 2019 +0000

  Linux 5.3

Crash: UBSAN: undefined-behaviour in chkSuper (log)
Repro: C syz .config
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
UBSAN: shift-out-of-bounds in diReadSpecial 18 286d 333d 0/22 closed as dup on 2021/01/05 16:08

Sample crash report:

Crashes (28):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2020/12/12 21:22 linux-next 14240d4c5b25 bca53db9 .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/02/20 13:00 upstream f40ddce88593 3e5ed8b4 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/02/15 03:25 upstream f40ddce88593 98682e5e .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-root 2021/02/13 12:28 upstream c6d8570e4d64 98682e5e .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-qemu-upstream 2021/02/13 09:53 upstream c6d8570e4d64 98682e5e .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-root 2021/02/12 13:54 upstream dcc0b49040c7 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/02/12 13:45 upstream dcc0b49040c7 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-selinux-root 2021/02/12 13:40 upstream dcc0b49040c7 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-selinux-root 2021/02/12 03:06 upstream 291009f656e8 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-root 2021/02/12 02:20 upstream 291009f656e8 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/02/11 22:50 upstream 291009f656e8 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/02/11 22:43 upstream 291009f656e8 a5f86b15 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-root 2021/02/06 22:36 upstream 1e0d27fce010 0655e081 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-root 2021/01/31 14:32 upstream 6642d600b541 fc9fd31e .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/01/31 01:44 upstream 8c947645151c fc9fd31e .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/01/26 18:33 upstream 13391c60da33 55a7d4df .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/01/20 10:55 upstream 45dfb8a5659a d4f4eca5 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-selinux-root 2021/01/18 00:06 upstream a1339d6355ac 813be542 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-root 2021/01/17 22:10 upstream a1339d6355ac 813be542 .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-qemu-upstream-386 2021/02/04 13:11 upstream 61556703b610 42b90a7c .config log report info UBSAN: shift-out-of-bounds in chkSuper
ci-upstream-kasan-gce-smack-root 2021/01/16 01:24 upstream f4e087c666f5 65a7a854 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/16 00:42 upstream 5ee88057889b 65a7a854 .config log report info
ci-upstream-kasan-gce-root 2021/01/11 00:19 upstream 0653161f0fac 2c1f2513 .config log report info
ci-qemu-upstream 2021/01/10 22:48 upstream 0653161f0fac 2c1f2513 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/25 06:04 upstream 3913d00ac51a c2c1d1dd .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/22 20:24 upstream 8653b778e454 04201c06 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/16 20:07 linux-next 26aed0ea32c8 04201c06 .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/12/12 14:11 linux-next 14240d4c5b25 bca53db9 .config log report info