syzbot


KASAN: use-after-free Read in get_mem_cgroup_from_mm
Status: fixed on 2019/06/14 18:22
Reported-by: syzbot+cbb52e396df3e565ab02@syzkaller.appspotmail.com
Fix commit: c3f3ce049f7d userfaultfd: use RCU to free the task struct when fork fails
First crash: 1129d, last: 952d

Cause bisection: the cause commit could be any of (bisect log):
  2c43838c99d9 sched/isolation: Enable CONFIG_CPU_ISOLATION=y by default
  bf29cb238dc0 sched/isolation: Make CONFIG_NO_HZ_FULL select CONFIG_CPU_ISOLATION
  d94d105329e4 sched/isolation: Document boot parameters dependency on CONFIG_CPU_ISOLATION=y
  4c470317f91e Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Read in get_mem_cgroup_from_mm C done 6 952d 966d 1/1 fixed on 2019/11/30 01:15

Sample crash report:

Crashes (375):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/04/16 09:50 upstream 618d919cae2f 505ab413 .config log report syz C
ci-upstream-kasan-gce 2019/04/16 07:35 upstream 5512320c9f6f 505ab413 .config log report syz C
ci-upstream-kasan-gce-smack-root 2019/04/16 07:24 upstream 5512320c9f6f 505ab413 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2018/12/04 15:42 upstream 0072a0c14d5b 6ad0ae61 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/02/23 19:22 linux-next 94a47529a645 18107ce0 .config log report syz C
ci-upstream-kasan-gce-root 2018/12/04 16:31 upstream 0072a0c14d5b 6ad0ae61 .config log report syz
ci-upstream-kasan-gce-smack-root 2018/12/04 16:19 upstream 0072a0c14d5b 6ad0ae61 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2018/12/04 17:22 linux-next 442b8cea2477 6ad0ae61 .config log report syz
ci-upstream-kasan-gce-smack-root 2019/04/29 18:17 upstream 37624b58542f b617407b .config log report
ci-upstream-kasan-gce 2019/04/27 20:57 upstream baf76f0c58ae b617407b .config log report
ci-upstream-kasan-gce 2019/04/27 01:30 upstream d0473f978e61 b617407b .config log report
ci-upstream-kasan-gce-root 2019/04/25 19:56 upstream f6f3e747454f f46aabc8 .config log report
ci-upstream-kasan-gce-smack-root 2019/04/18 11:50 upstream e53f31bffe1d b0e8efcb .config log report
ci-upstream-kasan-gce-smack-root 2019/04/18 06:15 upstream fe5cdef29e41 b0e8efcb .config log report
ci-upstream-kasan-gce-smack-root 2019/04/16 01:21 upstream 5512320c9f6f 505ab413 .config log report
ci-upstream-kasan-gce-root 2019/03/04 00:52 upstream 1c163f4c7b3f 1c0e457a .config log report
ci-upstream-kasan-gce-smack-root 2019/02/22 21:42 upstream 6ee2846cb4e7 6a5fcca4 .config log report
ci-upstream-kasan-gce-smack-root 2019/02/22 12:39 upstream 8a61716ff2ab 6a5fcca4 .config log report
ci-upstream-kasan-gce-root 2019/02/21 09:56 upstream f6163d67cc31 3133098b .config log report
ci-upstream-kasan-gce-root 2019/02/20 19:45 upstream 2137397c92ae c95f0707 .config log report
ci-upstream-kasan-gce-root 2019/02/18 01:42 upstream 8d33316d5205 3e98cc30 .config log report
ci-upstream-kasan-gce-root 2019/02/17 13:52 upstream 64c0133eb88a f42dee6d .config log report
ci-upstream-kasan-gce-root 2019/02/08 12:51 upstream 74e96711e337 aa4feb03 .config log report
ci-upstream-kasan-gce-root 2019/02/06 11:13 upstream 8834f5600cf3 d672172c .config log report
ci-upstream-kasan-gce-root 2019/02/06 07:52 upstream 8834f5600cf3 d672172c .config log report
ci-upstream-kasan-gce-root 2019/02/05 17:06 upstream 8834f5600cf3 d672172c .config log report
ci-upstream-kasan-gce-root 2019/02/05 15:52 upstream 8834f5600cf3 d672172c .config log report
ci-upstream-kasan-gce-root 2019/02/04 05:15 upstream 24b888d8d598 c198d5dd .config log report
ci-upstream-kasan-gce-selinux-root 2019/01/22 21:21 upstream 787a3b432276 b1ff06b2 .config log report
ci-upstream-kasan-gce-root 2018/11/04 06:32 upstream 83650fd58a93 8bd6bd63 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/28 03:32 linux-next a392ee45bae7 f94f56fe .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/19 00:07 linux-next b99981945914 46264c32 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/17 11:28 linux-next cf08baa29613 ba18afea .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/17 08:25 linux-next cf08baa29613 bab43553 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/12 14:02 linux-next cf08baa29613 a71bfb62 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/10 22:10 linux-next cf08baa29613 12365b99 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/09 22:36 linux-next cf08baa29613 12365b99 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/09 02:37 linux-next cf08baa29613 12365b99 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/06 09:12 linux-next cf08baa29613 05cf83bf .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/06 06:05 linux-next baf5a9d1f9b9 16559f86 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/04 16:28 linux-next 5d57915a1c8b 7c693b52 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/04 07:35 linux-next c63e9e91a254 7c693b52 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/03/03 17:30 linux-next c63e9e91a254 1c0e457a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/24 15:44 linux-next 94a47529a645 7a06e792 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/24 14:43 linux-next 94a47529a645 7a06e792 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/23 08:47 linux-next 94a47529a645 18107ce0 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/22 08:47 linux-next 94a47529a645 7ff74a98 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/21 08:55 linux-next 550f4769c7c4 3133098b .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/21 07:20 linux-next abf446c90405 c95f0707 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/16 17:40 linux-next 7a92eb7cc1dc f42dee6d .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/12 23:26 linux-next b5829453d81a 6ecc6d0f .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/11 07:44 linux-next a46228f6598a b4f792e4 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/08 11:25 linux-next a46228f6598a aa4feb03 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/08 01:32 linux-next 1bd831d68d55 aa4feb03 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/04 11:54 linux-next dc4c89997735 d672172c .config log report
ci-upstream-linux-next-kasan-gce-root 2019/02/04 04:12 linux-next dc4c89997735 c198d5dd .config log report