syzbot

 sign-in | mailing list | source | docs
🐞 Open [717]
🐞 Fixed [181]
🐞 Invalid [640]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

WARNING in cgroup_apply_control_disable

Status: upstream: reported syz repro on 2020/04/25 17:18
Reported-by: syzbot+3642a97e608b3a7a509a@syzkaller.appspotmail.com
First crash: 2145d, last: 1471d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in cgroup_apply_control_disable -1 syz error 7 2043d 2124d 0/1 upstream: reported syz repro on 2020/05/16 16:55
upstream WARNING in cgroup_apply_control_disable -1 syz done 22 1876d 2150d 0/29 closed as dup on 2021/01/21 09:28
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2023/02/15 04:32 11m retest repro linux-4.14.y report log
2023/02/15 00:32 15m retest repro linux-4.14.y report log
2023/02/14 23:32 13m retest repro linux-4.14.y report log
2023/02/14 22:32 9m retest repro linux-4.14.y report log
2023/02/14 21:32 12m retest repro linux-4.14.y report log
2023/02/14 20:32 13m retest repro linux-4.14.y report log
2023/02/14 19:32 12m retest repro linux-4.14.y report log
2023/02/14 18:32 14m retest repro linux-4.14.y report log
2023/02/14 13:32 11m retest repro linux-4.14.y report log
2023/02/14 12:32 10m retest repro linux-4.14.y report log
▶ ▼ Fix bisection attempts (20)
Created Duration User Patch Repo Result
2022/03/30 15:12 15m bisect fix linux-4.14.y error job log
2022/02/28 11:47 31m bisect fix linux-4.14.y OK (0) job log log
2022/01/29 11:13 34m bisect fix linux-4.14.y OK (0) job log log
2021/12/30 10:37 35m bisect fix linux-4.14.y OK (0) job log log
2021/11/30 10:00 33m bisect fix linux-4.14.y OK (0) job log log
2021/10/31 09:32 27m bisect fix linux-4.14.y OK (0) job log log
2021/09/23 10:27 29m bisect fix linux-4.14.y OK (0) job log log
2021/08/24 09:41 29m bisect fix linux-4.14.y OK (0) job log log
2021/07/25 04:57 28m bisect fix linux-4.14.y OK (0) job log log
2021/06/25 03:13 28m bisect fix linux-4.14.y OK (0) job log log
2021/05/26 02:44 29m bisect fix linux-4.14.y OK (0) job log log
2021/04/26 01:59 44m bisect fix linux-4.14.y OK (0) job log log
2021/03/26 20:30 26m bisect fix linux-4.14.y OK (0) job log log
2021/02/24 15:04 34m bisect fix linux-4.14.y OK (0) job log log
2021/02/01 02:01 1m bisect fix linux-4.14.y error job log
2021/01/02 00:58 33m bisect fix linux-4.14.y OK (0) job log log
2020/12/02 23:08 38m bisect fix linux-4.14.y OK (0) job log log
2020/11/02 22:32 36m bisect fix linux-4.14.y OK (0) job log log
2020/10/03 21:45 37m bisect fix linux-4.14.y OK (0) job log log
2020/09/03 18:49 40m bisect fix linux-4.14.y OK (0) job log log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7863 at kernel/cgroup/cgroup.c:2936 cgroup_apply_control_disable+0x3bd/0x490 kernel/cgroup/cgroup.c:2936
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 7863 Comm: syz-executor.3 Not tainted 4.14.191-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x20/0x4b kernel/panic.c:547
 report_bug+0x208/0x249 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964
RIP: 0010:cgroup_apply_control_disable+0x3bd/0x490 kernel/cgroup/cgroup.c:2936
RSP: 0018:ffff88808455f978 EFLAGS: 00010297
RAX: ffff8880882d2640 RBX: dffffc0000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffff888089ed4418
RBP: ffff888089ed4400 R08: ffffffff8a07de60 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff87da3e60
R13: ffffffff87ddbb00 R14: ffff88808ce9a000 R15: ffff88821b7047c0
 cgroup_finalize_control kernel/cgroup/cgroup.c:3003 [inline]
 rebind_subsystems+0x40a/0xb00 kernel/cgroup/cgroup.c:1631
 cgroup_setup_root+0x3ab/0x950 kernel/cgroup/cgroup.c:1900
 cgroup1_mount+0x568/0xcfa kernel/cgroup/cgroup-v1.c:1245
 cgroup_mount+0x152/0x970 kernel/cgroup/cgroup.c:2024
 mount_fs+0x92/0x2a0 fs/super.c:1237
 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
 vfs_kern_mount fs/namespace.c:1036 [inline]
 do_new_mount fs/namespace.c:2549 [inline]
 do_mount+0xe53/0x2a00 fs/namespace.c:2879
 SYSC_mount fs/namespace.c:3095 [inline]
 SyS_mount+0xa8/0x120 fs/namespace.c:3072
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45f73a
RSP: 002b:00007ffe3bbc52c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffe3bbc5320 RCX: 000000000045f73a
RDX: 00000000004cbdbe RSI: 00000000004c18c5 RDI: 00000000004c1888
RBP: 0000000000000000 R08: 00000000004d0bd8 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000418770
R13: 00007ffe3bbc5548 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/08/04 18:49 linux-4.14.y 7f2c5eb458b8 80a06902 .config console log report syz ci2-linux-4-14
2020/08/03 03:41 linux-4.14.y 7f2c5eb458b8 96dd3623 .config console log report syz ci2-linux-4-14
2020/08/01 03:50 linux-4.14.y 7f2c5eb458b8 8df85ed9 .config console log report syz ci2-linux-4-14
2020/07/26 22:27 linux-4.14.y 69b94dd6dcd1 51265195 .config console log report syz ci2-linux-4-14
2020/07/05 09:16 linux-4.14.y b850307b279c 24d7f505 .config console log report syz ci2-linux-4-14
2020/06/17 18:54 linux-4.14.y b850307b279c b6c46f43 .config console log report syz ci2-linux-4-14
2020/05/30 05:34 linux-4.14.y 4f68020fef1c 954bd312 .config console log report syz ci2-linux-4-14
2020/05/27 00:28 linux-4.14.y a41ba30d9df2 9072c126 .config console log report syz ci2-linux-4-14
2020/05/16 16:16 linux-4.14.y ab9dfda23248 37bccd4e .config console log report syz ci2-linux-4-14
2020/04/25 17:17 linux-4.14.y 050272a0423e a113ba38 .config console log report syz ci2-linux-4-14
* Struck through repros no longer work on HEAD.