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WARNING in cgroup_apply_control_disable

Status: upstream: reported syz repro on 2020/05/16 16:55
Reported-by: syzbot+4fbe66f8c40f592e0d09@syzkaller.appspotmail.com
First crash: 1433d, last: 1351d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in cgroup_apply_control_disable syz error 10 780d 1454d 0/1 upstream: reported syz repro on 2020/04/25 17:18
upstream WARNING in cgroup_apply_control_disable syz done 22 1184d 1458d 0/26 closed as dup on 2021/01/21 09:28
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2022/08/28 19:27 12m retest repro linux-4.19.y error OK
2022/08/28 18:27 10m retest repro linux-4.19.y error OK
2022/08/28 17:27 10m retest repro linux-4.19.y error OK
2022/08/28 16:27 10m retest repro linux-4.19.y error OK
2022/08/28 14:27 12m retest repro linux-4.19.y error OK
2022/08/28 13:27 10m retest repro linux-4.19.y error OK
2022/08/28 11:27 10m retest repro linux-4.19.y error OK

Sample crash report:
WARNING: CPU: 1 PID: 7859 at kernel/cgroup/cgroup.c:2992 cgroup_apply_control_disable+0x424/0x500 kernel/cgroup/cgroup.c:2992
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 7859 Comm: syz-executor.4 Not tainted 4.19.137-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x61 kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:cgroup_apply_control_disable+0x424/0x500 kernel/cgroup/cgroup.c:2992
Code: 49 8d 7d 08 48 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 74 08 3c 03 0f 8e 9f 00 00 00 45 0f b7 6d 08 e9 6b fe ff ff e8 fc ff 05 00 <0f> 0b e9 af fd ff ff 48 83 c4 30 5b 5d 41 5c 41 5d 41 5e 41 5f e9
RSP: 0018:ffff88808f19f8a8 EFLAGS: 00010293
RAX: ffff88808f18c440 RBX: dffffc0000000000 RCX: ffffffff8163ad31
RDX: 0000000000000000 RSI: ffffffff8163af84 RDI: 0000000000000007
RBP: ffff88809ff06580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000008
R13: 0000000000000002 R14: ffffffff88df7980 R15: ffff8880928acdc0
 cgroup_finalize_control kernel/cgroup/cgroup.c:3059 [inline]
 rebind_subsystems+0x48a/0xbf0 kernel/cgroup/cgroup.c:1682
 cgroup_setup_root+0x499/0xb20 kernel/cgroup/cgroup.c:1953
 cgroup1_mount+0x6af/0x10a8 kernel/cgroup/cgroup-v1.c:1233
 cgroup_mount+0x17e/0xb10 kernel/cgroup/cgroup.c:2080
 mount_fs+0xa3/0x30c fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x113c/0x2f10 fs/namespace.c:2799
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45f72a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 cd 8b fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 aa 8b fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007fff90f93d48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fff90f93da0 RCX: 000000000045f72a
RDX: 00000000004cbd9e RSI: 00000000004c18a5 RDI: 00000000004c1868
RBP: 0000000000000000 R08: 00000000004d0bc8 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000418760
R13: 00007fff90f93fc8 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (7):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/08/06 07:36 linux-4.19.y c076c79e03c6 0487ea6f .config console log report syz ci2-linux-4-19
2020/07/27 01:21 linux-4.19.y 20b3a3dfdf6c 51265195 .config console log report syz ci2-linux-4-19
2020/07/05 07:38 linux-4.19.y 399849e4654e 24d7f505 .config console log report syz ci2-linux-4-19
2020/06/17 18:19 linux-4.19.y 3fc898571b97 b6c46f43 .config console log report syz ci2-linux-4-19
2020/05/30 06:10 linux-4.19.y 2d16cf4817bc 954bd312 .config console log report syz ci2-linux-4-19
2020/05/27 00:44 linux-4.19.y 1bab61d3e8cd 9072c126 .config console log report syz ci2-linux-4-19
2020/05/16 16:55 linux-4.19.y 258f0cf7ac3b 37bccd4e .config console log report syz ci2-linux-4-19
* Struck through repros no longer work on HEAD.