syzbot

 sign-in | mailing list | source | docs
🐞 Open [1572]
≡ Subsystems
🐞 Fixed [5936]
🐞 Invalid [14433]
⬇ Missing Backports [102]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
Total Repo Heatmap Subsystems Heatmap
💬 Send us feedback

WARNING in cgroup_apply_control_disable

Status: closed as dup on 2021/01/21 09:28
Reported-by: syzbot+5b142e89a1b402a24801@syzkaller.appspotmail.com
First crash: 1709d, last: 1431d
Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: syz .config
  
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING in cgroup_finalize_control syz done done 9 1157d 1685d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
WARNING in cgroup_apply_control_disable 0 (1) 2020/04/21 09:36
▶ ▼ 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 1027d 1701d 0/1 upstream: reported syz repro on 2020/04/25 17:18
linux-4.19 WARNING in cgroup_apply_control_disable syz error 7 1598d 1680d 0/1 upstream: reported syz repro on 2020/05/16 16:55
▶ ▼ Fix bisection attempts (5)
Created Duration User Patch Repo Result
2021/01/20 06:35 22m bisect fix upstream OK (0) job log log
2020/12/21 05:05 22m bisect fix upstream OK (0) job log log
2020/11/13 08:36 21m bisect fix upstream OK (0) job log log
2020/10/14 02:52 29m bisect fix upstream OK (0) job log log
2020/09/09 03:27 29m bisect fix upstream OK (0) job log log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 8200 at kernel/cgroup/cgroup.c:3104 cgroup_apply_control_disable+0x42b/0x500 kernel/cgroup/cgroup.c:3104
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8200 Comm: syz-executor.1 Not tainted 5.8.0-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+0x18f/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:231
 __warn.cold+0x20/0x45 kernel/panic.c:600
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:255
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:cgroup_apply_control_disable+0x42b/0x500 kernel/cgroup/cgroup.c:3104
Code: 49 8d 7d 08 48 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 74 08 3c 03 0f 8e be 00 00 00 45 0f b7 6d 08 e9 6b fe ff ff e8 d5 c6 06 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:ffffc9000a53fb18 EFLAGS: 00010293
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff816d78d8
RDX: ffff8880911be380 RSI: ffffffff816d7b2b RDI: 0000000000000007
RBP: ffff8880a2f0d800 R08: 0000000000000001 R09: ffffffff8c5dca27
R10: 0000000000000000 R11: 0000000000056178 R12: 0000000000000008
R13: 0000000000000002 R14: ffffffff89c4e640 R15: ffff888093c02000
 cgroup_finalize_control kernel/cgroup/cgroup.c:3171 [inline]
 rebind_subsystems+0x479/0xbf0 kernel/cgroup/cgroup.c:1743
 cgroup_setup_root+0x374/0xaa0 kernel/cgroup/cgroup.c:1977
 cgroup1_root_to_use kernel/cgroup/cgroup-v1.c:1190 [inline]
 cgroup1_get_tree+0x9ee/0xe33 kernel/cgroup/cgroup-v1.c:1207
 vfs_get_tree+0x89/0x2f0 fs/super.c:1547
 do_new_mount fs/namespace.c:2875 [inline]
 do_mount+0x1592/0x1fe0 fs/namespace.c:3200
 __do_sys_mount fs/namespace.c:3410 [inline]
 __se_sys_mount fs/namespace.c:3387 [inline]
 __x64_sys_mount+0x18f/0x230 fs/namespace.c:3387
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
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:00007fffc9c30ac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fffc9c30b20 RCX: 000000000045f72a
RDX: 00000000004cbd9e RSI: 00000000004c18a5 RDI: 00000000004c1868
RBP: 0000000000000000 R08: 00000000004d0bc8 R09: 000000000000001c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000418760
R13: 00007fffc9c30d48 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (22):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/08/07 15:01 upstream d6efb3ac3e6c cb436c69 .config console log report syz ci-upstream-kasan-gce-root
2020/08/06 15:31 upstream 47ec5303d73e 1f122f88 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/08/05 18:32 upstream 442489c21923 b7129355 .config console log report syz ci-upstream-kasan-gce-root
2020/08/03 22:59 upstream bcf876870b95 196277c4 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/08/03 17:42 upstream bcf876870b95 196277c4 .config console log report syz ci-upstream-kasan-gce-root
2020/08/01 17:08 upstream 7dc6fd0f3b84 d895b3be .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/07/30 14:21 upstream d3590ebf6f91 233283a1 .config console log report syz ci-upstream-kasan-gce-root
2020/07/29 17:28 upstream 6ba1b005ffc3 19a8de55 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/07/05 22:44 upstream 7cc2a8ea1048 51095195 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/07/05 08:10 upstream 7cc2a8ea1048 51095195 .config console log report syz ci-upstream-kasan-gce-root
2020/06/02 20:08 upstream f359287765c0 52fd7b7d .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/05/27 16:07 upstream 444fc5cde643 ec153193 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/05/23 13:58 upstream 444565650a5f 9682898d .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/04/18 00:21 upstream 95988fbc7c31 435c6d53 .config console log report syz ci-upstream-kasan-gce-root
2020/04/17 09:30 upstream 7a56db0299f9 18397578 .config console log report syz ci-upstream-kasan-gce-selinux-root
2020/08/10 03:27 linux-next 01830e6c042e 70301872 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2020/08/07 15:45 linux-next 01830e6c042e cb436c69 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2020/08/01 16:01 linux-next 01830e6c042e d895b3be .config console log report syz ci-upstream-linux-next-kasan-gce-root
2020/06/02 02:27 linux-next e7b08814b16b a0331e89 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2020/05/27 06:43 linux-next b0523c7b1c9d 9072c126 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2020/05/20 04:34 linux-next ac935d227366 67fa1f59 .config console log report syz ci-upstream-linux-next-kasan-gce-root
2020/05/07 13:42 linux-next ac935d227366 98cbd87b .config console log report syz ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.