syzbot


INFO: trying to register non-static key in ocfs2_dlm_shutdown

Status: upstream: reported on 2024/10/12 01:18
Reported-by: syzbot+cf10996a1bb1b4cbfa63@syzkaller.appspotmail.com
First crash: 31d, last: 1d10h
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: trying to register non-static key in ocfs2_dlm_shutdown origin:upstream C 31 3d18h 59d 0/3 upstream: reported C repro on 2024/09/14 00:27
upstream INFO: trying to register non-static key in ocfs2_dlm_shutdown ocfs2 C done 162 1h04m 56d 0/28 upstream: reported C repro on 2024/09/17 13:24

Sample crash report:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 1 PID: 12829 Comm: syz-executor Not tainted 6.1.115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 assign_lock_key+0x230/0x260 kernel/locking/lockdep.c:974
 register_lock_class+0x28a/0x990 kernel/locking/lockdep.c:1287
 __lock_acquire+0xd3/0x1f80 kernel/locking/lockdep.c:4928
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
 ocfs2_mark_lockres_freeing+0x15a/0x690 fs/ocfs2/dlmglue.c:3514
 ocfs2_simple_drop_lockres fs/ocfs2/dlmglue.c:3570 [inline]
 ocfs2_drop_osb_locks fs/ocfs2/dlmglue.c:3578 [inline]
 ocfs2_dlm_shutdown+0x36/0x230 fs/ocfs2/dlmglue.c:3388
 ocfs2_dismount_volume+0x490/0x960 fs/ocfs2/super.c:1920
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0cbb77fa47
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda4dcd888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f0cbb7f123c RCX: 00007f0cbb77fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda4dcd940
RBP: 00007ffda4dcd940 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda4dce9c0
R13: 00007f0cbb7f123c R14: 0000000000116e2a R15: 00007ffda4dcea00
 </TASK>
ocfs2: Unmounting device (7,7) on (node local)
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 12829 Comm: syz-executor Not tainted 6.1.115-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:ocfs2_clear_inode fs/ocfs2/inode.c:1208 [inline]
RIP: 0010:ocfs2_evict_inode+0x32e1/0x4c30 fs/ocfs2/inode.c:1220
Code: 24 98 00 00 00 74 08 4c 89 f7 e8 ca 37 80 fe 48 b9 00 00 00 00 00 fc ff df 48 01 cb 4d 8b 36 49 83 c6 08 4c 89 f0 48 c1 e8 03 <80> 3c 08 00 74 08 4c 89 f7 e8 a1 37 80 fe 49 8b 3e 48 8b 34 24 48
RSP: 0018:ffffc900043ff300 EFLAGS: 00010202
RAX: 0000000000000001 RBX: fffff5200087fe74 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900043ffa50 R08: ffffffff8361ddbe R09: ffffed100bbdf617
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805defb220
R13: 1ffff1100bbdf644 R14: 0000000000000008 R15: ffff88805defaac0
FS:  00005555590dd500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe707d7b000 CR3: 0000000059006000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 evict+0x529/0x930 fs/inode.c:701
 __ocfs2_free_slot_info fs/ocfs2/slot_map.c:307 [inline]
 ocfs2_free_slot_info+0x90/0x260 fs/ocfs2/slot_map.c:443
 ocfs2_delete_osb+0x58/0x180 fs/ocfs2/super.c:2499
 ocfs2_dismount_volume+0x59d/0x960 fs/ocfs2/super.c:1938
 generic_shutdown_super+0x130/0x340 fs/super.c:501
 kill_block_super+0x7a/0xe0 fs/super.c:1470
 deactivate_locked_super+0xa0/0x110 fs/super.c:332
 cleanup_mnt+0x490/0x520 fs/namespace.c:1186
 task_work_run+0x246/0x300 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0cbb77fa47
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffda4dcd888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f0cbb7f123c RCX: 00007f0cbb77fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffda4dcd940
RBP: 00007ffda4dcd940 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffda4dce9c0
R13: 00007f0cbb7f123c R14: 0000000000116e2a R15: 00007ffda4dcea00
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_clear_inode fs/ocfs2/inode.c:1208 [inline]
RIP: 0010:ocfs2_evict_inode+0x32e1/0x4c30 fs/ocfs2/inode.c:1220
Code: 24 98 00 00 00 74 08 4c 89 f7 e8 ca 37 80 fe 48 b9 00 00 00 00 00 fc ff df 48 01 cb 4d 8b 36 49 83 c6 08 4c 89 f0 48 c1 e8 03 <80> 3c 08 00 74 08 4c 89 f7 e8 a1 37 80 fe 49 8b 3e 48 8b 34 24 48
RSP: 0018:ffffc900043ff300 EFLAGS: 00010202
RAX: 0000000000000001 RBX: fffff5200087fe74 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900043ffa50 R08: ffffffff8361ddbe R09: ffffed100bbdf617
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805defb220
R13: 1ffff1100bbdf644 R14: 0000000000000008 R15: ffff88805defaac0
FS:  00005555590dd500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33f1fff8 CR3: 0000000059006000 CR4: 00000000003506f0
----------------
Code disassembly (best guess):
   0:	24 98                	and    $0x98,%al
   2:	00 00                	add    %al,(%rax)
   4:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
   8:	89 f7                	mov    %esi,%edi
   a:	e8 ca 37 80 fe       	call   0xfe8037d9
   f:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  16:	fc ff df
  19:	48 01 cb             	add    %rcx,%rbx
  1c:	4d 8b 36             	mov    (%r14),%r14
  1f:	49 83 c6 08          	add    $0x8,%r14
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 f7             	mov    %r14,%rdi
  33:	e8 a1 37 80 fe       	call   0xfe8037d9
  38:	49 8b 3e             	mov    (%r14),%rdi
  3b:	48 8b 34 24          	mov    (%rsp),%rsi
  3f:	48                   	rex.W

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/11/05 05:36 linux-6.1.y 7c15117f9468 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: trying to register non-static key in ocfs2_dlm_shutdown
2024/11/05 05:36 linux-6.1.y 7c15117f9468 509da429 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: trying to register non-static key in ocfs2_dlm_shutdown
2024/10/15 13:02 linux-6.1.y aa4cd140bba5 7eb57b4a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: trying to register non-static key in ocfs2_dlm_shutdown
2024/10/12 01:17 linux-6.1.y aa4cd140bba5 084d8178 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan INFO: trying to register non-static key in ocfs2_dlm_shutdown
2024/11/11 08:55 linux-6.1.y d7039b844a1c 6b856513 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 INFO: trying to register non-static key in ocfs2_dlm_shutdown
* Struck through repros no longer work on HEAD.