metapage: ffff888030e80e30: 00001000 00001200 00000000 00000000
metapage: ffff888030e80e40: 6da93800 ffff8880
page: ffffea0000bf25c0: 00fff4000000422e ffffea0000c761c8
page: ffffea0000bf25d0: ffff88806f8a0240 ffff8880569e8f88
page: ffffea0000bf25e0: 000000000000001c ffff888030e80d90
page: ffffea0000bf25f0: 00000002ffffffff ffff888030e48000
Oops: general protection fault, probably for non-canonical address 0xfbd59c000000001e: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: maybe wild-memory-access in range [0xdead0000000000f0-0xdead0000000000f7]
CPU: 1 UID: 0 PID: 5841 Comm: syz-executor Not tainted 6.12.0-rc7-syzkaller-00189-ge8bdb3c8be08 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:jfs_flush_journal+0x5c7/0x940 fs/jfs/jfs_logmgr.c:1596
Code: 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 7c 02 00 00 48 8b 43 10 48 8d 58 f0 49 39 c5 74 74 e8 70 5c 7b fe 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 01 0f 8e 45 02 00 00 44 0f b7 33 31
RSP: 0018:ffffc90003a17c10 EFLAGS: 00010216
RAX: 1bd5a0000000001e RBX: dead0000000000f0 RCX: 0000000000000040
RDX: ffff8880683e0000 RSI: ffffffff83121de0 RDI: ffff888030e80da0
RBP: ffff88806da93800 R08: 0000000000000006 R09: 0000000000000040
R10: 0000000000000040 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88806da93a28 R14: 0000000000001000 R15: 1ffff1100db52745
FS:  000055559112c500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd6e370d08 CR3: 000000007ff18000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 jfs_umount+0x17a/0x440 fs/jfs/jfs_umount.c:58
 jfs_put_super+0x88/0x1d0 fs/jfs/super.c:194
 generic_shutdown_super+0x15f/0x3d0 fs/super.c:642
 kill_block_super+0x3b/0x90 fs/super.c:1710
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:473
 deactivate_super+0xde/0x100 fs/super.c:506
 cleanup_mnt+0x222/0x450 fs/namespace.c:1373
 task_work_run+0x151/0x250 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0facd7fa47
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:00007ffed8170de8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f0facd7fa47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffed8170ea0
RBP: 00007ffed8170ea0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffed8171f20
R13: 00007f0facdf15fc R14: 000000000002b2ed R15: 00007ffed8171f60
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_flush_journal+0x5c7/0x940 fs/jfs/jfs_logmgr.c:1596
Code: 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 7c 02 00 00 48 8b 43 10 48 8d 58 f0 49 39 c5 74 74 e8 70 5c 7b fe 48 89 d8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 01 0f 8e 45 02 00 00 44 0f b7 33 31
RSP: 0018:ffffc90003a17c10 EFLAGS: 00010216
RAX: 1bd5a0000000001e RBX: dead0000000000f0 RCX: 0000000000000040
RDX: ffff8880683e0000 RSI: ffffffff83121de0 RDI: ffff888030e80da0
RBP: ffff88806da93800 R08: 0000000000000006 R09: 0000000000000040
R10: 0000000000000040 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88806da93a28 R14: 0000000000001000 R15: 1ffff1100db52745
FS:  000055559112c500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30c1fffc CR3: 000000007ff18000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
   0:	89 f8                	mov    %edi,%eax
   2:	48 c1 e8 03          	shr    $0x3,%rax
   6:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
   b:	0f 85 7c 02 00 00    	jne    0x28d
  11:	48 8b 43 10          	mov    0x10(%rbx),%rax
  15:	48 8d 58 f0          	lea    -0x10(%rax),%rbx
  19:	49 39 c5             	cmp    %rax,%r13
  1c:	74 74                	je     0x92
  1e:	e8 70 5c 7b fe       	call   0xfe7b5c93
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	74 08                	je     0x3b
  33:	3c 01                	cmp    $0x1,%al
  35:	0f 8e 45 02 00 00    	jle    0x280
  3b:	44 0f b7 33          	movzwl (%rbx),%r14d
  3f:	31                   	.byte 0x31