loop0: rw=0, want=30736, limit=14901
lbmIODone: I/O error in JFS log
*** Log Format Error ! ***
lmLogInit: exit(-22)
lmLogOpen: exit(-22)
BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
PGD 1319b4067 P4D 1319b4067 PUD 131b07067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 3796 Comm: syz-executor.0 Not tainted 4.19.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:328 [inline]
RIP: 0010:txBegin+0x136/0x3a0 fs/jfs/jfs_txnmgr.c:379
Code: 48 8b 45 a0 e8 1b d1 d6 00 e8 96 a7 b8 ff 48 8d 75 a8 48 c7 c7 48 20 df 83 e8 66 2d ba ff 48 c7 c7 40 41 0d 83 e8 da ce d6 00 <49> 8b 44 24 40 a8 04 0f 85 c7 00 00 00 49 8b 44 24 40 a8 08 0f 85
RSP: 0018:ffffc900012b7b80 EFLAGS: 00010246
RAX: 0000000000000138 RBX: 0000000000000000 RCX: 301bf97800000000
RDX: 0000000000000001 RSI: 000000004a0ec13a RDI: ffffffff830d4140
RBP: ffffc900012b7c10 R08: 0000000000000000 R09: 00000000e224427e
R10: 0000000000000000 R11: ffff8801335288a0 R12: 0000000000000000
R13: ffffffff810e8e30 R14: ffffffff83df2040 R15: 0000000000000000
FS:  00007f2382a166c0(0000) GS:ffff88013bb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000040 CR3: 0000000133580000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __jfs_xattr_set+0x37/0xb0 fs/jfs/xattr.c:928
 jfs_xattr_set+0x2f/0x40 fs/jfs/xattr.c:953
 __vfs_setxattr+0x64/0x80 fs/xattr.c:149
 __vfs_setxattr_noperm+0x6d/0x1a0 fs/xattr.c:180
 vfs_setxattr+0x88/0xb0 fs/xattr.c:223
 setxattr+0x14f/0x1f0 fs/xattr.c:450
 path_setxattr+0xb8/0xd0 fs/xattr.c:469
 __do_sys_setxattr fs/xattr.c:484 [inline]
 __se_sys_setxattr fs/xattr.c:480 [inline]
 __x64_sys_setxattr+0x26/0x30 fs/xattr.c:480
 do_syscall_64+0x63/0x160 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f2382e93ae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2382a160c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f2382fb2f80 RCX: 00007f2382e93ae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000020000180
RBP: 00007f2382edf47a R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000006 R14: 00007f2382fb2f80 R15: 00007ffe651e5808
Modules linked in:
CR2: 0000000000000040
---[ end trace 309512f2197dcc1f ]---
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:328 [inline]
RIP: 0010:txBegin+0x136/0x3a0 fs/jfs/jfs_txnmgr.c:379
Code: 48 8b 45 a0 e8 1b d1 d6 00 e8 96 a7 b8 ff 48 8d 75 a8 48 c7 c7 48 20 df 83 e8 66 2d ba ff 48 c7 c7 40 41 0d 83 e8 da ce d6 00 <49> 8b 44 24 40 a8 04 0f 85 c7 00 00 00 49 8b 44 24 40 a8 08 0f 85
RSP: 0018:ffffc900012b7b80 EFLAGS: 00010246
RAX: 0000000000000138 RBX: 0000000000000000 RCX: 301bf97800000000
RDX: 0000000000000001 RSI: 000000004a0ec13a RDI: ffffffff830d4140
RBP: ffffc900012b7c10 R08: 0000000000000000 R09: 00000000e224427e
R10: 0000000000000000 R11: ffff8801335288a0 R12: 0000000000000000
R13: ffffffff810e8e30 R14: ffffffff83df2040 R15: 0000000000000000
FS:  00007f2382a166c0(0000) GS:ffff88013bb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000040 CR3: 0000000133580000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 8b 45 a0          	mov    -0x60(%rbp),%rax
   4:	e8 1b d1 d6 00       	call   0xd6d124
   9:	e8 96 a7 b8 ff       	call   0xffb8a7a4
   e:	48 8d 75 a8          	lea    -0x58(%rbp),%rsi
  12:	48 c7 c7 48 20 df 83 	mov    $0xffffffff83df2048,%rdi
  19:	e8 66 2d ba ff       	call   0xffba2d84
  1e:	48 c7 c7 40 41 0d 83 	mov    $0xffffffff830d4140,%rdi
  25:	e8 da ce d6 00       	call   0xd6cf04
* 2a:	49 8b 44 24 40       	mov    0x40(%r12),%rax <-- trapping instruction
  2f:	a8 04                	test   $0x4,%al
  31:	0f 85 c7 00 00 00    	jne    0xfe
  37:	49 8b 44 24 40       	mov    0x40(%r12),%rax
  3c:	a8 08                	test   $0x8,%al
  3e:	0f                   	.byte 0xf
  3f:	85                   	.byte 0x85