kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 30824 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:lbmStartIO+0x12b/0x480 fs/jfs/jfs_logmgr.c:2143
Code: c1 ea 03 80 3c 02 00 0f 85 f5 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6c 24 20 49 8d bd e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ef 02 00 00 4d 8b ad e0 00 00 00 4d 39 ee 74 67
RSP: 0018:ffff88804efc7cf0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a9eb0100 RCX: 0000000000000003
RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0
RBP: ffff8880964d4bc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888096b86900
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS:  00007fee4bcaa700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555bcbe38160 CR3: 000000009ecc1000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lbmWrite+0x27b/0x3a0 fs/jfs/jfs_logmgr.c:2092
 lmGCwrite+0x3f2/0x4e0 fs/jfs/jfs_logmgr.c:806
 jfs_flush_journal.part.0+0x478/0x6a0 fs/jfs/jfs_logmgr.c:1570
 jfs_flush_journal+0x23/0x30 fs/jfs/jfs_logmgr.c:1537
 jfs_fsync+0x1c4/0x210 fs/jfs/file.c:45
 vfs_fsync_range fs/sync.c:197 [inline]
 vfs_fsync fs/sync.c:211 [inline]
 do_fsync fs/sync.c:221 [inline]
 __do_sys_fdatasync fs/sync.c:234 [inline]
 __se_sys_fdatasync fs/sync.c:232 [inline]
 __x64_sys_fdatasync+0xc5/0x140 fs/sync.c:232
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fee4d7380f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fee4bcaa168 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
RAX: ffffffffffffffda RBX: 00007fee4d857f80 RCX: 00007fee4d7380f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fee4d793ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcf57206cf R14: 00007fee4bcaa300 R15: 0000000000022000
Modules linked in:
---[ end trace 5b44a0a7875912ca ]---
RIP: 0010:lbmStartIO+0x12b/0x480 fs/jfs/jfs_logmgr.c:2143
Code: c1 ea 03 80 3c 02 00 0f 85 f5 02 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6c 24 20 49 8d bd e0 00 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ef 02 00 00 4d 8b ad e0 00 00 00 4d 39 ee 74 67
RSP: 0018:ffff88804efc7cf0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a9eb0100 RCX: 0000000000000003
RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0
RBP: ffff8880964d4bc0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888096b86900
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS:  00007fee4bcaa700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e7244d010 CR3: 000000009ecc1000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c1 ea 03             	shr    $0x3,%edx
   3:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   7:	0f 85 f5 02 00 00    	jne    0x302
   d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  14:	fc ff df
  17:	4d 8b 6c 24 20       	mov    0x20(%r12),%r13
  1c:	49 8d bd e0 00 00 00 	lea    0xe0(%r13),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 ef 02 00 00    	jne    0x323
  34:	4d 8b ad e0 00 00 00 	mov    0xe0(%r13),%r13
  3b:	4d 39 ee             	cmp    %r13,%r14
  3e:	74 67                	je     0xa7