audit: type=1800 audit(1674387278.419:24): pid=17222 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="loop2" ino=263 res=0
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: 16338 Comm: kworker/u4:10 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: writeback wb_workfn (flush-7:4)
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:ffff88803f73f3d8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880abbc9a00 RCX: 0000000000000003
RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0
RBP: ffff88809ccd11c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809ee3adc0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b562a3ac60 CR3: 00000000b0daa000 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
 metapage_writepage+0xaf4/0xd10 fs/jfs/jfs_metapage.c:387
 __writepage+0x5e/0xe0 mm/page-writeback.c:2305
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 generic_writepages mm/page-writeback.c:2329 [inline]
 generic_writepages mm/page-writeback.c:2318 [inline]
 do_writepages+0x1dd/0x290 mm/page-writeback.c:2346
 __writeback_single_inode+0x10c/0x11d0 fs/fs-writeback.c:1385
 writeback_sb_inodes+0x537/0xef0 fs/fs-writeback.c:1647
 wb_writeback+0x28d/0xcc0 fs/fs-writeback.c:1820
 wb_do_writeback fs/fs-writeback.c:1965 [inline]
 wb_workfn+0x29b/0x1250 fs/fs-writeback.c:2006
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Modules linked in:
---[ end trace 75ccf082535c9a71 ]---
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:ffff88803f73f3d8 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880abbc9a00 RCX: 0000000000000003
RDX: 000000000000001c RSI: ffffffff835f37ea RDI: 00000000000000e0
RBP: ffff88809ccd11c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809ee3adc0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ef21000 CR3: 0000000092f2a000 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