general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
CPU: 0 PID: 4999 Comm: syz.1.195 Not tainted 5.15.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lmWriteRecord+0x75/0x12e0 fs/jfs/jfs_logmgr.c:368
Code: 89 84 24 80 00 00 00 42 80 3c 28 00 74 08 48 89 df e8 1f f5 da fe 48 89 5c 24 60 4c 8b 23 49 8d 5c 24 38 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 fc f4 da fe 4c 8b 3b 48 8b 44 24
RSP: 0018:ffffc900033f7540 EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000038 RCX: 0000000000080000
RDX: ffffc9000e8aa000 RSI: 0000000000004dfe RDI: 0000000000004dff
RBP: ffff8880625ef8b8 R08: ffffffff82ef6d9b R09: fffff5200067ee85
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8880625ef800 R15: ffffc90002b12048
FS:  00007f4bb831e6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4bb831df98 CR3: 0000000060f08000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lmLog+0x792/0xab0 fs/jfs/jfs_logmgr.c:314
 dtLog fs/jfs/jfs_txnmgr.c:1652 [inline]
 txLog fs/jfs/jfs_txnmgr.c:1400 [inline]
 txCommit+0x236b/0x6ba0 fs/jfs/jfs_txnmgr.c:1264
 add_missing_indices+0x8af/0xbf0 fs/jfs/jfs_dtree.c:2959
 jfs_readdir+0x2008/0x3bc0 fs/jfs/jfs_dtree.c:3315
 iterate_dir+0x224/0x570
 __do_sys_getdents fs/readdir.c:286 [inline]
 __se_sys_getdents+0x1e8/0x4c0 fs/readdir.c:271
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f4bba4ced29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4bb831e038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f4bba6bf080 RCX: 00007f4bba4ced29
RDX: 0000000000000073 RSI: 0000000020000780 RDI: 0000000000000004
RBP: 00007f4bba54ab08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4bba6bf080 R15: 00007fff6a8c98a8
 </TASK>
Modules linked in:
---[ end trace 4cd1ed2962fbfa7a ]---
RIP: 0010:lmWriteRecord+0x75/0x12e0 fs/jfs/jfs_logmgr.c:368
Code: 89 84 24 80 00 00 00 42 80 3c 28 00 74 08 48 89 df e8 1f f5 da fe 48 89 5c 24 60 4c 8b 23 49 8d 5c 24 38 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 fc f4 da fe 4c 8b 3b 48 8b 44 24
RSP: 0018:ffffc900033f7540 EFLAGS: 00010202
RAX: 0000000000000007 RBX: 0000000000000038 RCX: 0000000000080000
RDX: ffffc9000e8aa000 RSI: 0000000000004dfe RDI: 0000000000004dff
RBP: ffff8880625ef8b8 R08: ffffffff82ef6d9b R09: fffff5200067ee85
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8880625ef800 R15: ffffc90002b12048
FS:  00007f4bb831e6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff170255000 CR3: 0000000060f08000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	89 84 24 80 00 00 00 	mov    %eax,0x80(%rsp)
   7:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
   c:	74 08                	je     0x16
   e:	48 89 df             	mov    %rbx,%rdi
  11:	e8 1f f5 da fe       	call   0xfedaf535
  16:	48 89 5c 24 60       	mov    %rbx,0x60(%rsp)
  1b:	4c 8b 23             	mov    (%rbx),%r12
  1e:	49 8d 5c 24 38       	lea    0x38(%r12),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 fc f4 da fe       	call   0xfedaf535
  39:	4c 8b 3b             	mov    (%rbx),%r15
  3c:	48                   	rex.W
  3d:	8b                   	.byte 0x8b
  3e:	44                   	rex.R
  3f:	24                   	.byte 0x24