Oops: general protection fault, probably for non-canonical address 0xdffffc000000002f: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000178-0x000000000000017f]
CPU: 1 UID: 0 PID: 134 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:txEnd+0x1c0/0x530
Code: 43 0f b6 04 2c 84 c0 0f 85 d8 02 00 00 66 41 89 2e 0f b7 44 24 04 89 05 9e b5 3b 16 4c 8d b3 7c 01 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 cb 02 00 00 45 8b 3e 41 8d 77 ff 41 89
RSP: 0018:ffffc90003a9fcc0 EFLAGS: 00010203
RAX: 000000000000002f RBX: 0000000000000000 RCX: ffff88810a7d9d80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f1597f R12: 1ffff9200065c29b
R13: dffffc0000000000 R14: 000000000000017c R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8882a9f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000d000 CR3: 000000016c196000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 jfs_lazycommit+0x55a/0xa10
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0x1c0/0x530
Code: 43 0f b6 04 2c 84 c0 0f 85 d8 02 00 00 66 41 89 2e 0f b7 44 24 04 89 05 9e b5 3b 16 4c 8d b3 7c 01 00 00 4c 89 f0 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 cb 02 00 00 45 8b 3e 41 8d 77 ff 41 89
RSP: 0018:ffffc90003a9fcc0 EFLAGS: 00010203
RAX: 000000000000002f RBX: 0000000000000000 RCX: ffff88810a7d9d80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f1597f R12: 1ffff9200065c29b
R13: dffffc0000000000 R14: 000000000000017c R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8882a9f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000d000 CR3: 000000016c196000 CR4: 00000000000006f0
