Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 118 Comm: jfsCommit Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:metapage_write_folio+0xa7/0xcf0
Code: fe 48 89 5c 24 18 4c 8d 73 18 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 03 40 d9 fe 4d 8b 36 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 ea 3f d9 fe 49 8b 1e 43 c6 44 3c
RSP: 0018:ffffc900031977c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffea000468c640 RCX: ffff888100f60000
RDX: 0000000000000000 RSI: ffffc90003197920 RDI: ffffea000468c640
RBP: ffffc900031978d0 R08: ffffea000468c677 R09: 1ffffd40008d18ce
R10: dffffc0000000000 R11: fffff940008d18cf R12: 1ffff92000632f04
R13: ffffea000468c640 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8882a9926000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff6b73d5ffc CR3: 0000000173b18000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 metapage_write_one+0x2c8/0x520
 release_metapage+0x5be/0xac0
 txUnlock+0x524/0xdf0
 jfs_lazycommit+0x582/0xaa0
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:metapage_write_folio+0xa7/0xcf0
Code: fe 48 89 5c 24 18 4c 8d 73 18 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 03 40 d9 fe 4d 8b 36 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 ea 3f d9 fe 49 8b 1e 43 c6 44 3c
RSP: 0018:ffffc900031977c0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffea000468c640 RCX: ffff888100f60000
RDX: 0000000000000000 RSI: ffffc90003197920 RDI: ffffea000468c640
RBP: ffffc900031978d0 R08: ffffea000468c677 R09: 1ffffd40008d18ce
R10: dffffc0000000000 R11: fffff940008d18cf R12: 1ffff92000632f04
R13: ffffea000468c640 R14: 0000000000000000 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8882a9926000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2c89837000 CR3: 0000000117504000 CR4: 00000000000006f0
