find_entry called with index = 0
find_entry called with index = 0
find_entry called with index = 0
jfs_dirty_inode called on read-only volume
Is remount racy?
Oops: general protection fault, probably for non-canonical address 0xdffffc00000000c5: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000628-0x000000000000062f]
CPU: 0 UID: 0 PID: 7901 Comm: syz.7.436 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:txEnd+0xb4/0x530
Code: 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 ac a8 ce fe 41 bf 28 06 00 00 4c 03 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 8d a8 ce fe 49 8b 1f 48 83 c3 30
RSP: 0018:ffffc90007a6fac0 EFLAGS: 00010206
RAX: 00000000000000c5 RBX: ffffc90002a21020 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8dfa6938 RDI: 00000000ffffffff
RBP: ffffc90007a6fd60 R08: ffffffff9030b7f7 R09: 1ffffffff20616fe
R10: dffffc0000000000 R11: fffffbfff20616ff R12: 00000000ffffffe2
R13: dffffc0000000000 R14: ffffc90002a21000 R15: 0000000000000628
FS:  00007f0e6e4566c0(0000) GS:ffff88818dc8c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb9acd4da08 CR3: 000000010bd90000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 jfs_mkdir+0x37e/0xb00
 vfs_mkdir+0x413/0x630
 filename_mkdirat+0x285/0x510
 __se_sys_mkdirat+0x35/0x150
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e6d59cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0e6e456028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f0e6d816090 RCX: 00007f0e6d59cdd9
RDX: 0000000000000000 RSI: 0000200000000200 RDI: ffffffffffffff9c
RBP: 00007f0e6d632d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0e6d816128 R14: 00007f0e6d816090 R15: 00007ffe838eecf8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:txEnd+0xb4/0x530
Code: 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 ac a8 ce fe 41 bf 28 06 00 00 4c 03 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 8d a8 ce fe 49 8b 1f 48 83 c3 30
RSP: 0018:ffffc90007a6fac0 EFLAGS: 00010206
RAX: 00000000000000c5 RBX: ffffc90002a21020 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8dfa6938 RDI: 00000000ffffffff
RBP: ffffc90007a6fd60 R08: ffffffff9030b7f7 R09: 1ffffffff20616fe
R10: dffffc0000000000 R11: fffffbfff20616ff R12: 00000000ffffffe2
R13: dffffc0000000000 R14: ffffc90002a21000 R15: 0000000000000628
FS:  00007f0e6e4566c0(0000) GS:ffff88818dc8c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb9acd4da08 CR3: 000000010bd90000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
