jfs_dirty_inode called on read-only volume
Is remount racy?
jfs_dirty_inode called on read-only volume
Is remount racy?
jfs_dirty_inode called on read-only volume
Is remount racy?
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000103: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000818-0x000000000000081f]
CPU: 0 UID: 0 PID: 7261 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:JFS_SBI fs/jfs/jfs_incore.h:217 [inline]
RIP: 0010:txEnd+0xb4/0x530 fs/jfs/jfs_txnmgr.c:508
Code: 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 9c aa cf fe 41 bf 18 08 00 00 4c 03 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 7d aa cf fe 49 8b 1f 48 83 c3 30
RSP: 0000:ffffc900053a7be0 EFLAGS: 00010206
RAX: 0000000000000103 RBX: ffffc900030c1020 RCX: 0000000000000046
RDX: 0000000000000008 RSI: ffffffff8daf4c16 RDI: ffff888020791f00
RBP: ffffc900053a7d58 R08: ffffffff8faf9337 R09: 1ffffffff1f5f266
R10: dffffc0000000000 R11: fffffbfff1f5f267 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc900030c1000 R15: 0000000000000818
FS:  00005555912fe500(0000) GS:ffff888125c3a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ed8e56000 CR3: 0000000035342000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 jfs_unlink+0x555/0x9e0 fs/jfs/namei.c:559
 vfs_unlink+0x27b/0x6e0 fs/namei.c:5515
 filename_unlinkat+0x3d3/0x610 fs/namei.c:5585
 __do_sys_unlink fs/namei.c:5620 [inline]
 __se_sys_unlink+0x2e/0x140 fs/namei.c:5617
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9ccc45d1c7
Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe4194f2f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ccc45d1c7
RDX: 00007ffe4194f320 RSI: 00007ffe4194f3b0 RDI: 00007ffe4194f3b0
RBP: 00007ffe4194f3b0 R08: 00007ffe419503b0 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe419504a0
R13: 00007f9ccc4f4474 R14: 000000000004511b R15: 00007ffe41951570
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:JFS_SBI fs/jfs/jfs_incore.h:217 [inline]
RIP: 0010:txEnd+0xb4/0x530 fs/jfs/jfs_txnmgr.c:508
Code: 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 9c aa cf fe 41 bf 18 08 00 00 4c 03 3b 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 7d aa cf fe 49 8b 1f 48 83 c3 30
RSP: 0000:ffffc900053a7be0 EFLAGS: 00010206
RAX: 0000000000000103 RBX: ffffc900030c1020 RCX: 0000000000000046
RDX: 0000000000000008 RSI: ffffffff8daf4c16 RDI: ffff888020791f00
RBP: ffffc900053a7d58 R08: ffffffff8faf9337 R09: 1ffffffff1f5f266
R10: dffffc0000000000 R11: fffffbfff1f5f267 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc900030c1000 R15: 0000000000000818
FS:  00005555912fe500(0000) GS:ffff888125c3a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ed8e56000 CR3: 0000000035342000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	49 8d 5e 20          	lea    0x20(%r14),%rbx
   4:	48 89 d8             	mov    %rbx,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  10:	74 08                	je     0x1a
  12:	48 89 df             	mov    %rbx,%rdi
  15:	e8 9c aa cf fe       	call   0xfecfaab6
  1a:	41 bf 18 08 00 00    	mov    $0x818,%r15d
  20:	4c 03 3b             	add    (%rbx),%r15
  23:	4c 89 f8             	mov    %r15,%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:	4c 89 ff             	mov    %r15,%rdi
  34:	e8 7d aa cf fe       	call   0xfecfaab6
  39:	49 8b 1f             	mov    (%r15),%rbx
  3c:	48 83 c3 30          	add    $0x30,%rbx