syzbot

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kernel BUG at fs/jfs/inode.c:169!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4284 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:jfs_evict_inode+0x42d/0x430 fs/jfs/inode.c:169
Code: f5 fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 6d c7 f5 fe e9 16 fe ff ff e8 63 5f b1 fe <0f> 0b 90 41 57 41 56 41 54 53 48 89 fb 49 bc 00 00 00 00 00 fc ff
RSP: 0018:ffffc90003cffb40 EFLAGS: 00010293
RAX: ffffffff82c66aed RBX: ffff88805a88bbb0 RCX: ffff888022403b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805a88bbb0
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1ff7a41
R10: fffffbfff1ff7a41 R11: 1ffffffff1ff7a40 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88805a88b838 R15: ffff88805a88bd80
FS:  0000555572bc4500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555572bdf5c8 CR3: 000000005c5ea000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 evict+0x485/0x870 fs/inode.c:647
 dispose_list fs/inode.c:680 [inline]
 evict_inodes+0x604/0x690 fs/inode.c:734
 generic_shutdown_super+0x93/0x300 fs/super.c:454
 kill_block_super+0x7c/0xe0 fs/super.c:1427
 deactivate_locked_super+0x93/0xf0 fs/super.c:335
 cleanup_mnt+0x418/0x4d0 fs/namespace.c:1139
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1ff2c871f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffea30c2e78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f1ff2d08d7d RCX: 00007f1ff2c871f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffea30c2f30
RBP: 00007ffea30c2f30 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffea30c3fc0
R13: 00007f1ff2d08d7d R14: 0000000000015688 R15: 00007ffea30c4000
 </TASK>
Modules linked in:
---[ end trace 7958f5075c307af2 ]---
RIP: 0010:jfs_evict_inode+0x42d/0x430 fs/jfs/inode.c:169
Code: f5 fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 23 fe ff ff 4c 89 f7 e8 6d c7 f5 fe e9 16 fe ff ff e8 63 5f b1 fe <0f> 0b 90 41 57 41 56 41 54 53 48 89 fb 49 bc 00 00 00 00 00 fc ff
RSP: 0018:ffffc90003cffb40 EFLAGS: 00010293
RAX: ffffffff82c66aed RBX: ffff88805a88bbb0 RCX: ffff888022403b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88805a88bbb0
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1ff7a41
R10: fffffbfff1ff7a41 R11: 1ffffffff1ff7a40 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88805a88b838 R15: ffff88805a88bd80
FS:  0000555572bc4500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555572bdf5c8 CR3: 000000005c5ea000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400