syzbot

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kernel BUG at fs/jfs/inode.c:175!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 4295 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:jfs_evict_inode+0x42d/0x430 fs/jfs/inode.c:175
Code: f2 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 bd a2 f2 fe e9 16 fe ff ff e8 63 97 ad 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:ffffc9000315fb40 EFLAGS: 00010293
RAX: ffffffff82cb89ad RBX: ffff888060f3bbb0 RCX: ffff88802bf83b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888060f3bbb0
RBP: 0000000000000001 R08: ffffffff901d41ff R09: 1ffffffff203a83f
R10: dffffc0000000000 R11: fffffbfff203a840 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888060f3b838 R15: ffff888060f3bbd8
FS:  00005555876cb500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555876e6a28 CR3: 000000005b1dc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 evict+0x4c9/0x8d0 fs/inode.c:647
 dispose_list fs/inode.c:680 [inline]
 evict_inodes+0x60c/0x6a0 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+0x42d/0x4e0 fs/namespace.c:1148
 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: 0033:0x7f05ba340a57
Code: a2 c7 05 9c fc 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffccd871f68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f05ba3d5048 RCX: 00007f05ba340a57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffccd872020
RBP: 00007ffccd872020 R08: 00007ffccd873020 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffccd8730b0
R13: 00007f05ba3d5048 R14: 0000000000013c5a R15: 00007ffccd8730f0
 </TASK>
Modules linked in:
---[ end trace e371055031843e99 ]---
RIP: 0010:jfs_evict_inode+0x42d/0x430 fs/jfs/inode.c:175
Code: f2 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 bd a2 f2 fe e9 16 fe ff ff e8 63 97 ad 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:ffffc9000315fb40 EFLAGS: 00010293
RAX: ffffffff82cb89ad RBX: ffff888060f3bbb0 RCX: ffff88802bf83b80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888060f3bbb0
RBP: 0000000000000001 R08: ffffffff901d41ff R09: 1ffffffff203a83f
R10: dffffc0000000000 R11: fffffbfff203a840 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888060f3b838 R15: ffff888060f3bbd8
FS:  00005555876cb500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000080a159d6000 CR3: 000000005b1dc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400