syzbot

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kernel BUG at fs/jfs/inode.c:169!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 5878 Comm: syz-executor Not tainted 6.6.95-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:jfs_evict_inode+0x431/0x440 fs/jfs/inode.c:169
Code: e4 fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 17 fe ff ff 4c 89 f7 e8 a9 02 e4 fe e9 0a fe ff ff e8 df 53 8b fe <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41
RSP: 0018:ffffc90004687ac0 EFLAGS: 00010293
RAX: ffffffff82fa4281 RBX: ffff8880728a3270 RCX: ffff888024670000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880728a3270
RBP: 0000000000000001 R08: ffffffff90d85637 R09: 1ffffffff21b0ac6
R10: dffffc0000000000 R11: fffffbfff21b0ac7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8880728a2ef8 R15: ffff8880728a3440
FS:  0000555579eaf500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe42441ba8 CR3: 00000000752ec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 evict+0x486/0x870 fs/inode.c:705
 dispose_list fs/inode.c:738 [inline]
 evict_inodes+0x5fe/0x690 fs/inode.c:792
 generic_shutdown_super+0x97/0x2b0 fs/super.c:672
 kill_block_super+0x44/0x90 fs/super.c:1660
 deactivate_locked_super+0x97/0x100 fs/super.c:481
 cleanup_mnt+0x429/0x4c0 fs/namespace.c:1250
 task_work_run+0x1ce/0x250 kernel/task_work.c:239
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0d8a78fc57
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:00007ffe42442358 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f0d8a810925 RCX: 00007f0d8a78fc57
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe42442410
RBP: 00007ffe42442410 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe424434a0
R13: 00007f0d8a810925 R14: 000000000001a235 R15: 00007ffe424434e0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jfs_evict_inode+0x431/0x440 fs/jfs/inode.c:169
Code: e4 fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 17 fe ff ff 4c 89 f7 e8 a9 02 e4 fe e9 0a fe ff ff e8 df 53 8b fe <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 57 41
RSP: 0018:ffffc90004687ac0 EFLAGS: 00010293
RAX: ffffffff82fa4281 RBX: ffff8880728a3270 RCX: ffff888024670000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880728a3270
RBP: 0000000000000001 R08: ffffffff90d85637 R09: 1ffffffff21b0ac6
R10: dffffc0000000000 R11: fffffbfff21b0ac7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8880728a2ef8 R15: ffff8880728a3440
FS:  0000555579eaf500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc4567f7000 CR3: 00000000752ec000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400