tblock:ffffc900026c1400: 00000000 00000000 00000000 00000000 tblock:ffffc900026c1410: 8ba2bb40 ffffffff 00000200 00000000 tblock:ffffc900026c1420: 026c1420 ffffc900 026c1420 ffffc900 tblock:ffffc900026c1430: 64c7d770 ffff8880 00000000 00000000 VFS: Busy inodes after unmount of loop0 (jfs) ------------[ cut here ]------------ kernel BUG at fs/super.c:651! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 5421 Comm: syz-executor.0 Not tainted 6.9.0-rc5-syzkaller-00159-gc942a0cd3603 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:generic_shutdown_super+0x2c2/0x2d0 fs/super.c:649 Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a0 9b ee ff 48 8b 13 48 c7 c7 c0 3c 78 8b 4c 89 e6 e8 1e 1e 17 09 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90004ac7b98 EFLAGS: 00010246 RAX: 000000000000002d RBX: ffffffff8e1319e0 RCX: e4988a0b33c3ee00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110045f18f1 R08: ffffffff81765f5c R09: 1ffff92000958f14 R10: dffffc0000000000 R11: fffff52000958f15 R12: ffff888022f8c668 R13: dffffc0000000000 R14: ffffffff8ba234f8 R15: ffff888022f8c788 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f73d651f000 CR3: 0000000020592000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kill_block_super+0x40/0x90 fs/super.c:1675 deactivate_locked_super+0xc0/0x120 fs/super.c:472 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24b/0x310 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa17/0x27c0 kernel/exit.c:878 do_group_exit+0x203/0x2b0 kernel/exit.c:1027 __do_sys_exit_group kernel/exit.c:1038 [inline] __se_sys_exit_group kernel/exit.c:1036 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1036 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x84/0x190 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f713127dea9 Code: Unable to access opcode bytes at 0x7f713127de7f. RSP: 002b:00007ffe89f01c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f71312c93de RCX: 00007f713127dea9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000002 R08: 00007ffe89effa17 R09: 00007ffe89f02f30 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe89f02f30 R13: 00007f71312c93b9 R14: 0000000000016a87 R15: 0000000000000002 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2c2/0x2d0 fs/super.c:649 Code: 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a0 9b ee ff 48 8b 13 48 c7 c7 c0 3c 78 8b 4c 89 e6 e8 1e 1e 17 09 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90004ac7b98 EFLAGS: 00010246 RAX: 000000000000002d RBX: ffffffff8e1319e0 RCX: e4988a0b33c3ee00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110045f18f1 R08: ffffffff81765f5c R09: 1ffff92000958f14 R10: dffffc0000000000 R11: fffff52000958f15 R12: ffff888022f8c668 R13: dffffc0000000000 R14: ffffffff8ba234f8 R15: ffff888022f8c788 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f03464e93b0 CR3: 000000001dcea000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400