tblock:ffffc900027113f0: ffffffff ffffffff 9a4c2740 ffffffff tblock:ffffc90002711400: 00000000 00000000 00000000 00000000 tblock:ffffc90002711410: 8c427140 ffffffff 00000300 00000000 tblock:ffffc90002711420: 02711420 ffffc900 02711420 ffffc900 tblock:ffffc90002711430: 7774cdf0 ffff8880 00000000 00000000 VFS: Busy inodes after unmount of loop3 (jfs) ------------[ cut here ]------------ kernel BUG at fs/super.c:652! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 5849 Comm: syz-executor249 Not tainted 6.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 fs/super.c:650 Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c9 75 ee ff 48 8b 13 48 c7 c7 60 37 18 8c 4c 89 e6 e8 b7 26 f2 fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003e7fb80 EFLAGS: 00010246 RAX: 000000000000002d RBX: ffffffff8ed498e0 RCX: 5695f37461b0a100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100ddd38f0 R08: ffffffff817f09fc R09: 1ffff920007cff0c R10: dffffc0000000000 R11: fffff520007cff0d R12: ffff88806ee9c668 R13: dffffc0000000000 R14: ffffffff8c41f058 R15: ffff88806ee9c780 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0db0fb85d0 CR3: 00000000323b0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0xa2f/0x28e0 kernel/exit.c:938 do_group_exit+0x207/0x2c0 kernel/exit.c:1087 __do_sys_exit_group kernel/exit.c:1098 [inline] __se_sys_exit_group kernel/exit.c:1096 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0db0f29569 Code: Unable to access opcode bytes at 0x7f0db0f2953f. RSP: 002b:00007ffd7fd77988 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f0db0f29569 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f0db0fb7150 R08: ffffffffffffffb0 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000246 R12: 00007f0db0fb7150 R13: 0000000000000000 R14: 00007f0db0fb9020 R15: 00007f0db0eeb4c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:generic_shutdown_super+0x2ca/0x2d0 fs/super.c:650 Code: 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c9 75 ee ff 48 8b 13 48 c7 c7 60 37 18 8c 4c 89 e6 e8 b7 26 f2 fe 90 <0f> 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90003e7fb80 EFLAGS: 00010246 RAX: 000000000000002d RBX: ffffffff8ed498e0 RCX: 5695f37461b0a100 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100ddd38f0 R08: ffffffff817f09fc R09: 1ffff920007cff0c R10: dffffc0000000000 R11: fffff520007cff0d R12: ffff88806ee9c668 R13: dffffc0000000000 R14: ffffffff8c41f058 R15: ffff88806ee9c780 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0db0fb85d0 CR3: 00000000323b0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400