EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000. ------------[ cut here ]------------ WARNING: CPU: 1 PID: 31466 at fs/mbcache.c:419 mb_cache_destroy+0x295/0x360 fs/mbcache.c:419 Modules linked in: CPU: 1 PID: 31466 Comm: syz-executor.3 Not tainted 6.9.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:mb_cache_destroy+0x295/0x360 fs/mbcache.c:419 Code: 0f 85 c6 00 00 00 49 8b 3f e8 f7 cf c5 ff 4c 89 ff 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f e9 e1 cf c5 ff e8 6c f2 74 ff 90 <0f> 0b 90 e9 5c ff ff ff 48 89 df e8 0b 41 d0 ff e9 d8 fe ff ff 4c RSP: 0018:ffffc9000347fbc8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88807596a528 RCX: ffffffff8218d9b0 RDX: ffff888063ab3c00 RSI: ffffffff8218da54 RDI: 0000000000000005 RBP: 0000000000000002 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000002 R11: 0000000000000001 R12: ffff88807596a548 R13: dffffc0000000000 R14: ffff88805726ea58 R15: ffff88805726ea00 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5368bff000 CR3: 000000002da72000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_xattr_destroy_cache+0x1f/0x30 fs/ext4/xattr.c:3222 ext4_put_super+0x627/0xdd0 fs/ext4/super.c:1375 generic_shutdown_super+0x159/0x3d0 fs/super.c:641 kill_block_super+0x3b/0x90 fs/super.c:1675 ext4_kill_sb+0x6a/0xb0 fs/ext4/super.c:7327 deactivate_locked_super+0xbe/0x1a0 fs/super.c:472 deactivate_super+0xde/0x100 fs/super.c:505 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa7d/0x2c10 kernel/exit.c:878 do_group_exit+0xd3/0x2a0 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+0x3e/0x50 kernel/exit.c:1036 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f296ea7dd69 Code: Unable to access opcode bytes at 0x7f296ea7dd3f. RSP: 002b:00007ffe8df88c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007f296eac93ba RCX: 00007f296ea7dd69 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000027 R08: 00007ffe8df86a26 R09: 00007ffe8df89f40 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe8df89f40 R13: 00007f296eac9336 R14: 00005555776c0430 R15: 0000000000000019