EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 15463 at fs/mbcache.c:419 mb_cache_destroy+0x220/0x2c8 fs/mbcache.c:424
Modules linked in:
CPU: 0 PID: 15463 Comm: syz-executor.0 Not tainted 6.9.0-rc6-syzkaller-00053-g0106679839f7 #0
Hardware name: linux,dummy-virt (DT)
pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mb_cache_destroy+0x220/0x2c8 fs/mbcache.c:419
lr : instrument_atomic_read include/linux/instrumented.h:68 [inline]
lr : atomic_read include/linux/atomic/atomic-instrumented.h:32 [inline]
lr : mb_cache_destroy+0x128/0x2c8 fs/mbcache.c:419
sp : ffff80008cab7950
x29: ffff80008cab7950 x28: 1fffe00002f85237 x27: dead000000000100
x26: dead000000000122 x25: ffff000010772e58 x24: 0000000000000001
x23: ffff000010772e00 x22: ffff000010772e58 x21: dfff800000000000
x20: ffff000017c291d8 x19: ffff000017c291b8 x18: ffff000013bec670
x17: ffff00001d34a060 x16: 0000000000000006 x15: 1fffe0000277d8cd
x14: 1fffe0000277d8d7 x13: 0000000000000000 x12: ffff600002f8523c
x11: 1fffe00002f8523b x10: ffff600002f8523b x9 : dfff800000000000
x8 : ffff000017c291db x7 : 0000000000000001 x6 : ffff600002f8523b
x5 : ffff000017c291d8 x4 : ffff600002f8523c x3 : ffff800080b15434
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000002
Call trace:
 mb_cache_destroy+0x220/0x2c8 fs/mbcache.c:424
 ext4_xattr_destroy_cache+0x14/0x24 fs/ext4/xattr.c:3222
 ext4_put_super+0x43c/0x970 fs/ext4/super.c:1375
 generic_shutdown_super+0x108/0x2e4 fs/super.c:641
 kill_block_super+0x38/0x84 fs/super.c:1675
 ext4_kill_sb+0x58/0x9c fs/ext4/super.c:7327
 deactivate_locked_super+0x98/0x17c fs/super.c:472
 deactivate_super fs/super.c:505 [inline]
 deactivate_super+0xb0/0xd4 fs/super.c:501
 cleanup_mnt+0x174/0x324 fs/namespace.c:1267
 __cleanup_mnt+0x14/0x20 fs/namespace.c:1274
 task_work_run+0x124/0x20c kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x754/0x202c kernel/exit.c:878
 do_group_exit+0xa4/0x208 kernel/exit.c:1027
 __do_sys_exit_group kernel/exit.c:1038 [inline]
 __se_sys_exit_group kernel/exit.c:1036 [inline]
 __arm64_sys_exit_group+0x3c/0x44 kernel/exit.c:1036
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x6c/0x25c arch/arm64/kernel/syscall.c:48
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:133
 do_el0_svc_compat+0x40/0x64 arch/arm64/kernel/syscall.c:158
 el0_svc_compat+0x4c/0x17c arch/arm64/kernel/entry-common.c:852
 el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:862
 el0t_32_sync+0x194/0x198 arch/arm64/kernel/entry.S:603
irq event stamp: 1197586
hardirqs last  enabled at (1197585): [<ffff800080361c88>] __call_rcu_common.constprop.0+0x294/0x878 kernel/rcu/tree.c:2756
hardirqs last disabled at (1197586): [<ffff800084e692c0>] el1_dbg+0x24/0x9c arch/arm64/kernel/entry-common.c:470
softirqs last  enabled at (1197254): [<ffff800080011034>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (1197254): [<ffff800080011034>] __do_softirq+0x8d4/0xde8 kernel/softirq.c:583
softirqs last disabled at (1197247): [<ffff80008001972c>] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:81
---[ end trace 0000000000000000 ]---