syzbot

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WARNING: CPU: 0 PID: 4217 at kernel/locking/lockdep.c:896 look_up_lock_class+0x134/0x13c
Modules linked in:
CPU: 0 PID: 4217 Comm: syz-executor121 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 204010c5 (nzCv daIF +PAN -UAO -TCO -DIT +SSBS BTYPE=--)
pc : look_up_lock_class+0x134/0x13c
lr : look_up_lock_class+0x74/0x13c
sp : ffff80001d1772e0
x29: ffff80001d1772e0 x28: dfff800000000000 x27: 0000000000000001
x26: ffff800018440d20 x25: ffff800018440000 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000000 x21: ffff80001856a6a1
x20: ffff0000df1de628 x19: ffff80001708e4c0 x18: 1ffff00003a2ee9c
x17: 0000000000000000 x16: ffff8000082ecb00 x15: 00000000c0c0583b
x14: 1ffff0000292806a x13: ffff80001d1774a0 x12: dfff800000000000
x11: ffff8000082f0050 x10: ffff80001494034c x9 : ffff800017207d00
x8 : ffff80001856a6a0 x7 : ffff800008de2224 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000001
Call trace:
 look_up_lock_class+0x134/0x13c
 register_lock_class+0x90/0x6a4 kernel/locking/lockdep.c:1245
 __lock_acquire+0x184/0x7638 kernel/locking/lockdep.c:4891
 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5623
 down_write_nested+0xc0/0x130 kernel/locking/rwsem.c:1667
 ext4_double_down_write_data_sem+0x3c/0x4c
 swap_inode_boot_loader fs/ext4/ioctl.c:176 [inline]
 __ext4_ioctl fs/ext4/ioctl.c:1056 [inline]
 ext4_ioctl+0x4224/0x61bc fs/ext4/ioctl.c:1276
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 647
hardirqs last  enabled at (647): [<ffff8000088ce628>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (646): [<ffff8000088ce5e8>] kasan_quarantine_put+0x9c/0x204 mm/kasan/quarantine.c:204
softirqs last  enabled at (626): [<ffff800008021c64>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (626): [<ffff800008021c64>] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587
softirqs last disabled at (621): [<ffff8000081b6568>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (621): [<ffff8000081b6568>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (621): [<ffff8000081b6568>] __irq_exit_rcu+0x264/0x4d4 kernel/softirq.c:637
---[ end trace 3aba8003aff38bbf ]---
loop0: detected capacity change from 0 to 2048