------------[ cut here ]------------ Looking for class "&ei->i_data_sem" with key __key.0, but found a different class "&ei->i_data_sem" with the same key WARNING: CPU: 0 PID: 17183 at kernel/locking/lockdep.c:932 look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932 Modules linked in: CPU: 0 PID: 17183 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-13213-g70293240c5ce #0 Hardware name: linux,dummy-virt (DT) pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932 lr : look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932 sp : ffff80008de87590 x29: ffff80008de87590 x28: ffff00000e21da00 x27: 0000000000000001 x26: ffff8000892fb000 x25: 1ffff00011bd0ed2 x24: ffff8000892fb6c0 x23: 0000000000000000 x22: 0000000000000000 x21: ffff000017f81688 x20: ffff8000893c9441 x19: ffff800088aaca50 x18: ffff00000e21e470 x17: 20646e756f662074 x16: 7562202c302e7965 x15: 6b5f5f2079656b20 x14: 6874697720226d65 x13: 205d333831373154 x12: ffff60000d50cfc3 x11: 1fffe0000d50cfc2 x10: ffff60000d50cfc2 x9 : dfff800000000000 x8 : 00009ffff2af303e x7 : ffff00006a867e13 x6 : 0000000000000001 x5 : ffff00006a867e10 x4 : 1fffe00001c43b41 x3 : dfff800000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff00000e21da00 Call trace: look_up_lock_class+0x16c/0x178 kernel/locking/lockdep.c:932 register_lock_class+0xc4/0xe24 kernel/locking/lockdep.c:1284 __lock_acquire+0x104/0x6b7c kernel/locking/lockdep.c:5014 lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x4a8/0x7f0 kernel/locking/lockdep.c:5719 down_write_nested+0xb4/0x1a8 kernel/locking/rwsem.c:1695 ext4_double_down_write_data_sem+0x58/0x68 fs/ext4/move_extent.c:58 swap_inode_boot_loader fs/ext4/ioctl.c:432 [inline] __ext4_ioctl+0x16ac/0x3f04 fs/ext4/ioctl.c:1437 ext4_ioctl+0x10/0x1c fs/ext4/ioctl.c:1627 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl fs/ioctl.c:890 [inline] __arm64_sys_ioctl+0x124/0x190 fs/ioctl.c:890 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:48 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:133 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x50/0x180 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 1185 hardirqs last enabled at (1185): [] kasan_quarantine_put+0x1c8/0x228 mm/kasan/quarantine.c:234 hardirqs last disabled at (1184): [] kasan_quarantine_put+0xc0/0x228 mm/kasan/quarantine.c:207 softirqs last enabled at (1166): [] fpsimd_restore_current_state+0x44/0xe4 arch/arm64/kernel/fpsimd.c:1784 softirqs last disabled at (1164): [] alternative_has_cap_likely arch/arm64/include/asm/alternative-macros.h:232 [inline] softirqs last disabled at (1164): [] system_supports_fpsimd arch/arm64/include/asm/cpufeature.h:734 [inline] softirqs last disabled at (1164): [] fpsimd_restore_current_state+0x14/0xe4 arch/arm64/kernel/fpsimd.c:1777 ---[ end trace 0000000000000000 ]---