list_del corruption. prev->next should be ffff0000c9f7e828, but was ffff0000d4eae828
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4638 Comm: syz-executor.2 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __list_del_entry_valid+0x138/0x150 lib/list_debug.c:59
lr : __list_del_entry_valid+0x138/0x150 lib/list_debug.c:59
sp : ffff80001f2b7970
x29: ffff80001f2b7970 x28: 1ffff0000282ba9c x27: dfff800000000000
x26: 0000000000000000 x25: dfff800000000000 x24: ffff0000c9d2e828
x23: dfff800000000000 x22: ffff0000c9d2e828 x21: dfff800000000000
x20: ffff800014893160 x19: ffff0000c9f7e828 x18: 1fffe0003422158e
x17: 1fffe0003422158e x16: ffff8000111a97c4 x15: ffff8000141fec20
x14: ffff0001a110ac80 x13: 1ffff0000282c06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : d87bf05f5ee78600
x8 : d87bf05f5ee78600 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a732684
x2 : ffff0001a110ad10 x1 : 0000000100000000 x0 : 0000000000000054
Call trace:
 __list_del_entry_valid+0x138/0x150 lib/list_debug.c:59
 __list_del_entry include/linux/list.h:132 [inline]
 list_del include/linux/list.h:146 [inline]
 efivar_entry_remove+0x64/0x14c drivers/firmware/efi/vars.c:544
 efivarfs_destroy+0x20/0x5c fs/efivarfs/super.c:183
 __efivar_entry_iter+0x120/0x1a4 drivers/firmware/efi/vars.c:1094
 efivarfs_kill_sb+0x3c/0x4c fs/efivarfs/super.c:258
 deactivate_locked_super+0xb8/0x13c fs/super.c:335
 deactivate_super+0xf8/0x118 fs/super.c:366
 cleanup_mnt+0x3a4/0x458 fs/namespace.c:1139
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1146
 task_work_run+0x12c/0x1e0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 do_notify_resume+0x24b4/0x3128 arch/arm64/kernel/signal.c:949
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:133 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:138 [inline]
 el0_svc+0xf0/0x1e0 arch/arm64/kernel/entry-common.c:609
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d00381c0 91310000 aa1303e1 95a58230 (d4210000) 
---[ end trace 5f448e133b15b5b9 ]---