list_del corruption. prev->next should be ffff0000ce7ba828, but was ffff8000159c4ac0. (prev=ffff8000159c4ac0)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4430 Comm: syz.4.5 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __list_del_entry_valid+0x13c/0x158 lib/list_debug.c:59
lr : __list_del_entry_valid+0x13c/0x158 lib/list_debug.c:59
sp : ffff8000216b7880
x29: ffff8000216b7880 x28: ffff0000f6170eb0 x27: 1fffe000189e5685
x26: ffff0000c4f2b428 x25: ffff0000c0501e60 x24: ffff0000ce7b8828
x23: dfff800000000000 x22: dfff800000000000 x21: ffff8000159c4ac0
x20: ffff0000ce7b8828 x19: ffff0000ce7ba828 x18: ffff800011b9bf60
x17: 1fffe00033eaa57e x16: ffff8000082d92bc x15: ffff80001521d000
x14: 0000000000000001 x13: 1ffff000042d6e78 x12: 0000000000ff0100
x11: ff00800008311668 x10: 0000000000000000 x9 : d271e361cf3c3300
x8 : d271e361cf3c3300 x7 : ffff800008257984 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000a890350
x2 : ffff00019f552d10 x1 : 0000000100000000 x0 : 000000000000006d
Call trace:
 __list_del_entry_valid+0x13c/0x158 lib/list_debug.c:59
 __list_del_entry include/linux/list.h:134 [inline]
 list_del include/linux/list.h:148 [inline]
 efivar_entry_remove+0x38/0x110 fs/efivarfs/vars.c:493
 efivarfs_destroy+0x20/0x3c fs/efivarfs/super.c:185
 efivar_entry_iter+0x94/0xdc fs/efivarfs/vars.c:720
 efivarfs_kill_sb+0x58/0x70 fs/efivarfs/super.c:259
 deactivate_locked_super+0xac/0x120 fs/super.c:332
 deactivate_super+0xe4/0x104 fs/super.c:363
 put_fs_context+0x88/0x780 fs/fs_context.c:486
 fscontext_release+0x64/0x84 fs/fsopen.c:79
 __fput+0x1bc/0x7b8 fs/file_table.c:320
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x1ec/0x278 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1fa0/0x2aa4 arch/arm64/kernel/signal.c:1151
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x128 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 91300000 aa1303e1 aa1503e3 95c1ea98 (d4210000) 
---[ end trace 0000000000000000 ]---