list_del corruption. prev->next should be ffff0000eba1a828, but was ffff8000159b4b40. (prev=ffff8000159b4b40) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 7423 Comm: syz.5.677 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 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 : ffff800023107880 x29: ffff800023107880 x28: ffff0000e28428d0 x27: 1fffe0001a2bf055 x26: ffff0000d15f82a8 x25: ffff0000c04c9e60 x24: ffff0000eba1c828 x23: dfff800000000000 x22: dfff800000000000 x21: ffff8000159b4b40 x20: ffff0000eba1c828 x19: ffff0000eba1a828 x18: ffff800011b8bf60 x17: 1fffe00033ea877e x16: ffff8000082d9364 x15: 0000000040000000 x14: 0000000000000001 x13: 1ffff00004620e78 x12: 0000000000ff0100 x11: ff00800008311710 x10: 0000000000000000 x9 : d97703b42d272d00 x8 : d97703b42d272d00 x7 : ffff80000825796c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000a88bdd0 x2 : ffff00019f543d10 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: 912c0000 aa1303e1 aa1503e3 95c1b6e8 (d4210000) ---[ end trace 0000000000000000 ]---