list_del corruption. prev->next should be ffff0000cec1e828, but was ffff800014882fa0 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 5341 Comm: syz.4.41 Not tainted 5.15.182-syzkaller-00056-g3b8db0e4f263 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 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 : ffff80001f1278e0 x29: ffff80001f1278e0 x28: ffff0000c5250178 x27: 1fffe0001b929325 x26: 0000000000000000 x25: dfff800000000000 x24: ffff0000cebe6828 x23: dfff800000000000 x22: ffff0000cebe6828 x21: dfff800000000000 x20: ffff800014882fa0 x19: ffff0000cec1e828 x18: 0000000000000001 x17: 0000000000000000 x16: ffff8000111a5440 x15: 00000000ffffffff x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : 750feabc51de0900 x8 : 750feabc51de0900 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001f1271d8 x4 : ffff80001422f280 x3 : ffff80000a731dc4 x2 : ffff0001a111cd10 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 put_fs_context+0x88/0x7e4 fs/fs_context.c:465 fscontext_release+0x64/0x84 fs/fsopen.c:73 __fput+0x1c0/0x7f8 fs/file_table.c:311 ____fput+0x20/0x30 fs/file_table.c:339 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: f0038140 91290000 aa1303e1 95a572fb (d4210000) ---[ end trace d5b19d58c3fb9972 ]---