list_del corruption. prev->next should be ffff0000d64ba828, but was ffff8000166362e0. (prev=ffff8000166362e0) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 7613 Comm: syz-executor.5 Not tainted 6.4.0-rc3-syzkaller-geb0f1697d729 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 pstate: 60400005 (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 : ffff80002d057740 x29: ffff80002d057740 x28: 1fffe0001ad4c2df x27: 1fffe0001ad4c2d5 x26: ffff0000d6a616a8 x25: ffff0000c18d37b0 x24: ffff0000d64b8828 x23: dfff800000000000 x22: dfff800000000000 x21: ffff8000166362e0 x20: ffff0000d64b8828 x19: ffff0000d64ba828 x18: 1fffe000368447be x17: ffff800015ebd000 x16: ffff8000124340b0 x15: 0000000000000002 x14: ffff800015ec0570 x13: dfff800000000000 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : 17b3320065d7c600 x8 : 17b3320065d7c600 x7 : ffff80000828b8f8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80000aa946e4 x2 : 0000000000000001 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:488 efivarfs_destroy+0x20/0x3c fs/efivarfs/super.c:186 efivar_entry_iter+0x94/0xdc fs/efivarfs/vars.c:715 efivarfs_kill_sb+0x44/0x5c fs/efivarfs/super.c:253 deactivate_locked_super+0xac/0x124 fs/super.c:331 deactivate_super+0xe0/0x100 fs/super.c:362 put_fs_context+0x88/0x790 fs/fs_context.c:465 fscontext_release+0x64/0x84 fs/fsopen.c:73 __fput+0x30c/0x7bc fs/file_table.c:321 ____fput+0x20/0x30 fs/file_table.c:349 task_work_run+0x230/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2180/0x3c90 arch/arm64/kernel/signal.c:1305 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+0x90/0x15c arch/arm64/kernel/entry-common.c:638 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Code: 910e0000 aa1303e1 aa1503e3 95e49d75 (d4210000) ---[ end trace 0000000000000000 ]--- pstore: backend (efi_pstore) writing error (-16)