list_del corruption. prev->next should be ffff000126927828, but was ffff80000d669f60. (prev=ffff80000d669f60) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 18623 Comm: syz-executor.1 Not tainted 6.1.0-rc6-syzkaller-32651-ga77d28d13789 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __list_del_entry_valid+0xbc/0xd0 lib/list_debug.c:59 lr : __list_del_entry_valid+0xbc/0xd0 lib/list_debug.c:59 sp : ffff80002234bbf0 x29: ffff80002234bbf0 x28: 00000000000a0003 x27: 0000000000000000 x26: ffff000129d359c0 x25: 0000000000000000 x24: ffff0000c049b288 x23: ffff000126926828 x22: 0000000000000000 x21: ffff8000093e986c x20: ffff80000d669f60 x19: ffff000126927000 x18: 00000000000003c1 x17: ffff80000c0ed83c x16: ffff80000dc18158 x15: ffff0000f4db0000 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000f4db0000 x11: ff808000081c4d40 x10: 0000000000000000 x9 : 8e065c7a33edde00 x8 : 8e065c7a33edde00 x7 : ffff80000816678c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcc8 x1 : 0000000100000000 x0 : 000000000000006d Call trace: __list_del_entry_valid+0xbc/0xd0 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+0x20/0x68 fs/efivarfs/vars.c:488 efivarfs_destroy+0x20/0x3c fs/efivarfs/super.c:183 efivar_entry_iter+0x64/0xac fs/efivarfs/vars.c:715 efivarfs_kill_sb+0x38/0x48 fs/efivarfs/super.c:244 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 put_fs_context+0x40/0x2ac fs/fs_context.c:465 fscontext_release+0x30/0x4c fs/fsopen.c:73 __fput+0x198/0x3e4 fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:348 task_work_run+0x100/0x148 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x174/0x1f0 arch/arm64/kernel/signal.c:1127 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+0x9c/0x150 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:584 Code: b001b7a0 91392000 aa0803e3 94aa8d07 (d4210000) ---[ end trace 0000000000000000 ]---