list_del corruption. prev->next should be ffff0000cb9c6828, but was ffff80000d6381b0. (prev=ffff80000d6381b0) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3099 Comm: syz-executor265 Not tainted 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 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 : ffff80000ff9bb00 x29: ffff80000ff9bb00 x28: 00000000000a0003 x27: 0000000000000000 x26: ffff0000ca669d68 x25: 0000000000000000 x24: ffff0000c049b288 x23: ffff0000cb9c5828 x22: 0000000000000000 x21: ffff8000093c7efc x20: ffff80000d6381b0 x19: ffff0000cb9c6000 x18: 000000000000014f x17: 0000000000000000 x16: ffff80000dbe6158 x15: ffff0000cb9a1a40 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000cb9a1a40 x11: ff808000081c4d64 x10: 0000000000000000 x9 : 419797865dd5f900 x8 : 419797865dd5f900 x7 : ffff80000816678c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefbecd0 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 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x2dc/0xcac kernel/exit.c:820 __arm64_sys_exit_group+0x0/0x18 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __wake_up_parent+0x0/0x40 kernel/exit.c:959 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x140 arch/arm64/kernel/syscall.c:197 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 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: b001b740 91044000 aa0803e3 94aa89e7 (d4210000) ---[ end trace 0000000000000000 ]---