list_del corruption. prev->next should be ffff0000cebec828, but was ffff0000cdd82828 ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4072 Comm: syz-executor301 Not tainted 5.15.102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 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 : ffff80001c9378b0 x29: ffff80001c9378b0 x28: 1fffe0001b48a5f0 x27: 0000000000000000 x26: dfff800000000000 x25: ffff8000150e74e0 x24: 1fffe0001b478a96 x23: dfff800000000000 x22: ffff8000150e74e0 x21: dfff800000000000 x20: ffff8000150e74e0 x19: ffff0000cebec828 x18: 1fffe0003690058e x17: 1fffe0003690058e x16: ffff800011a080c4 x15: ffff800014a5f8e0 x14: 1ffff0000293806a x13: ffffffffffffffff x12: 0000000000000000 x11: ff80800008330148 x10: 0000000000000000 x9 : 0767611bda951100 x8 : 0767611bda951100 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a9bcc40 x2 : ffff0001b4802d10 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:539 efivarfs_destroy+0x20/0x5c fs/efivarfs/super.c:185 __efivar_entry_iter+0x11c/0x19c drivers/firmware/efi/vars.c:1089 efivarfs_kill_sb+0x3c/0x4c fs/efivarfs/super.c:249 deactivate_locked_super+0xb8/0x13c fs/super.c:335 deactivate_super+0x108/0x128 fs/super.c:366 put_fs_context+0x88/0x7e4 fs/fs_context.c:465 fscontext_release+0x64/0x84 fs/fsopen.c:73 __fput+0x30c/0x7f0 fs/file_table.c:280 ____fput+0x20/0x30 fs/file_table.c:308 task_work_run+0x130/0x1e4 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x55c/0x1c20 kernel/exit.c:872 do_group_exit+0x110/0x268 kernel/exit.c:994 __do_sys_exit_group kernel/exit.c:1005 [inline] __se_sys_exit_group kernel/exit.c:1003 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1003 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 :584 Code: d003afe0 913c8000 aa1303e1 95bf9ba6 (d4210000) ---[ end trace 1451094c0941ccb4 ]---