list_del corruption. prev->next should be ffff0000d8a50828, but was ffff800015d3ce60. (prev=ffff800015d3ce60) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4250 Comm: syz-executor105 Not tainted 6.1.35-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 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 : ffff80001d9c7890 x29: ffff80001d9c7890 x28: 1fffe0001b4bc32f x27: 1fffe0001b4bc325 x26: ffff0000da5e1928 x25: ffff0000c0595950 x24: ffff0000d8a52828 x23: dfff800000000000 x22: dfff800000000000 x21: ffff800015d3ce60 x20: ffff0000d8a52828 x19: ffff0000d8a50828 x18: 1fffe000368b9f76 x17: ffff8000155bd000 x16: ffff8000121066e4 x15: ffff0001b45cfbbc x14: 1ffff00002ab80b0 x13: dfff800000000000 x12: 0000000000000001 x11: ff80800008345658 x10: 0000000000000000 x9 : 4d661473471e8900 x8 : 4d661473471e8900 x7 : ffff80000827cdcc x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000aa7548c x2 : ffff0001b45cfcd0 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:183 efivar_entry_iter+0x94/0xdc fs/efivarfs/vars.c:715 efivarfs_kill_sb+0x38/0x48 fs/efivarfs/super.c:244 deactivate_locked_super+0xac/0x124 fs/super.c:332 deactivate_super+0xf0/0x110 fs/super.c:363 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:320 ____fput+0x20/0x30 fs/file_table.c:348 task_work_run+0x240/0x2f0 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x554/0x1a88 kernel/exit.c:869 do_group_exit+0x194/0x22c kernel/exit.c:1019 __do_sys_exit_group kernel/exit.c:1030 [inline] __se_sys_exit_group kernel/exit.c:1028 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1028 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: 91288000 aa1303e1 aa1503e3 95d87f9d (d4210000) ---[ end trace 0000000000000000 ]---