list_del corruption. prev->next should be ffff0000c2c3e828, but was ffff80008e637160. (prev=ffff80008e637160) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 6011 Comm: syz-executor362 Not tainted 6.4.0-rc7-syzkaller-ge40939bbfc68 #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 : ffff800096857880 x29: ffff800096857880 x28: 1fffe0001ae100af x27: 1fffe0001ae100a5 x26: ffff0000d7080528 x25: ffff0000c1460510 x24: ffff80008e637160 x23: dfff800000000000 x22: dfff800000000000 x21: ffff80008e637160 x20: ffff80008e637160 x19: ffff0000c2c3e828 x18: 1fffe00036848bc6 x17: 20747562202c3832 x16: ffff80008a443320 x15: 0000000000000001 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000000000 x10: 0000000000000000 x9 : 7d9b1f7fe53f9400 x8 : 7d9b1f7fe53f9400 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800096857198 x4 : ffff80008df9ee80 x3 : ffff800082a94064 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 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x63c/0x1f58 kernel/exit.c:874 do_group_exit+0x194/0x22c kernel/exit.c:1024 __do_sys_exit_group kernel/exit.c:1035 [inline] __se_sys_exit_group kernel/exit.c:1033 [inline] __wake_up_parent+0x0/0x60 kernel/exit.c:1033 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x244 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x198 arch/arm64/kernel/syscall.c:191 el0_svc+0x4c/0x160 arch/arm64/kernel/entry-common.c:647 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:665 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Code: 91350000 aa1303e1 aa1503e3 95e4daf5 (d4210000) ---[ end trace 0000000000000000 ]--- pstore: backend (efi_pstore) writing error (-16)