list_del corruption. prev->next should be ffff0000ca9dae60, but was c740000500000001. (prev=ffff0000fa0c5010) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3204 Comm: syz-executor.3 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #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 : ffff8000136a3a80 x29: ffff8000136a3a80 x28: ffff0000ca9dad48 x27: ffff80000d471e30 x26: 0000000000000000 x25: ffff0000f9fc7f80 x24: ffff0000fa0c5010 x23: 0000000000000000 x22: 0000000000000003 x21: ffff0001086b67f0 x20: ffff0000f9fc7f80 x19: ffff0000ca9dae60 x18: 00000000000000c0 x17: 20747562202c3036 x16: ffff80000db49158 x15: ffff00010aaf1a80 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff00010aaf1a80 x11: ff808000081c0d5c x10: 0000000000000000 x9 : f046872a05487100 x8 : f046872a05487100 x7 : ffff80000819545c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefbecd0 x1 : 0000000000000003 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_init include/linux/list.h:206 [inline] list_lru_del+0x12c/0x1b4 mm/list_lru.c:152 d_lru_del+0x148/0x1a8 fs/dcache.c:441 select_collect+0x78/0x1e4 fs/dcache.c:1565 d_walk+0x13c/0x55c fs/dcache.c:1386 shrink_dcache_parent+0x98/0x280 fs/dcache.c:1625 do_one_tree fs/dcache.c:1682 [inline] shrink_dcache_for_umount+0x4c/0x140 fs/dcache.c:1699 generic_shutdown_super+0x30/0x190 fs/super.c:473 kill_block_super+0x30/0x78 fs/super.c:1427 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 cleanup_mnt+0x1f8/0x234 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0xc4/0x14c kernel/task_work.c:177 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:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: d001b460 91346000 aa0803e3 94a76157 (d4210000) ---[ end trace 0000000000000000 ]---