input: syz0 as /devices/virtual/input/input380 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN NOPTI Modules linked in: CPU: 0 PID: 5172 Comm: syz-executor.2 Not tainted 4.14.125+ #6 task: 0000000082d1c2c3 task.stack: 00000000919f6048 RIP: 0010:__read_once_size include/linux/compiler.h:186 [inline] RIP: 0010:radix_tree_load_root lib/radix-tree.c:602 [inline] RIP: 0010:__radix_tree_lookup+0x43/0x220 lib/radix-tree.c:1040 RSP: 0018:ffff8881ae65f7a0 EFLAGS: 00010216 RAX: dffffc0000000203 RBX: 1ffff11035ccbeff RCX: 0000000000000275 RDX: ffffffff8282200f RSI: ffffc90001732000 RDI: 0000000000001010 RBP: dffffc0000000000 R08: 00000000000052b8 R09: 0000000000040045 R10: ffff8881a555b758 R11: 0000000000000001 R12: 000000000001b9b9 R13: 0000000000000000 R14: 0000000000001010 R15: ffff8881ae65f838 FS: 00007f0685ca3700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd74b83ff8 CR3: 00000001c6998003 CR4: 00000000001606b0 Call Trace: radix_tree_delete_item+0x96/0x1a0 lib/radix-tree.c:2043 idr_remove_ext include/linux/idr.h:144 [inline] idr_remove include/linux/idr.h:149 [inline] kernfs_put fs/kernfs/dir.c:542 [inline] kernfs_put+0x1b8/0x480 fs/kernfs/dir.c:506 kernfs_create_dir_ns+0x10c/0x130 fs/kernfs/dir.c:1012 sysfs_create_dir_ns+0xb7/0x1d0 fs/sysfs/dir.c:55 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x27f/0x830 lib/kobject.c:229 Code: 00 00 00 00 00 fc ff df 53 48 83 ec 20 48 89 44 24 10 48 c1 e8 03 48 01 e8 48 89 54 24 08 48 89 04 24 e8 b1 b2 ae fe 48 8b 04 24 <80> 38 00 0f 85 a3 01 00 00 49 8b 5e 08 48 89 d8 83 e0 03 48 83 RIP: __read_once_size include/linux/compiler.h:186 [inline] RSP: ffff8881ae65f7a0 RIP: radix_tree_load_root lib/radix-tree.c:602 [inline] RSP: ffff8881ae65f7a0 RIP: __radix_tree_lookup+0x43/0x220 lib/radix-tree.c:1040 RSP: ffff8881ae65f7a0 ---[ end trace 3e3af4d407d94063 ]--- Kernel panic - not syncing: Fatal exception Kernel Offset: 0x3000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Rebooting in 86400 seconds..