------------[ cut here ]------------ WARNING: CPU: 0 PID: 15522 at fs/kernfs/dir.c:493 kernfs_get.part.0.cold+0x11/0x18 fs/kernfs/dir.c:493 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 15522 Comm: syz-executor.2 Not tainted 5.3.0-rc2+ #109 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2dc/0x755 kernel/panic.c:219 __warn.cold+0x20/0x4c kernel/panic.c:576 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1026 RIP: 0010:kernfs_get.part.0.cold+0x11/0x18 fs/kernfs/dir.c:493 Code: ff e8 2c 37 97 ff 48 c7 c7 80 6f 99 87 e8 74 d7 80 ff 0f 0b e9 45 a8 ff ff e8 14 37 97 ff 48 c7 c7 80 6f 99 87 e8 5c d7 80 ff <0f> 0b e9 69 ac ff ff e8 fc 36 97 ff 48 c7 c7 80 6f 99 87 e8 44 d7 RSP: 0018:ffff88805c567818 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff88808bfbf000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815c5216 RDI: ffffed100b8acef5 RBP: ffff88805c567828 R08: 0000000000000024 R09: fffffbfff11b42a5 R10: fffffbfff11b42a4 R11: ffffffff88da1523 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880a999ae00 kernfs_get fs/kernfs/dir.c:492 [inline] kernfs_new_node+0xb6/0x120 fs/kernfs/dir.c:700 kernfs_create_dir_ns+0x52/0x160 fs/kernfs/dir.c:1022 sysfs_create_dir_ns+0x136/0x290 fs/sysfs/dir.c:59 create_dir lib/kobject.c:89 [inline] kobject_add_internal lib/kobject.c:255 [inline] kobject_add_internal.cold+0x116/0x662 lib/kobject.c:225 kobject_add_varg lib/kobject.c:390 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:442 device_add+0x3b7/0x17a0 drivers/base/core.c:2065 hci_register_dev+0x2e8/0x8f0 net/bluetooth/hci_core.c:3307 __vhci_create_device+0x2c5/0x5d0 drivers/bluetooth/hci_vhci.c:124 vhci_create_device drivers/bluetooth/hci_vhci.c:148 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:204 [inline] vhci_write+0x2d0/0x470 drivers/bluetooth/hci_vhci.c:284 call_write_iter include/linux/fs.h:1870 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x268/0x5d0 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f94a6b7fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829 RDX: 0000000000000002 RSI: 0000000020000240 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f94a6b806d4 R13: 00000000004c9b0d R14: 00000000004e1178 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..