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 kobject: 'rfkill751' (000000001e9c9749): kobject_uevent_env CPU: 1 PID: 6700 Comm: syz-executor243 Not tainted 4.20.0-rc3+ #348 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kernfs_add_one+0x342/0x4d0 fs/kernfs/dir.c:812 kobject: 'hci0' (00000000986508a4): kobject_uevent_env Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 49 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d 70 49 8d 7d 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 16 01 00 00 45 8b 6d 08 31 ff RSP: 0018:ffff8881b2ccf5d0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8881c22961c0 RCX: ffffffff87daaf77 RDX: 0000000000000001 RSI: ffffffff81f901ca RDI: 0000000000000008 kobject: 'hci3' (0000000019dd48aa): kobject_add_internal: parent: 'bluetooth', set: 'devices' RBP: ffff8881b2ccf618 R08: fffffbfff12cfa21 R09: fffffbfff12cfa20 R10: fffffbfff12cfa20 R11: ffffffff8967d107 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 kobject: 'hci3' (0000000019dd48aa): kobject_uevent_env FS: 00000000019dd880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000046ba30 CR3: 00000001bef06000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'rfkill751' (000000001e9c9749): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill751' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kernfs_create_dir_ns+0xf6/0x160 fs/kernfs/dir.c:1031 sysfs_create_dir_ns+0x19b/0x340 fs/sysfs/dir.c:58 kobject: 'hci0' (00000000986508a4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' kobject: 'rfkill751' (000000001e9c9749): kobject_uevent_env create_dir lib/kobject.c:88 [inline] kobject_add_internal.cold.11+0x116/0x6af lib/kobject.c:247 kobject: 'hci3' (0000000019dd48aa): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject_add_varg lib/kobject.c:382 [inline] kobject_add+0x13f/0x1b0 lib/kobject.c:426 kobject: 'rfkill752' (00000000b358e99f): kobject_add_internal: parent: 'hci0', set: 'devices' kobject: 'rfkill751' (000000001e9c9749): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill751' device_add+0x445/0x18e0 drivers/base/core.c:1879 kobject: 'rfkill752' (00000000b358e99f): kobject_uevent_env kobject: 'rfkill752' (00000000b358e99f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill752' kobject: 'rfkill753' (00000000c70508af): kobject_add_internal: parent: 'hci3', set: 'devices' hci_register_dev+0x3b3/0x9c0 net/bluetooth/hci_core.c:3261 kobject: 'rfkill752' (00000000b358e99f): kobject_uevent_env kobject: 'rfkill753' (00000000c70508af): kobject_uevent_env __vhci_create_device+0x2c1/0x580 drivers/bluetooth/hci_vhci.c:139 vhci_create_device drivers/bluetooth/hci_vhci.c:163 [inline] vhci_get_user drivers/bluetooth/hci_vhci.c:219 [inline] vhci_write+0x2de/0x470 drivers/bluetooth/hci_vhci.c:299 kobject: 'rfkill752' (00000000b358e99f): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill752' call_write_iter include/linux/fs.h:1857 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 kobject: 'rfkill753' (00000000c70508af): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill753' kobject: 'rfkill751' (000000001e9c9749): kobject_cleanup, parent (null) vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 kobject: 'rfkill751' (000000001e9c9749): calling ktype release __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 kobject: 'rfkill752' (00000000b358e99f): kobject_cleanup, parent (null) do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'rfkill753' (00000000c70508af): kobject_uevent_env kobject: 'rfkill752' (00000000b358e99f): calling ktype release kobject: 'rfkill751': free name entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'rfkill752': free name RIP: 0033:0x440e49 Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffffd4939b8 EFLAGS: 00000213 ORIG_RAX: 0000000000000001 kobject: 'rfkill753' (00000000c70508af): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill753' RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e49 RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000019dd880 R11: 0000000000000213 R12: 0000000000009307 R13: 0000000000401d70 R14: 0000000000000000 R15: 0000000000000000 kobject: 'hci2' (00000000a49219cc): kobject_uevent_env Modules linked in: kobject: 'hci0' (00000000986508a4): kobject_uevent_env kobject: 'hci4' (0000000089b53495): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci5' (00000000f95af84a): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'rfkill753' (00000000c70508af): kobject_cleanup, parent (null) kobject: 'hci0' (00000000986508a4): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' kobject: 'hci2' (00000000a49219cc): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'hci5' (00000000f95af84a): kobject_uevent_env kobject: 'hci4' (0000000089b53495): kobject_uevent_env kobject: 'hci0' (00000000986508a4): kobject_cleanup, parent (null) kobject: 'rfkill753' (00000000c70508af): calling ktype release kobject: 'hci5' (00000000f95af84a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' kobject: 'hci2' (00000000a49219cc): kobject_cleanup, parent (null) kobject: 'hci0' (00000000986508a4): calling ktype release kobject: 'rfkill753': free name kobject: 'rfkill754' (0000000078024b61): kobject_add_internal: parent: 'hci5', set: 'devices' kobject: 'hci4' (0000000089b53495): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' kobject: 'hci0': free name kobject: 'hci2' (00000000a49219cc): calling ktype release kobject: 'rfkill754' (0000000078024b61): kobject_uevent_env kobject: 'hci3' (0000000019dd48aa): kobject_uevent_env kobject: 'hci0' (00000000cb736619): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci2': free name kobject: 'rfkill754' (0000000078024b61): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill754' kobject: 'hci3' (0000000019dd48aa): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'rfkill754' (0000000078024b61): kobject_uevent_env kobject: 'rfkill755' (00000000b90abe39): kobject_add_internal: parent: 'hci4', set: 'devices' kobject: 'hci0' (00000000cb736619): kobject_uevent_env kobject: 'rfkill755' (00000000b90abe39): kobject_uevent_env kobject: 'hci0' (00000000cb736619): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' kobject: 'hci3' (0000000019dd48aa): kobject_cleanup, parent (null) kobject: 'rfkill754' (0000000078024b61): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5/rfkill754' kobject: 'hci2' (00000000e3f7ffbb): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci3' (0000000019dd48aa): calling ktype release kobject: 'hci2' (00000000e3f7ffbb): kobject_uevent_env kobject: 'hci3': free name kobject: 'hci2' (00000000e3f7ffbb): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2' kobject: 'rfkill755' (00000000b90abe39): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill755' ---[ end trace e1ba67516c7039a6 ]--- kobject: 'rfkill756' (00000000cd81689b): kobject_add_internal: parent: 'hci0', set: 'devices' RIP: 0010:kernfs_add_one+0x342/0x4d0 fs/kernfs/dir.c:812 kobject: 'rfkill755' (00000000b90abe39): kobject_uevent_env kobject: 'hci3' (00000000e56e0ddd): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'rfkill755' (00000000b90abe39): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4/rfkill755' Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 49 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6d 70 49 8d 7d 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 16 01 00 00 45 8b 6d 08 31 ff kobject: 'rfkill756' (00000000cd81689b): kobject_uevent_env kobject: 'hci3' (00000000e56e0ddd): kobject_uevent_env kobject: 'rfkill756' (00000000cd81689b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill756' RSP: 0018:ffff8881b2ccf5d0 EFLAGS: 00010202 kobject: 'rfkill754' (0000000078024b61): kobject_cleanup, parent (null) kobject: 'hci3' (00000000e56e0ddd): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3' kobject: 'rfkill757' (000000003850f356): kobject_add_internal: parent: 'hci2', set: 'devices' RAX: dffffc0000000000 RBX: ffff8881c22961c0 RCX: ffffffff87daaf77 kobject: 'rfkill756' (00000000cd81689b): kobject_uevent_env RDX: 0000000000000001 RSI: ffffffff81f901ca RDI: 0000000000000008 kobject: 'rfkill754' (0000000078024b61): calling ktype release kobject: 'rfkill757' (000000003850f356): kobject_uevent_env kobject: 'rfkill754': free name kobject: 'rfkill756' (00000000cd81689b): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill756' kobject: 'hci5' (00000000f95af84a): kobject_uevent_env RBP: ffff8881b2ccf618 R08: fffffbfff12cfa21 R09: fffffbfff12cfa20 kobject: 'hci5' (00000000f95af84a): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' R10: fffffbfff12cfa20 R11: ffffffff8967d107 R12: 0000000000000000 kobject: 'hci5' (00000000f95af84a): kobject_cleanup, parent (null) R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 kobject: 'rfkill757' (000000003850f356): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill757' FS: 00000000019dd880(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 kobject: 'hci5' (00000000f95af84a): calling ktype release CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'hci5': free name CR2: 00000000006cb090 CR3: 00000001bef06000 CR4: 00000000001406f0 kobject: 'rfkill755' (00000000b90abe39): kobject_cleanup, parent (null) DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'rfkill755' (00000000b90abe39): calling ktype release kobject: 'rfkill758' (0000000075422144): kobject_add_internal: parent: 'hci3', set: 'devices' kobject: 'rfkill757' (000000003850f356): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'rfkill757' (000000003850f356): fill_kobj_path: path = '/devices/virtual/bluetooth/hci2/rfkill757' kobject: 'rfkill758' (0000000075422144): kobject_uevent_env kobject: 'rfkill755': free name kobject: 'hci5' (00000000412179e5): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci5' (00000000412179e5): kobject_uevent_env kobject: 'hci4' (0000000089b53495): kobject_uevent_env kobject: 'rfkill758' (0000000075422144): fill_kobj_path: path = '/devices/virtual/bluetooth/hci3/rfkill758' kobject: 'hci5' (00000000412179e5): fill_kobj_path: path = '/devices/virtual/bluetooth/hci5' kobject: 'hci4' (0000000089b53495): fill_kobj_path: path = '/devices/virtual/bluetooth/hci4' kobject: 'rfkill756' (00000000cd81689b): kobject_cleanup, parent (null)