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 CPU: 0 PID: 11205 Comm: syz-executor3 Not tainted 5.0.0-rc2+ #33 kobject: 'loop2' (00000000c0fee821): kobject_uevent_env Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kernfs_add_one+0x343/0x4d0 fs/kernfs/dir.c:812 Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83 kobject: 'loop2' (00000000c0fee821): fill_kobj_path: path = '/devices/virtual/block/loop2' RSP: 0018:ffff88808cfc7670 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90008230000 RDX: 0000000000000001 RSI: ffffffff81fbaf7b RDI: 0000000000000008 IPVS: ftp: loaded support on port[0] = 21 RBP: ffff88808cfc76b0 R08: 1ffffffff13510c4 R09: fffffbfff13510c5 R10: fffffbfff13510c4 R11: ffffffff89a88627 R12: ffff88808d9aa700 R13: ffff88808d9aa700 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fa608adc700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop1' (0000000023c010bf): kobject_uevent_env CR2: 0000000000619570 CR3: 0000000059f56000 CR4: 00000000001406f0 kobject: 'loop1' (0000000023c010bf): fill_kobj_path: path = '/devices/virtual/block/loop1' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'bluetooth' (00000000755f941d): kobject_add_internal: parent: 'virtual', set: '(null)' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kernfs_create_dir_ns+0xff/0x160 fs/kernfs/dir.c:1031 sysfs_create_dir_ns+0x192/0x340 fs/sysfs/dir.c:59 kobject: 'hci0' (000000009cb71251): kobject_add_internal: parent: 'bluetooth', set: 'devices' kobject: 'hci0' (000000009cb71251): kobject_uevent_env create_dir lib/kobject.c:88 [inline] kobject_add_internal lib/kobject.c:247 [inline] kobject_add_internal.cold+0x129/0x6d8 lib/kobject.c:217 kobject: 'lo' (00000000bf779709): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'hci0' (000000009cb71251): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' kobject_add_varg lib/kobject.c:382 [inline] kobject_add+0x150/0x1c0 lib/kobject.c:426 device_add+0x3d9/0x1800 drivers/base/core.c:1912 kobject: 'rfkill137' (00000000b3cca0a1): kobject_add_internal: parent: 'hci0', set: 'devices' hci_register_dev+0x3b9/0x9d0 net/bluetooth/hci_core.c:3261 kobject: 'lo' (00000000bf779709): kobject_uevent_env kobject: 'rfkill137' (00000000b3cca0a1): kobject_uevent_env __vhci_create_device+0x2d0/0x5a0 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+0x2d0/0x470 drivers/bluetooth/hci_vhci.c:299 kobject: 'rfkill137' (00000000b3cca0a1): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill137' call_write_iter include/linux/fs.h:1862 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x764/0xb40 fs/read_write.c:487 kobject: 'lo' (00000000bf779709): fill_kobj_path: path = '/devices/virtual/net/lo' vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0x105/0x260 fs/read_write.c:598 kobject: 'rfkill137' (00000000b3cca0a1): kobject_uevent_env __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: 'rfkill137' (00000000b3cca0a1): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill137' do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290 kobject: 'queues' (0000000034f39606): kobject_add_internal: parent: 'lo', set: '' entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458099 Code: 6d 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'rfkill137' (00000000b3cca0a1): kobject_cleanup, parent (null) RSP: 002b:00007fa608adbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458099 RDX: 0000000000000002 RSI: 00000000200000c0 RDI: 0000000000000006 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa608adc6d4 kobject: 'queues' (0000000034f39606): kobject_uevent_env R13: 00000000004c701a R14: 00000000004dc6a0 R15: 00000000ffffffff Modules linked in: ---[ end trace dd33c4949ff22fc7 ]--- kobject: 'loop4' (00000000dd9e31eb): kobject_uevent_env RIP: 0010:kernfs_add_one+0x343/0x4d0 fs/kernfs/dir.c:812 kobject: 'rfkill137' (00000000b3cca0a1): calling ktype release Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 52 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 70 48 8d 7b 08 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 1f 01 00 00 8b 5b 08 31 ff 83 kobject: 'loop2' (00000000c0fee821): kobject_uevent_env RSP: 0018:ffff88808cfc7670 EFLAGS: 00010202 kobject: 'loop2' (00000000c0fee821): fill_kobj_path: path = '/devices/virtual/block/loop2' RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90008230000 kobject: 'rfkill137': free name kobject: 'queues' (0000000034f39606): kobject_uevent_env: filter function caused the event to drop! kobject: 'hci0' (000000009cb71251): kobject_uevent_env kobject: 'rx-0' (00000000ea00cdb9): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'hci0' (000000009cb71251): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0' kobject: 'loop4' (00000000dd9e31eb): fill_kobj_path: path = '/devices/virtual/block/loop4' RDX: 0000000000000001 RSI: ffffffff81fbaf7b RDI: 0000000000000008 kobject: 'rx-0' (00000000ea00cdb9): kobject_uevent_env kobject: 'bluetooth' (00000000755f941d): kobject_cleanup, parent (null) kobject: 'rx-0' (00000000ea00cdb9): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' kobject: 'bluetooth' (00000000755f941d): calling ktype release kobject: 'loop4' (00000000dd9e31eb): kobject_uevent_env kobject: 'bluetooth': free name kobject: 'hci0' (000000009cb71251): kobject_cleanup, parent (null) kobject: 'loop2' (00000000c0fee821): kobject_uevent_env kobject: 'hci0' (000000009cb71251): calling ktype release kobject: 'tx-0' (0000000013c1e016): kobject_add_internal: parent: 'queues', set: 'queues' RBP: ffff88808cfc76b0 R08: 1ffffffff13510c4 R09: fffffbfff13510c5 R10: fffffbfff13510c4 R11: ffffffff89a88627 R12: ffff88808d9aa700 kobject: 'loop2' (00000000c0fee821): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'hci0': free name kobject: 'tx-0' (0000000013c1e016): kobject_uevent_env R13: ffff88808d9aa700 R14: 0000000000000000 R15: 0000000000000000 kobject: 'loop4' (00000000dd9e31eb): fill_kobj_path: path = '/devices/virtual/block/loop4' FS: 00007fa608adc700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 kobject: 'tx-0' (0000000013c1e016): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'loop4' (00000000dd9e31eb): kobject_uevent_env kobject: 'tunl0' (00000000f8cfe581): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop4' (00000000dd9e31eb): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tunl0' (00000000f8cfe581): kobject_uevent_env kobject: 'loop1' (0000000023c010bf): kobject_uevent_env CR2: 0000000000da49b8 CR3: 0000000059f56000 CR4: 00000000001406e0 kobject: 'bluetooth' (000000000abfe315): kobject_add_internal: parent: 'virtual', set: '(null)' audit: type=1400 audit(2000000072.040:62): avc: denied { map_read map_write } for pid=11257 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 IPVS: ftp: loaded support on port[0] = 21 kobject: 'tunl0' (00000000f8cfe581): fill_kobj_path: path = '/devices/virtual/net/tunl0' kobject: 'loop1' (0000000023c010bf): fill_kobj_path: path = '/devices/virtual/block/loop1' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'hci2' (00000000cddbd15c): kobject_add_internal: parent: 'bluetooth', set: 'devices'