Warning: Permanently added '10.128.0.244' (ECDSA) to the list of known hosts. [ 86.088601][ T29] audit: type=1400 audit(1590299603.109:8): avc: denied { execmem } for pid=7053 comm="syz-executor194" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 86.112149][ T7061] IPVS: ftp: loaded support on port[0] = 21 [ 86.134096][ T7063] IPVS: ftp: loaded support on port[0] = 21 [ 86.134124][ T7060] IPVS: ftp: loaded support on port[0] = 21 [ 86.153416][ T7064] IPVS: ftp: loaded support on port[0] = 21 [ 86.154111][ T7062] IPVS: ftp: loaded support on port[0] = 21 [ 86.172728][ T7065] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 104.047544][T13541] ================================================================== [ 104.056494][T13541] BUG: KASAN: use-after-free in hci_sock_bind+0x591/0x1140 [ 104.064184][T13541] Write of size 4 at addr ffff88808a1ed250 by task syz-executor194/13541 [ 104.073057][T13541] [ 104.075404][T13541] CPU: 1 PID: 13541 Comm: syz-executor194 Not tainted 5.7.0-rc6-syzkaller #0 [ 104.084268][T13541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 104.095642][T13541] Call Trace: [ 104.099682][T13541] dump_stack+0x188/0x20d [ 104.104343][T13541] print_address_description.constprop.0.cold+0xd3/0x413 [ 104.112149][T13541] ? kfree_skbmem+0xef/0x1b0 [ 104.117206][T13541] ? vprintk_func+0x81/0x17e [ 104.121999][T13541] ? hci_sock_bind+0x591/0x1140 [ 104.127041][T13541] __kasan_report.cold+0x20/0x38 [ 104.132514][T13541] ? hci_sock_bind+0x591/0x1140 [ 104.138119][T13541] ? hci_sock_bind+0x591/0x1140 [ 104.143351][T13541] kasan_report+0x33/0x50 [ 104.148272][T13541] check_memory_region+0x141/0x190 [ 104.153960][T13541] hci_sock_bind+0x591/0x1140 [ 104.158834][T13541] ? hci_sock_compat_ioctl+0x80/0x80 [ 104.164564][T13541] __sys_bind+0x20e/0x250 [ 104.170390][T13541] ? __ia32_sys_socketpair+0xf0/0xf0 [ 104.176831][T13541] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 104.184224][T13541] ? __x64_sys_futex+0x376/0x4f0 [ 104.189817][T13541] ? __x64_sys_futex+0x380/0x4f0 [ 104.195315][T13541] ? unlock_page_memcg+0x30/0x30 [ 104.200549][T13541] ? switch_fpu_return+0x1db/0x4b0 [ 104.206680][T13541] ? fpregs_mark_activate+0x320/0x320 [ 104.212562][T13541] ? trace_hardirqs_off_caller+0x55/0x230 [ 104.218573][T13541] __x64_sys_bind+0x6f/0xb0 [ 104.223241][T13541] ? lockdep_hardirqs_on+0x463/0x620 [ 104.228728][T13541] do_syscall_64+0xf6/0x7d0 [ 104.234215][T13541] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 104.240759][T13541] RIP: 0033:0x446a19 [ 104.246516][T13541] Code: e8 6c e7 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 db 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 104.272125][T13541] RSP: 002b:00007f93aeff5d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 104.282866][T13541] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446a19 [ 104.292272][T13541] RDX: 0000000000000006 RSI: 0000000020000140 RDI: 0000000000000005 [ 104.300647][T13541] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 104.309734][T13541] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 104.319891][T13541] R13: 0000000000000005 R14: 0000000000000004 R15: 00007f93aeff66d0 [ 104.328603][T13541] [ 104.331102][T13541] Allocated by task 13545: [ 104.337281][T13541] save_stack+0x1b/0x40 [ 104.342050][T13541] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 104.348158][T13541] kmem_cache_alloc_trace+0x153/0x7d0 [ 104.353844][T13541] hci_alloc_dev+0x3e/0x1ff0 [ 104.358795][T13541] __vhci_create_device+0x100/0x5b0 [ 104.364276][T13541] vhci_write+0x2bf/0x450 [ 104.369376][T13541] new_sync_write+0x4a2/0x700 [ 104.375216][T13541] __vfs_write+0xc9/0x100 [ 104.380427][T13541] vfs_write+0x268/0x5d0 [ 104.385394][T13541] ksys_write+0x12d/0x250 [ 104.390440][T13541] do_syscall_64+0xf6/0x7d0 [ 104.395686][T13541] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 104.402372][T13541] [ 104.404796][T13541] Freed by task 13542: [ 104.409567][T13541] save_stack+0x1b/0x40 [ 104.417376][T13541] __kasan_slab_free+0xf7/0x140 [ 104.422409][T13541] kfree+0x109/0x2b0 [ 104.426740][T13541] bt_host_release+0x15/0x20 [ 104.431787][T13541] device_release+0x71/0x200 [ 104.436666][T13541] kobject_put+0x1e7/0x2e0 [ 104.441336][T13541] put_device+0x1b/0x30 [ 104.445670][T13541] vhci_release+0x78/0xe0 [ 104.450022][T13541] __fput+0x33e/0x880 [ 104.454114][T13541] task_work_run+0xf4/0x1b0 [ 104.458835][T13541] exit_to_usermode_loop+0x2fa/0x360 [ 104.464443][T13541] do_syscall_64+0x6b1/0x7d0 [ 104.469246][T13541] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 104.475325][T13541] [ 104.477669][T13541] The buggy address belongs to the object at ffff88808a1ec000 [ 104.477669][T13541] which belongs to the cache kmalloc-8k of size 8192 [ 104.494023][T13541] The buggy address is located 4688 bytes inside of [ 104.494023][T13541] 8192-byte region [ffff88808a1ec000, ffff88808a1ee000) [ 104.507648][T13541] The buggy address belongs to the page: [ 104.514032][T13541] page:ffffea0002287b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea0002287b00 order:2 compound_mapcount:0 compound_pincount:0 [ 104.530630][T13541] flags: 0xfffe0000010200(slab|head) [ 104.537142][T13541] raw: 00fffe0000010200 ffffea00025cf708 ffffea00025b4e08 ffff8880aa0021c0 [ 104.547539][T13541] raw: 0000000000000000 ffff88808a1ec000 0000000100000001 0000000000000000 [ 104.557825][T13541] page dumped because: kasan: bad access detected [ 104.565075][T13541] [ 104.567842][T13541] Memory state around the buggy address: [ 104.574028][T13541] ffff88808a1ed100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 104.584266][T13541] ffff88808a1ed180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb executing program executing program executing program executing program executing program executing program [ 104.592699][T13541] >ffff88808a1ed200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 104.602298][T13541] ^ [ 104.609874][T13541] ffff88808a1ed280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 104.618693][T13541] ffff88808a1ed300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 104.628724][T13541] ================================================================== [ 104.637487][T13541] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 108.331949][T13541] Kernel panic - not syncing: panic_on_warn set ... [ 108.338664][T13541] CPU: 0 PID: 13541 Comm: syz-executor194 Tainted: G B 5.7.0-rc6-syzkaller #0 [ 108.348808][T13541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 108.358858][T13541] Call Trace: [ 108.362152][T13541] dump_stack+0x188/0x20d [ 108.366490][T13541] panic+0x2e3/0x75c [ 108.370381][T13541] ? add_taint.cold+0x16/0x16 [ 108.375054][T13541] ? preempt_schedule_common+0x5e/0xc0 [ 108.380514][T13541] ? hci_sock_bind+0x591/0x1140 [ 108.385367][T13541] ? preempt_schedule_thunk+0x16/0x18 [ 108.390744][T13541] ? trace_hardirqs_on+0x55/0x220 [ 108.396120][T13541] ? hci_sock_bind+0x591/0x1140 [ 108.400967][T13541] end_report+0x4d/0x53 [ 108.405123][T13541] __kasan_report.cold+0xd/0x38 [ 108.409975][T13541] ? hci_sock_bind+0x591/0x1140 [ 108.414824][T13541] ? hci_sock_bind+0x591/0x1140 [ 108.419683][T13541] kasan_report+0x33/0x50 [ 108.424271][T13541] check_memory_region+0x141/0x190 [ 108.429498][T13541] hci_sock_bind+0x591/0x1140 [ 108.434177][T13541] ? hci_sock_compat_ioctl+0x80/0x80 [ 108.439466][T13541] __sys_bind+0x20e/0x250 [ 108.443842][T13541] ? __ia32_sys_socketpair+0xf0/0xf0 [ 108.449136][T13541] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 108.455387][T13541] ? __x64_sys_futex+0x376/0x4f0 [ 108.460322][T13541] ? __x64_sys_futex+0x380/0x4f0 [ 108.466248][T13541] ? unlock_page_memcg+0x30/0x30 [ 108.471189][T13541] ? switch_fpu_return+0x1db/0x4b0 [ 108.476319][T13541] ? fpregs_mark_activate+0x320/0x320 [ 108.481728][T13541] ? trace_hardirqs_off_caller+0x55/0x230 [ 108.487477][T13541] __x64_sys_bind+0x6f/0xb0 [ 108.491982][T13541] ? lockdep_hardirqs_on+0x463/0x620 [ 108.497282][T13541] do_syscall_64+0xf6/0x7d0 [ 108.501787][T13541] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 108.507675][T13541] RIP: 0033:0x446a19 [ 108.511784][T13541] Code: e8 6c e7 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 db 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 108.531470][T13541] RSP: 002b:00007f93aeff5d88 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 [ 108.539880][T13541] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446a19 [ 108.547849][T13541] RDX: 0000000000000006 RSI: 0000000020000140 RDI: 0000000000000005 [ 108.555922][T13541] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 108.563975][T13541] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 108.571961][T13541] R13: 0000000000000005 R14: 0000000000000004 R15: 00007f93aeff66d0 [ 108.581414][T13541] Kernel Offset: disabled [ 108.585735][T13541] Rebooting in 86400 seconds..