[?25l[?1c7[ ok 8[?25h[?0c. [ 30.983018] random: sshd: uninitialized urandom read (32 bytes read) [ 31.285635] kauditd_printk_skb: 10 callbacks suppressed [ 31.285643] audit: type=1400 audit(1578446718.543:35): avc: denied { map } for pid=7083 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 31.339435] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 32.020720] random: sshd: uninitialized urandom read (32 bytes read) [ 32.205079] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.47' (ECDSA) to the list of known hosts. [ 37.780410] random: sshd: uninitialized urandom read (32 bytes read) [ 37.900094] audit: type=1400 audit(1578446725.153:36): avc: denied { map } for pid=7097 comm="syz-executor172" path="/root/syz-executor172107113" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 38.200852] IPVS: ftp: loaded support on port[0] = 21 [ 38.948194] chnl_net:caif_netlink_parms(): no params data found [ 38.979338] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.985952] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.992893] device bridge_slave_0 entered promiscuous mode [ 38.999616] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.006201] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.013171] device bridge_slave_1 entered promiscuous mode [ 39.028129] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 39.037601] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 39.053329] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 39.060684] team0: Port device team_slave_0 added [ 39.066034] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 39.073135] team0: Port device team_slave_1 added [ 39.078466] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 39.085895] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.142086] device hsr_slave_0 entered promiscuous mode [ 39.180241] device hsr_slave_1 entered promiscuous mode [ 39.260608] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.267663] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.305797] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.312212] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.318905] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.325273] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.351971] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 39.358031] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.366778] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.375137] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.393807] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.401062] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.409971] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 39.416292] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.424990] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.432603] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.438932] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.448087] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.455669] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.462041] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.476289] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.485637] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.494717] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.504376] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 39.515092] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 39.526213] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 39.532546] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.539446] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.553805] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 39.565195] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 39.572538] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 39.583652] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.637841] IPv6: ADDRCONF(NETDEV_UP): veth0_virt_wifi: link is not ready [ 39.647236] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 39.681034] IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready [ 39.687858] IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready [ 39.694718] IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready [ 39.703762] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 39.711181] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 39.718009] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 39.726135] device veth0_vlan entered promiscuous mode executing program [ 39.734734] device veth1_vlan entered promiscuous mode [ 39.740643] IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready [ 39.748623] IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready [ 39.790767] ================================================================== [ 39.798184] BUG: KASAN: slab-out-of-bounds in macvlan_broadcast+0x4b9/0x5c0 [ 39.805266] Read of size 4 at addr ffff888095c0da01 by task syz-executor172/7098 [ 39.812776] [ 39.814387] CPU: 0 PID: 7098 Comm: syz-executor172 Not tainted 4.14.162-syzkaller #0 [ 39.822244] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.831614] Call Trace: [ 39.834181] dump_stack+0x142/0x197 [ 39.837790] ? macvlan_broadcast+0x4b9/0x5c0 [ 39.842180] print_address_description.cold+0x7c/0x1dc [ 39.847437] ? macvlan_broadcast+0x4b9/0x5c0 [ 39.851829] kasan_report.cold+0xa9/0x2af [ 39.855965] __asan_report_load_n_noabort+0xf/0x20 [ 39.860261] protocol 88fb is buggy, dev hsr_slave_0 [ 39.860876] macvlan_broadcast+0x4b9/0x5c0 [ 39.860888] ? validate_xmit_skb+0x650/0x9d0 [ 39.865974] protocol 88fb is buggy, dev hsr_slave_1 [ 39.870157] macvlan_start_xmit+0x56b/0x72d [ 39.870170] packet_direct_xmit+0x431/0x640 [ 39.870181] packet_sendmsg+0x1dd4/0x5a60 [ 39.870189] ? avc_has_perm_noaudit+0x420/0x420 [ 39.870201] ? trace_hardirqs_on+0x10/0x10 [ 39.870224] ? packet_notifier+0x760/0x760 [ 39.905372] ? release_sock+0x14a/0x1b0 [ 39.909332] ? security_socket_sendmsg+0x89/0xb0 [ 39.914074] ? packet_notifier+0x760/0x760 [ 39.918310] sock_sendmsg+0xce/0x110 [ 39.922010] SYSC_sendto+0x206/0x310 [ 39.925703] ? SYSC_connect+0x2d0/0x2d0 [ 39.929662] ? move_addr_to_kernel.part.0+0x100/0x100 [ 39.934869] ? ioctl_preallocate+0x1c0/0x1c0 [ 39.939266] ? security_file_ioctl+0x7d/0xb0 [ 39.940256] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 39.943658] ? security_file_ioctl+0x89/0xb0 [ 39.951720] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 39.954525] SyS_sendto+0x40/0x50 [ 39.962104] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 39.964694] ? SyS_getpeername+0x30/0x30 [ 39.975474] do_syscall_64+0x1e8/0x640 [ 39.979338] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.980329] protocol 88fb is buggy, dev hsr_slave_0 [ 39.984166] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 39.989179] protocol 88fb is buggy, dev hsr_slave_1 [ 39.994327] RIP: 0033:0x4429d9 [ 39.994332] RSP: 002b:00007ffc6e0d9a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 39.994341] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004429d9 [ 39.994345] RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000003 [ 39.994352] RBP: 00007ffc6e0d9aa0 R08: 0000000000000000 R09: 0000000000000000 [ 40.031941] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 40.039187] R13: 0000000000403f70 R14: 0000000000000000 R15: 0000000000000000 [ 40.046442] [ 40.048047] Allocated by task 6943: [ 40.051659] save_stack_trace+0x16/0x20 [ 40.055608] save_stack+0x45/0xd0 [ 40.059034] kasan_kmalloc+0xce/0xf0 [ 40.062726] kasan_slab_alloc+0xf/0x20 [ 40.066589] kmem_cache_alloc+0x12e/0x780 [ 40.070717] get_empty_filp+0x8c/0x3f0 [ 40.074580] path_openat+0x8f/0x3f70 [ 40.078266] do_filp_open+0x18e/0x250 [ 40.082057] do_sys_open+0x2c5/0x430 [ 40.085748] SyS_open+0x2d/0x40 [ 40.089003] do_syscall_64+0x1e8/0x640 [ 40.092870] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.098032] [ 40.099637] Freed by task 0: [ 40.102640] save_stack_trace+0x16/0x20 [ 40.106594] save_stack+0x45/0xd0 [ 40.110032] kasan_slab_free+0x75/0xc0 [ 40.113902] kmem_cache_free+0x83/0x2b0 [ 40.117851] file_free_rcu+0x63/0xa0 [ 40.121541] rcu_process_callbacks+0x7b8/0x12b0 [ 40.126187] __do_softirq+0x244/0x9a0 [ 40.129960] [ 40.131621] The buggy address belongs to the object at ffff888095c0d7c0 [ 40.131621] which belongs to the cache filp of size 456 [ 40.143646] The buggy address is located 121 bytes to the right of [ 40.143646] 456-byte region [ffff888095c0d7c0, ffff888095c0d988) [ 40.156017] The buggy address belongs to the page: [ 40.161013] page:ffffea0002570340 count:1 mapcount:0 mapping:ffff888095c0d040 index:0x0 [ 40.169143] flags: 0xfffe0000000100(slab) [ 40.173315] raw: 00fffe0000000100 ffff888095c0d040 0000000000000000 0000000100000006 [ 40.181173] raw: ffffea000253a220 ffffea00025708a0 ffff8880aa9e99c0 0000000000000000 [ 40.189028] page dumped because: kasan: bad access detected [ 40.194720] [ 40.196380] Memory state around the buggy address: [ 40.201290] ffff888095c0d900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.208642] ffff888095c0d980: fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 40.215988] >ffff888095c0da00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 40.223346] ^ [ 40.226701] ffff888095c0da80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.234073] ffff888095c0db00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.241408] ================================================================== [ 40.248742] Disabling lock debugging due to kernel taint [ 40.254193] Kernel panic - not syncing: panic_on_warn set ... [ 40.254193] [ 40.261545] CPU: 0 PID: 7098 Comm: syz-executor172 Tainted: G B 4.14.162-syzkaller #0 [ 40.270613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.280058] Call Trace: [ 40.282638] dump_stack+0x142/0x197 [ 40.286253] ? macvlan_broadcast+0x4b9/0x5c0 [ 40.290645] panic+0x1f9/0x42d [ 40.293820] ? add_taint.cold+0x16/0x16 [ 40.297773] kasan_end_report+0x47/0x4f [ 40.301723] kasan_report.cold+0x130/0x2af [ 40.305949] __asan_report_load_n_noabort+0xf/0x20 [ 40.310858] macvlan_broadcast+0x4b9/0x5c0 [ 40.315135] ? validate_xmit_skb+0x650/0x9d0 [ 40.319599] macvlan_start_xmit+0x56b/0x72d [ 40.323907] packet_direct_xmit+0x431/0x640 [ 40.328206] packet_sendmsg+0x1dd4/0x5a60 [ 40.332333] ? avc_has_perm_noaudit+0x420/0x420 [ 40.336979] ? trace_hardirqs_on+0x10/0x10 [ 40.341244] ? packet_notifier+0x760/0x760 [ 40.345460] ? release_sock+0x14a/0x1b0 [ 40.349416] ? security_socket_sendmsg+0x89/0xb0 [ 40.354194] ? packet_notifier+0x760/0x760 [ 40.358404] sock_sendmsg+0xce/0x110 [ 40.362101] SYSC_sendto+0x206/0x310 [ 40.365791] ? SYSC_connect+0x2d0/0x2d0 [ 40.369747] ? move_addr_to_kernel.part.0+0x100/0x100 [ 40.374919] ? ioctl_preallocate+0x1c0/0x1c0 [ 40.379317] ? security_file_ioctl+0x7d/0xb0 [ 40.383707] ? security_file_ioctl+0x89/0xb0 [ 40.388099] SyS_sendto+0x40/0x50 [ 40.391540] ? SyS_getpeername+0x30/0x30 [ 40.395581] do_syscall_64+0x1e8/0x640 [ 40.399445] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.404272] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 40.409440] RIP: 0033:0x4429d9 [ 40.412610] RSP: 002b:00007ffc6e0d9a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 40.420301] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004429d9 [ 40.427555] RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000003 [ 40.434802] RBP: 00007ffc6e0d9aa0 R08: 0000000000000000 R09: 0000000000000000 [ 40.442052] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 40.449297] R13: 0000000000403f70 R14: 0000000000000000 R15: 0000000000000000 [ 40.457855] Kernel Offset: disabled [ 40.461912] Rebooting in 86400 seconds..