Warning: Permanently added '10.128.0.71' (ECDSA) to the list of known hosts. [ 37.919313] random: sshd: uninitialized urandom read (32 bytes read) [ 38.102807] kauditd_printk_skb: 11 callbacks suppressed [ 38.102818] audit: type=1400 audit(1561898713.997:36): avc: denied { map } for pid=6960 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/06/30 12:45:14 parsed 1 programs [ 38.902628] audit: type=1400 audit(1561898714.797:37): avc: denied { map } for pid=6960 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=13802 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 39.638179] random: cc1: uninitialized urandom read (8 bytes read) 2019/06/30 12:45:16 executed programs: 0 [ 41.300196] IPVS: ftp: loaded support on port[0] = 21 [ 41.587855] chnl_net:caif_netlink_parms(): no params data found [ 41.616967] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.623832] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.631031] device bridge_slave_0 entered promiscuous mode [ 41.637972] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.644500] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.651811] device bridge_slave_1 entered promiscuous mode [ 41.666422] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.675310] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.690487] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.697646] team0: Port device team_slave_0 added [ 41.703515] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.710532] team0: Port device team_slave_1 added [ 41.715628] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.722942] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.771862] device hsr_slave_0 entered promiscuous mode [ 41.810342] device hsr_slave_1 entered promiscuous mode [ 41.860727] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 41.867656] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 41.881813] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.888188] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.895121] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.901472] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.927074] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 41.934179] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.942728] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 41.951881] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.970432] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.977828] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.988296] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 41.994600] 8021q: adding VLAN 0 to HW filter on device team0 [ 42.003096] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.010744] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.017069] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.025745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.033335] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.039649] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.057449] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 42.067368] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 42.078797] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 42.085712] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 42.093421] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 42.101787] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.109225] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.117022] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 42.123789] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 42.135986] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 42.145359] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 42.581128] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 43.345926] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.359196] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.371843] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.384205] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.396522] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.408935] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.421510] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.434488] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.448008] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.460455] SELinux: unrecognized netlink message: protocol=4 nlmsg_type=0 sclass=netlink_tcpdiag_socket pig=6993 comm=syz-executor.0 [ 43.878509] ================================================================== [ 43.886318] BUG: KASAN: use-after-free in __smc_diag_dump.isra.0+0x16e0/0x17b0 [ 43.893667] Read of size 8 at addr ffff8880871f4a60 by task syz-executor.0/6992 [ 43.901091] [ 43.902703] CPU: 1 PID: 6992 Comm: syz-executor.0 Not tainted 4.14.131 #25 [ 43.909725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.919466] Call Trace: [ 43.922054] dump_stack+0x138/0x19c [ 43.925680] ? __smc_diag_dump.isra.0+0x16e0/0x17b0 [ 43.930691] print_address_description.cold+0x7c/0x1dc [ 43.935949] ? __smc_diag_dump.isra.0+0x16e0/0x17b0 [ 43.940947] kasan_report.cold+0xa9/0x2af [ 43.945074] __asan_report_load8_noabort+0x14/0x20 [ 43.950004] __smc_diag_dump.isra.0+0x16e0/0x17b0 [ 43.954966] ? smc_diag_handler_dump+0x200/0x200 [ 43.959804] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 43.965262] ? __kmalloc_node_track_caller+0x3d/0x80 [ 43.970353] ? rcu_read_lock_sched_held+0x110/0x130 [ 43.975352] ? kmem_cache_alloc_node_trace+0x379/0x770 [ 43.980742] ? kasan_unpoison_shadow+0x35/0x50 [ 43.985307] ? kasan_kmalloc+0xce/0xf0 [ 43.989191] ? lock_acquire+0x16f/0x430 [ 43.993222] ? smc_diag_dump+0x8d/0x2a0 [ 43.997203] smc_diag_dump+0x1e5/0x2a0 [ 44.001083] netlink_dump+0x3fa/0xb10 [ 44.004978] __netlink_dump_start+0x4ff/0x750 [ 44.009596] smc_diag_handler_dump+0x1b7/0x200 [ 44.014161] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 44.018815] ? __smc_diag_dump.isra.0+0x17b0/0x17b0 [ 44.023820] sock_diag_rcv_msg+0x29e/0x3a0 [ 44.028049] netlink_rcv_skb+0x14f/0x3c0 [ 44.032105] ? sock_diag_bind+0x90/0x90 [ 44.036069] ? netlink_ack+0x9a0/0x9a0 [ 44.039942] sock_diag_rcv+0x2b/0x40 [ 44.043634] netlink_unicast+0x45d/0x780 [ 44.047799] ? netlink_attachskb+0x6a0/0x6a0 [ 44.052192] ? security_netlink_send+0x81/0xb0 [ 44.056750] netlink_sendmsg+0x7c4/0xc60 [ 44.060788] ? netlink_unicast+0x780/0x780 [ 44.065192] ? security_socket_sendmsg+0x89/0xb0 [ 44.070037] ? netlink_unicast+0x780/0x780 [ 44.074275] sock_sendmsg+0xce/0x110 [ 44.077987] kernel_sendmsg+0x44/0x50 [ 44.081774] sock_no_sendpage+0x107/0x130 [ 44.085904] ? sock_kzfree_s+0x50/0x50 [ 44.089794] ? pipe_lock+0x63/0x80 [ 44.093327] kernel_sendpage+0x92/0xf0 [ 44.097202] ? sock_kzfree_s+0x50/0x50 [ 44.101074] sock_sendpage+0x8b/0xc0 [ 44.104766] ? kernel_sendpage+0xf0/0xf0 [ 44.108808] pipe_to_sendpage+0x242/0x340 [ 44.112937] ? direct_splice_actor+0x190/0x190 [ 44.117504] __splice_from_pipe+0x348/0x780 [ 44.121935] ? direct_splice_actor+0x190/0x190 [ 44.126693] ? direct_splice_actor+0x190/0x190 [ 44.131257] splice_from_pipe+0xf0/0x150 [ 44.135299] ? splice_shrink_spd+0xb0/0xb0 [ 44.139532] ? security_file_permission+0x89/0x1f0 [ 44.144445] generic_splice_sendpage+0x3c/0x50 [ 44.149010] ? splice_from_pipe+0x150/0x150 [ 44.153318] SyS_splice+0xd92/0x1430 [ 44.157023] ? put_timespec64+0xb4/0x100 [ 44.161204] ? compat_SyS_vmsplice+0x250/0x250 [ 44.165785] ? do_syscall_64+0x53/0x640 [ 44.169853] ? compat_SyS_vmsplice+0x250/0x250 [ 44.174420] do_syscall_64+0x1e8/0x640 [ 44.178294] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.183125] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.188304] RIP: 0033:0x459519 [ 44.191483] RSP: 002b:00007f0706b22c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 44.199275] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459519 [ 44.206636] RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000005 [ 44.213899] RBP: 000000000075bf20 R08: 0000000080000001 R09: 0000000000000000 [ 44.221154] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0706b236d4 [ 44.228405] R13: 00000000004c8a66 R14: 00000000004deb70 R15: 00000000ffffffff [ 44.235772] [ 44.237384] Allocated by task 6992: [ 44.241002] save_stack_trace+0x16/0x20 [ 44.245434] save_stack+0x45/0xd0 [ 44.260008] kasan_kmalloc+0xce/0xf0 [ 44.263719] kasan_slab_alloc+0xf/0x20 [ 44.267605] kmem_cache_alloc+0x12e/0x780 [ 44.271753] sock_alloc_inode+0x1d/0x260 [ 44.275808] alloc_inode+0x64/0x180 [ 44.279427] new_inode_pseudo+0x19/0xf0 [ 44.283384] sock_alloc+0x41/0x280 [ 44.287041] __sock_create+0x8f/0x620 [ 44.290821] sock_create_kern+0x3b/0x50 [ 44.294777] smc_create+0x109/0x300 [ 44.298490] __sock_create+0x2f6/0x620 [ 44.302363] SyS_socket+0xd3/0x170 [ 44.305902] do_syscall_64+0x1e8/0x640 [ 44.309770] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.314935] [ 44.316647] Freed by task 6990: [ 44.319925] save_stack_trace+0x16/0x20 [ 44.323887] save_stack+0x45/0xd0 [ 44.327324] kasan_slab_free+0x75/0xc0 [ 44.331210] kmem_cache_free+0x83/0x2b0 [ 44.335176] sock_destroy_inode+0x54/0x60 [ 44.339423] destroy_inode+0xc2/0x120 [ 44.343222] evict+0x3e6/0x630 [ 44.346413] iput+0x471/0x900 [ 44.349589] __sock_release+0x236/0x2b0 [ 44.353556] sock_release+0x18/0x20 [ 44.357163] smc_release+0x23b/0x630 [ 44.360904] __sock_release+0xce/0x2b0 [ 44.364905] sock_close+0x1b/0x30 [ 44.368338] __fput+0x275/0x7a0 [ 44.371608] ____fput+0x16/0x20 [ 44.374869] task_work_run+0x114/0x190 [ 44.378739] exit_to_usermode_loop+0x1da/0x220 [ 44.383307] do_syscall_64+0x4bc/0x640 [ 44.387179] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.392345] [ 44.393953] The buggy address belongs to the object at ffff8880871f4a40 [ 44.393953] which belongs to the cache sock_inode_cache of size 992 [ 44.407035] The buggy address is located 32 bytes inside of [ 44.407035] 992-byte region [ffff8880871f4a40, ffff8880871f4e20) [ 44.418813] The buggy address belongs to the page: [ 44.423741] page:ffffea00021c7d00 count:1 mapcount:0 mapping:ffff8880871f4140 index:0xffff8880871f4ffd [ 44.433261] flags: 0x1fffc0000000100(slab) [ 44.437595] raw: 01fffc0000000100 ffff8880871f4140 ffff8880871f4ffd 0000000100000003 [ 44.445466] raw: ffffea00021c6be0 ffffea00021c19a0 ffff88821b7573c0 0000000000000000 [ 44.453401] page dumped because: kasan: bad access detected [ 44.459179] [ 44.460792] Memory state around the buggy address: [ 44.465717] ffff8880871f4900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.473072] ffff8880871f4980: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc [ 44.480422] >ffff8880871f4a00: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 44.487765] ^ [ 44.494253] ffff8880871f4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.501609] ffff8880871f4b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.508962] ================================================================== [ 44.516363] Disabling lock debugging due to kernel taint [ 44.522840] Kernel panic - not syncing: panic_on_warn set ... [ 44.522840] [ 44.530219] CPU: 1 PID: 6992 Comm: syz-executor.0 Tainted: G B 4.14.131 #25 [ 44.538440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.547971] Call Trace: [ 44.550571] dump_stack+0x138/0x19c [ 44.554198] ? __smc_diag_dump.isra.0+0x16e0/0x17b0 [ 44.559203] panic+0x1f2/0x426 [ 44.562380] ? add_taint.cold+0x16/0x16 [ 44.566346] kasan_end_report+0x47/0x4f [ 44.570305] kasan_report.cold+0x130/0x2af [ 44.574523] __asan_report_load8_noabort+0x14/0x20 [ 44.579489] __smc_diag_dump.isra.0+0x16e0/0x17b0 [ 44.584330] ? smc_diag_handler_dump+0x200/0x200 [ 44.589159] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 44.594589] ? __kmalloc_node_track_caller+0x3d/0x80 [ 44.599672] ? rcu_read_lock_sched_held+0x110/0x130 [ 44.604669] ? kmem_cache_alloc_node_trace+0x379/0x770 [ 44.609922] ? kasan_unpoison_shadow+0x35/0x50 [ 44.614525] ? kasan_kmalloc+0xce/0xf0 [ 44.618402] ? lock_acquire+0x16f/0x430 [ 44.622356] ? smc_diag_dump+0x8d/0x2a0 [ 44.626309] smc_diag_dump+0x1e5/0x2a0 [ 44.630174] netlink_dump+0x3fa/0xb10 [ 44.633952] __netlink_dump_start+0x4ff/0x750 [ 44.638424] smc_diag_handler_dump+0x1b7/0x200 [ 44.642980] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 44.647628] ? __smc_diag_dump.isra.0+0x17b0/0x17b0 [ 44.652625] sock_diag_rcv_msg+0x29e/0x3a0 [ 44.656846] netlink_rcv_skb+0x14f/0x3c0 [ 44.660886] ? sock_diag_bind+0x90/0x90 [ 44.664962] ? netlink_ack+0x9a0/0x9a0 [ 44.668844] sock_diag_rcv+0x2b/0x40 [ 44.672536] netlink_unicast+0x45d/0x780 [ 44.676625] ? netlink_attachskb+0x6a0/0x6a0 [ 44.681032] ? security_netlink_send+0x81/0xb0 [ 44.685691] netlink_sendmsg+0x7c4/0xc60 [ 44.689736] ? netlink_unicast+0x780/0x780 [ 44.694060] ? security_socket_sendmsg+0x89/0xb0 [ 44.698827] ? netlink_unicast+0x780/0x780 [ 44.703051] sock_sendmsg+0xce/0x110 [ 44.706743] kernel_sendmsg+0x44/0x50 [ 44.710521] sock_no_sendpage+0x107/0x130 [ 44.714644] ? sock_kzfree_s+0x50/0x50 [ 44.718593] ? pipe_lock+0x63/0x80 [ 44.722122] kernel_sendpage+0x92/0xf0 [ 44.726036] ? sock_kzfree_s+0x50/0x50 [ 44.729912] sock_sendpage+0x8b/0xc0 [ 44.733607] ? kernel_sendpage+0xf0/0xf0 [ 44.737659] pipe_to_sendpage+0x242/0x340 [ 44.741798] ? direct_splice_actor+0x190/0x190 [ 44.746425] __splice_from_pipe+0x348/0x780 [ 44.750912] ? direct_splice_actor+0x190/0x190 [ 44.755476] ? direct_splice_actor+0x190/0x190 [ 44.760185] splice_from_pipe+0xf0/0x150 [ 44.764237] ? splice_shrink_spd+0xb0/0xb0 [ 44.768452] ? security_file_permission+0x89/0x1f0 [ 44.773496] generic_splice_sendpage+0x3c/0x50 [ 44.778070] ? splice_from_pipe+0x150/0x150 [ 44.782374] SyS_splice+0xd92/0x1430 [ 44.786201] ? put_timespec64+0xb4/0x100 [ 44.790384] ? compat_SyS_vmsplice+0x250/0x250 [ 44.794945] ? do_syscall_64+0x53/0x640 [ 44.798912] ? compat_SyS_vmsplice+0x250/0x250 [ 44.803481] do_syscall_64+0x1e8/0x640 [ 44.807347] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.812177] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 44.817351] RIP: 0033:0x459519 [ 44.820518] RSP: 002b:00007f0706b22c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 [ 44.828209] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459519 [ 44.835579] RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000005 [ 44.842833] RBP: 000000000075bf20 R08: 0000000080000001 R09: 0000000000000000 [ 44.850086] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0706b236d4 [ 44.857337] R13: 00000000004c8a66 R14: 00000000004deb70 R15: 00000000ffffffff [ 44.865469] Kernel Offset: disabled [ 44.869088] Rebooting in 86400 seconds..