[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 31.321873] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 31.644096] kauditd_printk_skb: 10 callbacks suppressed [ 31.644109] audit: type=1400 audit(1567527343.217:35): avc: denied { map } for pid=6827 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 [ 31.698563] random: sshd: uninitialized urandom read (32 bytes read) [ 32.203870] random: sshd: uninitialized urandom read (32 bytes read) [ 32.382304] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.50' (ECDSA) to the list of known hosts. [ 37.854671] random: sshd: uninitialized urandom read (32 bytes read) 2019/09/03 16:15:49 parsed 1 programs [ 38.031653] audit: type=1400 audit(1567527349.607:36): avc: denied { map } for pid=6841 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 38.088031] audit: type=1400 audit(1567527349.657:37): avc: denied { map } for pid=6841 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=28 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 38.627024] random: cc1: uninitialized urandom read (8 bytes read) 2019/09/03 16:15:51 executed programs: 0 [ 39.514563] audit: type=1400 audit(1567527351.087:38): avc: denied { map } for pid=6841 comm="syz-execprog" path="/root/syzkaller-shm292795751" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 39.810887] IPVS: ftp: loaded support on port[0] = 21 [ 40.613286] chnl_net:caif_netlink_parms(): no params data found [ 40.641041] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.647691] bridge0: port 1(bridge_slave_0) entered disabled state [ 40.654746] device bridge_slave_0 entered promiscuous mode [ 40.661633] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.668076] bridge0: port 2(bridge_slave_1) entered disabled state [ 40.675062] device bridge_slave_1 entered promiscuous mode [ 40.688260] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.697232] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.712797] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.719904] team0: Port device team_slave_0 added [ 40.725433] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.732482] team0: Port device team_slave_1 added [ 40.737621] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 40.744916] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 40.801792] device hsr_slave_0 entered promiscuous mode [ 40.880398] device hsr_slave_1 entered promiscuous mode [ 40.940517] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 40.947376] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 40.960765] bridge0: port 2(bridge_slave_1) entered blocking state [ 40.967164] bridge0: port 2(bridge_slave_1) entered forwarding state [ 40.974095] bridge0: port 1(bridge_slave_0) entered blocking state [ 40.980491] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.005596] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 41.012462] 8021q: adding VLAN 0 to HW filter on device bond0 [ 41.021534] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 41.029418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 41.048199] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.055699] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.065362] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 41.071723] 8021q: adding VLAN 0 to HW filter on device team0 [ 41.079592] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.087472] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.093825] bridge0: port 1(bridge_slave_0) entered forwarding state [ 41.111384] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.119059] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.125460] bridge0: port 2(bridge_slave_1) entered forwarding state [ 41.133085] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.140751] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.148210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 41.156116] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 41.164635] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 41.173737] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 41.179722] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 41.191390] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 41.202119] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 41.631421] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 42.150461] audit: type=1400 audit(1567527353.717:39): avc: denied { create } for pid=6871 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 42.175187] audit: type=1400 audit(1567527353.727:40): avc: denied { write } for pid=6871 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 42.199497] audit: type=1400 audit(1567527353.727:41): avc: denied { read } for pid=6871 comm="syz-executor.0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1 [ 42.984221] kasan: CONFIG_KASAN_INLINE enabled [ 42.988959] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 42.996675] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 43.003025] Modules linked in: [ 43.006203] CPU: 1 PID: 7064 Comm: syz-executor.0 Not tainted 4.14.141 #37 [ 43.013267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.022612] task: ffff888094490640 task.stack: ffff88808d9b8000 [ 43.028740] RIP: 0010:__smc_diag_dump.isra.0+0x342/0x17b0 [ 43.034257] RSP: 0018:ffff88808d9bf4f0 EFLAGS: 00010203 [ 43.039605] RAX: dffffc0000000000 RBX: ffff888089a92000 RCX: 0000000000000001 [ 43.046864] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000e [ 43.054110] RBP: ffff88808d9bf6c8 R08: 0000000000000040 R09: ffff888089a92050 [ 43.061368] R10: ffff888094490f38 R11: ffff888094490640 R12: ffff88808d9bf6a0 [ 43.068625] R13: ffff8880948a64d0 R14: ffff8880743f0c80 R15: ffff8880743f10d0 [ 43.075872] FS: 00007fcc232e4700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 43.084085] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.089941] CR2: 0000000000000000 CR3: 0000000090b5b000 CR4: 00000000001406e0 [ 43.097198] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.104443] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.111690] Call Trace: [ 43.114271] ? smc_diag_handler_dump+0x200/0x200 [ 43.119005] ? rcu_lockdep_current_cpu_online+0xf2/0x140 [ 43.124447] ? __kmalloc_node_track_caller+0x3d/0x80 [ 43.129539] ? rcu_read_lock_sched_held+0x110/0x130 [ 43.134532] ? kmem_cache_alloc_node_trace+0x379/0x770 [ 43.139795] ? kasan_unpoison_shadow+0x35/0x50 [ 43.144352] ? kasan_kmalloc+0xce/0xf0 [ 43.148217] ? lock_acquire+0x16f/0x430 [ 43.152186] ? smc_diag_dump+0x8d/0x2a0 [ 43.156145] smc_diag_dump+0x1e5/0x2a0 [ 43.160028] netlink_dump+0x3fa/0xb10 [ 43.164261] __netlink_dump_start+0x4ff/0x750 [ 43.168730] smc_diag_handler_dump+0x1b7/0x200 [ 43.173288] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 43.177930] ? __smc_diag_dump.isra.0+0x17b0/0x17b0 [ 43.182923] sock_diag_rcv_msg+0x29e/0x3a0 [ 43.187134] netlink_rcv_skb+0x14f/0x3c0 [ 43.191184] ? sock_diag_bind+0x90/0x90 [ 43.195147] ? lock_downgrade+0x6e0/0x6e0 [ 43.199290] ? netlink_ack+0x9a0/0x9a0 [ 43.203154] sock_diag_rcv+0x2b/0x40 [ 43.206841] netlink_unicast+0x45d/0x640 [ 43.210878] ? netlink_attachskb+0x6a0/0x6a0 [ 43.215372] ? security_netlink_send+0x81/0xb0 [ 43.219940] netlink_sendmsg+0x7c4/0xc60 [ 43.223981] ? netlink_unicast+0x640/0x640 [ 43.228200] ? security_socket_sendmsg+0x89/0xb0 [ 43.232932] ? netlink_unicast+0x640/0x640 [ 43.237145] sock_sendmsg+0xce/0x110 [ 43.240836] ___sys_sendmsg+0x70a/0x840 [ 43.244795] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 43.249530] ? __fget+0x210/0x370 [ 43.252958] ? find_held_lock+0x35/0x130 [ 43.257004] ? __fget+0x210/0x370 [ 43.260433] ? lock_downgrade+0x6e0/0x6e0 [ 43.264555] ? __fget+0x237/0x370 [ 43.267996] ? __fget_light+0x172/0x1f0 [ 43.271946] ? __fdget+0x1b/0x20 [ 43.275287] ? sockfd_lookup_light+0xb4/0x160 [ 43.279758] __sys_sendmsg+0xb9/0x140 [ 43.284583] ? SyS_shutdown+0x170/0x170 [ 43.288545] ? put_timespec64+0xb4/0x100 [ 43.292583] ? SyS_clock_gettime+0xf8/0x180 [ 43.296882] SyS_sendmsg+0x2d/0x50 [ 43.300395] ? __sys_sendmsg+0x140/0x140 [ 43.304436] do_syscall_64+0x1e8/0x640 [ 43.308297] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.313116] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.318278] RIP: 0033:0x459879 [ 43.321454] RSP: 002b:00007fcc232e3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 43.329138] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879 [ 43.336394] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 [ 43.343646] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 43.350982] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcc232e46d4 [ 43.358231] R13: 00000000004c773e R14: 00000000004dcf58 R15: 00000000ffffffff [ 43.365571] Code: 20 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 b2 13 00 00 48 8b 50 20 48 b8 00 00 00 00 00 fc ff df 48 8d 7a 0e 48 89 f9 48 c1 e9 03 <0f> b6 0c 01 48 89 f8 83 e0 07 83 c0 01 38 c8 7c 08 84 c9 0f 85 [ 43.384648] RIP: __smc_diag_dump.isra.0+0x342/0x17b0 RSP: ffff88808d9bf4f0 [ 43.391707] ---[ end trace e00d34e93a4f2b2c ]--- [ 43.396467] Kernel panic - not syncing: Fatal exception [ 43.403147] Kernel Offset: disabled [ 43.406786] Rebooting in 86400 seconds..