[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 31.054810] random: sshd: uninitialized urandom read (32 bytes read) [ 31.433198] kauditd_printk_skb: 9 callbacks suppressed [ 31.433206] audit: type=1400 audit(1572194630.478:35): avc: denied { map } for pid=6877 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 [ 31.476739] random: sshd: uninitialized urandom read (32 bytes read) Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 32.055010] random: sshd: uninitialized urandom read (32 bytes read) [ 32.236755] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.144' (ECDSA) to the list of known hosts. [ 37.723512] random: sshd: uninitialized urandom read (32 bytes read) [ 37.841806] audit: type=1400 audit(1572194636.888:36): avc: denied { map } for pid=6891 comm="syz-executor310" path="/root/syz-executor310374882" 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 [ 38.071119] IPVS: ftp: loaded support on port[0] = 21 [ 38.829613] chnl_net:caif_netlink_parms(): no params data found [ 38.858748] bridge0: port 1(bridge_slave_0) entered blocking state [ 38.865632] bridge0: port 1(bridge_slave_0) entered disabled state [ 38.872826] device bridge_slave_0 entered promiscuous mode [ 38.879823] bridge0: port 2(bridge_slave_1) entered blocking state [ 38.886439] bridge0: port 2(bridge_slave_1) entered disabled state [ 38.893383] device bridge_slave_1 entered promiscuous mode [ 38.907354] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 38.916257] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 38.932862] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 38.939993] team0: Port device team_slave_0 added [ 38.945489] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 38.952662] team0: Port device team_slave_1 added [ 38.957771] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 38.965074] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 39.011959] device hsr_slave_0 entered promiscuous mode [ 39.050309] device hsr_slave_1 entered promiscuous mode [ 39.090674] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 39.097579] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 39.111063] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.117450] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.124362] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.130744] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.156049] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 39.162899] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.171563] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 39.180735] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 39.188632] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.195839] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.204832] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 39.211153] 8021q: adding VLAN 0 to HW filter on device team0 [ 39.219111] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 39.226933] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.233292] bridge0: port 1(bridge_slave_0) entered forwarding state [ 39.242209] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 39.250012] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.256416] bridge0: port 2(bridge_slave_1) entered forwarding state [ 39.268793] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 39.277479] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 39.286797] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 39.296909] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 39.306823] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 39.316291] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 39.322751] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 39.334396] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 39.344303] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 39.368972] kasan: CONFIG_KASAN_INLINE enabled [ 39.374155] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 39.382699] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 39.389113] Modules linked in: [ 39.392295] CPU: 1 PID: 6892 Comm: syz-executor310 Not tainted 4.14.150 #0 [ 39.399287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.408626] task: ffff888087d90400 task.stack: ffff888081530000 [ 39.414687] RIP: 0010:addr_resolve+0x28c/0xa80 [ 39.419246] RSP: 0018:ffff888081537928 EFLAGS: 00010202 [ 39.424590] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11010fb218e [ 39.431840] RDX: 00000000000000a8 RSI: 0000000000000001 RDI: 0000000000000286 [ 39.439097] RBP: ffff888081537a20 R08: ffff888087d90400 R09: 0000000000000000 [ 39.446345] R10: 0000000000000000 R11: ffff888087d90400 R12: 00000000ffffff9d [ 39.453594] R13: ffff8880a1eda800 R14: ffff8880a62c65e0 R15: 0000000000000540 [ 39.460847] FS: 0000000002586880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 39.469054] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.474913] CR2: 0000000020000180 CR3: 00000000873a6000 CR4: 00000000001406e0 [ 39.482170] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.489424] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.496676] Call Trace: [ 39.499248] ? addr_resolve_neigh+0x820/0x820 [ 39.503735] ? lockdep_init_map+0x9/0x10 [ 39.507774] ? init_timer_key+0xdc/0x300 [ 39.511813] rdma_resolve_ip+0x3d9/0x660 [ 39.515852] ? cma_work_handler+0x1d0/0x1d0 [ 39.520155] rdma_resolve_addr+0x1f5/0x2520 [ 39.524466] ? __mutex_unlock_slowpath+0x71/0x800 [ 39.529287] ? lock_downgrade+0x740/0x740 [ 39.533418] ? rdma_bind_addr+0x1a60/0x1a60 [ 39.537716] ? wait_for_completion+0x420/0x420 [ 39.542278] ucma_resolve_ip+0x104/0x190 [ 39.546317] ? ucma_resolve_ip+0x104/0x190 [ 39.550530] ? ucma_bind+0x190/0x190 [ 39.554220] ? kasan_check_write+0x14/0x20 [ 39.558435] ? _copy_from_user+0x99/0x110 [ 39.562564] ucma_write+0x231/0x310 [ 39.566168] ? ucma_bind+0x190/0x190 [ 39.569856] ? ucma_open+0x290/0x290 [ 39.573551] __vfs_write+0x105/0x6b0 [ 39.577252] ? ucma_open+0x290/0x290 [ 39.580949] ? kernel_read+0x120/0x120 [ 39.584814] ? __inode_security_revalidate+0xd6/0x130 [ 39.589980] ? avc_policy_seqno+0x9/0x20 [ 39.594017] ? selinux_file_permission+0x85/0x480 [ 39.598836] ? security_file_permission+0x89/0x1f0 [ 39.603744] ? rw_verify_area+0xea/0x2b0 [ 39.607795] vfs_write+0x198/0x500 [ 39.611311] SyS_write+0xfd/0x230 [ 39.614738] ? SyS_read+0x230/0x230 [ 39.618862] ? do_syscall_64+0x53/0x640 [ 39.622814] ? SyS_read+0x230/0x230 [ 39.626416] do_syscall_64+0x1e8/0x640 [ 39.630281] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.635102] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 39.640270] RIP: 0033:0x441d19 [ 39.643447] RSP: 002b:00007ffcaf728438 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 39.651131] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441d19 [ 39.658392] RDX: 0000000000000048 RSI: 00000000200000c0 RDI: 0000000000000004 [ 39.665639] RBP: 00007ffcaf728450 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 39.672886] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 39.680653] R13: 00000000004032b0 R14: 0000000000000000 R15: 0000000000000000 [ 39.687904] Code: e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f4 06 00 00 45 89 6e 64 e8 05 23 ef fc 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 c3 06 00 00 48 8b 83 40 05 00 00 65 ff 08 e8 [ 39.706984] RIP: addr_resolve+0x28c/0xa80 RSP: ffff888081537928 [ 39.714321] ---[ end trace 524d6d257cddee0a ]--- [ 39.719087] Kernel panic - not syncing: Fatal exception [ 39.725716] Kernel Offset: disabled [ 39.729345] Rebooting in 86400 seconds..