Warning: Permanently added '10.128.0.216' (ECDSA) to the list of known hosts. [ 72.083937] random: sshd: uninitialized urandom read (32 bytes read) [ 72.203087] audit: type=1400 audit(1569624024.196:36): avc: denied { map } for pid=6864 comm="syz-executor858" path="/root/syz-executor858514599" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 72.490989] IPVS: ftp: loaded support on port[0] = 21 executing program [ 73.275410] BUG: unable to handle kernel NULL pointer dereference at (null) [ 73.283408] IP: (null) [ 73.286763] PGD 8bf1b067 P4D 8bf1b067 PUD 970e6067 PMD 0 [ 73.292286] Oops: 0010 [#1] PREEMPT SMP KASAN [ 73.296774] Modules linked in: [ 73.299966] CPU: 1 PID: 6865 Comm: syz-executor858 Not tainted 4.14.146 #0 [ 73.306969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 73.316348] task: ffff8880a0d606c0 task.stack: ffff8880a11c0000 [ 73.322673] RIP: 0010: (null) [ 73.326565] RSP: 0018:ffff8880a11c75e8 EFLAGS: 00010246 [ 73.331919] RAX: dffffc0000000000 RBX: ffffffff86f15e00 RCX: 0000000000000000 [ 73.341062] RDX: 1ffffffff0de2bc8 RSI: 0000000000000001 RDI: ffff8880a1342900 [ 73.348478] RBP: ffff8880a11c76c0 R08: 1ffff11014238ee8 R09: ffff8880a11c7740 [ 73.355739] R10: ffffed1014238ef3 R11: ffff8880a11c779f R12: ffff8880a11c7698 [ 73.362992] R13: ffff8880a1342900 R14: 0000000000000001 R15: 0000000000000000 [ 73.370284] FS: 00005555558b3880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 [ 73.378603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.384992] CR2: 0000000000000000 CR3: 000000009483c000 CR4: 00000000001406e0 [ 73.392247] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.399601] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.406853] Call Trace: [ 73.409446] tc_bind_tclass+0x124/0x400 [ 73.413403] ? security_capable+0x8e/0xc0 [ 73.418071] ? __qdisc_calculate_pkt_len+0x2e0/0x2e0 [ 73.423214] ? memset+0x32/0x40 [ 73.426498] ? nla_parse+0x186/0x240 [ 73.430196] ? qdisc_match_from_root+0x14f/0x230 [ 73.435023] tc_ctl_tclass+0x94a/0xa70 [ 73.438892] ? qdisc_tree_reduce_backlog+0x4a0/0x4a0 [ 73.444087] ? rtnetlink_rcv_msg+0x305/0xb70 [ 73.448583] ? qdisc_tree_reduce_backlog+0x4a0/0x4a0 [ 73.453666] rtnetlink_rcv_msg+0x3eb/0xb70 [ 73.457893] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 73.462457] ? netlink_deliver_tap+0x93/0x8f0 [ 73.466958] netlink_rcv_skb+0x14f/0x3c0 [ 73.470997] ? rtnl_bridge_getlink+0x7a0/0x7a0 [ 73.475559] ? lock_downgrade+0x6e0/0x6e0 [ 73.479682] ? netlink_ack+0x9a0/0x9a0 [ 73.483558] ? netlink_deliver_tap+0xba/0x8f0 [ 73.488031] rtnetlink_rcv+0x1d/0x30 [ 73.491721] netlink_unicast+0x45d/0x640 [ 73.495799] ? netlink_attachskb+0x6a0/0x6a0 [ 73.500298] ? security_netlink_send+0x81/0xb0 [ 73.504865] netlink_sendmsg+0x7c4/0xc60 [ 73.509290] ? netlink_unicast+0x640/0x640 [ 73.513509] ? security_socket_sendmsg+0x89/0xb0 [ 73.518246] ? netlink_unicast+0x640/0x640 [ 73.522473] sock_sendmsg+0xce/0x110 [ 73.526177] ___sys_sendmsg+0x70a/0x840 [ 73.530129] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 73.534864] ? __might_fault+0x110/0x1d0 [ 73.538907] ? find_held_lock+0x35/0x130 [ 73.542963] ? __might_fault+0x110/0x1d0 [ 73.547006] ? lock_downgrade+0x6e0/0x6e0 [ 73.551252] ? kasan_check_read+0x11/0x20 [ 73.555445] ? _copy_to_user+0x87/0xd0 [ 73.559323] ? move_addr_to_user+0x94/0x1a0 [ 73.563670] ? __fget_light+0x172/0x1f0 [ 73.567630] ? __fdget+0x1b/0x20 [ 73.571412] ? sockfd_lookup_light+0xb4/0x160 [ 73.575886] __sys_sendmsg+0xb9/0x140 [ 73.579666] ? SyS_shutdown+0x170/0x170 [ 73.583622] SyS_sendmsg+0x2d/0x50 [ 73.587406] ? __sys_sendmsg+0x140/0x140 [ 73.591466] do_syscall_64+0x1e8/0x640 [ 73.595348] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 73.600177] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 73.605346] RIP: 0033:0x440d89 [ 73.608521] RSP: 002b:00007ffdb98ee9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.616212] RAX: ffffffffffffffda RBX: 00000000004a26d0 RCX: 0000000000440d89 [ 73.623459] RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 [ 73.630720] RBP: 00000000004a26d0 R08: 0000000120080522 R09: 0000000120080522 [ 73.638372] R10: 0000000120080522 R11: 0000000000000246 R12: 0000000000402290 [ 73.646506] R13: 0000000000402320 R14: 0000000000000000 R15: 0000000000000000 [ 73.653778] Code: Bad RIP value. [ 73.657284] RIP: (null) RSP: ffff8880a11c75e8 [ 73.662623] CR2: 0000000000000000 [ 73.666302] ---[ end trace 4fc9d8266c79524b ]--- [ 73.671166] Kernel panic - not syncing: Fatal exception [ 73.678186] Kernel Offset: disabled [ 73.681823] Rebooting in 86400 seconds..