[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 57.077605][ T26] audit: type=1800 audit(1567895223.058:25): pid=8718 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 57.120009][ T26] audit: type=1800 audit(1567895223.058:26): pid=8718 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 57.165579][ T26] audit: type=1800 audit(1567895223.058:27): pid=8718 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. 2019/09/07 22:27:13 parsed 1 programs 2019/09/07 22:27:15 executed programs: 0 syzkaller login: [ 69.274142][ T8887] IPVS: ftp: loaded support on port[0] = 21 [ 69.337262][ T8887] chnl_net:caif_netlink_parms(): no params data found [ 69.366466][ T8887] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.374175][ T8887] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.382147][ T8887] device bridge_slave_0 entered promiscuous mode [ 69.390593][ T8887] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.397747][ T8887] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.405637][ T8887] device bridge_slave_1 entered promiscuous mode [ 69.422478][ T8887] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.432932][ T8887] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.451229][ T8887] team0: Port device team_slave_0 added [ 69.458851][ T8887] team0: Port device team_slave_1 added [ 69.542027][ T8887] device hsr_slave_0 entered promiscuous mode [ 69.590538][ T8887] device hsr_slave_1 entered promiscuous mode [ 69.658333][ T8887] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.665703][ T8887] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.673610][ T8887] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.680736][ T8887] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.715778][ T8887] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.727577][ T3502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.748467][ T3502] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.757111][ T3502] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.766370][ T3502] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 69.777581][ T8887] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.787864][ T3676] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.796832][ T3676] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.803940][ T3676] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.822071][ T3502] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.830875][ T3502] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.838046][ T3502] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.847247][ T3502] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.856631][ T3502] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.867687][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.880390][ T8889] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.890745][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.902044][ T8887] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.920597][ T8887] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.450998][ T8963] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 70.459152][ T8963] #PF: supervisor instruction fetch in kernel mode [ 70.466084][ T8963] #PF: error_code(0x0010) - not-present page [ 70.472068][ T8963] PGD 921ca067 P4D 921ca067 PUD 921cb067 PMD 0 [ 70.478312][ T8963] Oops: 0010 [#1] PREEMPT SMP KASAN [ 70.483491][ T8963] CPU: 0 PID: 8963 Comm: syz-executor.0 Not tainted 5.3.0-rc6-next-20190830 #75 [ 70.492504][ T8963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.502641][ T8963] RIP: 0010:0x0 [ 70.506084][ T8963] Code: Bad RIP value. [ 70.510153][ T8963] RSP: 0018:ffff8880956ef4d8 EFLAGS: 00010246 [ 70.516208][ T8963] RAX: dffffc0000000000 RBX: ffffffff884a25a0 RCX: ffffffff85b92086 [ 70.524161][ T8963] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808db6f000 [ 70.532128][ T8963] RBP: ffff8880956ef5d0 R08: ffff88809ede8680 R09: ffff8880956ef658 [ 70.540122][ T8963] R10: ffffed1012added9 R11: ffff8880956ef6cf R12: ffff88808db6f000 [ 70.548078][ T8963] R13: 0000000000000001 R14: ffff8880956ef5a8 R15: ffffffff884a25a0 [ 70.556295][ T8963] FS: 00007f832198d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 70.565315][ T8963] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.572123][ T8963] CR2: ffffffffffffffd6 CR3: 00000000921c9000 CR4: 00000000001406f0 [ 70.580108][ T8963] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.588063][ T8963] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 70.596262][ T8963] Call Trace: [ 70.599666][ T8963] tc_bind_tclass+0x13e/0x2f0 [ 70.604473][ T8963] ? qdisc_class_hash_init+0x110/0x110 [ 70.610041][ T8963] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.616407][ T8963] ? ns_capable_common+0x93/0x100 [ 70.621556][ T8963] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 70.627274][ T8963] ? qdisc_match_from_root+0x18a/0x280 [ 70.632721][ T8963] tc_ctl_tclass+0xadb/0xcd0 [ 70.637427][ T8963] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 70.643400][ T8963] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 70.648524][ T8963] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.654768][ T8963] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 70.660670][ T8963] rtnetlink_rcv_msg+0x463/0xb00 [ 70.665593][ T8963] ? rtnetlink_put_metrics+0x590/0x590 [ 70.671907][ T8963] ? netlink_deliver_tap+0x22d/0xbf0 [ 70.677195][ T8963] ? find_held_lock+0x35/0x130 [ 70.681947][ T8963] netlink_rcv_skb+0x177/0x450 [ 70.686881][ T8963] ? rtnetlink_put_metrics+0x590/0x590 [ 70.692333][ T8963] ? netlink_ack+0xb50/0xb50 [ 70.697018][ T8963] ? __kasan_check_read+0x11/0x20 [ 70.702035][ T8963] ? netlink_deliver_tap+0x254/0xbf0 [ 70.707492][ T8963] rtnetlink_rcv+0x1d/0x30 [ 70.711971][ T8963] netlink_unicast+0x531/0x710 [ 70.716738][ T8963] ? netlink_attachskb+0x7c0/0x7c0 [ 70.721928][ T8963] ? _copy_from_iter_full+0x25d/0x8c0 [ 70.727451][ T8963] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 70.733155][ T8963] ? __check_object_size+0x3d/0x437 [ 70.738448][ T8963] netlink_sendmsg+0x8a5/0xd60 [ 70.743218][ T8963] ? netlink_unicast+0x710/0x710 [ 70.748173][ T8963] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 70.753710][ T8963] ? apparmor_socket_sendmsg+0x2a/0x30 [ 70.759254][ T8963] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.765494][ T8963] ? security_socket_sendmsg+0x8d/0xc0 [ 70.770957][ T8963] ? netlink_unicast+0x710/0x710 [ 70.776082][ T8963] sock_sendmsg+0xd7/0x130 [ 70.780487][ T8963] ___sys_sendmsg+0x803/0x920 [ 70.785182][ T8963] ? copy_msghdr_from_user+0x440/0x440 [ 70.790663][ T8963] ? __kasan_check_read+0x11/0x20 [ 70.795684][ T8963] ? __fget+0x384/0x560 [ 70.799828][ T8963] ? ksys_dup3+0x3e0/0x3e0 [ 70.804248][ T8963] ? __fget_light+0x1a9/0x230 [ 70.808937][ T8963] ? __fdget+0x1b/0x20 [ 70.813022][ T8963] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 70.819379][ T8963] __sys_sendmsg+0x105/0x1d0 [ 70.824321][ T8963] ? __sys_sendmsg_sock+0xd0/0xd0 [ 70.829338][ T8963] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 70.834795][ T8963] ? do_syscall_64+0x26/0x760 [ 70.839465][ T8963] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.845527][ T8963] ? do_syscall_64+0x26/0x760 [ 70.850295][ T8963] __x64_sys_sendmsg+0x78/0xb0 [ 70.855045][ T8963] do_syscall_64+0xfa/0x760 [ 70.859533][ T8963] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.865406][ T8963] RIP: 0033:0x4598e9 [ 70.869311][ T8963] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 70.888904][ T8963] RSP: 002b:00007f832198cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 70.897302][ T8963] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 [ 70.905259][ T8963] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 70.913218][ T8963] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 70.921218][ T8963] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f832198d6d4 [ 70.929189][ T8963] R13: 00000000004c77fb R14: 00000000004dd098 R15: 00000000ffffffff [ 70.937359][ T8963] Modules linked in: [ 70.941248][ T8963] CR2: 0000000000000000 [ 70.947260][ T8963] ---[ end trace 9a41673ba3f06d90 ]--- [ 70.952879][ T8963] RIP: 0010:0x0 [ 70.956482][ T8963] Code: Bad RIP value. [ 70.961396][ T8963] RSP: 0018:ffff8880956ef4d8 EFLAGS: 00010246 [ 70.967743][ T8963] RAX: dffffc0000000000 RBX: ffffffff884a25a0 RCX: ffffffff85b92086 [ 70.975767][ T8963] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808db6f000 [ 70.984120][ T8963] RBP: ffff8880956ef5d0 R08: ffff88809ede8680 R09: ffff8880956ef658 [ 70.992265][ T8963] R10: ffffed1012added9 R11: ffff8880956ef6cf R12: ffff88808db6f000 [ 71.000291][ T8963] R13: 0000000000000001 R14: ffff8880956ef5a8 R15: ffffffff884a25a0 [ 71.008389][ T8963] FS: 00007f832198d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 71.017497][ T8963] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.024129][ T8963] CR2: ffffffffffffffd6 CR3: 00000000921c9000 CR4: 00000000001406f0 [ 71.032419][ T8963] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.040916][ T8963] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.049046][ T8963] Kernel panic - not syncing: Fatal exception [ 71.056592][ T8963] Kernel Offset: disabled [ 71.061085][ T8963] Rebooting in 86400 seconds..