[ 71.296176][ T26] audit: type=1800 audit(1568631375.219:32): pid=10267 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 76.193508][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 76.193522][ T26] audit: type=1400 audit(1568631380.159:35): avc: denied { map } for pid=10443 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 Warning: Permanently added '10.128.0.228' (ECDSA) to the list of known hosts. [ 82.316779][ T26] audit: type=1400 audit(1568631386.279:36): avc: denied { map } for pid=10455 comm="syz-executor951" path="/root/syz-executor951022932" 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 [ 82.353194][T10456] IPVS: ftp: loaded support on port[0] = 21 [ 82.406361][T10456] chnl_net:caif_netlink_parms(): no params data found [ 82.427735][T10456] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.435026][T10456] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.442811][T10456] device bridge_slave_0 entered promiscuous mode [ 82.450175][T10456] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.457420][T10456] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.465120][T10456] device bridge_slave_1 entered promiscuous mode [ 82.478387][T10456] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.488883][T10456] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.504888][T10456] team0: Port device team_slave_0 added [ 82.512519][T10456] team0: Port device team_slave_1 added [ 82.590645][T10456] device hsr_slave_0 entered promiscuous mode [ 82.659425][T10456] device hsr_slave_1 entered promiscuous mode [ 82.704651][T10456] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.712067][T10456] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.719626][T10456] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.726680][T10456] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.752057][T10456] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.763568][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.782539][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.790538][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.798145][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 82.808584][T10456] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.818159][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.826906][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.834030][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.850242][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.858768][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.865876][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.874216][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.882777][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.892548][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.903720][T10456] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 82.914261][T10456] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 82.926760][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.935242][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.943544][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready executing program [ 82.958125][T10456] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.990304][T10456] netlink: 'syz-executor951': attribute type 1 has an invalid length. [ 82.998945][T10456] kasan: CONFIG_KASAN_INLINE enabled [ 83.004304][T10456] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 83.012396][T10456] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 83.019324][T10456] CPU: 0 PID: 10456 Comm: syz-executor951 Not tainted 5.3.0 #0 [ 83.026863][T10456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.036921][T10456] RIP: 0010:qdisc_put+0x25/0x90 [ 83.041847][T10456] Code: 00 00 00 00 00 55 48 89 e5 41 54 49 89 fc 53 e8 81 2f bf fb 49 8d 7c 24 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 54 41 8b 5c 24 10 31 ff 83 e3 01 [ 83.061552][T10456] RSP: 0018:ffff88808c6af480 EFLAGS: 00010202 [ 83.067606][T10456] RAX: dffffc0000000000 RBX: ffff88808bda8d80 RCX: 1ffffffff134b5fe [ 83.076512][T10456] RDX: 0000000000000002 RSI: ffffffff85b3557f RDI: 0000000000000010 [ 83.084466][T10456] RBP: ffff88808c6af490 R08: ffff8880a3ab20c0 R09: fffffbfff134afc0 [ 83.092415][T10456] R10: fffffbfff134afbf R11: ffffffff89a57dff R12: 0000000000000000 [ 83.100378][T10456] R13: ffff88808bda8d80 R14: ffff8880a39b6b40 R15: ffff88808bda8dbc [ 83.108334][T10456] FS: 0000555556bab880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 83.117245][T10456] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.123810][T10456] CR2: 0000000020000610 CR3: 00000000a82eb000 CR4: 00000000001406f0 [ 83.131782][T10456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.139780][T10456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.147739][T10456] Call Trace: [ 83.151027][T10456] dsmark_destroy+0x63/0xd0 [ 83.155527][T10456] ? dsmark_peek+0x90/0x90 [ 83.159937][T10456] qdisc_create+0xbc6/0x1210 [ 83.164518][T10456] ? tc_get_qdisc+0xc10/0xc10 [ 83.169201][T10456] ? __nla_parse+0x43/0x60 [ 83.173601][T10456] tc_modify_qdisc+0x524/0x1c50 [ 83.178432][T10456] ? trace_hardirqs_on+0x67/0x240 [ 83.183446][T10456] ? qdisc_create+0x1210/0x1210 [ 83.188280][T10456] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 83.193387][T10456] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.200141][T10456] ? qdisc_create+0x1210/0x1210 [ 83.204984][T10456] rtnetlink_rcv_msg+0x463/0xb00 [ 83.209900][T10456] ? rtnetlink_put_metrics+0x580/0x580 [ 83.215350][T10456] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 83.220618][T10456] ? __copy_skb_header+0x250/0x550 [ 83.225729][T10456] netlink_rcv_skb+0x177/0x450 [ 83.230488][T10456] ? rtnetlink_put_metrics+0x580/0x580 [ 83.235943][T10456] ? netlink_ack+0xb30/0xb30 [ 83.240524][T10456] ? netlink_deliver_tap+0x254/0xbf0 [ 83.245792][T10456] rtnetlink_rcv+0x1d/0x30 [ 83.250187][T10456] netlink_unicast+0x531/0x710 [ 83.254944][T10456] ? netlink_attachskb+0x7c0/0x7c0 [ 83.260042][T10456] ? _copy_from_iter_full+0x25d/0x8a0 [ 83.265421][T10456] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.271646][T10456] netlink_sendmsg+0x8a5/0xd60 [ 83.276394][T10456] ? netlink_unicast+0x710/0x710 [ 83.281336][T10456] ? tomoyo_socket_sendmsg+0x26/0x30 [ 83.286599][T10456] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.292817][T10456] ? security_socket_sendmsg+0x8d/0xc0 [ 83.298259][T10456] ? netlink_unicast+0x710/0x710 [ 83.303188][T10456] sock_sendmsg+0xd7/0x130 [ 83.307585][T10456] ___sys_sendmsg+0x803/0x920 [ 83.312242][T10456] ? copy_msghdr_from_user+0x440/0x440 [ 83.318723][T10456] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 83.324956][T10456] ? tomoyo_path_number_perm+0x263/0x520 [ 83.330596][T10456] ? sock_ioctl+0x489/0x780 [ 83.335087][T10456] ? dlci_ioctl_set+0x40/0x40 [ 83.339751][T10456] ? ___might_sleep+0x163/0x280 [ 83.344597][T10456] ? dlci_ioctl_set+0x40/0x40 [ 83.349268][T10456] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.355518][T10456] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.361923][T10456] ? __fget_light+0x1a9/0x230 [ 83.366581][T10456] ? __fdget+0x1b/0x20 [ 83.370629][T10456] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.376924][T10456] __sys_sendmsg+0x105/0x1d0 [ 83.381533][T10456] ? __sys_sendmsg_sock+0xd0/0xd0 [ 83.386545][T10456] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 83.392603][T10456] __x64_sys_sendmsg+0x78/0xb0 [ 83.397441][T10456] do_syscall_64+0xfd/0x6a0 [ 83.401933][T10456] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 83.407807][T10456] RIP: 0033:0x441b19 [ 83.411687][T10456] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 7b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 83.431271][T10456] RSP: 002b:00007fff04225c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 83.441657][T10456] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b19 [ 83.449608][T10456] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 83.457556][T10456] RBP: 00007fff04225c30 R08: 0000000001bbbbbb R09: 0000000001bbbbbb [ 83.468210][T10456] R10: 0000000001bbbbbb R11: 0000000000000246 R12: 0000000000000000 [ 83.476168][T10456] R13: 00000000004030b0 R14: 0000000000000000 R15: 0000000000000000 [ 83.484125][T10456] Modules linked in: [ 83.488915][T10456] ---[ end trace f9086daed5fedc5f ]--- [ 83.494607][T10456] RIP: 0010:qdisc_put+0x25/0x90 [ 83.499501][T10456] Code: 00 00 00 00 00 55 48 89 e5 41 54 49 89 fc 53 e8 81 2f bf fb 49 8d 7c 24 10 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 04 3c 03 7e 54 41 8b 5c 24 10 31 ff 83 e3 01 [ 83.519125][T10456] RSP: 0018:ffff88808c6af480 EFLAGS: 00010202 [ 83.525289][T10456] RAX: dffffc0000000000 RBX: ffff88808bda8d80 RCX: 1ffffffff134b5fe [ 83.533293][T10456] RDX: 0000000000000002 RSI: ffffffff85b3557f RDI: 0000000000000010 [ 83.542150][T10456] RBP: ffff88808c6af490 R08: ffff8880a3ab20c0 R09: fffffbfff134afc0 [ 83.550138][T10456] R10: fffffbfff134afbf R11: ffffffff89a57dff R12: 0000000000000000 [ 83.558113][T10456] R13: ffff88808bda8d80 R14: ffff8880a39b6b40 R15: ffff88808bda8dbc [ 83.566125][T10456] FS: 0000555556bab880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 83.575076][T10456] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.581676][T10456] CR2: 0000000020000610 CR3: 00000000a82eb000 CR4: 00000000001406f0 [ 83.589660][T10456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.597618][T10456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.605609][T10456] Kernel panic - not syncing: Fatal exception [ 83.613352][T10456] Kernel Offset: disabled [ 83.617696][T10456] Rebooting in 86400 seconds..