[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 66.027896][ T26] audit: type=1800 audit(1567788139.704:33): pid=9892 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 69.964383][ T26] kauditd_printk_skb: 1 callbacks suppressed [ 69.964396][ T26] audit: type=1400 audit(1567788143.644:35): avc: denied { map } for pid=10070 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 '10.128.10.62' (ECDSA) to the list of known hosts. [ 76.140601][ T26] audit: type=1400 audit(1567788149.824:36): avc: denied { map } for pid=10082 comm="syz-executor117" path="/root/syz-executor117031438" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 76.170023][T10083] IPVS: ftp: loaded support on port[0] = 21 [ 76.210387][T10083] chnl_net:caif_netlink_parms(): no params data found [ 76.230675][T10083] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.237744][T10083] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.245561][T10083] device bridge_slave_0 entered promiscuous mode [ 76.253152][T10083] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.260272][T10083] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.267693][T10083] device bridge_slave_1 entered promiscuous mode [ 76.280970][T10083] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.290910][T10083] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.305820][T10083] team0: Port device team_slave_0 added [ 76.312658][T10083] team0: Port device team_slave_1 added [ 76.370947][T10083] device hsr_slave_0 entered promiscuous mode [ 76.409644][T10083] device hsr_slave_1 entered promiscuous mode [ 76.454238][T10083] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.461404][T10083] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.468647][T10083] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.475709][T10083] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.500311][T10083] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.511480][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.519690][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.526928][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.534591][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.544152][T10083] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.553016][ T2870] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.561451][ T2870] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.568464][ T2870] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.586621][T10083] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 76.597120][T10083] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 76.608537][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.617151][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.624201][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.631942][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.640300][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready executing program [ 76.648400][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.656529][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.664575][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.672007][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.686516][T10083] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.715715][T10083] FAULT_INJECTION: forcing a failure. [ 76.715715][T10083] name failslab, interval 1, probability 0, space 0, times 1 [ 76.728414][T10083] CPU: 1 PID: 10083 Comm: syz-executor117 Not tainted 5.3.0-rc7+ #0 [ 76.736367][T10083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.746523][T10083] Call Trace: [ 76.749783][T10083] dump_stack+0x172/0x1f0 [ 76.754083][T10083] should_fail.cold+0xa/0x15 [ 76.758642][T10083] ? qdisc_alloc+0xbb/0xa90 [ 76.763134][T10083] ? fault_create_debugfs_attr+0x180/0x180 [ 76.768909][T10083] ? page_to_nid.part.0+0x20/0x20 [ 76.773901][T10083] ? ___might_sleep+0x163/0x280 [ 76.778723][T10083] __should_failslab+0x121/0x190 [ 76.783630][T10083] should_failslab+0x9/0x14 [ 76.788101][T10083] kmem_cache_alloc_trace+0x2d3/0x790 [ 76.793445][T10083] ? debug_mutex_init+0x2d/0x5a [ 76.798270][T10083] tcf_block_get_ext+0x153/0x1610 [ 76.803266][T10083] tcf_block_get+0xb9/0x100 [ 76.807746][T10083] ? tcf_block_get_ext+0x1610/0x1610 [ 76.813001][T10083] ? walker_check_empty+0x70/0x70 [ 76.817991][T10083] ? lockdep_init_map+0x1be/0x6d0 [ 76.823016][T10083] ? dsmark_dump.cold+0x40/0x40 [ 76.827861][T10083] ? __kasan_check_write+0x14/0x20 [ 76.832940][T10083] sfb_init+0x36/0xa7 [ 76.836891][T10083] ? sfb_change+0xe90/0xe90 [ 76.841362][T10083] qdisc_create+0x4ee/0x1210 [ 76.845920][T10083] ? tc_get_qdisc+0xc10/0xc10 [ 76.850569][T10083] ? __nla_parse+0x43/0x60 [ 76.854953][T10083] tc_modify_qdisc+0x524/0x1c50 [ 76.859776][T10083] ? trace_hardirqs_on+0x67/0x240 [ 76.864770][T10083] ? qdisc_create+0x1210/0x1210 [ 76.869595][T10083] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 76.874677][T10083] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 76.880973][T10083] ? qdisc_create+0x1210/0x1210 [ 76.885796][T10083] rtnetlink_rcv_msg+0x463/0xb00 [ 76.890701][T10083] ? rtnetlink_put_metrics+0x580/0x580 [ 76.896123][T10083] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 76.901375][T10083] ? __copy_skb_header+0x250/0x550 [ 76.906460][T10083] netlink_rcv_skb+0x177/0x450 [ 76.911191][T10083] ? rtnetlink_put_metrics+0x580/0x580 [ 76.916640][T10083] ? netlink_ack+0xb30/0xb30 [ 76.921197][T10083] ? netlink_deliver_tap+0x254/0xbf0 [ 76.926467][T10083] rtnetlink_rcv+0x1d/0x30 [ 76.930855][T10083] netlink_unicast+0x531/0x710 [ 76.935592][T10083] ? netlink_attachskb+0x7c0/0x7c0 [ 76.940684][T10083] ? _copy_from_iter_full+0x25d/0x8a0 [ 76.946025][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.952327][T10083] netlink_sendmsg+0x8a5/0xd60 [ 76.957058][T10083] ? netlink_unicast+0x710/0x710 [ 76.961965][T10083] ? tomoyo_socket_sendmsg+0x26/0x30 [ 76.967217][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 76.973425][T10083] ? security_socket_sendmsg+0x8d/0xc0 [ 76.978853][T10083] ? netlink_unicast+0x710/0x710 [ 76.983761][T10083] sock_sendmsg+0xd7/0x130 [ 76.988147][T10083] ___sys_sendmsg+0x803/0x920 [ 76.992806][T10083] ? copy_msghdr_from_user+0x440/0x440 [ 76.998238][T10083] ? __kasan_check_read+0x11/0x20 [ 77.003232][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.009447][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.015659][T10083] ? refcount_sub_and_test_checked+0x154/0x200 [ 77.021783][T10083] ? refcount_dec_not_one+0x1f0/0x1f0 [ 77.027125][T10083] ? vfs_write+0x34c/0x5d0 [ 77.031513][T10083] ? __kasan_check_read+0x11/0x20 [ 77.036508][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.042718][T10083] ? __fget_light+0x1a9/0x230 [ 77.047363][T10083] ? __fdget+0x1b/0x20 [ 77.051400][T10083] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.057610][T10083] __sys_sendmsg+0x105/0x1d0 [ 77.062184][T10083] ? __sys_sendmsg_sock+0xd0/0xd0 [ 77.067183][T10083] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 77.073222][T10083] __x64_sys_sendmsg+0x78/0xb0 [ 77.077956][T10083] do_syscall_64+0xfd/0x6a0 [ 77.082432][T10083] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.088292][T10083] RIP: 0033:0x441c89 [ 77.092157][T10083] 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 [ 77.111727][T10083] RSP: 002b:00007fff75041d38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.120102][T10083] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441c89 [ 77.128042][T10083] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 77.135986][T10083] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000001bbbbbb [ 77.143926][T10083] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 77.151877][T10083] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 77.161689][T10083] kasan: CONFIG_KASAN_INLINE enabled [ 77.166961][T10083] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 77.175427][T10083] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 77.182359][T10083] CPU: 1 PID: 10083 Comm: syz-executor117 Not tainted 5.3.0-rc7+ #0 [ 77.190302][T10083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.200338][T10083] RIP: 0010:qdisc_put+0x25/0x90 [ 77.205156][T10083] Code: 00 00 00 00 00 55 48 89 e5 41 54 49 89 fc 53 e8 c1 52 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 [ 77.224728][T10083] RSP: 0018:ffff8880a8c5f488 EFLAGS: 00010202 [ 77.230764][T10083] RAX: dffffc0000000000 RBX: ffff8880a787adc0 RCX: ffffffff85b49e8a [ 77.238715][T10083] RDX: 0000000000000002 RSI: ffffffff85b3228f RDI: 0000000000000010 [ 77.246660][T10083] RBP: ffff8880a8c5f498 R08: ffff888091cf20c0 R09: fffffbfff134af90 [ 77.254616][T10083] R10: fffffbfff134af8f R11: ffffffff89a57c7f R12: 0000000000000000 [ 77.262558][T10083] R13: ffff8880a787adc0 R14: ffff8880a78f6e00 R15: ffff8880a787adfc [ 77.270500][T10083] FS: 00005555567e7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 77.279397][T10083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.285950][T10083] CR2: 0000000020000610 CR3: 0000000090fdc000 CR4: 00000000001406e0 [ 77.293893][T10083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.301835][T10083] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.309863][T10083] Call Trace: [ 77.313126][T10083] sfb_destroy+0x61/0x80 [ 77.317378][T10083] ? sfb_zero_all_buckets+0x20/0x20 [ 77.322549][T10083] qdisc_create+0xbc6/0x1210 [ 77.327108][T10083] ? tc_get_qdisc+0xc10/0xc10 [ 77.331764][T10083] ? __nla_parse+0x43/0x60 [ 77.336152][T10083] tc_modify_qdisc+0x524/0x1c50 [ 77.340973][T10083] ? trace_hardirqs_on+0x67/0x240 [ 77.345968][T10083] ? qdisc_create+0x1210/0x1210 [ 77.350795][T10083] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 77.355877][T10083] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.362098][T10083] ? qdisc_create+0x1210/0x1210 [ 77.366918][T10083] rtnetlink_rcv_msg+0x463/0xb00 [ 77.371824][T10083] ? rtnetlink_put_metrics+0x580/0x580 [ 77.377458][T10083] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 77.382715][T10083] ? __copy_skb_header+0x250/0x550 [ 77.387804][T10083] netlink_rcv_skb+0x177/0x450 [ 77.392539][T10083] ? rtnetlink_put_metrics+0x580/0x580 [ 77.397968][T10083] ? netlink_ack+0xb30/0xb30 [ 77.402533][T10083] ? netlink_deliver_tap+0x254/0xbf0 [ 77.407811][T10083] rtnetlink_rcv+0x1d/0x30 [ 77.412200][T10083] netlink_unicast+0x531/0x710 [ 77.416938][T10083] ? netlink_attachskb+0x7c0/0x7c0 [ 77.422025][T10083] ? _copy_from_iter_full+0x25d/0x8a0 [ 77.427370][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.433582][T10083] netlink_sendmsg+0x8a5/0xd60 [ 77.438317][T10083] ? netlink_unicast+0x710/0x710 [ 77.443226][T10083] ? tomoyo_socket_sendmsg+0x26/0x30 [ 77.448483][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.454705][T10083] ? security_socket_sendmsg+0x8d/0xc0 [ 77.460138][T10083] ? netlink_unicast+0x710/0x710 [ 77.465047][T10083] sock_sendmsg+0xd7/0x130 [ 77.469523][T10083] ___sys_sendmsg+0x803/0x920 [ 77.474182][T10083] ? copy_msghdr_from_user+0x440/0x440 [ 77.479631][T10083] ? __kasan_check_read+0x11/0x20 [ 77.484647][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.490859][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.497069][T10083] ? refcount_sub_and_test_checked+0x154/0x200 [ 77.503194][T10083] ? refcount_dec_not_one+0x1f0/0x1f0 [ 77.508556][T10083] ? vfs_write+0x34c/0x5d0 [ 77.512942][T10083] ? __kasan_check_read+0x11/0x20 [ 77.517938][T10083] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.524146][T10083] ? __fget_light+0x1a9/0x230 [ 77.528791][T10083] ? __fdget+0x1b/0x20 [ 77.532830][T10083] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.539057][T10083] __sys_sendmsg+0x105/0x1d0 [ 77.543617][T10083] ? __sys_sendmsg_sock+0xd0/0xd0 [ 77.548614][T10083] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 77.554651][T10083] __x64_sys_sendmsg+0x78/0xb0 [ 77.559386][T10083] do_syscall_64+0xfd/0x6a0 [ 77.563862][T10083] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.569726][T10083] RIP: 0033:0x441c89 [ 77.573595][T10083] 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 [ 77.593168][T10083] RSP: 002b:00007fff75041d38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.601553][T10083] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441c89 [ 77.609496][T10083] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 77.617446][T10083] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000001bbbbbb [ 77.625386][T10083] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 77.633325][T10083] R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 [ 77.641269][T10083] Modules linked in: [ 77.646744][T10083] ---[ end trace f0858971f9d6a873 ]--- [ 77.652250][T10083] RIP: 0010:qdisc_put+0x25/0x90 [ 77.657077][T10083] Code: 00 00 00 00 00 55 48 89 e5 41 54 49 89 fc 53 e8 c1 52 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 [ 77.676819][T10083] RSP: 0018:ffff8880a8c5f488 EFLAGS: 00010202 [ 77.683166][T10083] RAX: dffffc0000000000 RBX: ffff8880a787adc0 RCX: ffffffff85b49e8a [ 77.691158][T10083] RDX: 0000000000000002 RSI: ffffffff85b3228f RDI: 0000000000000010 [ 77.699109][T10083] RBP: ffff8880a8c5f498 R08: ffff888091cf20c0 R09: fffffbfff134af90 [ 77.707110][T10083] R10: fffffbfff134af8f R11: ffffffff89a57c7f R12: 0000000000000000 [ 77.715076][T10083] R13: ffff8880a787adc0 R14: ffff8880a78f6e00 R15: ffff8880a787adfc [ 77.723059][T10083] FS: 00005555567e7880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 77.731979][T10083] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.738530][T10083] CR2: 0000000020000610 CR3: 0000000090fdc000 CR4: 00000000001406e0 [ 77.746492][T10083] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.754516][T10083] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.762519][T10083] Kernel panic - not syncing: Fatal exception [ 77.769724][T10083] Kernel Offset: disabled [ 77.774033][T10083] Rebooting in 86400 seconds..