[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.371857][ T23] kauditd_printk_skb: 18 callbacks suppressed [ 35.371864][ T23] audit: type=1400 audit(1563759835.415:35): avc: denied { map } for pid=6923 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 '10.128.1.60' (ECDSA) to the list of known hosts. [ 60.014976][ T23] audit: type=1400 audit(1563759860.055:36): avc: denied { map } for pid=6936 comm="syz-executor567" path="/root/syz-executor567827321" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 66.839450][ T6937] IPVS: ftp: loaded support on port[0] = 21 [ 66.858869][ T6937] chnl_net:caif_netlink_parms(): no params data found [ 66.870637][ T6937] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.877721][ T6937] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.884941][ T6937] device bridge_slave_0 entered promiscuous mode [ 66.892001][ T6937] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.899069][ T6937] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.906254][ T6937] device bridge_slave_1 entered promiscuous mode [ 66.915271][ T6937] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.924644][ T6937] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.936065][ T6937] team0: Port device team_slave_0 added [ 66.942058][ T6937] team0: Port device team_slave_1 added [ 66.968124][ T6937] device hsr_slave_0 entered promiscuous mode [ 67.007542][ T6937] device hsr_slave_1 entered promiscuous mode [ 67.039585][ T6937] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.046716][ T6937] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.053952][ T6937] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.060973][ T6937] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.075375][ T6937] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.083481][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.091042][ T3053] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.098627][ T3053] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.105846][ T3053] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 67.114846][ T6937] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.122669][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.130890][ T16] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.137943][ T16] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.147742][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.155865][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.162898][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.173573][ T6937] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.184012][ T6937] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.195112][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready executing program [ 67.203163][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.211171][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.219055][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.227124][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.234383][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.244069][ T6937] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 67.260569][ T6937] FAULT_INJECTION: forcing a failure. [ 67.260569][ T6937] name failslab, interval 1, probability 0, space 0, times 1 [ 67.273168][ T6937] CPU: 0 PID: 6937 Comm: syz-executor567 Not tainted 5.2.0+ #73 [ 67.280781][ T6937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.290809][ T6937] Call Trace: [ 67.294072][ T6937] dump_stack+0xaa/0xd6 [ 67.298203][ T6937] should_fail.cold+0x3c/0x49 [ 67.302845][ T6937] __should_failslab+0x65/0xa0 [ 67.307578][ T6937] should_failslab+0x9/0x14 [ 67.312088][ T6937] kmem_cache_alloc_trace+0x2d/0x280 [ 67.317342][ T6937] device_add+0x65b/0x890 [ 67.321688][ T6937] netdev_register_kobject+0xa6/0x1b0 [ 67.327028][ T6937] register_netdevice+0x397/0x600 [ 67.332073][ T6937] veth_newlink+0x1ee/0x420 [ 67.336570][ T6937] ? veth_open+0x90/0x90 [ 67.340784][ T6937] __rtnl_newlink+0x892/0xb30 [ 67.345432][ T6937] ? tomoyo_merge_path_acl+0x39/0x60 [ 67.350692][ T6937] ? tomoyo_same_path_acl+0x60/0x60 [ 67.355860][ T6937] ? tomoyo_update_domain+0x9f/0x1f0 [ 67.361113][ T6937] ? tomoyo_same_path_acl+0x60/0x60 [ 67.366282][ T6937] ? tomoyo_write_misc+0x130/0x130 [ 67.371414][ T6937] ? tomoyo_put_name_union+0x3e/0x50 [ 67.376671][ T6937] ? tomoyo_supervisor+0x1cc/0x800 [ 67.381756][ T6937] ? call_rcu+0xb/0x10 [ 67.385902][ T6937] ? put_object+0x28/0x30 [ 67.390197][ T6937] ? __delete_object+0x41/0x50 [ 67.394923][ T6937] ? delete_object_full+0x18/0x20 [ 67.399911][ T6937] ? kmemleak_free+0x21/0x40 [ 67.404475][ T6937] ? ___cache_free+0xb9/0x340 [ 67.409123][ T6937] ? __rtnl_newlink+0xb30/0xb30 [ 67.413938][ T6937] rtnl_newlink+0x4e/0x80 [ 67.418235][ T6937] rtnetlink_rcv_msg+0x36e/0x480 [ 67.423198][ T6937] ? rtnl_calcit.isra.0+0x160/0x160 [ 67.428366][ T6937] netlink_rcv_skb+0x61/0x170 [ 67.433010][ T6937] rtnetlink_rcv+0x1d/0x30 [ 67.437395][ T6937] netlink_unicast+0x1ec/0x2d0 [ 67.442125][ T6937] netlink_sendmsg+0x270/0x480 [ 67.446860][ T6937] sock_sendmsg+0x54/0x70 [ 67.451161][ T6937] ___sys_sendmsg+0x393/0x3c0 [ 67.455862][ T6937] ? _parse_integer+0xbf/0xe0 [ 67.460518][ T6937] ? _kstrtoull+0x92/0xd0 [ 67.464819][ T6937] ? kstrtouint+0x76/0xa0 [ 67.469202][ T6937] ? kstrtouint_from_user+0x7f/0xb0 [ 67.474401][ T6937] ? selinux_file_permission+0x30/0x1f0 [ 67.479921][ T6937] ? __fget_light+0x70/0xb0 [ 67.484512][ T6937] ? __fdget+0x1b/0x20 [ 67.488557][ T6937] ? sockfd_lookup_light+0x6c/0xb0 [ 67.493683][ T6937] __sys_sendmsg+0x80/0xf0 [ 67.498150][ T6937] __x64_sys_sendmsg+0x23/0x30 [ 67.502982][ T6937] do_syscall_64+0x76/0x1a0 [ 67.507461][ T6937] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.513321][ T6937] RIP: 0033:0x442ef9 [ 67.517183][ T6937] Code: 44 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 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 fb 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.536801][ T6937] RSP: 002b:00007fff05808fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 67.545180][ T6937] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000442ef9 [ 67.553116][ T6937] RDX: 0000000000000000 RSI: 0000000020000580 RDI: 0000000000000003 [ 67.561102][ T6937] RBP: 0000000000000003 R08: 0000000000000002 R09: 0000000000003631 [ 67.569046][ T6937] R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff [ 67.576980][ T6937] R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 [ 68.887828][ T7] device bridge_slave_1 left promiscuous mode [ 68.893973][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.917867][ T7] device bridge_slave_0 left promiscuous mode [ 68.923967][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.067669][ T7] device hsr_slave_0 left promiscuous mode [ 69.117527][ T7] device hsr_slave_1 left promiscuous mode [ 69.178878][ T7] team0 (unregistering): Port device team_slave_1 removed [ 69.186726][ T7] team0 (unregistering): Port device team_slave_0 removed [ 69.194485][ T7] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 69.258239][ T7] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 69.301384][ T7] bond0 (unregistering): Released all slaves [ 73.439387][ T6936] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888122b4c440 (size 32): comm "syz-executor567", pid 6937, jiffies 4294943998 (age 8.150s) hex dump (first 32 bytes): 76 65 74 68 32 00 61 73 6b 2f 36 39 33 37 00 6d veth2.ask/6937.m 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0............... backtrace: [<0000000055144884>] __kmalloc_track_caller+0x169/0x2d0 [<0000000085312d63>] kstrdup+0x3a/0x70 [<000000006a60d434>] kstrdup_const+0x48/0x60 [<00000000c2b1e0f1>] kvasprintf_const+0x7e/0xe0 [<000000008dddac5d>] kobject_set_name_vargs+0x40/0xe0 [<000000007e54bd10>] dev_set_name+0x63/0x90 [<00000000f4d82c8c>] netdev_register_kobject+0x5a/0x1b0 [<00000000075c08f3>] register_netdevice+0x397/0x600 [<000000002683c18b>] veth_newlink+0x1ee/0x420 [<000000005fa4eb75>] __rtnl_newlink+0x892/0xb30 [<000000008c86af9b>] rtnl_newlink+0x4e/0x80 [<00000000a6292747>] rtnetlink_rcv_msg+0x36e/0x480 [<00000000a6c9a3fb>] netlink_rcv_skb+0x61/0x170 [<000000006cd35339>] rtnetlink_rcv+0x1d/0x30 [<00000000bad0ecfe>] netlink_unicast+0x1ec/0x2d0 [<0000000060eb909d>] netlink_sendmsg+0x270/0x480