[ 5.674987][ T24] audit: type=1400 audit(1638828866.511:69): avc: denied { open } for pid=1563 comm="getty" path="/run/utmp" dev="tmpfs" ino=2 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 5.678196][ T24] audit: type=1400 audit(1638828866.511:70): avc: denied { lock } for pid=1563 comm="getty" path="/run/utmp" dev="tmpfs" ino=2 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 5.682150][ T24] audit: type=1400 audit(1638828866.511:71): avc: denied { read } for pid=1563 comm="getty" name="log" dev="sda1" ino=1125 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 syzkaller syzkaller login: [ 12.300539][ T24] audit: type=1400 audit(1638828873.141:72): avc: denied { transition } for pid=1634 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.305116][ T24] audit: type=1400 audit(1638828873.151:73): avc: denied { write } for pid=1634 comm="sh" path="pipe:[14469]" dev="pipefs" ino=14469 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 13.064586][ T1635] sshd (1635) used greatest stack depth: 11448 bytes left Warning: Permanently added '10.128.10.37' (ECDSA) to the list of known hosts. 2021/12/06 22:14:39 fuzzer started 2021/12/06 22:14:39 connecting to host at 10.128.0.163:37837 2021/12/06 22:14:39 checking machine... 2021/12/06 22:14:39 checking revisions... 2021/12/06 22:14:39 testing simple program... [ 18.944006][ T24] audit: type=1400 audit(1638828879.791:74): avc: denied { getattr } for pid=1795 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 18.957935][ T1804] cgroup: Unknown subsys name 'net' [ 18.967599][ T24] audit: type=1400 audit(1638828879.791:75): avc: denied { read } for pid=1795 comm="syz-fuzzer" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 18.993763][ T24] audit: type=1400 audit(1638828879.791:76): avc: denied { open } for pid=1795 comm="syz-fuzzer" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 18.993903][ T1804] cgroup: Unknown subsys name 'devices' [ 19.016927][ T24] audit: type=1400 audit(1638828879.791:77): avc: denied { mounton } for pid=1804 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1136 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 19.022711][ T1804] cgroup: Unknown subsys name 'blkio' [ 19.045109][ T24] audit: type=1400 audit(1638828879.791:78): avc: denied { mount } for pid=1804 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 19.072806][ T24] audit: type=1400 audit(1638828879.821:79): avc: denied { unmount } for pid=1804 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 19.144847][ T1804] cgroup: Unknown subsys name 'hugetlb' [ 19.150863][ T1804] cgroup: Unknown subsys name 'rlimit' [ 19.247948][ T24] audit: type=1400 audit(1638828880.091:80): avc: denied { execmem } for pid=1805 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.267379][ T24] audit: type=1400 audit(1638828880.091:81): avc: denied { mounton } for pid=1806 comm="syz-executor.0" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 19.288878][ T24] audit: type=1400 audit(1638828880.091:82): avc: denied { module_request } for pid=1806 comm="syz-executor.0" kmod="netdev-nr0" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 19.313150][ T24] audit: type=1400 audit(1638828880.121:83): avc: denied { sys_module } for pid=1806 comm="syz-executor.0" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 19.352583][ T1806] chnl_net:caif_netlink_parms(): no params data found [ 19.381748][ T1806] bridge0: port 1(bridge_slave_0) entered blocking state [ 19.388783][ T1806] bridge0: port 1(bridge_slave_0) entered disabled state [ 19.396339][ T1806] device bridge_slave_0 entered promiscuous mode [ 19.403423][ T1806] bridge0: port 2(bridge_slave_1) entered blocking state [ 19.410462][ T1806] bridge0: port 2(bridge_slave_1) entered disabled state [ 19.418480][ T1806] device bridge_slave_1 entered promiscuous mode [ 19.433012][ T1806] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 19.443303][ T1806] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 19.459884][ T1806] team0: Port device team_slave_0 added [ 19.466019][ T1806] team0: Port device team_slave_1 added [ 19.480090][ T1806] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 19.487195][ T1806] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 19.513082][ T1806] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 19.524247][ T1806] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 19.531214][ T1806] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 19.557230][ T1806] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 19.577183][ T1806] device hsr_slave_0 entered promiscuous mode [ 19.583660][ T1806] device hsr_slave_1 entered promiscuous mode [ 19.632770][ T1806] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 19.641346][ T1806] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 19.649438][ T1806] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 19.658147][ T1806] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 19.670401][ T1806] bridge0: port 2(bridge_slave_1) entered blocking state [ 19.677442][ T1806] bridge0: port 2(bridge_slave_1) entered forwarding state [ 19.684782][ T1806] bridge0: port 1(bridge_slave_0) entered blocking state [ 19.691847][ T1806] bridge0: port 1(bridge_slave_0) entered forwarding state [ 19.715737][ T1806] 8021q: adding VLAN 0 to HW filter on device bond0 [ 19.725861][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 19.734208][ T756] bridge0: port 1(bridge_slave_0) entered disabled state [ 19.742066][ T756] bridge0: port 2(bridge_slave_1) entered disabled state [ 19.750357][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 19.759728][ T1806] 8021q: adding VLAN 0 to HW filter on device team0 [ 19.768384][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 19.776680][ T75] bridge0: port 1(bridge_slave_0) entered blocking state [ 19.783682][ T75] bridge0: port 1(bridge_slave_0) entered forwarding state [ 19.800025][ T1806] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 19.810414][ T1806] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 19.822716][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 19.831328][ T75] bridge0: port 2(bridge_slave_1) entered blocking state [ 19.838375][ T75] bridge0: port 2(bridge_slave_1) entered forwarding state [ 19.847146][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 19.855711][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 19.864159][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 19.872558][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 19.880714][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 19.888232][ T75] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 19.901667][ T1806] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 19.909156][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 19.916600][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 19.928693][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 19.967060][ T1806] device veth0_vlan entered promiscuous mode [ 19.974192][ T7] ================================================================== [ 19.974336][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 19.982275][ T7] BUG: KCSAN: data-race in prandom_seed / prandom_u32 [ 19.990925][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 19.996622][ T7] [ 19.996628][ T7] read to 0xffff888237c28450 of 8 bytes by task 1821 on cpu 1: [ 19.996641][ T7] prandom_seed+0xd5/0x270 [ 20.004300][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 20.006149][ T7] addrconf_dad_work+0x27a/0x1170 [ 20.015720][ T1806] device veth1_vlan entered promiscuous mode [ 20.018086][ T7] process_one_work+0x3fc/0x980 [ 20.026381][ T1821] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 20.030673][ T7] worker_thread+0x616/0xa70 [ 20.030698][ T7] kthread+0x2c7/0x2e0 [ 20.030714][ T7] ret_from_fork+0x1f/0x30 [ 20.030732][ T7] [ 20.030737][ T7] write to 0xffff888237c28450 of 8 bytes by task 7 on cpu 0: [ 20.030749][ T7] prandom_u32+0x11f/0x230 [ 20.030770][ T7] mld_ifc_work+0x6eb/0x810 [ 20.030788][ T7] process_one_work+0x3fc/0x980 [ 20.030807][ T7] worker_thread+0x616/0xa70 [ 20.030825][ T7] kthread+0x2c7/0x2e0 [ 20.042115][ T1806] device veth0_macvtap entered promiscuous mode [ 20.042170][ T7] ret_from_fork+0x1f/0x30 [ 20.051170][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 20.054602][ T7] [ 20.054605][ T7] value changed: 0x87c9ae1c824e00f0 -> 0x2ce518c7a4ed9810 [ 20.054615][ T7] [ 20.054618][ T7] Reported by Kernel Concurrency Sanitizer on: [ 20.054624][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.16.0-rc4-syzkaller #0 [ 20.059446][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 20.063176][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.066263][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 20.072993][ T7] Workqueue: mld mld_ifc_work [ 20.078610][ T1806] device veth1_macvtap entered promiscuous mode [ 20.081956][ T7] [ 20.081961][ T7] ================================================================== [ 20.092802][ T1806] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 20.195441][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 20.207606][ T1806] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 20.215379][ T756] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 20.224778][ T1806] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 20.233688][ T1806] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 20.242884][ T1806] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 20.251923][ T1806] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 2021/12/06 22:14:41 building call list... [ 20.340741][ T8] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 22.565218][ T1801] can: request_module (can-proto-0) failed. [ 22.576564][ T1801] can: request_module (can-proto-0) failed. [ 22.588216][ T1801] can: request_module (can-proto-0) failed.