[ 18.342178][ T27] audit: type=1400 audit(1707031656.036:81): avc: denied { read } for pid=2758 comm="syslogd" name="log" dev="sda1" ino=1915 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 Warning: Permanently added '10.128.1.55' (ED25519) to the list of known hosts. 2024/02/04 07:27:38 fuzzer started 2024/02/04 07:27:38 connecting to host at 10.128.0.163:40599 2024/02/04 07:27:38 checking machine... 2024/02/04 07:27:38 checking revisions... 2024/02/04 07:27:38 testing simple program... [ 21.193254][ T27] audit: type=1400 audit(1707031658.886:82): avc: denied { getattr } for pid=3066 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 [ 21.217737][ T27] audit: type=1400 audit(1707031658.886:83): avc: denied { read } for pid=3066 comm="syz-fuzzer" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 21.218093][ T3075] cgroup: Unknown subsys name 'net' [ 21.239836][ T27] audit: type=1400 audit(1707031658.886:84): avc: denied { open } for pid=3066 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 [ 21.269201][ T27] audit: type=1400 audit(1707031658.886:85): avc: denied { mounton } for pid=3075 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1926 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 21.293956][ T27] audit: type=1400 audit(1707031658.886:86): avc: denied { mount } for pid=3075 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 [ 21.316993][ T27] audit: type=1400 audit(1707031658.936:87): avc: denied { unmount } for pid=3075 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 21.463006][ T3075] cgroup: Unknown subsys name 'rlimit' [ 21.601734][ T3076] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 21.611010][ T27] audit: type=1400 audit(1707031659.296:88): avc: denied { relabelto } for pid=3076 comm="mkswap" name="swap-file" dev="sda1" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 21.637382][ T27] audit: type=1400 audit(1707031659.306:89): avc: denied { write } for pid=3076 comm="mkswap" path="/root/swap-file" dev="sda1" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 21.666353][ T27] audit: type=1400 audit(1707031659.356:90): avc: denied { read } for pid=3075 comm="syz-executor" name="swap-file" dev="sda1" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 21.671768][ T3075] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 21.693604][ T27] audit: type=1400 audit(1707031659.356:91): avc: denied { open } for pid=3075 comm="syz-executor" path="/root/swap-file" dev="sda1" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 21.894654][ T3078] chnl_net:caif_netlink_parms(): no params data found [ 21.926777][ T3078] bridge0: port 1(bridge_slave_0) entered blocking state [ 21.934410][ T3078] bridge0: port 1(bridge_slave_0) entered disabled state [ 21.942432][ T3078] bridge_slave_0: entered allmulticast mode [ 21.949115][ T3078] bridge_slave_0: entered promiscuous mode [ 21.956356][ T3078] bridge0: port 2(bridge_slave_1) entered blocking state [ 21.963711][ T3078] bridge0: port 2(bridge_slave_1) entered disabled state [ 21.971957][ T3078] bridge_slave_1: entered allmulticast mode [ 21.979093][ T3078] bridge_slave_1: entered promiscuous mode [ 21.993984][ T3078] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 22.004712][ T3078] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 22.023649][ T3078] team0: Port device team_slave_0 added [ 22.030388][ T3078] team0: Port device team_slave_1 added [ 22.046321][ T3078] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 22.053593][ T3078] 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. [ 22.080824][ T3078] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 22.092227][ T3078] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 22.099307][ T3078] 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. [ 22.127269][ T3078] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 22.150830][ T3078] hsr_slave_0: entered promiscuous mode [ 22.157416][ T3078] hsr_slave_1: entered promiscuous mode [ 22.214928][ T3078] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 22.223603][ T3078] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 22.232281][ T3078] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 22.241288][ T3078] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 22.255895][ T3078] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.263691][ T3078] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.273028][ T3078] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.280946][ T3078] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.309320][ T3078] 8021q: adding VLAN 0 to HW filter on device bond0 [ 22.322617][ T964] bridge0: port 1(bridge_slave_0) entered disabled state [ 22.331313][ T964] bridge0: port 2(bridge_slave_1) entered disabled state [ 22.344498][ T3078] 8021q: adding VLAN 0 to HW filter on device team0 [ 22.354974][ T3092] bridge0: port 1(bridge_slave_0) entered blocking state [ 22.362375][ T3092] bridge0: port 1(bridge_slave_0) entered forwarding state [ 22.374703][ T3092] bridge0: port 2(bridge_slave_1) entered blocking state [ 22.382445][ T3092] bridge0: port 2(bridge_slave_1) entered forwarding state [ 22.401369][ T3078] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 22.413240][ T3078] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 22.463617][ T3078] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 22.529841][ T3078] veth0_vlan: entered promiscuous mode [ 22.538329][ T3078] veth1_vlan: entered promiscuous mode [ 22.555019][ T3078] veth0_macvtap: entered promiscuous mode [ 22.562795][ T3078] veth1_macvtap: entered promiscuous mode [ 22.575022][ T3078] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 22.586448][ T3078] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 22.596355][ T3078] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 22.605320][ T3078] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 22.614924][ T3078] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 22.625523][ T3078] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 22.665320][ T3109] ================================================================== [ 22.673607][ T3109] BUG: KCSAN: data-race in exit_mm / mm_update_next_owner [ 22.681606][ T3109] [ 22.683923][ T3109] write to 0xffff88810120c5e0 of 8 bytes by task 3110 on cpu 0: [ 22.691887][ T3109] exit_mm+0x9b/0x180 [ 22.696052][ T3109] do_exit+0x585/0x16d0 [ 22.700329][ T3109] do_group_exit+0x101/0x150 [ 22.705487][ T3109] get_signal+0xf4e/0x10a0 [ 22.710706][ T3109] arch_do_signal_or_restart+0x95/0x4b0 [ 22.716637][ T3109] syscall_exit_to_user_mode+0x58/0x130 [ 22.723175][ T3109] do_syscall_64+0xda/0x1d0 [ 22.728549][ T3109] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 22.734817][ T3109] [ 22.737140][ T3109] read to 0xffff88810120c5e0 of 8 bytes by task 3109 on cpu 1: [ 22.745026][ T3109] mm_update_next_owner+0x1a5/0x410 [ 22.750429][ T3109] exit_mm+0xdb/0x180 [ 22.754499][ T3109] do_exit+0x585/0x16d0 [ 22.759005][ T3109] do_group_exit+0x141/0x150 [ 22.764036][ T3109] __x64_sys_exit_group+0x1f/0x20 [ 22.769254][ T3109] do_syscall_64+0xcd/0x1d0 [ 22.774469][ T3109] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 22.780803][ T3109] [ 22.783460][ T3109] value changed: 0xffff888104362a00 -> 0x0000000000000000 [ 22.790558][ T3109] [ 22.792961][ T3109] Reported by Kernel Concurrency Sanitizer on: [ 22.799115][ T3109] CPU: 1 PID: 3109 Comm: syz-executor.0 Not tainted 6.8.0-rc2-syzkaller-00476-g3a0e92207940 #0 2024/02/04 07:27:40 building call list... [ 22.809631][ T3109] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 22.819851][ T3109] ================================================================== executing program [ 24.733646][ T3073] can: request_module (can-proto-0) failed. [ 24.746580][ T3073] can: request_module (can-proto-0) failed. [ 24.758546][ T3073] can: request_module (can-proto-0) failed. [ 24.925390][ T3073] UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list [ 25.039422][ T3073] UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list