[ 6.836961][ T2822] eql: remember to turn off Van-Jacobson compression on your slave devices [ 6.970919][ T2892] ssh-keygen (2892) used greatest stack depth: 11192 bytes left Starting sshd: OK syzkaller syzkaller login: [ 13.442675][ T23] kauditd_printk_skb: 38 callbacks suppressed [ 13.442687][ T23] audit: type=1400 audit(1671094447.300:72): avc: denied { transition } for pid=2979 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 [ 13.447122][ T23] audit: type=1400 audit(1671094447.300:73): avc: denied { write } for pid=2979 comm="sh" path="pipe:[15009]" dev="pipefs" ino=15009 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.176' (ECDSA) to the list of known hosts. 2022/12/15 08:54:47 ignoring optional flag "sandboxArg"="0" 2022/12/15 08:54:47 parsed 1 programs [ 53.336659][ T23] audit: type=1400 audit(1671094487.190:74): avc: denied { getattr } for pid=3153 comm="syz-execprog" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 53.360296][ T23] audit: type=1400 audit(1671094487.210:75): avc: denied { read } for pid=3153 comm="syz-execprog" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 53.364218][ T3159] cgroup: Unknown subsys name 'net' [ 53.381420][ T23] audit: type=1400 audit(1671094487.210:76): avc: denied { open } for pid=3153 comm="syz-execprog" path="user:[4026531837]" dev="nsfs" ino=4026531837 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:nsfs_t tclass=file permissive=1 [ 53.409916][ T23] audit: type=1400 audit(1671094487.220:77): avc: denied { mounton } for pid=3159 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1137 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 53.432604][ T23] audit: type=1400 audit(1671094487.220:78): avc: denied { mount } for pid=3159 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 [ 53.454743][ T23] audit: type=1400 audit(1671094487.240:79): avc: denied { unmount } for pid=3159 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 53.561533][ T3159] cgroup: Unknown subsys name 'rlimit' 2022/12/15 08:54:47 executed programs: 0 [ 53.681159][ T23] audit: type=1400 audit(1671094487.540:80): avc: denied { mounton } for pid=3159 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 53.708661][ T23] audit: type=1400 audit(1671094487.540:81): avc: denied { mount } for pid=3159 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 53.731960][ T23] audit: type=1400 audit(1671094487.540:82): avc: denied { create } for pid=3159 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 53.752383][ T23] audit: type=1400 audit(1671094487.540:83): avc: denied { write } for pid=3159 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 53.851509][ T3163] chnl_net:caif_netlink_parms(): no params data found [ 53.879593][ T3163] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.886683][ T3163] bridge0: port 1(bridge_slave_0) entered disabled state [ 53.894379][ T3163] device bridge_slave_0 entered promiscuous mode [ 53.901494][ T3163] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.908522][ T3163] bridge0: port 2(bridge_slave_1) entered disabled state [ 53.915984][ T3163] device bridge_slave_1 entered promiscuous mode [ 53.930484][ T3163] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.940415][ T3163] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.956948][ T3163] team0: Port device team_slave_0 added [ 53.963242][ T3163] team0: Port device team_slave_1 added [ 53.976242][ T3163] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.983203][ T3163] 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. [ 54.009106][ T3163] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 54.020306][ T3163] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 54.027241][ T3163] 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. [ 54.053240][ T3163] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 54.075716][ T3163] device hsr_slave_0 entered promiscuous mode [ 54.082110][ T3163] device hsr_slave_1 entered promiscuous mode [ 54.134292][ T3163] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 54.142602][ T3163] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 54.150996][ T3163] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 54.158994][ T3163] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 54.171482][ T3163] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.178523][ T3163] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.185814][ T3163] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.192937][ T3163] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.217043][ T3163] 8021q: adding VLAN 0 to HW filter on device bond0 [ 54.226447][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 54.234774][ T3180] bridge0: port 1(bridge_slave_0) entered disabled state [ 54.242930][ T3180] bridge0: port 2(bridge_slave_1) entered disabled state [ 54.251155][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 54.260595][ T3163] 8021q: adding VLAN 0 to HW filter on device team0 [ 54.271344][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 54.279635][ T19] bridge0: port 1(bridge_slave_0) entered blocking state [ 54.286760][ T19] bridge0: port 1(bridge_slave_0) entered forwarding state [ 54.294352][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 54.302656][ T19] bridge0: port 2(bridge_slave_1) entered blocking state [ 54.309671][ T19] bridge0: port 2(bridge_slave_1) entered forwarding state [ 54.323122][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 54.334195][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.344132][ T3163] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 54.354936][ T3163] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 54.363161][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.402530][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 54.409925][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 54.418584][ T3163] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 54.429888][ T3183] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 54.478568][ T3163] device veth0_vlan entered promiscuous mode [ 54.485375][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 54.493960][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 54.501597][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 54.511374][ T3163] device veth1_vlan entered promiscuous mode [ 54.522551][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 54.530898][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 54.540425][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 54.549842][ T3163] device veth0_macvtap entered promiscuous mode [ 54.557688][ T3163] device veth1_macvtap entered promiscuous mode [ 54.568549][ T3163] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 54.575922][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 54.585114][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 54.595138][ T3163] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 54.602729][ T3179] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 54.612152][ T3163] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.620914][ T3163] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.629662][ T3163] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.638419][ T3163] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 54.675195][ T3197] Zero length message leads to an empty skb 2022/12/15 08:54:52 executed programs: 379 [ 58.827836][ T2785] ================================================================== [ 58.835962][ T2785] BUG: KCSAN: data-race in dentry_unlink_inode / step_into [ 58.843174][ T2785] [ 58.845518][ T2785] write to 0xffff88810ac6f4b0 of 8 bytes by task 3162 on cpu 0: [ 58.853143][ T2785] dentry_unlink_inode+0x65/0x240 [ 58.858178][ T2785] d_delete+0x70/0xa0 [ 58.862162][ T2785] d_delete_notify+0x30/0xe0 [ 58.866764][ T2785] vfs_unlink+0x306/0x3e0 [ 58.871104][ T2785] do_unlinkat+0x258/0x510 [ 58.875527][ T2785] __x64_sys_unlink+0x2c/0x30 [ 58.880212][ T2785] do_syscall_64+0x2b/0x70 [ 58.884624][ T2785] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.890519][ T2785] [ 58.892842][ T2785] read to 0xffff88810ac6f4b0 of 8 bytes by task 2785 on cpu 1: [ 58.900385][ T2785] step_into+0x115/0x7d0 [ 58.904643][ T2785] walk_component+0x164/0x230 [ 58.909332][ T2785] path_lookupat+0x11d/0x2b0 [ 58.913930][ T2785] filename_lookup+0x133/0x310 [ 58.918698][ T2785] user_path_at_empty+0x3e/0x110 [ 58.923641][ T2785] do_readlinkat+0x98/0x210 [ 58.928148][ T2785] __x64_sys_readlink+0x43/0x50 [ 58.933010][ T2785] do_syscall_64+0x2b/0x70 [ 58.937424][ T2785] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.943339][ T2785] [ 58.945660][ T2785] value changed: 0xffff888108cea958 -> 0x0000000000000000 [ 58.952781][ T2785] [ 58.955102][ T2785] Reported by Kernel Concurrency Sanitizer on: [ 58.961241][ T2785] CPU: 1 PID: 2785 Comm: udevd Not tainted 6.1.0-syzkaller-09941-ge2ca6ba6ba01-dirty #0 [ 58.970958][ T2785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 58.981016][ T2785] ================================================================== 2022/12/15 08:54:57 executed programs: 852 2022/12/15 08:55:02 executed programs: 1336