syzkaller login: [ 189.339080][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 195.117547][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 195.121174][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:61436' (ECDSA) to the list of known hosts. 1970/01/01 00:03:43 fuzzer started 1970/01/01 00:03:48 dialing manager at localhost:41535 1970/01/01 00:03:48 checking machine... 1970/01/01 00:03:48 checking revisions... 1970/01/01 00:03:50 testing simple program... [ 231.280493][ T3064] cgroup: Unknown subsys name 'net' [ 231.708726][ T3064] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 236.806958][ T3067] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 236.825671][ T3067] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link executing program [ 239.261464][ T3067] device hsr_slave_0 entered promiscuous mode [ 239.332258][ T3067] device hsr_slave_1 entered promiscuous mode [ 241.272816][ T3067] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 241.343100][ T3067] netdevsim netdevsim0 netdevsim1: renamed from eth1 executing program [ 241.423372][ T3067] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 241.495635][ T3067] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 243.477348][ T3067] 8021q: adding VLAN 0 to HW filter on device bond0 [ 243.558651][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 243.579976][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready executing program [ 244.744912][ T897] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 244.751007][ T897] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 244.816995][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 244.822094][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 244.893398][ T894] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 244.932094][ T894] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 245.076509][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 245.083131][ T13] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 245.208366][ T3367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 245.228697][ T3367] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 245.273092][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 246.117570][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 246.118845][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready executing program [ 248.300656][ T3367] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 248.307274][ T3367] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 249.522272][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 249.529711][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 249.570233][ T894] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 249.576836][ T894] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 249.593458][ T3067] device veth0_vlan entered promiscuous mode [ 249.666503][ T3067] device veth1_vlan entered promiscuous mode [ 249.855983][ T3407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 249.860456][ T3407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 249.880841][ T3067] device veth0_macvtap entered promiscuous mode [ 249.951985][ T3067] device veth1_macvtap entered promiscuous mode [ 250.049179][ T3407] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 250.053752][ T3407] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 250.070087][ T3407] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 250.077880][ T3407] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 250.130957][ T894] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 250.140933][ T894] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 250.212578][ T3067] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 250.218157][ T3067] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 250.219052][ T3067] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 250.219777][ T3067] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program 1970/01/01 00:04:10 building call list... [ 252.356772][ T135] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 252.607772][ T135] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 252.840714][ T135] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 253.070054][ T135] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 255.945440][ T135] device hsr_slave_0 left promiscuous mode [ 255.996578][ T135] device hsr_slave_1 left promiscuous mode [ 256.208951][ T135] device veth1_macvtap left promiscuous mode [ 256.210369][ T135] device veth0_macvtap left promiscuous mode [ 256.211910][ T135] device veth1_vlan left promiscuous mode [ 256.213696][ T135] device veth0_vlan left promiscuous mode executing program [ 258.858551][ T135] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 258.998899][ T135] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 259.466748][ T135] bond0 (unregistering): Released all slaves executing program executing program executing program executing program [ 268.513503][ T3059] can: request_module (can-proto-0) failed. [ 268.778000][ T3059] can: request_module (can-proto-0) failed. [ 268.960831][ T3059] can: request_module (can-proto-0) failed. executing program executing program executing program executing program [ 286.669203][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 286.673382][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 286.678182][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 286.681687][ T2904] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. 1970/01/01 00:04:58 syscalls: 3071 1970/01/01 00:04:58 code coverage: CONFIG_KCOV is not enabled 1970/01/01 00:04:58 comparison tracing: CONFIG_KCOV is not enabled 1970/01/01 00:04:58 extra coverage: CONFIG_KCOV is not enabled 1970/01/01 00:04:58 delay kcov mmap: CONFIG_KCOV is not enabled 1970/01/01 00:04:58 setuid sandbox: enabled 1970/01/01 00:04:58 namespace sandbox: enabled 1970/01/01 00:04:58 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:04:58 fault injection: enabled 1970/01/01 00:04:58 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:04:58 net packet injection: enabled 1970/01/01 00:04:58 net device setup: enabled 1970/01/01 00:04:58 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:04:58 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:04:58 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:04:58 USB emulation: enabled 1970/01/01 00:04:58 hci packet injection: /dev/vhci does not exist 1970/01/01 00:04:58 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:04:58 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:04:58 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:04:58 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:05:21 starting 2 fuzzer processes 00:05:21 executing program 0: r0 = socket$nl_audit(0x10, 0x3, 0x9) r1 = dup(r0) write$cgroup_pid(r1, &(0x7f0000000000)=0xffffffffffffffff, 0x12) 00:05:21 executing program 1: r0 = socket$inet6_mptcp(0xa, 0x1, 0x106) connect$inet6(r0, &(0x7f0000000140)={0xa, 0x0, 0x0, @local, 0x2}, 0x1c) r1 = dup(r0) sendmsg$RDMA_NLDEV_CMD_SET(r1, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000100)={0x0}}, 0x0) [ 333.668159][ T3592] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 333.709848][ T3593] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 333.822379][ T3592] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 333.921110][ T3593] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 343.393340][ T3593] device hsr_slave_0 entered promiscuous mode [ 343.538935][ T3593] device hsr_slave_1 entered promiscuous mode [ 345.898338][ T3592] device hsr_slave_0 entered promiscuous mode [ 346.001300][ T3592] device hsr_slave_1 entered promiscuous mode [ 346.116886][ T3592] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 346.118669][ T3592] Cannot create hsr debugfs directory [ 554.226485][ T3367] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P3593 } 2658 jiffies s: 1233 root: 0x0/T [ 554.229389][ T3367] rcu: blocking rcu_node structures (internal RCU debug): VM DIAGNOSIS: 14:54:04 Registers: info registers vcpu 0 PC=ffff80000cb5620c X00=0000000000039573 X01=0000000000000000 X02=0000000000000003 X03=0000000000000001 X04=ffff60000d528741 X05=ffff00006a943a00 X06=0000000000000001 X07=00009ffff2ad78c0 X08=ffff00006a943a03 X09=dfff800000000000 X10=ffff60000d528740 X11=1fffe0000d528740 X12=ffff60000d528741 X13=1ffff00001c49be6 X14=1ffff00001c3ef50 X15=ffff00006a936bc8 X16=0000000000000000 X17=0000000000000000 X18=ffff00006a936c00 X19=ffff80000825fab8 X20=0000000000000000 X21=ffff80000e22cb70 X22=0000000000000000 X23=ffff80000e22cbf0 X24=0000000000000000 X25=1ffff00001c4596e X26=ffff80000e22cc10 X27=0000000000000000 X28=0000000000000000 X29=ffff80000e1f7cf0 X30=ffff80000cb56224 SP=ffff80000e1f7cf0 PSTATE=100000c5 ---V EL1h FPCR=00000000 FPSR=00000010 Q00=0000000000000000:0000000000000000 Q01=0000000000000000:4107c04000000000 Q02=99086653acb4bb24:d266f10b8b1fc527 Q03=0000000040000000:0000000000000000 Q04=4010040140100401:4000000000000000 Q05=4010040140100401:4010040140100401 Q06=5555400000400000:5555400000400000 Q07=0000000000000000:0000000000000000 Q08=0000000000000000:0000000000000000 Q09=0000000000000000:0000000000000000 Q10=0000000000000000:0000000000000000 Q11=0000000000000000:0000000000000000 Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000 Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000 Q16=0000000000000000:0000000000000000 Q17=0000000000000000:0000000000000000 Q18=0000000000000000:0000000000000000 Q19=0000000000000000:0000000000000000 Q20=0000000000000000:0000000000000000 Q21=0000000000000000:0000000000000000 Q22=0000000000000000:0000000000000000 Q23=0000000000000000:0000000000000000 Q24=0000000000000000:0000000000000000 Q25=0000000000000000:0000000000000000 Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000 Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000 Q30=0000000000000010:00000033c4cd0820 Q31=0000000000000000:0000000000000000 info registers vcpu 1 PC=ffff8000082b2da4 X00=0000000000000000 X01=00000000000000c0 X02=1fffe0000227f6c1 X03=1fffe0000227f6c1 X04=dfff800000000000 X05=0000000000000000 X06=ffff80000f537d00 X07=1fffe0000227f80d X08=ffff0000113fc068 X09=0000000000000078 X10=ffff0000113fbfb4 X11=0000000000000004 X12=1fffe0000227f7f6 X13=0000000000000000 X14=1ffff000022d8dcc X15=ffff00006a936bc8 X16=0000000000000000 X17=0000000000000000 X18=ffff00006a936c00 X19=0000000000000001 X20=ffff0000113fbfd0 X21=ffff80000e411120 X22=ffff80000cb57bb0 X23=ffff0000113fbfd0 X24=0000000000000002 X25=dfff800000000000 X26=00000000ffffffff X27=ffff000012d13434 X28=ffff0000113fb600 X29=ffff8000116c6ee0 X30=ffff80000cb57a84 SP=ffff8000116c6f00 PSTATE=10000005 ---V EL1h FPCR=00000000 FPSR=00000010 Q00=0000000000000000:0000000000000000 Q01=0000000000000000:4107c04000000000 Q02=99086653acb4bb24:d266f10b8b1fc527 Q03=0000000040000000:0000000000000000 Q04=4010040140100401:4000000000000000 Q05=4010040140100401:4010040140100401 Q06=5555400000400000:5555400000400000 Q07=0000000000000000:0000000000000000 Q08=0000000000000000:0000000000000000 Q09=0000000000000000:0000000000000000 Q10=0000000000000000:0000000000000000 Q11=0000000000000000:0000000000000000 Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000 Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000 Q16=0000000000000000:0000000000000000 Q17=0000000000000000:0000000000000000 Q18=0000000000000000:0000000000000000 Q19=0000000000000000:0000000000000000 Q20=0000000000000000:0000000000000000 Q21=0000000000000000:0000000000000000 Q22=0000000000000000:0000000000000000 Q23=0000000000000000:0000000000000000 Q24=0000000000000000:0000000000000000 Q25=0000000000000000:0000000000000000 Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000 Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000 Q30=0000000000000010:00000033c4cd0820 Q31=0000000000000000:0000000000000000