syzkaller login: [ 49.920668][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 49.922322][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 49.923275][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:48195' (ECDSA) to the list of known hosts. 1970/01/01 00:01:00 fuzzer started 1970/01/01 00:01:02 dialing manager at localhost:40707 [ 63.301886][ T2228] cgroup: Unknown subsys name 'net' [ 63.449782][ T2228] cgroup: Unknown subsys name 'hugetlb' [ 63.450717][ T2228] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:01:03 syscalls: 2914 1970/01/01 00:01:03 code coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:03 comparison tracing: CONFIG_KCOV is not enabled 1970/01/01 00:01:03 extra coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:03 delay kcov mmap: CONFIG_KCOV is not enabled 1970/01/01 00:01:03 setuid sandbox: enabled 1970/01/01 00:01:03 namespace sandbox: enabled 1970/01/01 00:01:03 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:01:03 fault injection: enabled 1970/01/01 00:01:03 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:01:03 net packet injection: enabled 1970/01/01 00:01:03 net device setup: enabled 1970/01/01 00:01:03 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:01:03 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:01:03 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:01:03 USB emulation: enabled 1970/01/01 00:01:03 hci packet injection: /dev/vhci does not exist 1970/01/01 00:01:03 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:01:03 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:01:03 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:01:03 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:01:27 starting 2 fuzzer processes 00:01:27 executing program 1: r0 = openat$vnet(0xffffff9c, &(0x7f0000000040), 0x2, 0x0) r1 = openat$vnet(0xffffff9c, &(0x7f0000000040), 0x2, 0x0) r2 = dup3(r0, r1, 0x0) ioctl$VHOST_SET_OWNER(r2, 0xaf01, 0x0) ioctl$TIOCSTI(r2, 0x5412, &(0x7f0000000080)=0x80) panic: unaligned 64-bit atomic operation goroutine 14 [running]: runtime/internal/atomic.panicUnaligned() /usr/local/go/src/runtime/internal/atomic/unaligned.go:8 +0x24 runtime/internal/atomic.Xadd64(0x1d25bc4, 0x1) /usr/local/go/src/runtime/internal/atomic/atomic_arm.s:256 +0x14 main.(*Proc).executeRaw(0x1c0a200, 0x1c12b68, 0x1eeef40, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:320 +0x158 main.(*Proc).execute(0x1c0a200, 0x1c12b68, 0x1eeef40, 0x7, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x38 main.(*Proc).loop(0x1c0a200) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:76 +0xe8 created by main.main /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:307 +0x1740 VM DIAGNOSIS: 07:55:43 Registers: info registers vcpu 0 R00=825a01c0 R01=84210cc0 R02=00000038 R03=810bb424 R04=82687ec0 R05=000043ea R06=000043ea R07=00000000 R08=00000014 R09=00000000 R10=841c6250 R11=df801a94 R12=df801a98 R13=df801a88 R14=810bb458 R15=810bb434 PSR=60000113 -ZC- A S svc32 s00=34357830 s01=202c3231 d00=202c323134357830 s02=78302826 s03=30306637 d01=3030663778302826 s04=1647e4be s05=441fd451 d02=441fd4511647e4be s06=d2cd70e9 s07=64d78ded d03=64d78dedd2cd70e9 s08=0e60cee7 s09=dec2ebea d04=dec2ebea0e60cee7 s10=817607b2 s11=5aaefc24 d05=5aaefc24817607b2 s12=00000005 s13=00000000 d06=0000000000000005 s14=00000000 s15=1c000000 d07=1c00000000000000 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=50a299f7 s33=c50679fa d16=c50679fa50a299f7 s34=ea92939b s35=3c8f52ce d17=3c8f52ceea92939b s36=3fec083c s37=c97f8fb7 d18=c97f8fb73fec083c s38=791fc587 s39=9e3faaeb d19=9e3faaeb791fc587 s40=5cc1c56a s41=cd990435 d20=cd9904355cc1c56a s42=d0c255ba s43=c52929b3 d21=c52929b3d0c255ba s44=21990b1f s45=c799a856 d22=c799a85621990b1f s46=64b3dca4 s47=be3eee4f d23=be3eee4f64b3dca4 s48=00000001 s49=00000000 d24=0000000000000001 s50=00000000 s51=00000000 d25=0000000000000000 s52=7830202c s53=30202c32 d26=30202c327830202c s54=0a293078 s55=3d203272 d27=3d2032720a293078 s56=70756420 s57=30722833 d28=3072283370756420 s58=3172202c s59=7830202c d29=7830202c3172202c s60=690a2930 s61=6c74636f d30=6c74636f690a2930 s62=4f485624 s63=535f5453 d31=535f54534f485624 FPSCR: 00000000 info registers vcpu 1 R00=4a5c0d90 R01=00000014 R02=00000014 R03=00000017 R04=84a18e00 R05=8419cfc0 R06=84a18e00 R07=00000000 R08=00000001 R09=000005b4 R10=00000000 R11=eb9b9cbc R12=00000009 R13=eb9b9c98 R14=00042c1d R15=81484004 PSR=00030013 ---- A S svc32 s00=302b2038 s01=0a343278 d00=0a343278302b2038 s02=612f6c61 s03=696d6f74 d01=696d6f74612f6c61 s04=61702e63 s05=5563696e d02=5563696e61702e63 s06=696c616e s07=64656e67 d03=64656e67696c616e s08=090a2928 s09=7273752f d04=7273752f090a2928 s10=636f6c2f s11=672f6c61 d05=672f6c61636f6c2f s12=72732f6f s13=75722f63 d06=75722f6372732f6f s14=6d69746e s15=6e692f65 d07=6e692f656d69746e s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=50a299f7 s33=c50679fa d16=c50679fa50a299f7 s34=ea92939b s35=3c8f52ce d17=3c8f52ceea92939b s36=3fec083c s37=c97f8fb7 d18=c97f8fb73fec083c s38=791fc587 s39=9e3faaeb d19=9e3faaeb791fc587 s40=5cc1c56a s41=cd990435 d20=cd9904355cc1c56a s42=d0c255ba s43=c52929b3 d21=c52929b3d0c255ba s44=21990b1f s45=c799a856 d22=c799a85621990b1f s46=64b3dca4 s47=be3eee4f d23=be3eee4f64b3dca4 s48=00000001 s49=00000000 d24=0000000000000001 s50=00000000 s51=00000000 d25=0000000000000000 s52=7830202c s53=30202c32 d26=30202c327830202c s54=0a293078 s55=3d203272 d27=3d2032720a293078 s56=70756420 s57=30722833 d28=3072283370756420 s58=3172202c s59=7830202c d29=7830202c3172202c s60=690a2930 s61=6c74636f d30=6c74636f690a2930 s62=4f485624 s63=535f5453 d31=535f54534f485624 FPSCR: 00000000