syzkaller login: [ 44.381338][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 44.383106][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 44.389283][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:32487' (ECDSA) to the list of known hosts. 1970/01/01 00:00:54 fuzzer started 1970/01/01 00:00:56 dialing manager at localhost:40707 [ 57.918456][ T2228] cgroup: Unknown subsys name 'net' [ 58.076395][ T2228] cgroup: Unknown subsys name 'hugetlb' [ 58.079207][ T2228] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:00:58 syscalls: 2914 1970/01/01 00:00:58 code coverage: CONFIG_KCOV is not enabled 1970/01/01 00:00:58 comparison tracing: CONFIG_KCOV is not enabled 1970/01/01 00:00:58 extra coverage: CONFIG_KCOV is not enabled 1970/01/01 00:00:58 delay kcov mmap: CONFIG_KCOV is not enabled 1970/01/01 00:00:58 setuid sandbox: enabled 1970/01/01 00:00:58 namespace sandbox: enabled 1970/01/01 00:00:58 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:00:58 fault injection: enabled 1970/01/01 00:00:58 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:00:58 net packet injection: enabled 1970/01/01 00:00:58 net device setup: enabled 1970/01/01 00:00:58 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:00:58 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:00:58 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:00:58 USB emulation: enabled 1970/01/01 00:00:58 hci packet injection: /dev/vhci does not exist 1970/01/01 00:00:58 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:00:58 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:00:58 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:00:58 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:01:17 starting 2 fuzzer processes 00:01:17 executing program 1: r0 = openat$vcs(0xffffff9c, &(0x7f0000000240), 0x0, 0x0) r1 = openat$loop_ctrl(0xffffff9c, &(0x7f0000000300), 0x0, 0x0) dup2(r1, r0) ioctl$SNDRV_SEQ_IOCTL_GET_CLIENT_INFO(r0, 0xc0bc5310, 0x0) 00:01:17 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) getpeername(r0, &(0x7f0000000240)=@pppol2tpv3={0x18, 0x1, {0x0, 0xffffffffffffffff}}, &(0x7f0000000140)=0x80) dup3(r1, r2, 0x0) sendmmsg$inet(r2, 0x0, 0x0, 0x0) panic: unaligned 64-bit atomic operation goroutine 24 [running]: runtime/internal/atomic.panicUnaligned() /usr/local/go/src/runtime/internal/atomic/unaligned.go:8 +0x24 runtime/internal/atomic.Xadd64(0x246a7c4, 0x1) /usr/local/go/src/runtime/internal/atomic/atomic_arm.s:256 +0x14 main.(*Proc).executeRaw(0x2624ba0, 0x26280b8, 0x2625740, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:320 +0x158 main.(*Proc).execute(0x2624ba0, 0x26280b8, 0x2625740, 0x7, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x38 main.(*Proc).loop(0x2624ba0) /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 panic: unaligned 64-bit atomic operation goroutine 25 [running]: runtime/internal/atomic.panicUnaligned() /usr/local/go/src/runtime/internal/atomic/unaligned.go:8 +0x24 runtime/internal/atomic.Xadd64(0x246a7c4, 0x1) /usr/local/go/src/runtime/internal/atomic/atomic_arm.s:256 +0x14 main.(*Proc).executeRaw(0x2624c40, 0x26280b8, 0x2625580, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:320 +0x158 main.(*Proc).execute(0x2624c40, 0x26280b8, 0x2625580, 0x7, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x38 main.(*Proc).loop(0x2624c40) /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: 05:31:59 Registers: info registers vcpu 0 R00=00000098 R01=00000000 R02=00000000 R03=00000000 R04=004c7168 R05=02433c30 R06=00011f90 R07=00011f90 R08=ffffffff R09=00000380 R10=02400b40 R11=ffffffff R12=00000001 R13=02433c48 R14=0006ac68 R15=0006c990 PSR=00000010 ---- A S usr32 s00=000000ff s01=00000000 d00=00000000000000ff s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=63538263 s11=37010135 d05=3701013563538263 s12=0379010e s13=1a0f0c06 d06=1a0f0c060379010e s14=3633211c s15=39773b3a d07=39773b3a3633211c 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=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000 info registers vcpu 1 R00=82a8f800 R01=8425b400 R02=00000000 R03=82b1ba00 R04=00000000 R05=00004220 R06=00000000 R07=ebc59a37 R08=812b6c88 R09=ebc59a37 R10=82709940 R11=ebc599cc R12=ebc59960 R13=ebc598f0 R14=8047d184 R15=80479160 PSR=60030013 -ZC- A S svc32 s00=696e6170 s01=616e5563 d00=616e5563696e6170 s02=30343130 s03=78303d29 d01=78303d2930343130 s04=687856f3 s05=316aec18 d02=316aec18687856f3 s06=ee2c9f73 s07=b9bc0a24 d03=b9bc0a24ee2c9f73 s08=b9431181 s09=4cbbe658 d04=4cbbe658b9431181 s10=2e53c9ee s11=3e37c6be d05=3e37c6be2e53c9ee s12=00000005 s13=00000000 d06=0000000000000005 s14=00000000 s15=1a000000 d07=1a00000000000000 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=9c86eca7 s33=47cbceaf d16=47cbceaf9c86eca7 s34=aa6a3429 s35=5d6e0ac4 d17=5d6e0ac4aa6a3429 s36=f4363516 s37=0f100bf2 d18=0f100bf2f4363516 s38=b16e877a s39=0750cba5 d19=0750cba5b16e877a s40=f541ca5e s41=61ee9e3a d20=61ee9e3af541ca5e s42=c5dc4e3f s43=ef5d5015 d21=ef5d5015c5dc4e3f s44=31dcaf7d s45=0968691e d22=0968691e31dcaf7d s46=868c447f s47=052eb0ea d23=052eb0ea868c447f s48=00000001 s49=00000000 d24=0000000000000001 s50=00000000 s51=00000000 d25=0000000000000000 s52=72656570 s53=656d616e d26=656d616e72656570 s54=2c307228 s55=30282620 d27=302826202c307228 s56=30663778 s57=30303030 d28=3030303030663778 s58=34323030 s59=403d2930 d29=403d293034323030 s60=6f707070 s61=7074326c d30=7074326c6f707070 s62=7b3d3376 s63=38317830 d31=383178307b3d3376 FPSCR: 00000000