syzkaller login: [ 44.380015][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 44.382463][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 48.797177][ T2081] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:42444' (ECDSA) to the list of known hosts. 1970/01/01 00:01:01 fuzzer started 1970/01/01 00:01:03 dialing manager at localhost:40707 [ 64.653243][ T2229] cgroup: Unknown subsys name 'net' [ 64.794470][ T2229] cgroup: Unknown subsys name 'hugetlb' [ 64.795355][ T2229] cgroup: Unknown subsys name 'rlimit' 1970/01/01 00:01:04 syscalls: 2914 1970/01/01 00:01:04 code coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:04 comparison tracing: CONFIG_KCOV is not enabled 1970/01/01 00:01:04 extra coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:04 delay kcov mmap: CONFIG_KCOV is not enabled 1970/01/01 00:01:04 setuid sandbox: enabled 1970/01/01 00:01:04 namespace sandbox: enabled 1970/01/01 00:01:04 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:01:04 fault injection: enabled 1970/01/01 00:01:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:01:04 net packet injection: enabled 1970/01/01 00:01:04 net device setup: enabled 1970/01/01 00:01:04 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:01:04 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:01:04 NIC VF setup: PCI device 0000:00:11.0 is not available 1970/01/01 00:01:04 USB emulation: enabled 1970/01/01 00:01:04 hci packet injection: /dev/vhci does not exist 1970/01/01 00:01:04 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:01:04 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist 1970/01/01 00:01:04 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:01:04 fetching corpus: 0, signal 0/0 (executing program) 1970/01/01 00:01:27 starting 2 fuzzer processes 00:01:27 executing program 0: syz_mount_image$tmpfs(0x0, &(0x7f0000000040)='./file0\x00', 0x0, 0x0, &(0x7f0000000000), 0x0, 0x0, 0x0) fchmodat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x80) 00:01:27 executing program 1: r0 = socket(0x1d, 0x2, 0x6) r1 = socket$can_j1939(0x1d, 0x2, 0x7) ioctl$ifreq_SIOCGIFINDEX_vcan(r1, 0x8933, &(0x7f0000000040)={'vxcan1\x00', 0x0}) bind$xdp(r0, &(0x7f0000000080)={0x2c, 0x0, r2, 0x0, r0}, 0x10) r3 = dup(r0) write$P9_RXATTRWALK(r3, &(0x7f0000000000)={0xf}, 0xf) write$P9_RREMOVE(r3, 0x0, 0x0) write$P9_RVERSION(r3, &(0x7f00000000c0)={0x15, 0x65, 0xffff, 0x0, 0x8, '9P2000.L'}, 0x15) panic: unaligned 64-bit atomic operation goroutine 11 [running]: runtime/internal/atomic.panicUnaligned() /usr/local/go/src/runtime/internal/atomic/unaligned.go:8 +0x24 runtime/internal/atomic.Xadd64(0x18bc7c4, 0x1) /usr/local/go/src/runtime/internal/atomic/atomic_arm.s:256 +0x14 main.(*Proc).executeRaw(0x180a200, 0x18a4ba0, 0x1ae3420, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:320 +0x158 main.(*Proc).execute(0x180a200, 0x18a4ba0, 0x1ae3420, 0x7, 0x2) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x38 main.(*Proc).loop(0x180a200) /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: 10:35:25 Registers: info registers vcpu 0 R00=825a01c0 R01=000005b4 R02=00000001 R03=810bb424 R04=82687ec0 R05=00004400 R06=00004400 R07=00000000 R08=00000001 R09=000005b4 R10=00000000 R11=df959c4c R12=df959c50 R13=df959c40 R14=810bb458 R15=810bb434 PSR=60030013 -ZC- A S svc32 s00=67696c61 s01=2e64656e d00=2e64656e67696c61 s02=75720a3a s03=6d69746e d01=6d69746e75720a3a s04=6e692f65 s05=6e726574 d02=6e7265746e692f65 s06=612f6c61 s07=696d6f74 d03=696d6f74612f6c61 s08=61702e63 s09=5563696e d04=5563696e61702e63 s10=696c616e s11=64656e67 d05=64656e67696c616e s12=090a2928 s13=7273752f d06=7273752f090a2928 s14=636f6c2f s15=672f6c61 d07=672f6c61636f6c2f 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=4a36c245 s33=05a71076 d16=05a710764a36c245 s34=058edd91 s35=f970c4e0 d17=f970c4e0058edd91 s36=04dad507 s37=6161c0b1 d18=6161c0b104dad507 s38=871a46b8 s39=634f97fc d19=634f97fc871a46b8 s40=cfe84021 s41=55a7677d d20=55a7677dcfe84021 s42=644789f9 s43=797e2cb3 d21=797e2cb3644789f9 s44=bbb224f0 s45=5b1bc0af d22=5b1bc0afbbb224f0 s46=d919b95a s47=fbe4a7bf d23=fbe4a7bfd919b95a s48=30303030 s49=29306330 d24=2930633030303030 s50=78307b3d s51=202c3531 d25=202c353178307b3d s52=35367830 s53=7830202c d26=7830202c35367830 s54=66666666 s55=7830202c d27=7830202c66666666 s56=30202c30 s57=202c3878 d28=202c387830202c30 s58=32503927 s59=2e303030 d29=2e30303032503927 s60=2c7d274c s61=31783020 d30=317830202c7d274c s62=0a0a2935 s63=730cf673 d31=730cf6730a0a2935 FPSCR: 00000000 info registers vcpu 1 R00=831a1ea0 R01=831a1ea0 R02=00000001 R03=810bb424 R04=824f4948 R05=824f4940 R06=00000028 R07=00000006 R08=824f4948 R09=00000000 R10=00000004 R11=df981ebc R12=df981ec0 R13=df981eb0 R14=802fb1ec R15=810bb434 PSR=60000093 -ZC- A S svc32 s00=00000000 s01=00000000 d00=0000000000000000 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=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 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