subfinder: panic while running job: runtime error: invalid memory address or nil pointer dereference

The application crashes with some domains, maybe invalid responses are not handled properly somewhere in code…

panic: runtime error: invalid memory address or nil pointer dereference [recovered]
        panic: interface conversion: interface {} is runtime.errorString, not string
[signal SIGSEGV: segmentation violation code=0x1 addr=0x40 pc=0x6b9d9b]

goroutine 36 [running]:
github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).subworker.func1(0xc420074af0)
        /home/ec2-user/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:61 +0x163
panic(0x717da0, 0x93b9f0)
        /usr/local/go/src/runtime/panic.go:502 +0x229
github.com/subfinder/subfinder/libsubfinder/sources/ipv4info.Query(0xc4200e6a60, 0x2, 0x2, 0x68c801, 0x101)
        /home/ec2-user/go/src/github.com/subfinder/subfinder/libsubfinder/sources/ipv4info/ipv4info.go:99 +0x8fb
github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).subworker(0xc420096b40, 0xc420074af0)
        /home/ec2-user/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:64 +0x6e
github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).worker(0xc420096b40, 0x11)
        /home/ec2-user/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:78 +0xb3
created by github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).Run
        /home/ec2-user/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:181 +0x7f

About this issue

Original URL
State: closed
Created 6 years ago
Comments: 19 (8 by maintainers)

Commits related to this issue

Fix fox DnsDB failure Handles #118 — committed to projectdiscovery/subfinder by Mzack9999 6 years ago

Most upvoted comments

Can confirm the same. Reverting to an older build does not solve the issue.

edit: temp fix: -exclude-sources dnsdb

Running enumeration on x
2018/08/17 22:22:02 panic while running job: runtime error: index out of range
panic: runtime error: index out of range [recovered]
	panic: interface conversion: interface {} is runtime.errorString, not string

goroutine 33 [running]:
github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).subworker.func1(0xc420074a00)
	/home/europa/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:61 +0x163
panic(0x716ea0, 0x93aa30)
	/usr/local/go/src/runtime/panic.go:502 +0x229
github.com/subfinder/subfinder/libsubfinder/sources/dnsdb.Query(0xc4200e6a00, 0x2, 0x2, 0x68cc01, 0x101)
	/home/europa/go/src/github.com/subfinder/subfinder/libsubfinder/sources/dnsdb/dnsdb.go:53 +0x70e
github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).subworker(0xc420094c80, 0xc420074a00)
	/home/europa/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:64 +0x6e
github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).worker(0xc420094c80, 0xe)
	/home/europa/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:78 +0xb3
created by github.com/subfinder/subfinder/libsubfinder/helper.(*Pool).Run
	/home/europa/go/src/github.com/subfinder/subfinder/libsubfinder/helper/pool.go:181 +0x7f

eur0pa on Aug 17, 2018

Can you supply further information? The flags you were using as well as your GO version would greatly aid in diagnosing this.

codingo on Jul 14, 2018