Comments (8)
dogancanbakir
commented on August 27, 2024
1
Still the same for me.
@RamanaReddy0M Can you also try to reproduce this, please? Thanks!
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RamanaReddy0M
commented on August 27, 2024
1
I'm also couldn't reproduce the issue - dev branch
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dogancanbakir
commented on August 27, 2024
I couldn't repro the issue - used the dev branch for testing.
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iuliu8899
commented on August 27, 2024
I couldn't repro the issue - used the dev branch for testing.
... idk why, but I reproduce that in dev branch as well.
here is the path when panic occurred:
- log "syn scan is not possible, falling back to connect scan" (scan.go, line: 173)
- change scan type to "c", then acquire handler again
- call NewListenHandler() at scan_common.go, line: 51
- NewListenHandler does not init TcpConn4 chan
- sendWithConn(ip, listenHandler.TcpConn4, &tcp) called at scan_unix.go, line: 245
- conn.WriteTo(buf.Bytes(), &net.IPAddr{IP: net.ParseIP(destIP)}) called at scan_unix.go, line: 455
- panic at !c.ok() at go/src/net/iprawsocket.go, line: 171
idk why it panic, since c.ok() checks nil pointer... but it happens.
my device is Apple M1 Pro, macOS 14.5, go version go1.21.8 darwin/arm64.
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dogancanbakir
commented on August 27, 2024
@iuliu8899 Can you provide the specific error message that appears when you attempt to use the dev branch?
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iuliu8899
commented on August 27, 2024
GOROOT=/usr/local/go #gosetup
GOPATH=/Users/qq/go #gosetup
GONOPROXY= #gosetup
/usr/local/go/bin/go test -c -o /Users/qq/Library/Caches/JetBrains/GoLand2024.1/tmp/GoLand/___TestAliveScanIpConcurrently_in_test.test -gcflags all=-N -l test #gosetup
/usr/local/go/bin/go tool test2json -t /Applications/GoLand.app/Contents/plugins/go-plugin/lib/dlv/macarm/dlv --listen=127.0.0.1:56190 --headless=true --api-version=2 --check-go-version=false --only-same-user=false exec /Users/qq/Library/Caches/JetBrains/GoLand2024.1/tmp/GoLand/___TestAliveScanIpConcurrently_in_test.test -- -test.v -test.paniconexit0 -test.run ^\QTestAliveScanIpConcurrently\E$
API server listening at: 127.0.0.1:56190
=== RUN TestAliveScanIpConcurrently
[INF] Running host discovery scan
[INF] syn scan is not possible, falling back to connect scan
[INF] Running host discovery scan
[INF] syn scan is not possible, falling back to connect scan
[INF] syn scan is not possible, falling back to connect scan
[INF] Running host discovery scan
[INF] Running host discovery scan
[INF] Found alive host 192.168.110.112 (192.168.110.112)
192.168.110.112
[INF] Found alive host 192.168.110.42 (192.168.110.42)
192.168.110.42
[INF] Found alive host 192.168.110.43 (192.168.110.43)
192.168.110.43
[INF] Found alive host 192.168.110.32 (192.168.110.32)
192.168.110.32
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x0 pc=0x104c45a90]
goroutine 31 [running]:
net.(*IPConn).WriteTo(0x0, {0x14000026c90, 0x18, 0x18}, {0x106557680, 0x14000309710})
/usr/local/go/src/net/iprawsock.go:171 +0x40
github.com/projectdiscovery/naabu/v2/pkg/scan.sendWithConn({0x140010293a0, 0xe}, {0x106562850, 0x0}, {0x14001119928, 0x1, 0x1})
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:455 +0x1d0
github.com/projectdiscovery/naabu/v2/pkg/scan.sendAsyncTCP4(0x140005f86e0, {0x140010293a0, 0xe}, 0x14000b13038, 0x0)
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:245 +0xfe0
github.com/projectdiscovery/naabu/v2/pkg/scan.SendAsyncPkg(0x140005f86e0, {0x140010293a0, 0xe}, 0x14000b13038, 0x0)
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:164 +0x1bc
github.com/projectdiscovery/naabu/v2/pkg/scan.TransportWriteWorker()
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:152 +0xa8
created by github.com/projectdiscovery/naabu/v2/pkg/scan.init.3 in goroutine 1
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:119 +0x1504
Debugger finished with the exit code 0
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dogancanbakir
commented on August 27, 2024
@iuliu8899 I've pushed a brand called debug_nil_deref. Can you please try with that branch and send us the output? Thanks!
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iuliu8899
commented on August 27, 2024
GOROOT=/usr/local/go #gosetup
GOPATH=/Users/qq/go #gosetup
GONOPROXY= #gosetup
/usr/local/go/bin/go test -c -o /Users/qq/Library/Caches/JetBrains/GoLand2024.1/tmp/GoLand/___TestAliveScanIpConcurrently_in_test.test -gcflags all=-N -l test #gosetup
/usr/local/go/bin/go tool test2json -t /Applications/GoLand.app/Contents/plugins/go-plugin/lib/dlv/macarm/dlv --listen=127.0.0.1:64480 --headless=true --api-version=2 --check-go-version=false --only-same-user=false exec /Users/qq/Library/Caches/JetBrains/GoLand2024.1/tmp/GoLand/___TestAliveScanIpConcurrently_in_test.test -- -test.v -test.paniconexit0 -test.run ^\QTestAliveScanIpConcurrently\E$
API server listening at: 127.0.0.1:64480
[INF] Initialized TcpConn4: &{{0x14000c3a300}}
[INF] Initialized UdpConn4: &{{0x14000c3a380}}
[INF] Initialized TcpConn6: &{{0x14000c3a400}}
[INF] Initialized UdpConn6: &{{0x14000c3a480}}
=== RUN TestAliveScanIpConcurrently
[INF] Running host discovery scan
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] TcpConn4 before sendWithConn: &{{0x14000c3a300}}
[INF] syn scan is not possible, falling back to connect scan
[INF] syn scan is not possible, falling back to connect scan
[INF] Running host discovery scan
[INF] TcpConn4 before sendWithConn: <nil>
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x0 pc=0x1027c1490]
goroutine 15 [running]:
net.(*IPConn).WriteTo(0x0, {0x14000c92060, 0x18, 0x18}, {0x1040d3680, 0x14000d1a450})
/usr/local/go/src/net/iprawsock.go:171 +0x40
github.com/projectdiscovery/naabu/v2/pkg/scan.sendWithConn({0x14000a9f190, 0xe}, {0x1040de850, 0x0}, {0x14000d7f900, 0x1, 0x1})
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:465 +0x1d0
github.com/projectdiscovery/naabu/v2/pkg/scan.sendAsyncTCP4(0x140006a4b40, {0x14000a9f190, 0xe}, 0x14000c391a0, 0x0)
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:252 +0x1070
github.com/projectdiscovery/naabu/v2/pkg/scan.SendAsyncPkg(0x140006a4b40, {0x14000a9f190, 0xe}, 0x14000c391a0, 0x0)
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:170 +0x1bc
github.com/projectdiscovery/naabu/v2/pkg/scan.TransportWriteWorker()
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:158 +0xa8
created by github.com/projectdiscovery/naabu/v2/pkg/scan.init.3 in goroutine 1
/Users/qq/opensource/naabu/v2/pkg/scan/scan_unix.go:125 +0x1744
Debugger finished with the exit code 0
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