[Bug] [mysql] 2026/01/09 09:15:17 connection.go:49: busy buffer

[sec404forbidden]

问题模块

POC/漏洞扫描 (POC Scan)

严重程度

功能异常 (Malfunction)

问题描述

运行 过程中出现多次 [mysql] 2026/01/09 09:13:43 connection.go:49: busy buffer

复现步骤

fscan.exe -hf IP.txt -o ip.txt

错误输出

[mysql] 2026/01/09 09:14:27 connection.go:49: busy buffer   在正确的结果里面混淆多mysql的报错

环境信息

• fscan 版本: [2.0.1]
• 操作系统: [Windows 11 ]
• 架构: [amd64 ]
• Go 版本 (如自编译): [如 go1.25.0] 安装给出的指令进行编译

补充信息

[mysql] 2026/01/09 09:14:33 connection.go:49: busy buffer
[mysql] 2026/01/09 09:14:33 connection.go:49: busy buffer
[mysql] 2026/01/09 09:14:34 connection.go:49: busy buffer
[mysql] 2026/01/09 09:14:34 connection.go:49: busy buffer
[mysql] 2026/01/09 09:14:35 connection.go:49: busy buffer
[mysql] 2026/01/09 09:14:35 connection.go:49: busy buffer
[mysql] 2026/01/09 09:14:35 connection.go:49: busy buffer

[ZacharyZcR]

更新到dev分支测试即可，老版本mysql库内部报错未屏蔽

[sec404forbidden]

D:\Download\fscan-dev>go build -tags web -ldflags="-s -w" -trimpath -o fscan main.go
go: downloading github.com/gorilla/websocket v1.5.3

command-line-arguments

.\main.go:21:2: undefined: startPprof
.\main.go:22:8: undefined: stopPprof 这部分 我直接修改代码吗 ？ 有web和无web编译都有这个报错

[ZacharyZcR]

D:\Download\fscan-dev>go build -tags web -ldflags="-s -w" -trimpath -o fscan main.go go: downloading github.com/gorilla/websocket v1.5.3

command-line-arguments

.\main.go:21:2: undefined: startPprof .\main.go:22:8: undefined: stopPprof 这部分 我直接修改代码吗 ？ 有web和无web编译都有这个报错

编译带pprof了，稍等，性能问题，我排查一下

[ZacharyZcR]

D:\Download\fscan-dev>go build -tags web -ldflags="-s -w" -trimpath -o fscan main.go go: downloading github.com/gorilla/websocket v1.5.3

command-line-arguments

.\main.go:21:2: undefined: startPprof .\main.go:22:8: undefined: stopPprof 这部分 我直接修改代码吗 ？ 有web和无web编译都有这个报错

代码应该没问题，dev分支下

标准版本

go build -ldflags="-s -w" -trimpath -o fscan .

带 Web UI 版本

go build -tags web -ldflags="-s -w" -trimpath -o fscan .

调试版本（带 pprof）

go build -tags debug -ldflags="-s -w" -trimpath -o fscan .

[sec404forbidden]

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x0 pc=0x7ff71822fa52]

goroutine 119495 [running]:
crypto/rsa.checkPublicKeySize(0x1?)
crypto/rsa/rsa.go:262 +0x12
crypto/rsa.EncryptPKCS1v15({0x7ff7196cb940, 0xc000050cb0}, 0x0, {0xc0099a3260, 0x20, 0x20?})
crypto/rsa/pkcs1v15.go:47 +0x4f
github.com/shadow1ng/fscan/mylib/grdp/protocol/sec.(*Client).sendClientRandom(0xc0168ab920)
github.com/shadow1ng/fscan/mylib/grdp/protocol/sec/sec.go:681 +0x58b
github.com/shadow1ng/fscan/mylib/grdp/protocol/sec.(*Client).connect(0xc0168ab920, {0xc008c8e4c0, 0x3, 0x4}, {0xc0127ad120, 0x2, 0x2}, 0x3ec, {0xc00e9dc1b0, 0x2, ...})
github.com/shadow1ng/fscan/mylib/grdp/protocol/sec/sec.go:498 +0x3ac
reflect.Value.call({0x7ff718df8140?, 0xc0166235d0?, 0x7ff7196fafc0?}, {0x7ff718fd36c7, 0x4}, {0xc0117cea20, 0x4, 0x4?})
reflect/value.go:581 +0xcc6
reflect.Value.Call({0x7ff718df8140?, 0xc0166235d0?, 0x7ff718d7ac00?}, {0xc0117cea20?, 0x7ff718d7ac00?, 0xc016de6150?})
reflect/value.go:365 +0xb9
github.com/shadow1ng/fscan/mylib/grdp/emission.(*Emitter).callListeners.func1({0x7ff718df8140?, 0xc0166235d0?, 0x0?})
github.com/shadow1ng/fscan/mylib/grdp/emission/emitter.go:243 +0x665
created by github.com/shadow1ng/fscan/mylib/grdp/emission.(*Emitter).callListeners in goroutine 119494
github.com/shadow1ng/fscan/mylib/grdp/emission/emitter.go:201 +0x8b 使用如下命令 fscan.exe -hf test.txt 测试ip 680+

[ZacharyZcR]

panic: runtime error: invalid memory address or nil pointer dereference [signal 0xc0000005 code=0x0 addr=0x0 pc=0x7ff71822fa52]

goroutine 119495 [running]: crypto/rsa.checkPublicKeySize(0x1?) crypto/rsa/rsa.go:262 +0x12 crypto/rsa.EncryptPKCS1v15({0x7ff7196cb940, 0xc000050cb0}, 0x0, {0xc0099a3260, 0x20, 0x20?}) crypto/rsa/pkcs1v15.go:47 +0x4f github.com/shadow1ng/fscan/mylib/grdp/protocol/sec.(*Client).sendClientRandom(0xc0168ab920) github.com/shadow1ng/fscan/mylib/grdp/protocol/sec/sec.go:681 +0x58b github.com/shadow1ng/fscan/mylib/grdp/protocol/sec.(*Client).connect(0xc0168ab920, {0xc008c8e4c0, 0x3, 0x4}, {0xc0127ad120, 0x2, 0x2}, 0x3ec, {0xc00e9dc1b0, 0x2, ...}) github.com/shadow1ng/fscan/mylib/grdp/protocol/sec/sec.go:498 +0x3ac reflect.Value.call({0x7ff718df8140?, 0xc0166235d0?, 0x7ff7196fafc0?}, {0x7ff718fd36c7, 0x4}, {0xc0117cea20, 0x4, 0x4?}) reflect/value.go:581 +0xcc6 reflect.Value.Call({0x7ff718df8140?, 0xc0166235d0?, 0x7ff718d7ac00?}, {0xc0117cea20?, 0x7ff718d7ac00?, 0xc016de6150?}) reflect/value.go:365 +0xb9 github.com/shadow1ng/fscan/mylib/grdp/emission.(*Emitter).callListeners.func1({0x7ff718df8140?, 0xc0166235d0?, 0x0?}) github.com/shadow1ng/fscan/mylib/grdp/emission/emitter.go:243 +0x665 created by github.com/shadow1ng/fscan/mylib/grdp/emission.(*Emitter).callListeners in goroutine 119494 github.com/shadow1ng/fscan/mylib/grdp/emission/emitter.go:201 +0x8b 使用如下命令 fscan.exe -hf test.txt 测试ip 680+

RDP问题，新提交了一个修复，麻烦再测一次