[GH-ISSUE #3920] frpc 0.53.0 crash

gitea-mirror commented

2026-05-05 14:00:53 -06:00

Owner

Originally created by @gdevenyi on GitHub (Jan 8, 2024).
Original GitHub issue: https://github.com/fatedier/frp/issues/3920

Bug Description

2024/01/04 17:59:07 [I] [proxy_wrapper.go:239] [a81ac4e809a6f62e] [SSH2] health check success
panic: close of closed channel

goroutine 65 [running]:
github.com/fatedier/frp/client.(*Service).loopLoginUntilSuccess.func1()
        github.com/fatedier/frp/client/service.go:331 +0x517
github.com/fatedier/frp/pkg/util/wait.BackoffUntil(0xc000395e30, {0xd2f4a0, 0xc0002de2d0}, 0x1, 0xc000292720)
        github.com/fatedier/frp/pkg/util/wait/backoff.go:135 +0x118
github.com/fatedier/frp/client.(*Service).loopLoginUntilSuccess(0xc0001fc1c0, 0x4a817c800, 0x0)
        github.com/fatedier/frp/client/service.go:336 +0x1e9
github.com/fatedier/frp/client.(*Service).keepControllerWorking.func1()
        github.com/fatedier/frp/client/service.go:198 +0x32
github.com/fatedier/frp/pkg/util/wait.BackoffUntil(0xc000395fa8, {0xd2f4a0, 0xc00049c000}, 0x1, 0xc0000b2300)
        github.com/fatedier/frp/pkg/util/wait/backoff.go:135 +0x118
github.com/fatedier/frp/client.(*Service).keepControllerWorking(0xc0001fc1c0)
        github.com/fatedier/frp/client/service.go:195 +0x165
created by github.com/fatedier/frp/client.(*Service).Run
        github.com/fatedier/frp/client/service.go:173 +0x159

frpc Version

0.53.0

frps Version

0.53.0

System Architecture

linux/amd64

Configurations

frps.toml

bindPort = 7000
# Specify a UDP port for KCP.
#kcpBindPort = 7000
#quic_bind_port = 7000

webServer.port = REDACTED
# dashboard's username and password are both optional
webServer.user = "REDACTED"
webServer.password = "REDACTED"
auth.token = "REDACTED"

log.to = "./frps.log"
# trace, debug, info, warn, error
log.level = "info"
log.maxDays = 3

serverAddr = "REDACTED"
serverPort = 7000
#transport.protocol = "kcp"
#transport.protocol = "quic"
auth.token = "REDACTED"
loginFailExit = false

[[proxies]]
name = "SSH"
type = "tcp"
localIP = "127.0.0.1"
localPort = 22
remotePort = REDACTED
transport.useEncryption = true
healthCheck.type = "tcp"

[[proxies]]
name = "SSH2"
type = "tcp"
localIP = "127.0.0.1"
localPort = 22
remotePort = REDACTED
transport.useEncryption = true
healthCheck.type = "tcp"

Logs

Nothing except for original bug of interest, regular operation.

Steps to reproduce

No special steps taken.

Affected area

Docs
Installation
Performance and Scalability
Security
User Experience
Test and Release
Developer Infrastructure
Client Plugin
Server Plugin
Extensions
Others

Originally created by @gdevenyi on GitHub (Jan 8, 2024). Original GitHub issue: https://github.com/fatedier/frp/issues/3920 ### Bug Description ``` 2024/01/04 17:59:07 [I] [proxy_wrapper.go:239] [a81ac4e809a6f62e] [SSH2] health check success panic: close of closed channel goroutine 65 [running]: github.com/fatedier/frp/client.(*Service).loopLoginUntilSuccess.func1() github.com/fatedier/frp/client/service.go:331 +0x517 github.com/fatedier/frp/pkg/util/wait.BackoffUntil(0xc000395e30, {0xd2f4a0, 0xc0002de2d0}, 0x1, 0xc000292720) github.com/fatedier/frp/pkg/util/wait/backoff.go:135 +0x118 github.com/fatedier/frp/client.(*Service).loopLoginUntilSuccess(0xc0001fc1c0, 0x4a817c800, 0x0) github.com/fatedier/frp/client/service.go:336 +0x1e9 github.com/fatedier/frp/client.(*Service).keepControllerWorking.func1() github.com/fatedier/frp/client/service.go:198 +0x32 github.com/fatedier/frp/pkg/util/wait.BackoffUntil(0xc000395fa8, {0xd2f4a0, 0xc00049c000}, 0x1, 0xc0000b2300) github.com/fatedier/frp/pkg/util/wait/backoff.go:135 +0x118 github.com/fatedier/frp/client.(*Service).keepControllerWorking(0xc0001fc1c0) github.com/fatedier/frp/client/service.go:195 +0x165 created by github.com/fatedier/frp/client.(*Service).Run github.com/fatedier/frp/client/service.go:173 +0x159 ``` ### frpc Version 0.53.0 ### frps Version 0.53.0 ### System Architecture linux/amd64 ### Configurations frps.toml ``` bindPort = 7000 # Specify a UDP port for KCP. #kcpBindPort = 7000 #quic_bind_port = 7000 webServer.port = REDACTED # dashboard's username and password are both optional webServer.user = "REDACTED" webServer.password = "REDACTED" auth.token = "REDACTED" log.to = "./frps.log" # trace, debug, info, warn, error log.level = "info" log.maxDays = 3 ``` ``` serverAddr = "REDACTED" serverPort = 7000 #transport.protocol = "kcp" #transport.protocol = "quic" auth.token = "REDACTED" loginFailExit = false [[proxies]] name = "SSH" type = "tcp" localIP = "127.0.0.1" localPort = 22 remotePort = REDACTED transport.useEncryption = true healthCheck.type = "tcp" [[proxies]] name = "SSH2" type = "tcp" localIP = "127.0.0.1" localPort = 22 remotePort = REDACTED transport.useEncryption = true healthCheck.type = "tcp" ``` ### Logs Nothing except for original bug of interest, regular operation. ### Steps to reproduce No special steps taken. ### Affected area - [ ] Docs - [ ] Installation - [X] Performance and Scalability - [ ] Security - [ ] User Experience - [ ] Test and Release - [ ] Developer Infrastructure - [ ] Client Plugin - [ ] Server Plugin - [ ] Extensions - [ ] Others