MEDIUM4.8
GO-2022-0289
Misdirected I/O in syscall
Quick fix
GO-2022-0289 — stdlib: upgrade to the fixed version with the command below.
go get stdlib@v1.16.12Details
When a Go program running on a Unix system is out of file descriptors and calls syscall.ForkExec (including indirectly by using the os/exec package), syscall.ForkExec can close file descriptor 0 as it fails. If this happens (or can be provoked) repeatedly, it can result in misdirected I/O such as writing network traffic intended for one connection to a different connection, or content intended for one file to a different one.
For users who cannot immediately update to the new release, the bug can be mitigated by raising the per-process file descriptor limit.
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