diff --git a/src/agent/src/main.rs b/src/agent/src/main.rs index 595951bc5ead..d7d2aaf19990 100644 --- a/src/agent/src/main.rs +++ b/src/agent/src/main.rs @@ -248,6 +248,7 @@ fn main() -> std::result::Result<(), Box> { } if args.len() == 2 && args[1] == "init" { + reset_sigpipe(); rustjail::container::init_child(); exit(0); } @@ -358,5 +359,16 @@ fn sethostname(hostname: &OsStr) -> Result<()> { } } +// The Rust standard library had suppressed the default SIGPIPE behavior, +// see https://github.com/rust-lang/rust/pull/13158. +// Since the parent's signal handler would be inherited by it's child process, +// thus we should re-enable the standard SIGPIPE behavior as a workaround to +// fix the issue of https://github.com/kata-containers/kata-containers/issues/1887. +fn reset_sigpipe() { + unsafe { + libc::signal(libc::SIGPIPE, libc::SIG_DFL); + } +} + use crate::config::AgentConfig; use std::os::unix::io::{FromRawFd, RawFd};