| Name | CVE-2025-40909 |
| Description | Thread creation while a directory handle is open does a fchdir, affecting other threads (race condition) |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1098226 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| perl (PTS) | bullseye | 5.32.1-4+deb11u3 | vulnerable |
| bullseye (security) | 5.32.1-4+deb11u4 | vulnerable |
| bookworm, bookworm (security) | 5.36.0-7+deb12u2 | vulnerable |
| sid, trixie | 5.40.1-3 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| perl | source | (unstable) | (unfixed) | | | 1098226 |
Notes
[bookworm] - perl <postponed> (Minor issue; decide for DSA or no-DSA once upstream lands a fix)
[bullseye] - perl <postponed> (Minor issue, revisit when fixed upstream)
https://github.com/Perl/perl5/issues/23010