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There are currently a set of CVEs out in runc: CVE-2025-31133, CVE-2025-52565, and CVE-2025-52881. These have been patched in 1.2.8, 1.3.3, and the upcoming 1.4.0. In the interest of getting this fix out, this commit pins back to using runc 1.2.x, as we have not had a successful run with 1.3.x yet.
This reverts the test updates in d1b9267 that were necessary for trying to upgrade to runc 1.3.
Previously, we were relying on runc's fallback behavior for these system calls. This started failing after upgrading to runc 1.2.8, at least in the context of our CI containers. Adding them as allowed system calls allows runc to work as before. openat2 was introduced in Linux kernel 5.6, while statx was introduced in 4.15. Explicitly allowing these calls should be fine because the oldest supported stemcell line (Ubuntu Jammy) uses kernel 5.15.
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There are currently a set of CVEs out in runc: CVE-2025-31133, CVE-2025-52565, and CVE-2025-52881. These have been patched in runc 1.2.8, 1.3.3, and the upcoming 1.4.0.
We have been attempting to bump to runc 1.3, but problems keep arising. In the interest of getting these CVE fixes out, this PR pins back to runc 1.2. This should be safer to consume, particularly for users of
bpmwho need the CVE fix. We should address the upgrade to runc 1.3 separately (potentially as a new minor forbpm)The bump to runc 1.2.8 also required us to explicitly add
openat2andstatxas allowed system calls. The previous fallback behavior implemented by runc no longer seems to work in Concourse at least.See also: