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nftables binding to an already bound chain

GHSA-jr8j-2jhp-m67v

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (github.com/siderolabs/talos 1.2.0), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Impact An issue was discovered in net/netfilter/nftablesapi.c in the Linux kernel. A denial of service can occur upon binding to an already bound chain. Affected by this vulnerability is the function nftverdictinit of the file net/netfilter/nftablesapi.c. The manipulation with an unknown input leads to a denial of service vulnerability. The program does not release or incorrectly releases a resource before it is made available for re-use. Patches The fix has been backported to 5.15.64 version of the upstream Linux kernel (5.15 is the upstream Kernel long term version Talos ships with). Talos = v1.2.0 is shipped with Linux Kernel 5.15.64 fixing the above issue. Workarounds It's recommended to upgrade References - https://www.sesin.at/2022/09/02/cve-2022-39190-linux-kernel-up-to-5-19-5-nftablesapi-c-nftverdictinit-denial-of-service/ - https://nvd.nist.gov/vuln/detail/CVE-2022-39190 For more information - Email us at security@siderolabs.com

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-jr8j-2jhp-m67v

Agent brief

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# Patch Next advisory brief: GHSA-jr8j-2jhp-m67v

Advisory: nftables binding to an already bound chain
IDs: GHSA-jr8j-2jhp-m67v
Record: https://patchnext.com/advisories/ghsa-jr8j-2jhp-m67v (revision 1, source checked 26 Oct 2026, 14:54 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/siderolabs/talos 1.2.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/siderolabs/talos: affected < 1.2.0; fixed in 1.2.0

## Suggested inspection (read-only)
- Go github.com/siderolabs/talos: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/siderolabs/talos.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-jr8j-2jhp-m67v (GitHub-reviewed advisory GHSA-jr8j-2jhp-m67v lists affected ranges: Go github.com/siderolabs/talos >=0 <1.2.0)

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