Vulnerability-Lookup

GHSA-CMPJ-RG49-J7HV

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-27 21:30

Details

In the Linux kernel, the following vulnerability has been resolved:

rxrpc: Fix key parsing memleak

In rxrpc_preparse_xdr_yfs_rxgk(), the memory attached to token->rxgk can be leaked in a few error paths after it's allocated.

Fix this by freeing it in the "reject_token:" case.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
    "CVE-2026-31643"
  ],
  "database_specific": {
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      "CWE-401"
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    "github_reviewed": false,
    "github_reviewed_at": null,
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  "id": "GHSA-cmpj-rg49-j7hv",
  "modified": "2026-04-27T21:30:49Z",
  "published": "2026-04-24T15:32:36Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31643"
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      "url": "https://git.kernel.org/stable/c/b555912b9b21075e8298015f888ffe3ff60b1a97"
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}

CVE-2026-31643 (GCVE-0-2026-31643)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:44 – Updated: 2026-05-11 22:12

Title

rxrpc: Fix key parsing memleak

Summary

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix key parsing memleak In rxrpc_preparse_xdr_yfs_rxgk(), the memory attached to token->rxgk can be leaked in a few error paths after it's allocated. Fix this by freeing it in the "reject_token:" case.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/d5f76f812d2c0ea6d…
https://git.kernel.org/stable/c/01f51318feb626dee…
https://git.kernel.org/stable/c/b555912b9b21075e8…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < d5f76f812d2c0ea6dd651b0586be49e85ecca085 (git) Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < 01f51318feb626deee1d0c8a190198cd7857d599 (git) Affected: 0ca100ff4df64f5d0f6c1dd5080c3e096786bea6 , < b555912b9b21075e8298015f888ffe3ff60b1a97 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.23 , ≤ 6.18.* (semver) Unaffected: 6.19.13 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-CMPJ-RG49-J7HV

CVE-2026-31643 (GCVE-0-2026-31643)

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