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

rxrpc: Fix leak of rxgk context in rxgk_verify_response()

Fix rxgk_verify_response() to clean up the rxgk context it creates.
Published: 2026-04-24
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Memory Leak
Action: Apply Patch
AI Analysis

Impact

The vulnerability arises in the Linux kernel's rxrpc networking subsystem, where the rxgk_verify_response() function fails to free the rxgk context it creates, resulting in a memory leak. This defect leads to unnecessary consumption of kernel memory resources, potentially degrading system performance or causing a denial‑of‑service if the leak accumulates over time. The issue is identified as a memory leak and a resource exhaustion condition, reflecting CWE‑401 and CWE‑772 weaknesses.

Affected Systems

The flaw is present in the Linux kernel, specifically in version 6.16 and all 7.0 release‑candidate builds from rc1 through rc7. It affects any distribution or system running these kernel versions that has the rxrpc module enabled, which is common in standard Linux deployments.

Risk and Exploitability

The CVSS score of 5.5 indicates a moderate risk, and an EPSS score of less than 1 % suggests that exploitation attempts are unlikely at present. The vulnerability is not listed in the CISA KEV catalog. The main attack vector, while not explicitly defined in the report, is inferred to involve sending crafted or malformed rxrpc responses to a target system, which would trigger the memory‑leak condition. Because the flaw only consumes kernel memory, it does not provide remote code execution or privilege escalation, but repeated exploitation could lead to resource exhaustion or a system crash.

Generated by OpenCVE AI on April 28, 2026 at 13:54 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update your system to a Linux kernel release that includes the rxgk context leak fix, such as any recent 6.16 update or any 7.0 rc build that contains the patch.
  • Restart the host or affected services to ensure the patched kernel is active and no stale rxgk contexts remain in memory.
  • If immediate kernel upgrade is not possible, consider disabling the rxrpc protocol or unloading the related module to prevent further context leaks while monitoring system memory usage and inspecting kernel logs for rxrpc‑related warnings.

Generated by OpenCVE AI on April 28, 2026 at 13:54 UTC.

Tracking

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Advisories

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History

Mon, 27 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-401
CPEs cpe:2.3:o:linux:linux_kernel:6.16:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Sat, 25 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-772
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate


Fri, 24 Apr 2026 15:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix leak of rxgk context in rxgk_verify_response() Fix rxgk_verify_response() to clean up the rxgk context it creates.
Title rxrpc: Fix leak of rxgk context in rxgk_verify_response()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-11T22:12:34.136Z

Reserved: 2026-03-09T15:48:24.125Z

Link: CVE-2026-31632

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-04-24T15:16:42.517

Modified: 2026-04-27T20:30:38.720

Link: CVE-2026-31632

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-24T00:00:00Z

Links: CVE-2026-31632 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-28T14:00:16Z

Weaknesses