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In the Linux kernel, the following vulnerability has been resolved: gve: fix XSK buffer leak on error descriptor When the error bit is set in the RX… (CVE-2026-99046)

0
Medium
Published: 10/23/2026 (10/23/2026, 15:31:36 UTC)
Source: GCVE Database

Description

A vulnerability in the Linux kernel's gve driver related to AF_XDP zero-copy (ZC) mode caused a buffer leak when the error bit was set in the RX completion descriptor. The issue was that the XSK buffer was not freed properly on error, leading to resource leakage. This vulnerability has been resolved in the Linux kernel.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/23/2026, 18:52:13 UTC

Technical Analysis

The Linux kernel's gve driver had a vulnerability where, if the error bit was set in the RX completion descriptor, the buffer state and its attached buffer should have been freed. However, in the case of AF_XDP zero-copy mode, the XSK buffer was not freed, causing a buffer leak. This defect was identified and fixed, eliminating the leak.

Potential Impact

The vulnerability causes a buffer leak in the kernel when error conditions occur in the RX completion descriptor for AF_XDP zero-copy mode. This could lead to resource exhaustion over time, potentially degrading system performance or stability. No information about active exploitation or direct compromise is provided.

Mitigation Recommendations

This issue has been resolved in the Linux kernel. Users should apply the official Linux kernel update that includes the fix for this vulnerability. No additional mitigation steps are indicated.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
GHSA-fx6x-79c6-q94v
Osv Schema Version
1.4.0
Aliases
["CVE-2026-99046"]

Threat ID: 6adbaaced73cc49347b2051f

Added to database: 10/23/2026, 18:43:26 UTC

Last enriched: 10/23/2026, 18:52:13 UTC

Last updated: 10/24/2026, 00:25:09 UTC

Views: 3

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