Bug 2559761 (CVE-2026-99047) - CVE-2026-99047 kernel: gve: fix XSK buffer leak when rings are stopped
Summary: CVE-2026-99047 kernel: gve: fix XSK buffer leak when rings are stopped
Keywords:
Status: NEW
Alias: CVE-2026-99047
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-23 13:32 UTC by OSIDB Bzimport
Modified: 2026-10-28 04:59 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
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Embargoed:

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Description OSIDB Bzimport 2026-10-23 13:32:06 UTC 
In the Linux kernel, the following vulnerability has been resolved:

gve: fix XSK buffer leak when rings are stopped

GVE does not free XSK buffers when resetting ring state as a part of
stopping queues. This causes all XSK buffers which are posted to the
NIC to be leaked.

Free XSK buffers attached to an allocated buf_state when stopping rings.

This issue was hit in production.
Comment 1 gkamathe 2026-10-28 04:53:09 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-99047.mbox
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