net: enetc: check the number of BDs needed for xdp_frame (CVE-2026-72399) | HOL Guard CVE

Critical · CVSS 9.8CVE-2026-72399

net: enetc: check the number of BDs needed for xdp_frame

Answer in brief

CVE-2026-72399 records a Critical severity (CVSS 9.8) vulnerability in net: enetc: check the number of BDs needed for xdp_frame. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 15, 2026Updated Aug 17, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 17, 2026

Upstream Advisory

Key facts

Risk: Critical · CVSS 9.8
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=9d2b68cc108db2fdb35022ed2d88cfb305c441a6 <1ecb199b0e6d12ab6c26c0b7edf1a8f4472d9aed \|\| >=9d2b68cc108db2fdb35022ed2d88cfb305c441a6 <f55276160ffad3e235b657ee4b7304eb99b90e5c \|\| >=9d2b68cc108db2fdb35022ed2d88cfb305c441a6 <cfbc6e9b84dcc0aa2d65c84ea4745af327763209 \|\| >=9d2b68cc108db2fdb35022ed2d88cfb305c441a6 <1681cc7974a6123f5d5740b03bc11e4784bd2542 \|\| >=9d2b68cc108db2fdb35022ed2d88cfb305c441a6 <d22829101ab675607ad6c3d420fb3ab875f46bbb \|\| >=9d2b68cc108db2fdb35022ed2d88cfb305c441a6 <555c5475e787802eeae0d2b91c2f66c330db2767	1ecb199b0e6d12ab6c26c0b7edf1a8f4472d9aed, f55276160ffad3e235b657ee4b7304eb99b90e5c, cfbc6e9b84dcc0aa2d65c84ea4745af327763209, 1681cc7974a6123f5d5740b03bc11e4784bd2542, d22829101ab675607ad6c3d420fb3ab875f46bbb, 555c5475e787802eeae0d2b91c2f66c330db2767
Linux/Linuxgeneric	5.13	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 1ecb199b0e6d12ab6c26c0b7edf1a8f4472d9aed if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: net: enetc: check the number of BDs needed for xdp_frame The size of xdp_redirect_arr array is ENETC_MAX_SKB_FRAGS. However, the number of fragments contained in xdp_frame may be greater than or equal to ENETC_MAX_SKB_FRAGS, which will cause the access to xdp_redirect_arr to be out of bounds.

Quoted source text, attributed separately from HOL analysis.