xsk: Add missing overflow check in xdp_umem_reg (CVE-2023-53080) | HOL Guard CVE

High · CVSS 7.8CVE-2023-53080

xsk: Add missing overflow check in xdp_umem_reg

Answer in brief

CVE-2023-53080 records a High severity (CVSS 7.8) vulnerability in xsk: Add missing overflow check in xdp_umem_reg. 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 May 2, 2025Updated Aug 5, 2026Source checked Aug 5, 2026First seen by HOL Aug 4, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 6 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. 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.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:o:linux:linux_kernel::::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.3:rc1::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.3:rc2::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.3:rc3::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=bbff2f321a864ee07c9d3d1245af498023146951 <580634b03a55f04a3c1968bcbd97736c079c6601 \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <3cfc3564411acf96bf2fb791f706a1aa4f872c1d \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <a069909acc4435eeb41d05ccc03baa447cc01b7e \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <bb2e3bfb2a79db0c2057c6f701b782954394c67f \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <c7df4813b149362248d6ef7be41a311e27bf75fe	580634b03a55f04a3c1968bcbd97736c079c6601, 3cfc3564411acf96bf2fb791f706a1aa4f872c1d, a069909acc4435eeb41d05ccc03baa447cc01b7e, bb2e3bfb2a79db0c2057c6f701b782954394c67f, c7df4813b149362248d6ef7be41a311e27bf75fe
Linux/Linuxgeneric	4.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 580634b03a55f04a3c1968bcbd97736c079c6601 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 2, 2025
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 4, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: xsk: Add missing overflow check in xdp_umem_reg The number of chunks can overflow u32. Make sure to return -EINVAL on overflow. Also remove a redundant u32 cast assigning umem->npgs.

Quoted source text, attributed separately from HOL analysis.

Back to active CVEs

High · CVSS 7.8CVE-2023-53080

xsk: Add missing overflow check in xdp_umem_reg

Answer in brief

Analysis pending evidence review

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

Published May 2, 2025Updated Aug 5, 2026Source checked Aug 5, 2026First seen by HOL Aug 4, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.8
Exploitation: Not marked as known exploited
Affected software: 6 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.8. 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.

Affected products and reported versions
Product	Affected versions	Fixed versions
cpe:2.3:o:linux:linux_kernel::::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.3:rc1::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.3:rc2::::::	Not reported	Not reported
cpe:2.3:o:linux:linux_kernel:6.3:rc3::::::	Not reported	Not reported

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=bbff2f321a864ee07c9d3d1245af498023146951 <580634b03a55f04a3c1968bcbd97736c079c6601 \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <3cfc3564411acf96bf2fb791f706a1aa4f872c1d \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <a069909acc4435eeb41d05ccc03baa447cc01b7e \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <bb2e3bfb2a79db0c2057c6f701b782954394c67f \|\| >=bbff2f321a864ee07c9d3d1245af498023146951 <c7df4813b149362248d6ef7be41a311e27bf75fe	580634b03a55f04a3c1968bcbd97736c079c6601, 3cfc3564411acf96bf2fb791f706a1aa4f872c1d, a069909acc4435eeb41d05ccc03baa447cc01b7e, bb2e3bfb2a79db0c2057c6f701b782954394c67f, c7df4813b149362248d6ef7be41a311e27bf75fe
Linux/Linuxgeneric	4.18	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 580634b03a55f04a3c1968bcbd97736c079c6601 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
May 2, 2025
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 4, 2026

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.

xsk: Add missing overflow check in xdp_umem_reg

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs

xsk: Add missing overflow check in xdp_umem_reg

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs