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CVE-2026-53376· NVD / CVE Program· CNA Linux

drm/amdkfd: Add upper bound check for num_of_nodes

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 44d5a450c04d3d734c13a03561c3131020d66edf, 4a8093c7def141cc6e854fbe3f9693867982418f, 6ba6ec5fcbb0d03ca11ed1cc38d57a7deb6c6b20.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 44d5a450c04d3d734c13a03561c3131020d66edf, 4a8093c7def141cc6e854fbe3f9693867982418f, 6ba6ec5fcbb0d03ca11ed1cc38d57a7deb6c6b20 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Add upper bound check for num_of_nodes drm/amdkfd: Add upper bound check for num_of_nodes in kfd_ioctl_get_process_apertures_new. (cherry picked from commit 98ff46a5ea090c14d2cdb4f5b993b05d74f3949f)

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 19, 2026
Updated
Jul 29, 2026
EPSS
0.1% · 5th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-53376

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.17 and later · before 6.6.140
  • linux linux kernel6.7 and later · before 6.12.90
  • linux linux kernel6.13 and later · before 6.18.32
  • linux linux kernel6.19 and later · before 7.0.9

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.17affected
    • c7bcbfa4f8d1e0e1078adfe959d4b65542bccf66 and later · before 4a8093c7def141cc6e854fbe3f9693867982418faffected · git
    • c7bcbfa4f8d1e0e1078adfe959d4b65542bccf66 and later · before 6ba6ec5fcbb0d03ca11ed1cc38d57a7deb6c6b20affected · git
    • c7bcbfa4f8d1e0e1078adfe959d4b65542bccf66 and later · before 44d5a450c04d3d734c13a03561c3131020d66edfaffected · git
    • c7bcbfa4f8d1e0e1078adfe959d4b65542bccf66 and later · before 7b80137eb8aa9d1cbfe7ccf3eeb1faa94ae35d7eaffected · git
    • c7bcbfa4f8d1e0e1078adfe959d4b65542bccf66 and later · before 74b73fa56a395d46745e4f245225963e9f8be7f1affected · git
    • before 4.17not affected · semver
    • 6.6.140 and later · up to and including 6.6.*not affected · semver
    • 6.12.90 and later · up to and including 6.12.*not affected · semver
    • 6.18.32 and later · up to and including 6.18.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:13linuxbefore 6.12.90-16.12.90-1
Debian:14linuxbefore 7.0.9-17.0.9-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-53372Jul 19, 2026 · iommu/vt-d: Block PASID attachment to nested domain with dirty tracking
    22Monitor
  • ← EarlierCVE-2026-53373Jul 19, 2026 · mm/vma: do not try to unmap a VMA if mmap_prepare() invoked from mmap()
    31Monitor
  • Later →CVE-2026-53378Jul 19, 2026 · drm/colorop: Fix blob property reference tracking in state lifecycle
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux44d5a450c04d3d734c13a03561c3131020d66edfVendor (CNA)
Linux Linux4a8093c7def141cc6e854fbe3f9693867982418fVendor (CNA)
Linux Linux6ba6ec5fcbb0d03ca11ed1cc38d57a7deb6c6b20Vendor (CNA)
Linux Linux74b73fa56a395d46745e4f245225963e9f8be7f1Vendor (CNA)
Linux Linux7b80137eb8aa9d1cbfe7ccf3eeb1faa94ae35d7eVendor (CNA)
debian:linux6.12.90-1 · Debian:13Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records