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NVD / CVE Program· CNA Linux

CVE-2026-74448: drm/amdkfd: fix QID bit leak in pqm_create_queue()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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).
  • Fixed version: Linux Linux 2ff5bb3645c72b3690e70c513a62a86600c4632f, 38b73293f38658a4685ffcea666462024f858ad9, 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2ff5bb3645c72b3690e70c513a62a86600c4632f, 38b73293f38658a4685ffcea666462024f858ad9, 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1 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: fix QID bit leak in pqm_create_queue() When MES is enabled and amdgpu_amdkfd_alloc_kernel_mem() fails during the first queue creation for a process, pqm_create_queue() returns early via 'return retval' without going through the err_create_queue cleanup label. This means clear_bit(*qid, pqm->queue_slot_bitmap) is never called, leaving the reserved QID bit permanently set in queue_slot_bitmap. Over time this leaks QID slots, potentially exhausting all available queue slots. Fix this by replacing 'return retval' with 'goto err_allocate_pqn' so that clear_bit() is always called on the error path without touching the uninitialized pqn pointer. AILIKFD-813 (cherry picked from commit a107f74c38edbb80d6ab64dcaeeb292c14e9779f)

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 18, 2026
EPSS
0.1% · 6th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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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.

—

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

    • 9d61e2b81f5fc90c87975879809346e7c90ea5f9, d86ba913bbfd1afafacbfb750001ffc6bfe29da0, 6.15affected
    • 0f88894aa628680747ae27760e5f627f901a435f and later · before 8924e2594a15bdbd07f8696770864366d787ab70affected · git
    • c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d and later · before 2ff5bb3645c72b3690e70c513a62a86600c4632faffected · git
    • fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 and later · before 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3affected · git
    • fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 and later · before 7c35bf94150d872e670a6632aa819d320279effbaffected · git
    • fddc45026311c05a5355fd34b9dc0a1d7eaef4a2 and later · before 38b73293f38658a4685ffcea666462024f858ad9affected · git
    • 6.6.87 and later · before 6.6.151affected · semver
    • 6.12.23 and later · before 6.12.103affected · semver
    • 6.13.11 and later · before 6.14affected · semver
    • 6.14.2 and later · before 6.15affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.8-17.1.8-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-74441Aug 15, 2026 · usb: typec: ucsi: Fix race condition and ordering in port unregistration
    0Monitor
  • ← EarlierCVE-2026-74442Aug 15, 2026 · drm/vmwgfx: avoid destroy_workqueue(NULL) on vkms init failure
    0Monitor
  • Later →CVE-2026-74451Aug 15, 2026 · drm/panthor: validate firmware interface structure sizes
    31Monitor

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 Linux2ff5bb3645c72b3690e70c513a62a86600c4632fVendor (CNA)
Linux Linux38b73293f38658a4685ffcea666462024f858ad9Vendor (CNA)
Linux Linux5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3Vendor (CNA)
Linux Linux6.12.103Vendor (CNA)
Linux Linux6.14Vendor (CNA)
Linux Linux6.15Vendor (CNA)
Linux Linux6.6.151Vendor (CNA)
Linux Linux7c35bf94150d872e670a6632aa819d320279effbVendor (CNA)
Linux Linux8924e2594a15bdbd07f8696770864366d787ab70Vendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.06.6.152.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.12.105-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.107-1~deb12u1 · Debian:12Package 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

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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✗ → ✓

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References

Show all references (4 more)

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

All records