1.8

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

Received
AliasesUBUNTU-CVE-2026-74448DEBIAN-CVE-2026-74448
Published 15-08-2026Last modified 18-08-2026

Vulnerability summary

CVE-2026-74448 is a low (CVSS 1.8) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 1.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
1.8/10
010
Low · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.17%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
SUSE-SU-2026:5091-1USN-8959-1USN-8960-1

Timeline

  1. 15-08-2026
    PublishedVulnerability first disclosed.
  2. 18-08-2026
    Last modifiedVulnerability information updated.

Description

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)

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 0.21% on 06-10-2026

06-10-202605-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu169 products
  • linuxAll versions (No fix recorded) | < 7.0.0-42.42
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 7.0.0-1016.17
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linux< 6.12.105-1 | < 7.1.8-1
  • linux-6.12< 6.12.107-1~deb12u1
Linux1 product
  • linux≥ 0f88894aa628680747ae27760e5f627f901a435f, < 8924e2594a15bdbd07f8696770864366d787ab70 | ≥ c0ef1c8ef70bfa3487ea84f794d7a1f0fea0735d, < 2ff5bb3645c72b3690e70c513a62a86600c4632f | ≥ fddc45026311c05a5355fd34b9dc0a1d7eaef4a2, < 5f0f2ddeac738e2ca9d12cb76a1ff2904e85ecc3 | ≥ fddc45026311c05a5355fd34b9dc0a1d7eaef4a2, < 7c35bf94150d872e670a6632aa819d320279effb | ≥ fddc45026311c05a5355fd34b9dc0a1d7eaef4a2, < 38b73293f38658a4685ffcea666462024f858ad9 | 9d61e2b81f5fc90c87975879809346e7c90ea5f9 | d86ba913bbfd1afafacbfb750001ffc6bfe29da0 | ≥ 6.6.87, < 6.6.151 | ≥ 6.12.23, < 6.12.103 | ≥ 6.13.11, < 6.14 | ≥ 6.14.2, < 6.15 | 6.15

3 vendors · 172 products

References

12 links
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