CVE-2025-39747: drm/msm: Add error handling for krealloc in metadata setup

mediumCVSS 5.5CVE-2025-39747

CSIRTS triage

vendor: Qualcomm product: Linux DRM MSM driver Denial of service

What: Missing error handling for krealloc failure in metadata setup function.
Who is affected: Linux systems with Qualcomm MSM display hardware.
Urgency: Medium priority; CVSS 5.5, potential memory failure handling.
Action: Update Linux kernel to include proper error handling.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-39747

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-397470.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-39747	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[UPDATE] [high] Linux Kernel: Multiple vulnerabilities allow denial of servicecert-bund

Recent advisories for drm/msm

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2025-40247: drm/msm: Fix pgtable prealloc error pathmsrc · 2026-08-06
highCVE-2026-64153: In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix iommu_map_sgt…nvd · 2026-07-19
unknownCVE-2026-64100: In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix shrinker dead…nvd · 2026-07-19
unknownCVE-2026-53377: In the Linux kernel, the following vulnerability has been resolved: drm/msm: always recover th…nvd · 2026-07-19
mediumCVE-2026-53377: drm/msm: always recover the gpumsrc · 2026-07-14