PT-2025-34395 · Linux+1 · Linux Kernel+1

Guodong Xu · Published 2025-06-12 · Updated 2025-08-22 · CVE-2025-38633

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Linux kernel (affected versions not specified)

Description: A flaw exists in the Linux kernel where the pll1 d8 clock could be disabled during probe deferral, leading to a system hang. This occurred because disabling the CLK DMA clock, a parent of pll1 d8, reduced the enable count of pll1 d8 to zero, causing it to be disabled. Marking the clock as critical prevents it from being disabled.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Initialization

Weakness Enumeration

CWE-665

Related Identifiers

BDU:2026-03082

CVE-2025-38633

Affected Products

Astra Linux

Linux Kernel

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38633.json · Exploit
• https://git.kernel.org/stable/c/10948c00e548e9ad2ce9d765baf26dce2d9b806b · Patch
• https://osv.dev/vulnerability/CVE-2025-38633 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-38633 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-38633 · Security Note
• https://ubuntu.com/security/CVE-2025-38633 · Vendor Advisory
• https://git.kernel.org/stable/c/7554729de27daf6d54bcf8689d863bbe267828bf · Patch
• https://cve.org/CVERecord?id=CVE-2025-38633 · Security Note
• https://bdu.fstec.ru/vul/2026-03082 · Security Note
• https://twitter.com/CVEnew/status/1958933921015476461 · Twitter Post
• https://git.kernel.org/linus/7554729de27daf6d54bcf8689d863bbe267828bf · Note
• https://lore.kernel.org/linux-cve-announce/2025082232-CVE-2025-38633-3b1d@gregkh · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note