PT-2025-38565 · Linux+2 · Linux Kernel+2

Published 2025-04-16 · Updated 2025-09-19 · CVE-2025-39858

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 was discovered in the Linux kernel’s mlx4 network driver. An incorrect check after calling page pool create() could lead to an invalid pointer dereference. Specifically, a NULL check was used instead of an IS ERR() check, which returns error pointers.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-13681

CVE-2025-39858

Affected Products

Astra Linux

Linux Kernel

Mlx4

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39858.json · Exploit
• https://cve.org/CVERecord?id=CVE-2025-39858 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39858 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13681 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39858 · Security Note
• https://osv.dev/vulnerability/CVE-2025-39858 · Vendor Advisory
• https://git.kernel.org/stable/c/7b77d8841a98a9f45c8a615222c698df8dec581c · Patch
• https://git.kernel.org/stable/c/e580beaf43d563aaf457f1c7f934002355ebfe7b · Patch
• https://security-tracker.debian.org/tracker/CVE-2025-39858 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39858 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39858 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7b77d8841a98a9f45c8a615222c698df8dec581c · Note
• https://twitter.com/CVEnew/status/1969110862188462547 · Twitter Post
• https://git.kernel.org/linus/e580beaf43d563aaf457f1c7f934002355ebfe7b · Note