PT-2025-34402 · Linux+1 · Linux Kernel+1

Published 2025-07-05 · Updated 2025-08-22 · CVE-2025-38641

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 Bluetooth component of the Linux kernel related to btusb. A potential NULL pointer dereference can occur due to an improper handling of kmalloc allocation failures. Specifically, the return value of kmalloc is not checked, which could lead to a dereference of a NULL pointer if memory allocation fails.

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:2026-02856

CVE-2025-38641

Affected Products

Astra Linux

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38641.json · Exploit
• https://ubuntu.com/security/CVE-2025-38641 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-38641 · Vendor Advisory
• https://git.kernel.org/stable/c/5029d80bfc30b60ff57c70ccb04e027acb404f6a · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-38641 · Vendor Advisory
• https://git.kernel.org/stable/c/b505902c66a282dcb01bcdc015aa1fdfaaa075db · Patch
• https://bdu.fstec.ru/vul/2026-02856 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-38641 · Security Note
• https://cve.org/CVERecord?id=CVE-2025-38641 · Security Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://access.redhat.com/security/cve/cve-2025-38641 · Note
• https://twitter.com/CVEnew/status/1958933911997661630 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025082234-CVE-2025-38641-21d7@gregkh · Note
• https://git.kernel.org/linus/b505902c66a282dcb01bcdc015aa1fdfaaa075db · Note