PT-2025-40067 · Linux+1 · Linux Kernel+1

Published 2025-10-01 · Updated 2025-10-01 · CVE-2025-39893

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 related to the spi-qpic-snand driver. Specifically, the on-host hardware ECC engine remains registered even when the spi register controller() function encounters an error during probing or when the device is removed. This can lead to potential use-after-free issues. The issue is addressed by ensuring the ECC engine is unregistered on the error path within the qcom spi probe() function and by adding a missing unregistering call to the qcom spi remove() function.

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

Exploit

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

CVE-2025-39893

Affected Products

Astra Linux

Linux Kernel

References · 13

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39893.json · Exploit
• https://osv.dev/vulnerability/CVE-2025-39893 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-39893 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-39893 · Security Note
• https://git.kernel.org/stable/c/1991a458528588ff34e98b6365362560d208710f · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39893 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39893 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39893 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-39893 · Vendor Advisory
• https://git.kernel.org/stable/c/e4de48e66af17547727bb2e4b1867952817edff7 · Patch
• https://twitter.com/CVEnew/status/1973302183882846415 · Twitter Post
• https://git.kernel.org/linus/1991a458528588ff34e98b6365362560d208710f · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note