PT-2025-8909 · Linux+1 · Linux Kernel+1

Yan Kang + 1 · Published 2025-01-21 · Updated 2025-03-13 · CVE-2025-21797

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description A use-after-free issue was found in the Linux kernel, specifically in the corsair-void module, due to a missing call to cancel delayed work sync(). This caused a problem when the corsair void remove() function was called.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-03666

CVE-2025-21797

Affected Products

Astra Linux

Linux Kernel

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21797.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-21797 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-21797 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03666 · Security Note
• https://git.kernel.org/stable/c/2dcb56a0a4da6946f6c18288da595c13e0d2af86 · Patch
• https://osv.dev/vulnerability/CVE-2025-21797 · Vendor Advisory
• https://git.kernel.org/stable/c/48e487b002891eb0aeaec704c9bed51f028deff1 · Patch
• https://cve.org/CVERecord?id=CVE-2025-21797 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21797 · Security Note
• https://twitter.com/CVEnew/status/1895241234391998584 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2025022610-CVE-2025-21797-04ee@gregkh · Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.4 · Note
• https://t.me/cvedetector/19003 · Telegram Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://twitter.com/dailycve/status/1900310003753324681 · Twitter Post