PT-2025-36414 · Linux+1 · Linux Kernel+1

Syszbot · Published 2025-06-23 · Updated 2025-09-07 · CVE-2025-39733

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 The Linux kernel contained an issue where the team lock experienced ordering issues with lower instance locks. The team lock was replaced with an rtnl lock, similar to the bonding implementation, to address this. This change was based on a patch by Tetsuo Handa.

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

Exploit

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

BDU:2026-03091

CVE-2025-39733

Affected Products

Astra Linux

Linux Kernel

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39733.json · Exploit
• https://git.kernel.org/stable/c/53edc761c9911f597b6d701e846f6e84f15eaa6d · Patch
• https://git.kernel.org/stable/c/556a4337ba3e9a70e1e3a428e8465c3ea3c4aa41 · Patch
• https://osv.dev/vulnerability/CVE-2025-39733 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03091 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39733 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-39733 · Security Note
• https://git.kernel.org/stable/c/bfb4fb77f9a8ce33ce357224569eae5564eec573 · Patch
• https://ubuntu.com/security/CVE-2025-39733 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39733 · Security Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.15.10 · Note
• https://twitter.com/CVEnew/status/1964712355029299246 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://lore.kernel.org/linux-cve-announce/2025090730-CVE-2025-39733-0de4@gregkh · Note
• https://git.kernel.org/linus/bfb4fb77f9a8ce33ce357224569eae5564eec573 · Note