PT-2026-34420 · Linux · Linux Kernel

Published 2026-04-22 · Updated 2026-05-15 · CVE-2026-31515

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 An issue exists in the pfkey send migrate() function where it fails to validate old and new families. This can lead to the family argument in set ipsecrequest() being truncated, potentially overfilling the socket buffer (skb) and triggering a crash in the skb put() function.

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

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-31515

ECHO-A018-1CCB-F11E

OESA-2026-2310

OESA-2026-2311

OESA-2026-2312

OESA-2026-2313

OESA-2026-2314

Affected Products

Linux Kernel

References · 73

• https://nvd.nist.gov/vuln/detail/CVE-2026-43214 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31592 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43018 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31523 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31441 · Security Note
• https://osv.dev/vulnerability/OESA-2026-2310 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-43017 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-31515 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31674 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31667 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31624 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31436 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31504 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-43363 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-31630 · Security Note