PT-2026-32343 · Linux · Linux Kernel

Published 2026-04-13 · Updated 2026-05-20 · CVE-2026-31417

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/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 overflow occurs when accumulating packets in the net/x25 component. The issue is caused by a lack of validation to ensure that the x25 sock.fraglen variable does not overflow. Additionally, the fraglen variable is not properly reset when purging the fragment queue within the x25 clear queues() function.

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

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

CVE-2026-31417

ECHO-A9F1-E217-840B

Affected Products

Linux Kernel

References · 22

• https://nvd.nist.gov/vuln/detail/CVE-2026-31417 · Security Note
• https://git.kernel.org/stable/c/798d613afb64b01a203f448fb0f43c37c6afe79d · Patch
• https://git.kernel.org/stable/c/8c92969c197b91c134be27dc3afb64ab468853a9 · Patch
• https://git.kernel.org/stable/c/96fc16370b0bceb289c7e0479bd0540b81e257aa · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31417 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31417 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2026-31417 · Vendor Advisory
• https://git.kernel.org/stable/c/1734bd85c5e0a7a801295b729efb56b009cb8fc3 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2026-31417 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31417 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-31417 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2026-31417 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31417 · Vendor Advisory
• https://git.kernel.org/stable/c/4e2d1bcef78d21247fe8fef13bc7ed95885df2b5 · Patch
• https://git.kernel.org/stable/c/6e568835ea54a3e1d08e310e34f95d434e739477 · Patch