PT-2026-34986 · Linux · Linux Kernel

Published 2026-04-24 · Updated 2026-04-28 · CVE-2026-31634

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 reference count leak exists in the rxrpc server keyring() function. This issue occurs because the system fails to check if rx->securities is already set before proceeding.

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

Related Identifiers

CVE-2026-31634

ECHO-8014-1F90-81E3

Affected Products

Linux Kernel

References · 18

• https://nvd.nist.gov/vuln/detail/CVE-2026-31634 · Security Note
• https://ubuntu.com/security/CVE-2026-31634 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-31634 · Vendor Advisory
• https://git.kernel.org/stable/c/9ce36d28f67c2a477a7e2f03480de3f6783fb363 · Patch
• https://git.kernel.org/stable/c/139c750bf06649097d98b0bc41e2a678b4627e27 · Patch
• https://git.kernel.org/stable/c/c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2 · Patch
• https://git.kernel.org/stable/c/8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-31634 · Vendor Advisory
• https://git.kernel.org/stable/c/12de9e0e0b0b7058be7dfb8a5927eb565bc25780 · Patch
• https://git.kernel.org/stable/c/fc76d0bd00850b7372f0a4a319c0c60f80487632 · Patch
• https://git.kernel.org/stable/c/f125846ee79fcae537a964ce66494e96fa54a6de · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-31634 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-31634 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-31634 · Vendor Advisory
• https://twitter.com/CVEnew/status/2047731951734341812 · Twitter Post