SEPTEMBER 8, 2026
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Case File

CVE-2026-63986

UNKNOWN · CVSS N/A EPSS 0.17%

Source: NVD + CISA KEV + EPSS · Published 2026-07-19 · Last synced 2026-08-18

CyberRota Analysis

AI-Generated

A vulnerability in the Linux kernel's ethtool component could lead to a crash when an error occurs during the preparation of a generic netlink message. If the ethnl_tsinfo_prepare_dump() function fails, the subsequent call to genlmsg_cancel() with an error pointer may result in a system instability. Linux system administrators and developers should prioritize this issue to prevent potential disruptions in network management functionalities.

CVE
CVE-2026-63986
Severity
UNKNOWN
CVSS
N/A
EPSS
0.17%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: ethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure The goto err label leads to: genlmsg_cancel(skb, ehdr); return ret; If ethnl_tsinfo_prepare_dump() failed, it has not started a genlmsg. There's nothing to cancel, and passing an error pointer to genlmsg_cancel() would cause a crash.