CVE-2026-63986: ethtool: tsinfo: don't pass ERR_PTR to genlmsg_cancel on prepare failure
Published Jul 19, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
ethtool: tsinfo: don't pass ERRPTR to genlmsgcancel on prepare failure
The goto err label leads to:
genlmsgcancel(skb, ehdr); return ret;
If ethnltsinfopreparedump() failed, it has not started a genlmsg. There's nothing to cancel, and passing an error pointer to genlmsgcancel() would cause a crash.
Affected Software
8 affected components
Linux Linux kernel
Linux Linux kernel>=6.14<6.18.35
Linux Linux kernel>=6.19<7.0.12
Linux Linux kernel=7.1-rc1
Linux Linux kernel=7.1-rc2
Linux Linux kernel=7.1-rc3
Linux Linux kernel=7.1-rc4
Linux Linux kernel=7.1-rc5
Event History
Jul 19, 2026
CVE Published
via MITRE·02:56 PM
Data Sourced
via MITRE·02:56 PM
Description
Data Sourced
via NVD·04:17 PM
RemedyDescriptionSeverityWeaknessAffected Software