CVE-2026-45978: staging: greybus: lights: avoid NULL deref
Published May 27, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
staging: greybus: lights: avoid NULL deref
gblightslightconfig() stores channelcount before allocating the channels array. If kcalloc() fails, gblightsrelease() iterates the non-zero count and dereferences light->channels, which is NULL.
Allocate channels first and only then publish channelscount so the cleanup path can't walk a NULL pointer.
Affected Software
8 affected components
Linux Linux kernel (staging/greybus lights)
Linux Linux kernel>=4.9<5.10.252
Linux Linux kernel>=5.11<5.15.202
Linux Linux kernel>=5.16<6.1.165
Linux Linux kernel>=6.2<6.6.128
Linux Linux kernel>=6.7<6.12.75
Linux Linux kernel>=6.13<6.18.14
Linux Linux kernel>=6.19<6.19.4
Event History
May 27, 2026
CVE Published
via MITRE·12:18 PM
Data Sourced
via MITRE·12:18 PM
Description
Data Sourced
via NVD·02:17 PM
RemedyDescriptionSeverityWeaknessAffected Software