CVE-2026-45978
staging: greybus: lights: avoid NULL deref
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Description
In the Linux kernel, the following vulnerability has been resolved: staging: greybus: lights: avoid NULL deref gb_lights_light_config() stores channel_count before allocating the channels array. If kcalloc() fails, gb_lights_release() iterates the non-zero count and dereferences light->channels, which is NULL. Allocate channels first and only then publish channels_count so the cleanup path can't walk a NULL pointer.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552
- https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699
- https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71f
- https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95
- https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091
References (8)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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