CVE-2026-45978

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.

References

• https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091
• https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b
• https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699
• https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95
• https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552