Medium severity5.5NVD Advisory· Published May 27, 2026· Updated Jun 16, 2026
CVE-2026-45978
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.
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Affected products
3Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091nvdPatch
- git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0bnvdPatch
- git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699nvdPatch
- git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95nvdPatch
- git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552nvdPatch
- git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71fnvdPatch
- git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0afnvdPatch
- git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7nvdPatch
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