CVE-2026-45978
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.
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091Patch
- https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0bPatch
- https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699Patch
- https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95Patch
- https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552Patch
- https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71fPatch
- https://git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0afPatch
- https://git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.