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 products
linux: linux kernel
References8
- git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091 Patch
- git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b Patch
- git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699 Patch
- git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95 Patch
- git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552 Patch
- git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71f Patch
- git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0af Patch
- git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 14 November 2026
- CWE
- CWE-476
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