CVE-2026-45978staging: greybus: lights: avoid NULL deref
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- May 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 before a118724d7641b832fa14323e2733e28ae4834552; 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 builds before 3cbe694d235d96f628ec7dc6ae4d8bdddb768699; from 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 before ba5022162da63059bae36c4fd84d7031f582c71f; 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 builds before 65f2c608096d766540953d9b170d216aa3b5eb95; 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 builds before 01b91cb3e748032fd96bbe0043812b426a52f091; from 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 before 06162d85f830582da6e9e5fcf9c9504d6da9ae0b; from 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 before da46264a7016034a5bbbad034c012ef218b7d0af; from 2870b52bae4c81823ffcb3ed2b0626fb39d64f48 before efcffd9a6ad8d190651498d5eda53bfc7cf683a7 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.9 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4 | NVD |
References
- https://git.kernel.org/stable/c/a118724d7641b832fa14323e2733e28ae4834552patch
- https://git.kernel.org/stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699patch
- https://git.kernel.org/stable/c/ba5022162da63059bae36c4fd84d7031f582c71fpatch
- https://git.kernel.org/stable/c/65f2c608096d766540953d9b170d216aa3b5eb95patch
- https://git.kernel.org/stable/c/01b91cb3e748032fd96bbe0043812b426a52f091patch
- https://git.kernel.org/stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0bpatch
- https://git.kernel.org/stable/c/da46264a7016034a5bbbad034c012ef218b7d0afpatch
- https://git.kernel.org/stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.