CVE-2026-45978
staging: greybus: lights: avoid NULL deref
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.9
References 8
git.kernel.org
- stable/c/a118724d7641b832fa14323e2733e28ae4834552
- stable/c/3cbe694d235d96f628ec7dc6ae4d8bdddb768699
- stable/c/ba5022162da63059bae36c4fd84d7031f582c71f
- stable/c/65f2c608096d766540953d9b170d216aa3b5eb95
- stable/c/01b91cb3e748032fd96bbe0043812b426a52f091
- stable/c/06162d85f830582da6e9e5fcf9c9504d6da9ae0b
- stable/c/da46264a7016034a5bbbad034c012ef218b7d0af
- stable/c/efcffd9a6ad8d190651498d5eda53bfc7cf683a7