CVE-2026-45978

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < a118724d7641b832fa14323e2733e28ae4834552affected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < 3cbe694d235d96f628ec7dc6ae4d8bdddb768699affected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < ba5022162da63059bae36c4fd84d7031f582c71faffected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < 65f2c608096d766540953d9b170d216aa3b5eb95affected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < 01b91cb3e748032fd96bbe0043812b426a52f091affected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < 06162d85f830582da6e9e5fcf9c9504d6da9ae0baffected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < da46264a7016034a5bbbad034c012ef218b7d0afaffected
LinuxLinux2870b52bae4c81823ffcb3ed2b0626fb39d64f48 < efcffd9a6ad8d190651498d5eda53bfc7cf683a7affected
LinuxLinux4.9affected
LinuxLinux0 < 4.9unaffected
LinuxLinux5.10.252 <= 5.10.*unaffected
LinuxLinux5.15.202 <= 5.15.*unaffected
LinuxLinux6.1.165 <= 6.1.*unaffected
LinuxLinux6.6.128 <= 6.6.*unaffected
LinuxLinux6.12.75 <= 6.12.*unaffected
LinuxLinux6.18.14 <= 6.18.*unaffected
LinuxLinux6.19.4 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References