medium5.3
CVE-2024-35878
In the Linux kernel, the following vulnerability has been resolved: of: module: prevent NULL pointer dereference in vsnprintf() In of_modalias(), we can get pa…
Impact
In the Linux kernel, the following vulnerability has been resolved: of: module: prevent NULL pointer dereference in vsnprintf() In of_modalias(), we can get passed the str and len parameters which would cause a kernel oops in vsnprintf() since it only allows passing a NULL ptr when the length is also 0. Also, we need to filter out the negative values of the len parameter as these will result in a really huge buffer since snprintf() takes size_t parameter while ours is ssize_t... Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 6.6.26 from 6.7 before 6.8.5 Version 6.9 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/544561dc56f7e69a053c25e11e6170f48bb97898
- https://git.kernel.org/stable/c/a1aa5390cc912934fee76ce80af5f940452fa987
- https://git.kernel.org/stable/c/e4a449368a2ce6d57a775d0ead27fc07f5a86e5b
- https://git.kernel.org/stable/c/544561dc56f7e69a053c25e11e6170f48bb97898
- https://git.kernel.org/stable/c/a1aa5390cc912934fee76ce80af5f940452fa987
- https://git.kernel.org/stable/c/e4a449368a2ce6d57a775d0ead27fc07f5a86e5b