Tracker / CVE-2024-26943
CVE-2024-26943
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: nouveau/dmem: handle kcalloc() allocation failure The kcalloc() in nouveau_dmem_evict_chunk() will return null if the physical memory has run out. As a result, if we dereference src_pfns, dst_pfns or dma_addrs, the null pointer dereference bugs will happen. Moreover, the GPU is going away. If the kcalloc() fails, we could not evict all pages mapping a chunk. So this patch adds a __GFP_NOFAIL flag in kcalloc(). Finally, as there is no need to have physically contiguous memory, this patch switches kcalloc() to kvcalloc() in order to avoid failing allocations.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.1 → 6.1.84 |
| linux | linux_kernel · 6.2 → 6.6.24 |
| linux | linux_kernel · 6.7 → 6.7.12 |
| linux | linux_kernel · 6.8 → 6.8.3 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.