CVE-2024-26943
Vulnerability from cvelistv5
Published
2024-05-01 05:18
Modified
2024-12-19 08:50
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2
Impacted products
Vendor Product Version
Linux Linux Version: 6.1
Show details on NVD website

To clipboard 

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