CVE - CVE-2024-26943

CVE-ID
CVE-2024-26943	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b URL:https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b MISC:https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d URL:https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d MISC:https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee URL:https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee MISC:https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2 URL:https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2 MISC:https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2 URL:https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2
Assigning CNA
kernel.org
Date Record Created
20240219	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240219)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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