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Change History

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 th

kernel.org https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b [No types assigned]

kernel.org https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d [No types assigned]

kernel.org https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee [No types assigned]

kernel.org https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2 [No types assigned]

kernel.org https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2 [No types assigned]