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Change History

In the Linux kernel, the following vulnerability has been resolved:

virtio-blk: fix implicit overflow on virtio_max_dma_size

The following codes have an implicit conversion from size_t to u32:
(u32)max_size = (size_t)virtio_max_dma_size(vdev);

This may lead overflow, Ex (size_t)4G -> (u32)0. Once
virtio_max_dma_size() has a larger size than U32_MAX, use U32_MAX
instead.

kernel.org https://git.kernel.org/stable/c/017278f141141367f7d14b203e930b45b6ffffb9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/472bd4787406bef2e8b41ee4c74d960a06a49a48 [No types assigned]

kernel.org https://git.kernel.org/stable/c/72775cad7f572bb2501f9ea609e1d20e68f0b38b [No types assigned]

kernel.org https://git.kernel.org/stable/c/d667fe301dcbcb12d1d6494fc4b8abee2cb75d90 [No types assigned]

kernel.org https://git.kernel.org/stable/c/fafb51a67fb883eb2dde352539df939a251851be [No types assigned]