CVE-2023-52762 Information

Description

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.

Reference

https://git.kernel.org/stable/c/72775cad7f572bb2501f9ea609e1d20e68f0b38b https://git.kernel.org/stable/c/472bd4787406bef2e8b41ee4c74d960a06a49a48 https://git.kernel.org/stable/c/017278f141141367f7d14b203e930b45b6ffffb9 https://git.kernel.org/stable/c/d667fe301dcbcb12d1d6494fc4b8abee2cb75d90 https://git.kernel.org/stable/c/fafb51a67fb883eb2dde352539df939a251851be