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.

Classification

CVE ID: CVE-2023-52762

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.83% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

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

Timeline