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CVE-2023-52762 is an integer-conversion flaw in the Linux kernel virtio-blk driver’s handling of the maximum DMA size. The driver implicitly converts the size_t result of virtio_max_dma_size() to u32. When the returned DMA size exceeds U32_MAX, the conversion truncates the value; for example, a 4 GB value can become zero. The upstream correction caps the value at U32_MAX rather than permitting the unsafe conversion.
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A medium-severity Linux kernel virtio-blk vulnerability caused by an implicit size_t-to-u32 integer conversion that could overflow the maximum DMA size calculation, potentially affecting availability.
Linux kernel virtio-blk flaw involving an implicit overflow in virtio_max_dma_size.
Unknown.
Unknown
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.