CVE-2024-56756 - "Nvidia NVMe Host Memory Buffer Descriptor Table DMA Free Vulnerability"

CVE-2024-56756 - "Nvidia NVMe Host Memory Buffer Descriptor Table DMA Free Vulnerability"

https://cvefeed.io/rssfeed/latest.atom / Sun, 12/29/2024 - 15:22
CVE ID : CVE-2024-56756
Published : Dec. 29, 2024, 12:15 p.m. | 2 hours, 7 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.
Severity: 0.0 | NA
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