Tracker / CVE-2024-56756
CVE-2024-56756
Medium 5.5
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.
Affected products and versions
| linux | linux_kernel · 4.13 → 5.4.287 |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.174 |
| linux | linux_kernel · 5.16 → 6.1.120 |
| linux | linux_kernel · 5.5 → 5.10.231 |
| linux | linux_kernel · 6.12 → 6.12.2 |
| linux | linux_kernel · 6.2 → 6.6.64 |
| linux | linux_kernel · 6.7 → 6.11.11 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.