cve/2024/CVE-2024-42242.md

CVE-2024-42242

Description

In the Linux kernel, the following vulnerability has been resolved:mmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZEblk_queue_max_segment_size() ensured: if (max_size < PAGE_SIZE) max_size = PAGE_SIZE;whereas:blk_validate_limits() makes it an error: if (WARN_ON_ONCE(lim->max_segment_size < PAGE_SIZE)) return -EINVAL;The change from one to the other, exposed sdhci which was setting maximumsegment size too low in some circumstances.Fix the maximum segment size when it is too low.

POC

Reference

No PoCs from references.

Github

• https://github.com/fkie-cad/nvd-json-data-feeds