CVE - CVE-2024-44949

CVE-ID
CVE-2024-44949	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: parisc: fix a possible DMA corruption ARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be possible that two unrelated 16-byte allocations share a cache line. If one of these allocations is written using DMA and the other is written using cached write, the value that was written with DMA may be corrupted. This commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 - that's the largest possible cache line size. As different parisc microarchitectures have different cache line size, we define arch_slab_minalign(), cache_line_size() and dma_get_cache_alignment() so that the kernel may tune slab cache parameters dynamically, based on the detected cache line size.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f URL:https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f MISC:https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f URL:https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f MISC:https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f URL:https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f
Assigning CNA
kernel.org
Date Record Created
20240821	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240821)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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