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Vulnerability Change Records for CVE-2024-42242

Change History

New CVE Received by NIST 8/07/2024 12:15:47 PM

Action Type Old Value New Value
Added Description

								
							
							
						
In the Linux kernel, the following vulnerability has been resolved:

mmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE

blk_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 maximum
segment size too low in some circumstances.

Fix the maximum segment size when it is too low.
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/63d20a94f24fc1cbaf44d0e7c0e0a8077fde0aef [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/bf78b1accef46efd9b624967cb74ae8d3c215a2b [No types assigned]