CVE-2024-43854 (GCVE-0-2024-43854)
Vulnerability from cvelistv5
Published
2024-08-17 09:22
Modified
2025-11-03 22:05
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory. Fix this by adding the __GFP_ZERO flag to allocations for writes.
References
Impacted products
Vendor Product Version
Linux Linux Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
Version: 7ba1ba12eeef0aa7113beb16410ef8b7c748e18b
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