CVE - CVE-2024-43854

CVE-ID
CVE-2024-43854	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: 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
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/129f95948a96105c1fad8e612c9097763e88ac5f URL:https://git.kernel.org/stable/c/129f95948a96105c1fad8e612c9097763e88ac5f MISC:https://git.kernel.org/stable/c/23a19655fb56f241e592041156dfb1c6d04da644 URL:https://git.kernel.org/stable/c/23a19655fb56f241e592041156dfb1c6d04da644 MISC:https://git.kernel.org/stable/c/3fd11fe4f20756b4c0847f755a64cd96f8c6a005 URL:https://git.kernel.org/stable/c/3fd11fe4f20756b4c0847f755a64cd96f8c6a005 MISC:https://git.kernel.org/stable/c/899ee2c3829c5ac14bfc7d3c4a5846c0b709b78f URL:https://git.kernel.org/stable/c/899ee2c3829c5ac14bfc7d3c4a5846c0b709b78f MISC:https://git.kernel.org/stable/c/9f4af4cf08f9a0329ade3d938f55d2220c40d0a6 URL:https://git.kernel.org/stable/c/9f4af4cf08f9a0329ade3d938f55d2220c40d0a6 MISC:https://git.kernel.org/stable/c/cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2 URL:https://git.kernel.org/stable/c/cf6b45ea7a8df0f61bded1dc4a8561ac6ad143d2 MISC:https://git.kernel.org/stable/c/d418313bd8f55c079a7da12651951b489a638ac1 URL:https://git.kernel.org/stable/c/d418313bd8f55c079a7da12651951b489a638ac1 MISC:https://git.kernel.org/stable/c/ebc0e91ba76dc6544fff9f5b66408b1982806a00 URL:https://git.kernel.org/stable/c/ebc0e91ba76dc6544fff9f5b66408b1982806a00
Assigning CNA
kernel.org
Date Record Created
20240817	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 (20240817)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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