CVE - CVE-2024-46794

CVE-ID
CVE-2024-46794	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: x86/tdx: Fix data leak in mmio_read() The mmio_read() function makes a TDVMCALL to retrieve MMIO data for an address from the VMM. Sean noticed that mmio_read() unintentionally exposes the value of an initialized variable (val) on the stack to the VMM. This variable is only needed as an output value. It did not need to be passed to the VMM in the first place. Do not send the original value of *val to the VMM. [ dhansen: clarify what 'val' is used for. ]
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/26c6af49d26ffc377e392e30d4086db19eed0ef7 URL:https://git.kernel.org/stable/c/26c6af49d26ffc377e392e30d4086db19eed0ef7 MISC:https://git.kernel.org/stable/c/b55ce742afcb8e8189d82f2f1e635ba1b5a461fa URL:https://git.kernel.org/stable/c/b55ce742afcb8e8189d82f2f1e635ba1b5a461fa MISC:https://git.kernel.org/stable/c/b6fb565a2d15277896583d471b21bc14a0c99661 URL:https://git.kernel.org/stable/c/b6fb565a2d15277896583d471b21bc14a0c99661 MISC:https://git.kernel.org/stable/c/ef00818c50cf55a3a56bd9a9fae867c92dfb84e7 URL:https://git.kernel.org/stable/c/ef00818c50cf55a3a56bd9a9fae867c92dfb84e7
Assigning CNA
kernel.org
Date Record Created
20240911	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 (20240911)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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