CVE - CVE-2024-35996

CVE-ID
CVE-2024-35996	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: cpu: Re-enable CPU mitigations by default for !X86 architectures Rename x86's to CPU_MITIGATIONS, define it in generic code, and force it on for all architectures exception x86. A recent commit to turn mitigations off by default if SPECULATION_MITIGATIONS=n kinda sorta missed that "cpu_mitigations" is completely generic, whereas SPECULATION_MITIGATIONS is x86-specific. Rename x86's SPECULATIVE_MITIGATIONS instead of keeping both and have it select CPU_MITIGATIONS, as having two configs for the same thing is unnecessary and confusing. This will also allow x86 to use the knob to manage mitigations that aren't strictly related to speculative execution. Use another Kconfig to communicate to common code that CPU_MITIGATIONS is already defined instead of having x86's menu depend on the common CPU_MITIGATIONS. This allows keeping a single point of contact for all of x86's mitigations, and it's not clear that other architectures want to allow disabling mitigations at compile-time.
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/36b32816fbab267611f073223f1b0b816ec5920f URL:https://git.kernel.org/stable/c/36b32816fbab267611f073223f1b0b816ec5920f MISC:https://git.kernel.org/stable/c/38f17d1fbb5bfb56ca1419e2d06376d57a9396f9 URL:https://git.kernel.org/stable/c/38f17d1fbb5bfb56ca1419e2d06376d57a9396f9 MISC:https://git.kernel.org/stable/c/8292f4f8dd1b005d0688d726261004f816ef730a URL:https://git.kernel.org/stable/c/8292f4f8dd1b005d0688d726261004f816ef730a MISC:https://git.kernel.org/stable/c/af6d6a923b40bf6471e44067ac61cc5814b48e7f URL:https://git.kernel.org/stable/c/af6d6a923b40bf6471e44067ac61cc5814b48e7f MISC:https://git.kernel.org/stable/c/fd8547ebc187037cc69441a15c1441aeaab80f49 URL:https://git.kernel.org/stable/c/fd8547ebc187037cc69441a15c1441aeaab80f49 MISC:https://git.kernel.org/stable/c/fe42754b94a42d08cf9501790afc25c4f6a5f631 URL:https://git.kernel.org/stable/c/fe42754b94a42d08cf9501790afc25c4f6a5f631
Assigning CNA
kernel.org
Date Record Created
20240517	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 (20240517)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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