CVE-2024-50193high

CVE-2024-50193: high-severity vulnerability in Linux

x86/entry_32: Clear CPU buffers after register restore in NMI return

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved: x86/entry_32: Clear CPU buffers after register restore in NMI return CPU buffers are currently cleared after call to exc_nmi, but before register state is restored. This may be okay for MDS mitigation but not for RDFS. Because RDFS mitigation requires CPU buffers to be cleared when registers don't have any sensitive data. Move CLEAR_CPU_BUFFERS after RESTORE_ALL_NMI.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Affected products
Linux · Linux
Related CVEs — Linux

In the same product, most dangerous first.

CVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 3.4%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 2.9%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEVCVE-2024-53150HIGHALSA: usb-audio: Fix out of bounds reads when finding clock sourcesEPSS 1.4%KEV
References
https://git.kernel.org/stable/c/227358e89703c344008119be7e8ffa3fdb5b92dehttps://git.kernel.org/stable/c/43778de19d2ef129636815274644b9c16e78c66bhttps://git.kernel.org/stable/c/48a2440d0f20c826b884e04377ccc1e4696c84e9https://git.kernel.org/stable/c/64adf22c4bc73ede920baca5defefb70f190cdbchttps://git.kernel.org/stable/c/6f44a5fc15b5cece0785bc07453db77d99b0a6dehttps://git.kernel.org/stable/c/b6400eb0b347821efc57760221f8fb6d63b9548ahttps://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlhttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html