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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4008-1 | linux-6.1 security update |
Debian DLA |
DLA-4075-1 | linux security update |
Ubuntu USN |
USN-7276-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7277-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7288-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7288-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7289-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7289-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7289-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7289-4 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7291-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7305-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7308-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7310-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7331-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7383-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7383-2 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7384-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7384-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7385-1 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-7386-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-7388-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7389-1 | Linux kernel (NVIDIA Tegra) vulnerabilities |
Ubuntu USN |
USN-7390-1 | Linux kernel (Xilinx ZynqMP) vulnerabilities |
Ubuntu USN |
USN-7403-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7451-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7458-1 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-7468-1 | Linux kernel (Azure, N-Series) vulnerabilities |
Ubuntu USN |
USN-7523-1 | Linux kernel (Raspberry Pi Real-time) vulnerabilities |
Ubuntu USN |
USN-7524-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Tue, 04 Nov 2025 00:30:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Mon, 03 Nov 2025 22:30:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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Wed, 01 Oct 2025 23:15:00 +0200
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 20 Dec 2024 03:45:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-665 | |
| Metrics |
threat_severity
|
threat_severity
|
Fri, 29 Nov 2024 20:45:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* |
|
| Vendors & Products |
Linux
Linux linux Kernel |
|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Fri, 22 Nov 2024 15:00:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Fri, 08 Nov 2024 07:00:00 +0100
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | x86/entry_32: Clear CPU buffers after register restore in NMI return | |
| References |
|
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-23T15:54:44.044Z
Reserved: 2024-10-21T19:36:19.967Z
Link: CVE-2024-50193
Updated: 2025-11-03T22:26:47.607Z
Status : Modified
Published: 2024-11-08T06:15:16.153
Modified: 2026-06-17T08:03:50.230
Link: CVE-2024-50193
OpenCVE Enrichment
No data.
Debian DLA
Ubuntu USN