Description
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-516-1 | linux security update |
Debian DSA |
DSA-3607-1 | linux security update |
EUVD |
EUVD-2016-4209 | The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel does not properly context-switch IOPL on 64-bit PV Xen guests, which allows local guest OS users to gain privileges, cause a denial of service (guest OS crash), or obtain sensitive information by leveraging I/O port access. |
Ubuntu USN |
USN-2965-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2965-2 | Linux kernel (Xenial HWE) vulnerabilities |
Ubuntu USN |
USN-2965-3 | Linux kernel (Raspberry Pi 2) vulnerabilities |
Ubuntu USN |
USN-2965-4 | Linux kernel (Qualcomm Snapdragon) vulnerability |
Ubuntu USN |
USN-2968-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2968-2 | Linux kernel (Trusty HWE) vulnerabilities |
Ubuntu USN |
USN-2969-1 | Linux kernel (Utopic HWE) vulnerabilities |
Ubuntu USN |
USN-2970-1 | Linux kernel (Vivid HWE) vulnerabilities |
Ubuntu USN |
USN-2971-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2971-2 | Linux kernel (Wily HWE) vulnerabilities |
Ubuntu USN |
USN-2971-3 | Linux kernel (Raspberry Pi 2) vulnerabilities |
Ubuntu USN |
USN-2996-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2997-1 | Linux kernel (OMAP4) vulnerabilities |
References
History
Fri, 11 Jul 2025 13:45:00 +0000
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T23:47:57.945Z
Reserved: 2016-03-15T00:00:00.000Z
Link: CVE-2016-3157
No data.
Status : Modified
Published: 2016-04-12T16:59:02.423
Modified: 2026-05-06T22:30:45.220
Link: CVE-2016-3157
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN