CVE-2016-8630

The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.

• CWE-284
• CWE-476

• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937eIssue Tracking, Patch, Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0386.html
• http://rhn.redhat.com/errata/RHSA-2017-0387.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7Release Notes
• http://www.openwall.com/lists/oss-security/2016/11/22/3Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/94459
• https://bugzilla.redhat.com/show_bug.cgi?id=1393350Issue Tracking
• https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937eIssue Tracking, Patch, Third Party Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937eIssue Tracking, Patch, Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0386.html
• http://rhn.redhat.com/errata/RHSA-2017-0387.html
• http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7Release Notes
• http://www.openwall.com/lists/oss-security/2016/11/22/3Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/94459
• https://bugzilla.redhat.com/show_bug.cgi?id=1393350Issue Tracking
• https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937eIssue Tracking, Patch, Third Party Advisory

Published

Nov 28, 2016

Last Modified

Jun 17, 2026

Status

Modified

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