CVE-2014-1438

The restore_fpu_checking function in arch/x86/include/asm/fpu-internal.h in the Linux kernel before 3.12.8 on the AMD K7 and K8 platforms does not clear pending exceptions before proceeding to an EMMS instruction, which allows local users to cause a denial of service (task kill) or possibly gain privileges via a crafted application.

🔗 References (42)

• cve@mitrehttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=26bef1318adc1b3a530ecc807ef99346db2aa8b0
• cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html
• cve@mitrehttp://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html
• cve@mitrehttp://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/
• cve@mitrehttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8
• cve@mitrehttp://www.mandriva.com/security/advisories?name=MDVSA-2014:038
• cve@mitrehttp://www.openwall.com/lists/oss-security/2014/01/14/1
• cve@mitrehttp://www.securityfocus.com/bid/64781
• cve@mitrehttp://www.securitytracker.com/id/1029592
• cve@mitrehttp://www.ubuntu.com/usn/USN-2113-1
• cve@mitrehttp://www.ubuntu.com/usn/USN-2117-1
• cve@mitrehttp://www.ubuntu.com/usn/USN-2133-1
• cve@mitrehttp://www.ubuntu.com/usn/USN-2134-1
• cve@mitrehttp://www.ubuntu.com/usn/USN-2135-1
• cve@mitrehttp://www.ubuntu.com/usn/USN-2136-1