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…
Does this matter?
Lower severity and a low EPSS score (0.65%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 4.7 MEDIUMAV:L/AC:M/Au:N/C:N/I:N/A:C
- EPSS
- 0.65% probability · 51th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
EPSS 0.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=26bef1318adc1b3a530ecc807ef99346db2aa8b0
- http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html
- http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:038
- http://www.openwall.com/lists/oss-security/2014/01/14/1
- http://www.securityfocus.com/bid/64781
- http://www.securitytracker.com/id/1029592
- http://www.ubuntu.com/usn/USN-2113-1
- http://www.ubuntu.com/usn/USN-2117-1
- http://www.ubuntu.com/usn/USN-2133-1
- http://www.ubuntu.com/usn/USN-2134-1
- http://www.ubuntu.com/usn/USN-2135-1
- http://www.ubuntu.com/usn/USN-2136-1
- http://www.ubuntu.com/usn/USN-2138-1
- http://www.ubuntu.com/usn/USN-2139-1
- http://www.ubuntu.com/usn/USN-2141-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1052914
- https://github.com/torvalds/linux/commit/26bef1318adc1b3a530ecc807ef99346db2aa8b0
- https://lkml.org/lkml/2014/1/9/637
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=26bef1318adc1b3a530ecc807ef99346db2aa8b0
- http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126858.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-January/126874.html
- http://www.halfdog.net/Security/2013/Vm86SyscallTaskSwitchKernelPanic/
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.12.8
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:038
- http://www.openwall.com/lists/oss-security/2014/01/14/1
- http://www.securityfocus.com/bid/64781
- http://www.securitytracker.com/id/1029592
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.