Linux Kernel 'fpu-internal. H' Local Denial of Service Vulnerability

Release date:
Updated on:

Affected Systems:
Linux kernel 3.4.76
Linux kernel 3.12.7
Linux kernel 3.10.26
Description:
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Bugtraq id: 64781

Linux Kernel is the Kernel of the Linux operating system.

After Linux Kernel 3.4.76, 3.10.26, 3.12.7 handles FXSAVE leaks, the FPU suspended in the "restore_fpu_checking ()" function (arch/x86/include/asm/fpu-internal.h) is not cleared, this can be exploited by local users to trigger a kernel crash. This vulnerability affects only Linux systems running on amd cpu.

<* Source: halfdog

Link: http://secunia.com/advisories/56406/
*>

Suggestion:
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Vendor patch:

Linux
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The vendor has released a patch to fix this security problem. Please download it from the vendor's homepage:

Http://www.kernel.org/

Linux Kernel:
Http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit? Id = 26bef1318adc1b3a530ecc807ef991_db2aa8b0

Linux Kernel: click here
Linux Kernel: click here

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