Yu-cheng Yu b22cbe404a x86/fpu: Fix invalid FPU ptrace state after execve() ... Robert O'Callahan reported that after an execve PTRACE_GETREGSET NT_X86_XSTATE continues to return the pre-exec register values until the exec'ed task modifies FPU state. The test code is at: https://bugzilla.redhat.com/attachment.cgi?id=1164286. What is happening is fpu__clear() does not properly clear fpstate. Fix it by doing just that. Reported-by: Robert O'Callahan <robert@ocallahan.org> Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Cc: <stable@vger.kernel.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@suse.de> Cc: David Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi V. Shankar <ravi.v.shankar@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1479402695-6553-1-git-send-email-yu-cheng.yu@intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-11-21 10:38:35 +01:00
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Makefile	x86/fpu: Factor out the FPU regset code into fpu/regset.c	2015-05-19 15:48:09 +02:00
bugs.c	x86/fpu: Remove check_fpu() indirection	2016-04-13 11:37:43 +02:00
core.c	x86/fpu: Fix invalid FPU ptrace state after execve()	2016-11-21 10:38:35 +01:00
init.c	x86/asm: Move the thread_info::status field to thread_struct	2016-09-15 08:25:12 +02:00
regset.c	x86/fpu/xstate: Fix PTRACE frames for XSAVES	2016-07-10 17:12:10 +02:00
signal.c	tree-wide: replace config_enabled() with IS_ENABLED()	2016-08-04 08:50:07 -04:00
xstate.c	x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features	2016-10-19 17:37:13 +02:00