diff options
| author | Jann Horn <jannh@google.com> | 2018-11-27 14:32:00 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-11-27 17:55:45 +0100 |
| commit | ac26d1f74cfc19c8dc9d533b5f20e99dbee3d9bd (patch) | |
| tree | f62acf791b13705b3b0d76ea330b9fc749b7b398 /arch/x86/kernel/cpu/mcheck/mce_amd.c | |
| parent | 68239654acafe6aad5a3c1dc7237e60accfebc03 (diff) | |
x86/fpu: Use the correct exception table macro in the XSTATE_OP wrapper
Commit
75045f77f7a7 ("x86/extable: Introduce _ASM_EXTABLE_UA for uaccess fixups")
incorrectly replaced the fixup entry for XSTATE_OP with a user-#PF-only
fixup. XRSTOR can also raise #GP if the xstate content is invalid,
and _ASM_EXTABLE_UA doesn't expect that. Change this fixup back to
_ASM_EXTABLE so that #GP gets fixed up.
Fixes: 75045f77f7a7 ("x86/extable: Introduce _ASM_EXTABLE_UA for uaccess fixups")
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-hardening@lists.openwall.com
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20181126165957.xhsyu2dhyy45mrjo@linutronix.de
Link: https://lkml.kernel.org/r/20181127133200.38322-1-jannh@google.com
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/mce_amd.c')
0 files changed, 0 insertions, 0 deletions