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3d44d51bd3
This doesn't seem to fix a regression -- I don't think the CLAC was
ever there.
I double-checked in a debugger: entries through the int80 gate do
not automatically clear AC.
Stable maintainers: I can provide a backport to 4.3 and earlier if
needed. This needs to be backported all the way to 3.10.
Reported-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org> # v3.10 and later
Fixes:
|
||
|---|---|---|
| .. | ||
| syscalls | ||
| vdso | ||
| vsyscall | ||
| calling.h | ||
| common.c | ||
| entry_32.S | ||
| entry_64_compat.S | ||
| entry_64.S | ||
| Makefile | ||
| syscall_32.c | ||
| syscall_64.c | ||
| thunk_32.S | ||
| thunk_64.S | ||