x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace
authorDavid Howells <dhowells@redhat.com>
Wed, 27 Jul 2016 10:42:38 +0000 (11:42 +0100)
committerIngo Molnar <mingo@kernel.org>
Mon, 1 Aug 2016 09:31:24 +0000 (11:31 +0200)
commitf7d665627e103e82d34306c7d3f6f46f387c0d8b
tree5eb576c39bf6b4979e250879ffdb7cc3f5b1a844
parent7946c2beac12136b02ef7ea05bd2901ff57807a2
x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace

x86_64 needs to use compat_sys_keyctl for 32-bit userspace rather than
calling sys_keyctl(). The latter will work in a lot of cases, thereby
hiding the issue.

Reported-by: Stephan Mueller <smueller@chronox.de>
Tested-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: keyrings@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/146961615805.14395.5581949237156769439.stgit@warthog.procyon.org.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/entry/syscalls/syscall_32.tbl