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| author | David Howells <dhowells@redhat.com> | 2016-07-27 11:42:38 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2016-11-20 01:01:30 +0000 |
| commit | cea637ee445e8aa3ad4a01029858566fe1773990 (patch) | |
| tree | 2704436efd7cb7225c5712f5701d1d5335f9e468 /arch | |
| parent | 02dd82ed5de939add38991dae6386fe91b07d653 (diff) | |
| download | lwn-cea637ee445e8aa3ad4a01029858566fe1773990.tar.gz lwn-cea637ee445e8aa3ad4a01029858566fe1773990.zip | |
x86/syscalls/64: Add compat_sys_keyctl for 32-bit userspace
commit f7d665627e103e82d34306c7d3f6f46f387c0d8b upstream.
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
Link: http://lkml.kernel.org/r/146961615805.14395.5581949237156769439.stgit@warthog.procyon.org.uk
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[bwh: Backported to 3.2: compat system call table is in ia32entry.S]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/ia32/ia32entry.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 95b4eb3424a0..2b5527726ae1 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -791,7 +791,7 @@ ia32_sys_call_table: .quad quiet_ni_syscall /* 285: sys_altroot */ .quad sys_add_key .quad sys_request_key - .quad sys_keyctl + .quad compat_sys_keyctl .quad sys_ioprio_set .quad sys_ioprio_get /* 290 */ .quad sys_inotify_init |