This is a note to let you know that I've just added the patch titled
selftests/seccomp: Support glibc 2.26 siginfo_t.h
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
selftests-seccomp-support-glibc-2.26-siginfo_t.h.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 10859f3855db4c6f10dc7974ff4b3a292f3de8e0 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@xxxxxxxxxxxx>
Date: Thu, 7 Sep 2017 16:32:46 -0700
Subject: selftests/seccomp: Support glibc 2.26 siginfo_t.h
From: Kees Cook <keescook@xxxxxxxxxxxx>
commit 10859f3855db4c6f10dc7974ff4b3a292f3de8e0 upstream.
The 2.26 release of glibc changed how siginfo_t is defined, and the earlier
work-around to using the kernel definition are no longer needed. The old
way needs to stay around for a while, though.
Reported-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Will Drewry <wad@xxxxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: linux-kselftest@xxxxxxxxxxxxxxx
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Tested-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>
Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -6,10 +6,18 @@
*/
#include <sys/types.h>
-#include <asm/siginfo.h>
-#define __have_siginfo_t 1
-#define __have_sigval_t 1
-#define __have_sigevent_t 1
+
+/*
+ * glibc 2.26 and later have SIGSYS in siginfo_t. Before that,
+ * we need to use the kernel's siginfo.h file and trick glibc
+ * into accepting it.
+ */
+#if !__GLIBC_PREREQ(2, 26)
+# include <asm/siginfo.h>
+# define __have_siginfo_t 1
+# define __have_sigval_t 1
+# define __have_sigevent_t 1
+#endif
#include <errno.h>
#include <linux/filter.h>
@@ -676,7 +684,7 @@ TEST_F_SIGNAL(TRAP, ign, SIGSYS)
syscall(__NR_getpid);
}
-static struct siginfo TRAP_info;
+static siginfo_t TRAP_info;
static volatile int TRAP_nr;
static void TRAP_action(int nr, siginfo_t *info, void *void_context)
{
Patches currently in stable-queue which might be from keescook@xxxxxxxxxxxx are
queue-4.9/seccomp-fix-the-usage-of-get-put_seccomp_filter-in-seccomp_get_filter.patch
queue-4.9/fs-proc-report-eip-esp-in-prod-pid-stat-for-coredumping.patch
queue-4.9/selftests-seccomp-support-glibc-2.26-siginfo_t.h.patch