linux-kernel - [PATCH] renumber PTRACE_EVENT_STOP so that future PTRACE_O

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Wed, 04 Jan 2012 16:37:39 +0100
From:	Denys Vlasenko <dvlasenk@...hat.com>
To:	Oleg Nesterov <oleg@...hat.com>, Tejun Heo <tj@...nel.org>
CC:	linux-kernel@...r.kernel.org,
	Denys Vlasenko <vda.linux@...glemail.com>
Subject: [PATCH] renumber PTRACE_EVENT_STOP so that future PTRACE_O_TRACEfoo

PTRACE_EVENT_foo and PTRACE_O_TRACEfoo used to match.

New PTRACE_EVENT_STOP is the first event which has no
corresponding PTRACE_O_TRACE option. If we will ever
want to add another such option, its PTRACE_EVENT's
value will collide with PTRACE_EVENT_STOP's value.

This patch changes PTRACE_EVENT_STOP value to prevent this.

While at it, added comment - the one above,
"Wait extended result codes for the above trace options",
is not true for PTRACE_EVENT_STOP.

Signed-off-by: Denys Vlasenko <vda.linux@...glemail.com>
-- 
vda

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 800f113..1729c00 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -72,7 +72,8 @@
  #define PTRACE_EVENT_EXEC	4
  #define PTRACE_EVENT_VFORK_DONE	5
  #define PTRACE_EVENT_EXIT	6
-#define PTRACE_EVENT_STOP	7
+/* Extended result codes which aren't enabled by options.  */
+#define PTRACE_EVENT_STOP	128

  #include <asm/ptrace.h>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/