linux-hardening - [RFC][PATCH v2 13/29] kernel/fork: Annotate static information into Kmemdump

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

Message-ID: <20250724135512.518487-14-eugen.hristev@linaro.org>
Date: Thu, 24 Jul 2025 16:54:56 +0300
From: Eugen Hristev <eugen.hristev@...aro.org>
To: linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-arch@...r.kernel.org,
	linux-mm@...ck.org,
	tglx@...utronix.de,
	andersson@...nel.org,
	pmladek@...e.com
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-hardening@...r.kernel.org,
	eugen.hristev@...aro.org,
	corbet@....net,
	mojha@....qualcomm.com,
	rostedt@...dmis.org,
	jonechou@...gle.com,
	tudor.ambarus@...aro.org
Subject: [RFC][PATCH v2 13/29] kernel/fork: Annotate static information into Kmemdump

Annotate vital static information into kmemdump:
 - nr_threads

Information on these variables is stored into dedicated kmemdump section.

Signed-off-by: Eugen Hristev <eugen.hristev@...aro.org>
---
 kernel/fork.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/fork.c b/kernel/fork.c
index edc6579f736b..ae8ae9b9180b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -105,6 +105,7 @@
 #include <uapi/linux/pidfd.h>
 #include <linux/pidfs.h>
 #include <linux/tick.h>
+#include <linux/kmemdump.h>
 
 #include <asm/pgalloc.h>
 #include <linux/uaccess.h>
@@ -137,6 +138,7 @@
  */
 unsigned long total_forks;	/* Handle normal Linux uptimes. */
 int nr_threads;			/* The idle threads do not count.. */
+KMEMDUMP_VAR_CORE(nr_threads, sizeof(nr_threads));
 
 static int max_threads;		/* tunable limit on nr_threads */
 
-- 
2.43.0