diff mbox

sysctl: fix sizeof argument to match variable name

Message ID e0d0531f-361e-ef5f-8499-32743ba907e1@infradead.org (mailing list archive)
State New, archived
Headers show

Commit Message

Randy Dunlap March 24, 2018, 8:23 p.m. UTC 
From: Randy Dunlap <rdunlap@infradead.org>

Fix sizeof argument to be the same as the data variable name.
Probably a copy/paste error.
Mostly harmless since both variables are unsigned int.

Fixes kernel bugzilla #197371:
  Possible access to unintended variable in "kernel/sysctl.c" line 1339
https://bugzilla.kernel.org/show_bug.cgi?id=197371

Reported-by: Petru Mihancea <petrum@gmail.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
---
 kernel/sysctl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

--- lnx-416-rc6.orig/kernel/sysctl.c
+++ lnx-416-rc6/kernel/sysctl.c
@@ -1329,7 +1329,7 @@  static struct ctl_table vm_table[] = {
 	{
 		.procname	= "dirtytime_expire_seconds",
 		.data		= &dirtytime_expire_interval,
-		.maxlen		= sizeof(dirty_expire_interval),
+		.maxlen		= sizeof(dirtytime_expire_interval),
 		.mode		= 0644,
 		.proc_handler	= dirtytime_interval_handler,
 		.extra1		= &zero,