This is a note to let you know that I've just added the patch titled
bootconfig: init: Fix memblock leak in xbc_make_cmdline()
to the 5.14-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:
bootconfig-init-fix-memblock-leak-in-xbc_make_cmdline.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1ae43851b18afe861120ebd7c426dc44f06bb2bd Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Date: Thu, 16 Sep 2021 15:23:12 +0900
Subject: bootconfig: init: Fix memblock leak in xbc_make_cmdline()
From: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
commit 1ae43851b18afe861120ebd7c426dc44f06bb2bd upstream.
Free unused memblock in a error case to fix memblock leak
in xbc_make_cmdline().
Link: https://lkml.kernel.org/r/163177339181.682366.8713781325929549256.stgit@devnote2
Fixes: 51887d03aca1 ("bootconfig: init: Allow admin to use bootconfig for kernel command line")
Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
init/main.c | 1 +
1 file changed, 1 insertion(+)
--- a/init/main.c
+++ b/init/main.c
@@ -382,6 +382,7 @@ static char * __init xbc_make_cmdline(co
ret = xbc_snprint_cmdline(new_cmdline, len + 1, root);
if (ret < 0 || ret > len) {
pr_err("Failed to print extra kernel cmdline.\n");
+ memblock_free(__pa(new_cmdline), len + 1);
return NULL;
}
Patches currently in stable-queue which might be from mhiramat@xxxxxxxxxx are
queue-5.14/bootconfig-init-fix-memblock-leak-in-xbc_make_cmdline.patch
