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grub2/SOURCES/0412-syslinux-Fix-memory-le...

41 lines
1.1 KiB

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Darren Kenny <darren.kenny@oracle.com>
Date: Thu, 26 Nov 2020 15:31:53 +0000
Subject: [PATCH] syslinux: Fix memory leak while parsing
In syslinux_parse_real() the 2 points where return is being called
didn't release the memory stored in buf which is no longer required.
Fixes: CID 176634
Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/lib/syslinux_parse.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/grub-core/lib/syslinux_parse.c b/grub-core/lib/syslinux_parse.c
index 83e7bdb91..f477feff1 100644
--- a/grub-core/lib/syslinux_parse.c
+++ b/grub-core/lib/syslinux_parse.c
@@ -737,7 +737,10 @@ syslinux_parse_real (struct syslinux_menu *menu)
&& grub_strncasecmp ("help", ptr3, ptr4 - ptr3) == 0))
{
if (helptext (ptr5, file, menu))
- return 1;
+ {
+ grub_free (buf);
+ return 1;
+ }
continue;
}
@@ -757,6 +760,7 @@ syslinux_parse_real (struct syslinux_menu *menu)
}
fail:
grub_file_close (file);
+ grub_free (buf);
return err;
}