buildroot/boot/grub2/0055-fs-zfs-Add-missing-NULL-check-after-grub_strdup-call.patch

From f60272b284e98ecd4ee38ec06aab6587cf525616 Mon Sep 17 00:00:00 2001
From: Lidong Chen <lidong.chen@oracle.com>
Date: Wed, 22 Jan 2025 07:17:04 +0000
Subject: [PATCH] fs/zfs: Add missing NULL check after grub_strdup() call

Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Upstream: dd6a4c8d10e02ca5056681e75795041a343636e4
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
 grub-core/fs/zfs/zfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/grub-core/fs/zfs/zfs.c b/grub-core/fs/zfs/zfs.c
index 6e6d1c921..5ff647ffb 100644
--- a/grub-core/fs/zfs/zfs.c
+++ b/grub-core/fs/zfs/zfs.c
@@ -3309,6 +3309,8 @@ dnode_get_fullpath (const char *fullpath, struct subvolume *subvol,
       filename = 0;
       snapname = 0;
       fsname = grub_strdup (fullpath);
+      if (!fsname)
+	return grub_errno;
     }
   else
     {
-- 
2.50.1