buildroot/boot/grub2/0046-disk-Prevent-overflows-when-allocating-memory-for-ar.patch

From d9f900247eb886176aace7888be941348a9c8fc8 Mon Sep 17 00:00:00 2001
From: Alec Brown <alec.r.brown@oracle.com>
Date: Wed, 22 Jan 2025 02:55:10 +0000
Subject: [PATCH] disk: Prevent overflows when allocating memory for arrays

Use grub_calloc() when allocating memory for arrays to ensure proper
overflow checks are in place.

Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

Conflicts:
	grub-core/disk/cryptodisk.c

Upstream: d8151f98331ee4d15fcca59edffa59246d8fc15f
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
 grub-core/disk/lvm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/grub-core/disk/lvm.c b/grub-core/disk/lvm.c
index 794248540..a395b200d 100644
--- a/grub-core/disk/lvm.c
+++ b/grub-core/disk/lvm.c
@@ -671,8 +671,7 @@ grub_lvm_detect (grub_disk_t disk,
 			  goto lvs_segment_fail;
 			}
 
-		      seg->nodes = grub_zalloc (sizeof (seg->nodes[0])
-						* seg->node_count);
+		      seg->nodes = grub_calloc (seg->node_count, sizeof (seg->nodes[0]));
 
 		      p = grub_strstr (p, "mirrors = [");
 		      if (p == NULL)
@@ -760,8 +759,7 @@ grub_lvm_detect (grub_disk_t disk,
 			    }
 			}
 
-		      seg->nodes = grub_zalloc (sizeof (seg->nodes[0])
-						* seg->node_count);
+		      seg->nodes = grub_calloc (seg->node_count, sizeof (seg->nodes[0]));
 
 		      p = grub_strstr (p, "raids = [");
 		      if (p == NULL)
-- 
2.50.1