Bernhard Übelacker : dbghelp: Return early if HeapAlloc failed.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: c3ef1a6c67673b846dabed4c5e9c0b4f25b5849e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/c3ef1a6c67673b846dabed4c5e9c0b4...

Author: Bernhard Übelacker <bernhardu(a)mailbox.org>
Date:   Sat Jan 20 14:21:16 2024 +0100

dbghelp: Return early if HeapAlloc failed.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=56223

---

 dlls/dbghelp/msc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dlls/dbghelp/msc.c b/dlls/dbghelp/msc.c
index 7f695928e4a..a62667ea8c3 100644
--- a/dlls/dbghelp/msc.c
+++ b/dlls/dbghelp/msc.c
@@ -3036,6 +3036,7 @@ static void* pdb_jg_read(const struct PDB_JG_HEADER* pdb, const WORD* block_list
 
     num_blocks = (size + pdb->block_size - 1) / pdb->block_size;
     buffer = HeapAlloc(GetProcessHeap(), 0, num_blocks * pdb->block_size);
+    if (!buffer) return NULL;
 
     for (i = 0; i < num_blocks; i++)
         memcpy(buffer + i * pdb->block_size,
@@ -3054,6 +3055,7 @@ static void* pdb_ds_read(const struct PDB_DS_HEADER* pdb, const UINT *block_list
 
     num_blocks = (size + pdb->block_size - 1) / pdb->block_size;
     buffer = HeapAlloc(GetProcessHeap(), 0, num_blocks * pdb->block_size);
+    if (!buffer) return NULL;
 
     for (i = 0; i < num_blocks; i++)
         memcpy(buffer + i * pdb->block_size,