Eric Pouech : winedump: Be stricter about sizes while walking module's list.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e8777691c8b54f21339fcc268b3a916e8a55fd71
URL:    https://gitlab.winehq.org/wine/wine/-/commit/e8777691c8b54f21339fcc268b3a916...

Author: Eric Pouech 
Date:   Wed Feb  1 18:30:50 2023 +0100

winedump: Be stricter about sizes while walking module's list.

Signed-off-by: Eric Pouech

---

tools/winedump/pdb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/winedump/pdb.c b/tools/winedump/pdb.c
index 787a62fe624..b13161c6c7a 100644
--- a/tools/winedump/pdb.c
+++ b/tools/winedump/pdb.c
@@ -637,6 +637,9 @@ static void pdb_dump_symbols(struct pdb_reader* reader, PDB_STREAM_INDEXES* sidx
     /* Read per-module symbol / linenumber tables */
     file = (const char*)symbols + sizeof(PDB_SYMBOLS);
     while (file - (const char*)symbols < sizeof(PDB_SYMBOLS) + symbols->module_size)
+    while ((file - (const char*)symbols + sizeof(symbols->version) < sizeof(PDB_SYMBOLS) + symbols->module_size) &&
+           (file - (const char*)symbols +
+            symbols->version < 19970000 ? sizeof(PDB_SYMBOL_FILE) : sizeof(PDB_SYMBOL_FILE_EX)) < sizeof(PDB_SYMBOLS) + symbols->module_size)
     {
         int stream_nr, symbol_size, lineno_size, lineno2_size;
         const char* file_name;