[ELFLOADER] Zero'd memory when using mmap and filesize smaller than m…

…emsize
ptitSeb · Jan 21, 2024 · 2c58b45 · 2c58b45
1 parent 159351f
commit 2c58b45
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/elfs/elfloader.c b/src/elfs/elfloader.c
@@ -271,6 +271,8 @@ int AllocLoadElfMemory(box86context_t* context, elfheader_t* head, int mainbin)
                         printf_log(log_level, " got %p instead\n", p);
                     }
                 } else {
+                    if(e->p_memsz>e->p_filesz)
+                        memset((void*)((uintptr_t)p + e->p_filesz), 0, e->p_memsz-e->p_filesz);
                     setProtection_elf((uintptr_t)p, head->multiblocks[n].asize, prot);
                     head->multiblocks[n].p = p;