X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=BaseTools%2FSource%2FC%2FGenFw%2FElf64Convert.c;h=9ffb367e4365b39588c3008335dfdc2d210a68d5;hp=54011d75f1ec6c9951071be5b5261a091200e058;hb=d78675d1956aaae05d5db872eddd4119a01d0ecb;hpb=3f0218003141ae38152f5a2520c969445afc721f

diff --git a/BaseTools/Source/C/GenFw/Elf64Convert.c b/BaseTools/Source/C/GenFw/Elf64Convert.c
index 54011d75f1..9ffb367e43 100644
--- a/BaseTools/Source/C/GenFw/Elf64Convert.c
+++ b/BaseTools/Source/C/GenFw/Elf64Convert.c
@@ -670,6 +670,9 @@ WriteSections64 (
       switch (Shdr->sh_type) {
       case SHT_PROGBITS:
         /* Copy.  */
+        if (Shdr->sh_offset + Shdr->sh_size > mFileBufferSize) {
+          return FALSE;
+        }
         memcpy(mCoffFile + mCoffSectionsOffset[Idx],
               (UINT8*)mEhdr + Shdr->sh_offset,
               (size_t) Shdr->sh_size);