Fix a couple of NULL pointer derefs.

Found by: zzuf (http://sam.zoy.org/zzuf/)

svn path=/trunk/yasm/; revision=1808

diff --git a/modules/objfmts/elf/elf-objfmt.c b/modules/objfmts/elf/elf-objfmt.c
index c0ae84164c382d31cb8e19d322f271cfe01cdac1..d239f0578a56853544e0b4884ec490f11a5d9a86 100644 (file)
--- a/modules/objfmts/elf/elf-objfmt.c
+++ b/modules/objfmts/elf/elf-objfmt.c
@@ -1118,7 +1118,7 @@ dir_type(yasm_objfmt_elf *objfmt_elf, yasm_valparam *vp, unsigned long line)
 
     /* Pull new type from val */
     vp = yasm_vps_next(vp);
-    if (vp->val) {
+    if (vp && vp->val) {
        if (yasm__strcasecmp(vp->val, "function") == 0)
            elf_sym_set_type(entry, STT_FUNC);
        else if (yasm__strcasecmp(vp->val, "object") == 0)
@@ -1147,10 +1147,10 @@ dir_size(yasm_objfmt_elf *objfmt_elf, yasm_valparam *vp, unsigned long line)
 
     /* Pull new size from either param (expr) or val */
     vp = yasm_vps_next(vp);
-    if (vp->param) {
+    if (vp && vp->param) {
        elf_sym_set_size(entry, vp->param);
        vp->param = NULL;
-    } else if (vp->val)
+    } else if (vp && vp->val)
        elf_sym_set_size(entry, yasm_expr_create_ident(yasm_expr_sym(
            yasm_symtab_use(objfmt_elf->symtab, vp->val, line)), line));
     else