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Add a reasonable bound on the symbol table index size.

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This commit is contained in:
Mark Johnston 2017-01-05 02:33:10 +00:00
parent d01f7b29a9
commit 1f7967e13b
1 changed files with 4 additions and 2 deletions
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6
lib/libproc/proc_sym.c
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@ -143,10 +143,12 @@ load_symtab(Elf *e, struct symtab *symtab, u_long sh_type)
if (scn == NULL)
return (-1);
if ((symtab->data = elf_getdata(scn, NULL)) == NULL)
nsyms = shdr.sh_size / shdr.sh_entsize;
if (nsyms > (1 << 20))
return (-1);
nsyms = shdr.sh_size / shdr.sh_entsize;
if ((symtab->data = elf_getdata(scn, NULL)) == NULL)
return (-1);
symtab->index = calloc(nsyms, sizeof(u_int));
if (symtab->index == NULL)