Re: Linux kernel ELF core dump privilege elevation
Paul Starzetz <[email protected]> Wed, 11 May 2005 23:51:21 +0200 (CEST)
| Newsgroups | gmane.comp.security.vulnerabilities.watch.general |
|---|---|
| Message-ID | <Pine.LNX.4.44.0505112350170.15140-100000__5332.8693764799$1115851264$gmane$org@isec.pl> |
On Wed, 11 May 2005, Greg KH wrote:
that seems ok.
> --- gregkh-2.6.orig/fs/binfmt_elf.c 2005-05-11 00:03:45.000000000 -0700
> +++ gregkh-2.6/fs/binfmt_elf.c 2005-05-11 00:09:17.000000000 -0700
> @@ -251,7 +251,7 @@
> }
>
> /* Populate argv and envp */
> - p = current->mm->arg_start;
> + p = current->mm->arg_end = current->mm->arg_start;
> while (argc-- > 0) {
> size_t len;
> __put_user((elf_addr_t)p, argv++);
> @@ -1301,7 +1301,7 @@
> static int fill_psinfo(struct elf_prpsinfo *psinfo, struct task_struct *p,
> struct mm_struct *mm)
> {
> - int i, len;
> + unsigned int i, len;
>
> /* first copy the parameters from user space */
> memset(psinfo, 0, sizeof(struct elf_prpsinfo));
>
--
Paul Starzetz
iSEC Security Research
http://isec.pl/