lkml.org 
[lkml]   [2005]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Potential DOS in load_elf_library?
Yichen Xie <yxie@cs.stanford.edu> wrote:
>
> Hi guys, I was looking at the load_elf_library function (fs/binfmt_elf.c)
> in 2.6.10, and noticed the following:
>
> elf_phdata = (struct elf_phdr *) kmalloc(j, GFP_KERNEL);
> ...
> while (elf_phdata->p_type != PT_LOAD) elf_phdata++;
> ...
> kfree(elf_phdata);
>
> Could this be problematic since the pointer being freed might be different
> from that returned from kmalloc?

Current kernels seem to be OK.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:11    [W:0.049 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site