Potential DOS in load_elf_library?

From: Yichen Xie
Date: Fri Mar 18 2005 - 03:16:47 EST


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?
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