Messages in this thread | | | From | Linus Torvalds <> | Date | Sun, 12 Dec 2021 11:35:56 -0800 | Subject | Re: [PATCH] fs/binfmt_elf.c: disallow zero entry point address |
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[ Crossed emails ]
On Sun, Dec 12, 2021 at 11:30 AM H.J. Lu <hjl.tools@gmail.com> wrote: > > On Linux, the start of the first PT_LOAD segment is the ELF > header and the address 0 points to the ELF magic bytes which > isn't a valid code sequence.
Yeah, then I think a much more valid argument (and patch) is _that_ argument.
So that kind of explanation, along with a patch more along the line of that
if (elf_ex->e_entry < header_sizes) goto out;
I suggested, and not talking about paper standards that may or may not be relevant.
That would be much more palatable to me - it's a _technical_ argument, not a "some paper standard that we clearly have never followed" argument.
Linus
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