Re: [PATCH] binfmt_elf_fdpic: only honour the first PT_INTERP

Daniel Palmer <[email protected]>
Newsgroups org.kernel.vger.linux-fsdevel,org.kernel.vger.bpf,org.kernel.vger.stable,org.kvack.linux-mm
Message-ID <[email protected]> 
Hi,

Sorry if I messed this up. First time replying via git.

>Afaict, currently read_code() may blow past what vm_mmap() allocated
>there, which may result in memory corruption for a non MMU system.

I ran Fable on all of the "nommu files" and it found the issue this
commit fixes and the above issue,
I sent a patch (co-written with fable) and we proved this is an actual
issue on nommu via a reproducer tested on a real system.

https://lore.kernel.org/all/[email protected]/

Thanks,

Daniel
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