From: Florian Weimer <fweimer@redhat.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
Subject: Re: [PATCH 2/2] elf: Detect PT_LOAD segments that extend beyond EOF and refuse loading
Date: Fri, 05 Nov 2021 15:41:32 +0100 [thread overview]
Message-ID: <87ilx6u0kj.fsf@oldenburg.str.redhat.com> (raw)
In-Reply-To: <CAMe9rOrMB4sf_zdwpuic0+5MaP73h_DOdapGtOw4AZKS1XRvig@mail.gmail.com> (H. J. Lu's message of "Fri, 5 Nov 2021 07:37:38 -0700")
* H. J. Lu:
> So dlopen should reject it. Can you identify the broken tools which
> generate such input files and black list them for this test?
It's objcopy --only-keep-debug, and it behaves as expted Separated
debuginfo is broken by design. The program headers do not correspond to
the file contents, but match the original ELF file.
> Of course, ld.so can improve sanity checks. But we need really broken
> inputs for such checks.
elf/tst-debug1 deliberately uses a broken input file.
Thanks,
Florian
next prev parent reply other threads:[~2021-11-05 14:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-05 13:59 [PATCH 0/2] Avoid some crashes when loading separate debuginfo Florian Weimer
2021-11-05 13:59 ` [PATCH 1/2] Use sysdeps/posix/dl-fileid.h as the generic and only implementation Florian Weimer
2021-11-08 15:54 ` H.J. Lu
2021-11-05 13:59 ` [PATCH 2/2] elf: Detect PT_LOAD segments that extend beyond EOF and refuse loading Florian Weimer
2021-11-05 14:04 ` H.J. Lu
2021-11-05 14:07 ` Florian Weimer
2021-11-05 14:26 ` H.J. Lu
2021-11-05 14:31 ` Florian Weimer
2021-11-05 14:37 ` H.J. Lu
2021-11-05 14:41 ` Florian Weimer [this message]
2021-11-05 15:03 ` H.J. Lu
2021-11-05 15:50 ` Florian Weimer
2021-11-05 14:30 ` Adhemerval Zanella
2021-11-05 14:35 ` Florian Weimer
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