Messages in this thread | | | Date | Thu, 9 Jun 2011 08:48:47 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86-64, vsyscalls: Rename UNSAFE_VSYSCALLS to COMPAT_VSYSCALLS |
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* pageexec@freemail.hu <pageexec@freemail.hu> wrote:
> On 7 Jun 2011 at 11:56, Ingo Molnar wrote: > > > Fedora was able to disable the fixed-address vdso in its newer 32-bit > > distro kernels because it *upgraded glibc*. > > and what happened to those apps that users statically linked against > the older glibc? what happened to their chroots that had dynamically > linked binaries with an older glibc? did you not break those either?
There's two reasons why a distributor will generally not worry about that case:
- No such binaries come with a default distro install
- Keeping such old libraries linked or chrooted can be a security hole in itself, so i dou guarantee something like this.
If another distribution considers this a serious enough issue it can keep the COMPAT_VDSO option enabled forever. Few (none?) did.
Thanks,
Ingo
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