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January 2012

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Subject:
Re: REISSUE - Security ERRATA Low: nfs-utils on SL6.x i386/x86_64
From:
Glenn Morris <[log in to unmask]>
Reply To:
Glenn Morris <[log in to unmask]>
Date:
Wed, 11 Jan 2012 12:15:59 -0800
Content-Type:
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Pat Riehecky wrote:

> A new version of nfs-utils (nfs-utils-1.2.3-15.el6.0.sl6) has been
> posted in the Scientific Linux testing repository.  The only
> difference between it and the existing one is an incremented version
> number.  If testing verifies it works as expected it may be placed in
> the security tree.

If I upgrade from the (fixed) nfs-utils-1.2.3-15.el6.x86_64 rpm to this
version on otherwise up-to-date SL 6.1 x86_64 systems, the umount.nfs
segfault issue is back:

  umount.nfs[18630]: segfault at 19 ip 00007f605615653a sp 00007fffd63705c0 error 4 in libc-2.12.so[7f60560df000+197000]

It only seems to occur with NFS mounts served from a RHEL 5.7 x86_64 system.
There is no problem with unmounting mounts served from a RHEL 6.1 x86_64
NFS system.

This behaviour persists after a reboot.

Downgrading back to nfs-utils-1.2.3-15.el6.x86_64 makes the issue go
away again.

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