[SRU][Xenial][Zesty][Artful][azure][PATCH 1/1] CIFS: Fix maximum SMB2 header size

Seth Forshee seth.forshee at canonical.com
Wed Sep 20 13:01:02 UTC 2017


On Fri, Sep 08, 2017 at 09:06:11AM -0400, Joseph Salisbury wrote:
> From: Pavel Shilovsky <pshilov at microsoft.com>
> 
> BugLink: http://bugs.launchpad.net/bugs/1713884
> 
> Currently the maximum size of SMB2/3 header is set incorrectly which
> leads to hanging of directory listing operations on encrypted SMB3
> connections. Fix this by setting the maximum size to 170 bytes that
> is calculated as RFC1002 length field size (4) + transform header
> size (52) + SMB2 header size (64) + create response size (56).
> 
> Cc: <stable at vger.kernel.org>
> Signed-off-by: Pavel Shilovsky <pshilov at microsoft.com>
> Signed-off-by: Steve French <smfrench at gmail.com>
> Acked-by: Sachin Prabhu <sprabhu at redhat.com>
> (cherry picked from commit 9e37b1784f2be9397a903307574ee565bbadfd75)
> Signed-off-by: Joseph Salisbury <joseph.salisbury at canonical.com>

Artful master-next already includes this patch by virtue of having been
updated to 4.13.





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