[SRU][Artful][PATCH 0/1] iov_iter: fix page_copy_sane for compound pages

Joseph Salisbury joseph.salisbury at canonical.com
Fri Jun 1 16:29:36 UTC 2018


BugLink: http://bugs.launchpad.net/bugs/1772031

== SRU Justification ==
Artful is missing commit a90bcb86ae70, which was sent
to upstream stable.  Since upstream 4.13 is EOL, Artful never got it. 

Because Artful does not have this commit when receiving large UDP packages 
with a small MTU there are backtraces, examples posted in the bug.

Commit a90bcb86ae70 is in mainline as ov v4.14-rc2 and is only needed in
Artful.

== Fix ==
a90bcb86ae70 ("iov_iter: fix page_copy_sane for compound pages")

== Regression Potential ==
Low.  This commit fixes a current regression in Artful.  It was also
cc'd to stable, so it has had additional upstream review.

== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
The bug reporter states the test kernel resolved the bug.


Petar Penkov (1):
  iov_iter: fix page_copy_sane for compound pages

 lib/iov_iter.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

-- 
2.7.4





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