[CVE-2017-5551][Yakkety SRU] tmpfs: clear S_ISGID when setting posix ACLs

[Po-Hsu Lin]

This patch can be cherry-picked for Yakkety, this is the patch for the
incomplete fix of CVE-2016-7097, which hasn't landed in Trusty. So it
makes the Yakkety the only affected release.

 as the fix for CVE-

Gu Zheng (1):
  tmpfs: clear S_ISGID when setting posix ACLs

 fs/posix_acl.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

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1.7.9.5