Description: Out of bound access in hugetlb_mcopy_atomic_pte function in mm/hugetlb.c
References:
 https://bugzilla.redhat.com/show_bug.cgi?id=1525222
Notes:
 bwh> The affected function was added in 4.11 by commit 8fb5debc5fcd "userfaultfd:
 bwh> hugetlbfs: add hugetlb_mcopy_atomic_pte for userfaultfd support".
Bugs:
upstream: released (4.14-rc8) [1e3921471354244f70fe268586ff94a97a6dd4df]
4.9-upstream-stable: N/A "Vulnerable code not present"
3.16-upstream-stable: N/A "Vulnerable code not present"
3.2-upstream-stable: N/A "Vulnerable code not present"
sid: released (4.13.13-1)
4.9-stretch-security: N/A "Vulnerable code not present"
3.16-jessie-security: N/A "Vulnerable code not present"
3.2-wheezy-security: N/A "Vulnerable code not present"