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Description: Improper error handling of VM_SHARED hugetlbfs mapping in mm/hugetlb.c
References:
https://bugzilla.redhat.com/show_bug.cgi?id=1525218
Notes:
bwh> Appears to have been introduced in 4.11 by commit 8fb5debc5fcd "userfaultfd:
bwh> hugetlbfs: add hugetlb_mcopy_atomic_pte for userfaultfd support".
Bugs:
upstream: released (4.13-rc5) [5af10dfd0afc559bb4b0f7e3e8227a1578333995]
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 (4.13.4-1)
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"
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