Description: local DoS due to a page lock order bug in the XFS seek hole/data implementation
References:
Notes:
 possibly introduced by fc0561cefc04e7803c0f6501ca4f310a502f65b8 but needs to
 be verified.
 Cf. http://www.openwall.com/lists/oss-security/2016/10/13/8
 https://bugzilla.novell.com/show_bug.cgi?id=1004532#c10
Bugs:
upstream: needed
4.19-upstream-stable: needed
4.9-upstream-stable: needed
3.16-upstream-stable: N/A "Vulnerable code introduced in (4.4-rc1) [fc0561cefc04e7803c0f6501ca4f310a502f65b8]"
3.2-upstream-stable: N/A "Vulnerable code introduced in (4.4-rc1) [fc0561cefc04e7803c0f6501ca4f310a502f65b8]"
sid: needed
4.19-buster-security: needed
4.9-stretch-security: needed
3.16-jessie-security: N/A "Vulnerable code not present"
3.2-wheezy-security: N/A "Vulnerable code not present"