The UDF filesystem implementation in the Linux kernel before 3.18.2 does not validate certain lengths, which allows local users to cause a denial of service (buffer over-read and system crash) via a crafted filesystem image, related to fs/udf/inode.c and fs/udf/symlink.c.
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
https://bugzilla.redhat.com/show_bug.cgi?id=1228229
https://github.com/torvalds/linux/commit/a1d47b262952a45aae62bd49cfaf33dd76c11a2c
https://github.com/torvalds/linux/commit/e159332b9af4b04d882dbcfe1bb0117f0a6d4b58
https://github.com/torvalds/linux/commit/e237ec37ec154564f8690c5bd1795339955eeef9
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.2