Ubuntu Security Notice 3932-1 - It was discovered that a race condition existed in the f2fs file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service. Wen Xu discovered that the f2fs file system implementation in the Linux kernel did not properly validate metadata. An attacker could use this to construct a malicious f2fs image that, when mounted, could cause a denial of service. Various other issues were also addressed.
8a9cf057269e567e457b41d6710b7b91e84287f5f6e3ab62365a668b68242bbc