An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10. Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767. CREATE(Triage):(User=admin) [CVE-2020-12655|https://nvd.nist.gov/vuln/detail/CVE-2020-12655]