{"id":"CVE-2026-97551","revision":"25f6d49ff6b54684a3e7e348728e5d8e","records":[{"revision":"25f6d49ff6b54684a3e7e348728e5d8e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97551","aliases":[],"title":"xfs: initialise args->total for parent pointer updates","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: initialise args->total for parent pointer updates\n\nxfs_parent_da_args_init() builds an xfs_da_args from a zeroed\nxfs_parent_args (kmem_cache_zalloc), leaving args->total == 0.\nxfs_da_grow_inode_int() treats that field as a running block reservation\nand subtracts from it; because it is an xfs_extlen_t (uint32_t), the\nfirst attr-fork growth wraps it to ~0U.  That defeats the free-space\ncheck in xfs_alloc_space_available(), and when it coincides with an AG\nthat has exactly zero available blocks the allocation is clamped to\nmaxlen 0 and returns -ENOSPC, which xfs_defer_finish_noroll() escalates\nto a filesystem shutdown.\n\nSet args->total the way the log recovery path does\n(xfs_attri_recover_work(), xfs_attr_item.c:706), in the add and replace\npaths that can grow the fork.  Removals and lookups never grow it, so\nthey leave the field alone, matching that switch.","state":0,"publishedAt":"2026-09-25T10:21:44.048+00:00","modifiedAt":"2026-10-19T09:09:14.354+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/xfs/libxfs/xfs_parent.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff\",\n                            \"lessThan\": \"9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff\",\n                            \"lessThan\": \"c66e138af626cad4210da449996ae9e07ee63add\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff\",\n                            \"lessThan\": \"ac9032882d673dd6679e1d873a2dc0131a1aeb43\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b7c62d90c12c6cc86f10b8a62cefe0029374b6ff\",\n                            \"lessThan\": \"8e4ebb6afaa34bd2e8ce52da231003d24111c2d6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/xfs/libxfs/xfs_parent.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/9ad85bce62cadfdf4242f6e6bbff2a52e51d30f1","https://git.kernel.org/stable/c/c66e138af626cad4210da449996ae9e07ee63add","https://git.kernel.org/stable/c/ac9032882d673dd6679e1d873a2dc0131a1aeb43","https://git.kernel.org/stable/c/8e4ebb6afaa34bd2e8ce52da231003d24111c2d6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97551","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97551","identifiers":["CVE-2026-97551"]},"retained":false,"historicalAffected":[]}],"coverage":[]}