{"id":"CVE-2025-71269","revision":"987fe094875b44d1b9624db07d7c2543","records":[{"revision":"987fe094875b44d1b9624db07d7c2543","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-71269","aliases":[],"title":"btrfs: do not free data reservation in fallback from inline due to -ENOSPC","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not free data reservation in fallback from inline due to -ENOSPC\n\nIf we fail to create an inline extent due to -ENOSPC, we will attempt to\ngo through the normal COW path, reserve an extent, create an ordered\nextent, etc. However we were always freeing the reserved qgroup data,\nwhich is wrong since we will use data. Fix this by freeing the reserved\nqgroup data in __cow_file_range_inline() only if we are not doing the\nfallback (ret is <= 0).","state":0,"publishedAt":"2026-03-18T17:40:58.949+00:00","modifiedAt":"2026-10-19T18:25:25.16+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/btrfs/inode.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"94ed938aba557aa798acf496f09afb289b619fcd\",\n                            \"lessThan\": \"3edd1f6c7c520536b62b2904807033597554dbac\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"94ed938aba557aa798acf496f09afb289b619fcd\",\n                            \"lessThan\": \"3a9fd45afadec1fbfec72057b9473d509fa8b68c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"94ed938aba557aa798acf496f09afb289b619fcd\",\n                            \"lessThan\": \"0a1fbbd780f04d1b6cf48dd327c866ba937de1c4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"94ed938aba557aa798acf496f09afb289b619fcd\",\n                            \"lessThan\": \"6de3a371a8b9fd095198b1aa68c22cc10a4c6961\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"94ed938aba557aa798acf496f09afb289b619fcd\",\n                            \"lessThan\": \"f8da41de0bff9eb1d774a7253da0c9f637c4470a\",\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/btrfs/inode.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.4\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.168\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.134\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.81\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.10\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/3edd1f6c7c520536b62b2904807033597554dbac","https://git.kernel.org/stable/c/3a9fd45afadec1fbfec72057b9473d509fa8b68c","https://git.kernel.org/stable/c/0a1fbbd780f04d1b6cf48dd327c866ba937de1c4","https://git.kernel.org/stable/c/6de3a371a8b9fd095198b1aa68c22cc10a4c6961","https://git.kernel.org/stable/c/f8da41de0bff9eb1d774a7253da0c9f637c4470a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71269","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-71269","identifiers":["CVE-2025-71269"]},"retained":false,"historicalAffected":[]}],"coverage":[]}