{"id":"CVE-2025-71268","title":"btrfs: fix reservation leak in some error paths when inserting inline extent","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix reservation leak in some error paths when inserting inline extent\n\nIf we fail to allocate a path or join a transaction, we return from\n__cow_file_range_inlin…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < f7156512c8166d385f574b9ec030479aa7b1e8c9","Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < 28b97fcbbf523779688e8de5fe55bf2dae3859f6","Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < f3ee1732851aec6fe6b2cec2ef1b32d4e71d9913","Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < 28768bd3abf9995a93f6e01bfce01c60622964dd","Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < c1c050f92d8f6aac4e17f7f2230160794fceef0c","Linux 4.4"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T15:06:12.033724Z"},"published":"2026-03-18","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:09:48.132Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71268","references":[{"url":"https://git.kernel.org/stable/c/f7156512c8166d385f574b9ec030479aa7b1e8c9"},{"url":"https://git.kernel.org/stable/c/28b97fcbbf523779688e8de5fe55bf2dae3859f6"},{"url":"https://git.kernel.org/stable/c/f3ee1732851aec6fe6b2cec2ef1b32d4e71d9913"},{"url":"https://git.kernel.org/stable/c/28768bd3abf9995a93f6e01bfce01c60622964dd"},{"url":"https://git.kernel.org/stable/c/c1c050f92d8f6aac4e17f7f2230160794fceef0c"}],"tags":["cve.org"],"epss":0.00228,"epssPercentile":0.12632,"ingestedAt":"2026-10-16T17:24:46.637Z","slug":"CVE-2025-71268","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix reservation leak in some error paths when inserting inline extent\n\nIf we fail to allocate a path or join a transaction, we return from\n__cow_file_range_inline() without freeing the reserved qgroup data,\nresulting in a leak. Fix this by ensuring we call btrfs_qgroup_free_data()\nin such cases.\n\n## Affected\n\n- `Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < f7156512c8166d385f574b9ec030479aa7b1e8c9`\n- `Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < 28b97fcbbf523779688e8de5fe55bf2dae3859f6`\n- `Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < f3ee1732851aec6fe6b2cec2ef1b32d4e71d9913`\n- `Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < 28768bd3abf9995a93f6e01bfce01c60622964dd`\n- `Linux >= 94ed938aba557aa798acf496f09afb289b619fcd < c1c050f92d8f6aac4e17f7f2230160794fceef0c`\n- `Linux 4.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}