{"id":"CVE-2026-72224","title":"nvdimm/btt: Free arenas on btt_init() error paths","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arenas on btt_init() error paths\n\nThe arenas allocated by discover_arenas() or create_arenas() are not\nfreed on some error paths in btt_init(). This le…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 9ab5293d9ac3f2c4232220e563d04701f5f44607","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 68c967e105d50f885e02b0dbdc9211fd5f84bdcd","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 0b63788093ff6ccfffe6e87de9e08aeeb406599c","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 5804e6a6912b5a1e47c821777d69191d69a3fe64","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 7e49684d90faa34ff6d5586be658e986d9d475ac","Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57","Linux 4.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T16:52:58.565861Z"},"published":"2026-08-15","updated":"2026-11-06","sourceUpdated":"2026-11-06T16:55:22.837Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72224","references":[{"url":"https://git.kernel.org/stable/c/9ab5293d9ac3f2c4232220e563d04701f5f44607"},{"url":"https://git.kernel.org/stable/c/68c967e105d50f885e02b0dbdc9211fd5f84bdcd"},{"url":"https://git.kernel.org/stable/c/0b63788093ff6ccfffe6e87de9e08aeeb406599c"},{"url":"https://git.kernel.org/stable/c/5804e6a6912b5a1e47c821777d69191d69a3fe64"},{"url":"https://git.kernel.org/stable/c/52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4"},{"url":"https://git.kernel.org/stable/c/f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b"},{"url":"https://git.kernel.org/stable/c/7e49684d90faa34ff6d5586be658e986d9d475ac"},{"url":"https://git.kernel.org/stable/c/1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57"}],"tags":["cve.org"],"epss":0.0022,"epssPercentile":0.12601,"ingestedAt":"2026-11-06T18:00:12.586Z","slug":"CVE-2026-72224","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arenas on btt_init() error paths\n\nThe arenas allocated by discover_arenas() or create_arenas() are not\nfreed on some error paths in btt_init(). This leaks memory when BTT\ninitialization fails.\n\nCall free_arenas() from the affected error paths to release the\nallocations.\n\n[ as: commit message and log edits ]\n\n## Affected\n\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 9ab5293d9ac3f2c4232220e563d04701f5f44607`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 68c967e105d50f885e02b0dbdc9211fd5f84bdcd`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 0b63788093ff6ccfffe6e87de9e08aeeb406599c`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 5804e6a6912b5a1e47c821777d69191d69a3fe64`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 7e49684d90faa34ff6d5586be658e986d9d475ac`\n- `Linux >= 5212e11fde4d40fa627668b4f2222d20db488f71 < 1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57`\n- `Linux 4.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}