{"id":"CVE-2026-72224","state":"PUBLISHED","title":"nvdimm/btt: Free arenas on btt_init() error paths","description":"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 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 ]","publishedAt":"2026-08-15T05:54:16.781Z","updatedAt":"2026-08-17T05:10:39.755Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"9ab5293d9ac3f2c4232220e563d04701f5f44607","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"68c967e105d50f885e02b0dbdc9211fd5f84bdcd","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"0b63788093ff6ccfffe6e87de9e08aeeb406599c","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"5804e6a6912b5a1e47c821777d69191d69a3fe64","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"7e49684d90faa34ff6d5586be658e986d9d475ac","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvdimm/btt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.2","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvdimm/btt.c"]}],"references":["https://git.kernel.org/stable/c/9ab5293d9ac3f2c4232220e563d04701f5f44607","https://git.kernel.org/stable/c/68c967e105d50f885e02b0dbdc9211fd5f84bdcd","https://git.kernel.org/stable/c/0b63788093ff6ccfffe6e87de9e08aeeb406599c","https://git.kernel.org/stable/c/5804e6a6912b5a1e47c821777d69191d69a3fe64","https://git.kernel.org/stable/c/52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4","https://git.kernel.org/stable/c/f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b","https://git.kernel.org/stable/c/7e49684d90faa34ff6d5586be658e986d9d475ac","https://git.kernel.org/stable/c/1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72224.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72224","state":"PUBLISHED","datePublished":"2026-08-15T05:54:16.781Z","dateUpdated":"2026-08-17T05:10:39.755Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.913Z"},"containers":{"cna":{"title":"nvdimm/btt: Free arenas on btt_init() error paths","descriptions":[{"lang":"en","value":"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 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 ]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"9ab5293d9ac3f2c4232220e563d04701f5f44607","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"68c967e105d50f885e02b0dbdc9211fd5f84bdcd","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"0b63788093ff6ccfffe6e87de9e08aeeb406599c","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"5804e6a6912b5a1e47c821777d69191d69a3fe64","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"52a7e7ece79c4b0f406149e19cd2b4b11a6c19e4","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"f4ca396bdd60b4e0a665b2589bfc4ddbea9bda2b","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"7e49684d90faa34ff6d5586be658e986d9d475ac","versionType":"git"},{"version":"5212e11fde4d40fa627668b4f2222d20db488f71","status":"affected","lessThan":"1a6b6442a982d0ca5fb6a1a39b6f6dfd760eda57","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvdimm/btt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.2","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvdimm/btt.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:10:39.755Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}