{"id":"CVE-2026-72223","summary":"nvdimm/btt: Free arena sub-allocations on discover_arenas() error path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvdimm/btt: Free arena sub-allocations on discover_arenas() error path\n\nMemory allocated by btt_freelist_init(), btt_rtt_init(), and\nbtt_maplocks_init() is not freed on some discover_arenas() error\npaths. This leaks memory when arena discovery fails.\n\nAdd the missing kfree() calls to release the allocations before\nreturning an error.\n\n[ as: commit message and log edits ]","modified":"2026-08-18T03:31:05.120386984Z","published":"2026-08-15T05:54:16.019Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72223.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0b0d9404951aacc9717aa61e77af4a6e9e8f8249"},{"type":"WEB","url":"https://git.kernel.org/stable/c/13fe4cd9ddd0aacb7777812328be525a11ea3fea"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d0364937550a7b3e2592629c2a68753ac020b28"},{"type":"WEB","url":"https://git.kernel.org/stable/c/30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7563f69caa9143a491d5f26e563255c734751545"},{"type":"WEB","url":"https://git.kernel.org/stable/c/873ced7f345e99f7ee16f9ff226515580332ecc4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ba59b96d8d21dc8729fca44a022ca5919c1848c9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eeb95774bc79268e2b78ebf01d8781560b5bd671"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72223.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72223"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5212e11fde4d40fa627668b4f2222d20db488f71"},{"fixed":"2d0364937550a7b3e2592629c2a68753ac020b28"},{"fixed":"eeb95774bc79268e2b78ebf01d8781560b5bd671"},{"fixed":"7563f69caa9143a491d5f26e563255c734751545"},{"fixed":"0b0d9404951aacc9717aa61e77af4a6e9e8f8249"},{"fixed":"873ced7f345e99f7ee16f9ff226515580332ecc4"},{"fixed":"30d490bb2c4cd220e7dedf862ab6a09eb5dcbad5"},{"fixed":"ba59b96d8d21dc8729fca44a022ca5919c1848c9"},{"fixed":"13fe4cd9ddd0aacb7777812328be525a11ea3fea"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72223.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72223.json"}}],"schema_version":"1.9.0"}