{"id":"CVE-2026-23260","title":"regmap: maple: free entry on mas_store_gfp() failure","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: maple: free entry on mas_store_gfp() failure\n\nregcache_maple_write() allocates a new block ('entry') to merge\nadjacent ranges and then stores it with mas_store_…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < d61171cf097156030142643942c217759a9cc806","Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < 811b45e2d795d955bb7fd9c816b40036f4fde350","Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < f08f2d2907675926ac5657b25f86d921f269602a","Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8","Linux 6.4"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:24:17.109450Z"},"published":"2026-03-18","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:33:34.221Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23260","references":[{"url":"https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806"},{"url":"https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350"},{"url":"https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602a"},{"url":"https://git.kernel.org/stable/c/f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8"}],"tags":["cve.org"],"epss":0.00121,"epssPercentile":0.01913,"ingestedAt":"2026-11-05T22:38:32.105Z","slug":"CVE-2026-23260","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nregmap: maple: free entry on mas_store_gfp() failure\n\nregcache_maple_write() allocates a new block ('entry') to merge\nadjacent ranges and then stores it with mas_store_gfp().\nWhen mas_store_gfp() fails, the new 'entry' remains allocated and\nis never freed, leaking memory.\n\nFree 'entry' on the failure path; on success continue freeing the\nreplaced neighbor blocks ('lower', 'upper').\n\n## Affected\n\n- `Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < d61171cf097156030142643942c217759a9cc806`\n- `Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < 811b45e2d795d955bb7fd9c816b40036f4fde350`\n- `Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < f08f2d2907675926ac5657b25f86d921f269602a`\n- `Linux >= f033c26de5a5734625d2dd1dc196745fae186f1b < f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8`\n- `Linux 6.4`\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":[]}