{"id":"CVE-2026-23260","state":"PUBLISHED","title":"regmap: maple: free entry on mas_store_gfp() failure","description":"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_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').","publishedAt":"2026-03-18T17:41:06.738Z","updatedAt":"2026-05-11T22:03:25.152Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"d61171cf097156030142643942c217759a9cc806","versionType":"git"},{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"811b45e2d795d955bb7fd9c816b40036f4fde350","versionType":"git"},{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"f08f2d2907675926ac5657b25f86d921f269602a","versionType":"git"},{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regcache-maple.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.124","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.70","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.10","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regcache-maple.c"]}],"references":["https://git.kernel.org/stable/c/d61171cf097156030142643942c217759a9cc806","https://git.kernel.org/stable/c/811b45e2d795d955bb7fd9c816b40036f4fde350","https://git.kernel.org/stable/c/f08f2d2907675926ac5657b25f86d921f269602a","https://git.kernel.org/stable/c/f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23260.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23260","state":"PUBLISHED","datePublished":"2026-03-18T17:41:06.738Z","dateUpdated":"2026-05-11T22:03:25.152Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.990Z"},"containers":{"cna":{"title":"regmap: maple: free entry on mas_store_gfp() failure","descriptions":[{"lang":"en","value":"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_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')."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"d61171cf097156030142643942c217759a9cc806","versionType":"git"},{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"811b45e2d795d955bb7fd9c816b40036f4fde350","versionType":"git"},{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"f08f2d2907675926ac5657b25f86d921f269602a","versionType":"git"},{"version":"f033c26de5a5734625d2dd1dc196745fae186f1b","status":"affected","lessThan":"f3f380ce6b3d5c9805c7e0b3d5bc28d9ec41e2e8","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regcache-maple.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.124","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.70","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.10","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regcache-maple.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:03:25.152Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.124"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.70"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}