{"id":"CVE-2026-45896","state":"PUBLISHED","title":"mtd: intel-dg: Fix accessing regions before setting nregions","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: intel-dg: Fix accessing regions before setting nregions\n\nThe regions array is counted by nregions, but it's set only after\naccessing it:\n\n[] UBSAN: array-index-out-of-bounds in drivers/mtd/devices/mtd_intel_dg.c:750:15\n[] index 0 is out of range for type '<unknown> [*]'\n\nFix it by also fixing an undesired behavior: the loop silently ignores\nENOMEM and continues setting the other entries.","publishedAt":"2026-05-27T12:17:06.332Z","updatedAt":"2026-05-27T12:17:06.332Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ceb5ab3cb64637952657be23d347e1c79dd02212","status":"affected","lessThan":"721bd22bcf45a63ebd9bd0f478ef721b45cc5383","versionType":"git"},{"version":"ceb5ab3cb64637952657be23d347e1c79dd02212","status":"affected","lessThan":"d58fca8513414b15387460b14a7a0a30405b9c9e","versionType":"git"},{"version":"ceb5ab3cb64637952657be23d347e1c79dd02212","status":"affected","lessThan":"779c59274d03cc5c07237a2c845dfb71cff77705","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/devices/mtd_intel_dg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/devices/mtd_intel_dg.c"]}],"references":["https://git.kernel.org/stable/c/721bd22bcf45a63ebd9bd0f478ef721b45cc5383","https://git.kernel.org/stable/c/d58fca8513414b15387460b14a7a0a30405b9c9e","https://git.kernel.org/stable/c/779c59274d03cc5c07237a2c845dfb71cff77705"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45896.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45896","state":"PUBLISHED","datePublished":"2026-05-27T12:17:06.332Z","dateUpdated":"2026-05-27T12:17:06.332Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.083Z"},"containers":{"cna":{"title":"mtd: intel-dg: Fix accessing regions before setting nregions","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: intel-dg: Fix accessing regions before setting nregions\n\nThe regions array is counted by nregions, but it's set only after\naccessing it:\n\n[] UBSAN: array-index-out-of-bounds in drivers/mtd/devices/mtd_intel_dg.c:750:15\n[] index 0 is out of range for type '<unknown> [*]'\n\nFix it by also fixing an undesired behavior: the loop silently ignores\nENOMEM and continues setting the other entries."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ceb5ab3cb64637952657be23d347e1c79dd02212","status":"affected","lessThan":"721bd22bcf45a63ebd9bd0f478ef721b45cc5383","versionType":"git"},{"version":"ceb5ab3cb64637952657be23d347e1c79dd02212","status":"affected","lessThan":"d58fca8513414b15387460b14a7a0a30405b9c9e","versionType":"git"},{"version":"ceb5ab3cb64637952657be23d347e1c79dd02212","status":"affected","lessThan":"779c59274d03cc5c07237a2c845dfb71cff77705","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/devices/mtd_intel_dg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mtd/devices/mtd_intel_dg.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/721bd22bcf45a63ebd9bd0f478ef721b45cc5383"},{"url":"https://git.kernel.org/stable/c/d58fca8513414b15387460b14a7a0a30405b9c9e"},{"url":"https://git.kernel.org/stable/c/779c59274d03cc5c07237a2c845dfb71cff77705"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-27T12:17:06.332Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}