{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98867","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.377Z","datePublished":"2026-10-18T15:51:29.499Z","dateUpdated":"2026-10-19T09:27:01.563Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:27:01.563Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-pcache: bound the logical key offset from persistent memory\n\ncache_key_decode() takes a key's logical off from the cache device and\nlater indexes req_key_tree->subtrees[] by it in get_subtree(). An off\npast the device forms a subtree pointer outside the array, which\nrb_insert() writes through during replay.\n\nReject a key of zero length, or whose off+len (computed in 64 bits)\nexceeds the device size, before it is used."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-pcache/cache_key.c"],"versions":[{"version":"1d57628ff95b32d5cfa8d8f50e07690c161e9cf0","lessThan":"3d5a87cb909c1f375f08065b20123fa5db5958d8","status":"affected","versionType":"git"},{"version":"1d57628ff95b32d5cfa8d8f50e07690c161e9cf0","lessThan":"10449703200076980704894c3d68d6796182371b","status":"affected","versionType":"git"},{"version":"1d57628ff95b32d5cfa8d8f50e07690c161e9cf0","lessThan":"97fc4b53dbe4a983fdf093243067fa6a64562307","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-pcache/cache_key.c"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3d5a87cb909c1f375f08065b20123fa5db5958d8"},{"url":"https://git.kernel.org/stable/c/10449703200076980704894c3d68d6796182371b"},{"url":"https://git.kernel.org/stable/c/97fc4b53dbe4a983fdf093243067fa6a64562307"}],"title":"dm-pcache: bound the logical key offset from persistent memory","x_generator":{"engine":"bippy-1.2.0"}}}}