{"id":"CVE-2026-98456","aliases":[],"cve":{"records":[{"id":"CVE-2026-98456","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.350Z","published":"2026-10-18T15:15:05.909Z","modified":"2026-10-30T12:38:14.270Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-10-30T12:38:14.270Z"}],"references":[{"url":"https://git.kernel.org/stable/c/fa6f79bb0009406bb11e6912b53ab7c564d6f06b","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/76dc7e0297f6f7ebefc36a69251e3f4a676d9853","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/9c32455f490b960efccedd041c7aabb1a04c5cc4","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/524e0450dd9a396f99a81b045219b0e2ea0dab57","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/8ddf962c76432a10a6cb80042875cbc48a9c056b","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/416546cd6a54e9b68f2b91bc680b1ee17dcd77a1","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/2e8bba0360d1379bfa8da47c8f5dadbb10a3fba1","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/b5dbb41b212c50c095a4dbee3017a84fe94f033b","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"7.3"}]}]}]}],"prioritization":[]},"title":"Bluetooth: mgmt: fix race in read_unconf_index_list()","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: mgmt: fix race in read_unconf_index_list()\n\nread_unconf_index_list() counts unconfigured controllers before allocating\nits response, then checks the device flags again while filling it.\n\nhci_dev_list_lock stabilizes list membership, but it does not serialize the\nper-device flags. During asynchronous controller setup, the worker can set\nHCI_UNCONFIGURED and clear HCI_SETUP between the two passes. A controller\nomitted from the allocation count can then become eligible for the fill\npass, causing an out-of-bounds write to rp->index[].\n\nAllocate space for every device on hci_dev_list. Since list membership\ncannot change while hci_dev_list_lock is held, the response remains large\nenough regardless of flag transitions. The reported count and response\nlength still include only eligible unconfigured controllers.","score":7,"severity":"high","published":"2026-10-18T15:15:05.909Z","modified":"2026-10-30T12:38:14.270Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"fa6f79bb0009406bb11e6912b53ab7c564d6f06b","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"76dc7e0297f6f7ebefc36a69251e3f4a676d9853","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"9c32455f490b960efccedd041c7aabb1a04c5cc4","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"524e0450dd9a396f99a81b045219b0e2ea0dab57","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"8ddf962c76432a10a6cb80042875cbc48a9c056b","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"416546cd6a54e9b68f2b91bc680b1ee17dcd77a1","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"2e8bba0360d1379bfa8da47c8f5dadbb10a3fba1","versionType":"git"},{"version":"73d1df2a7a1036a1f000e5f0ece6ade3e082b854","status":"affected","lessThan":"b5dbb41b212c50c095a4dbee3017a84fe94f033b","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98456"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"3.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.17","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.55","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.9","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98456"}],"remediation":[],"references":["https://git.kernel.org/stable/c/fa6f79bb0009406bb11e6912b53ab7c564d6f06b","https://git.kernel.org/stable/c/76dc7e0297f6f7ebefc36a69251e3f4a676d9853","https://git.kernel.org/stable/c/9c32455f490b960efccedd041c7aabb1a04c5cc4","https://git.kernel.org/stable/c/524e0450dd9a396f99a81b045219b0e2ea0dab57","https://git.kernel.org/stable/c/8ddf962c76432a10a6cb80042875cbc48a9c056b","https://git.kernel.org/stable/c/416546cd6a54e9b68f2b91bc680b1ee17dcd77a1","https://git.kernel.org/stable/c/2e8bba0360d1379bfa8da47c8f5dadbb10a3fba1","https://git.kernel.org/stable/c/b5dbb41b212c50c095a4dbee3017a84fe94f033b"],"sources":[{"name":"CVE","id":"CVE-2026-98456","modified":"2026-10-30T12:38:14.270Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-98456"}],"assessments":[{"source":"Linux","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7}],"sourceAffected":[],"observedAt":"2026-10-30T14:01:31.476Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T22:40:32.870Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}