{"id":"CVE-2026-98295","state":"PUBLISHED","title":"Bluetooth: coredump: Quiesce dump work on unregister","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: coredump: Quiesce dump work on unregister\n\nhci_devcd_handle_pkt_init() arms dump_timeout and coredump producers\nqueue dump_rx without holding an hdev reference. Unregister leaves both\nworks live, so disconnecting during an active dump lets them access hdev\nafter hci_release_dev() frees it.\n\nShut down coredump processing during unregister. Close the producer gate\nunder dump_q.lock before disabling both works, then free the active buffer\nand queued packets under hci_dev_lock. Serializing the gate with enqueue\nprevents controller-specific workers from adding packets after the final\npurge.","publishedAt":"2026-10-06T08:45:54.141Z","updatedAt":"2026-10-19T09:17:06.302Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"24af375d7d8aa5f698e4dc41317102f44114351a","versionType":"git"},{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"dcaf10ef27f928568c25de3e9fc242e538de5c67","versionType":"git"},{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"82699d1b727ba5980b94f1eb8dc3d346f41b7c67","versionType":"git"},{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"d236517c264e41dc09833c708ef23bccb7a91219","versionType":"git"},{"version":"deb8156ebe5cb63a5988e7f86cc46aa062527c2b","status":"affected","versionType":"git"},{"version":"6.1.188","status":"affected","lessThan":"6.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/bluetooth/coredump.h","net/bluetooth/coredump.c","net/bluetooth/hci_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/bluetooth/coredump.h","net/bluetooth/coredump.c","net/bluetooth/hci_core.c"]}],"references":["https://git.kernel.org/stable/c/24af375d7d8aa5f698e4dc41317102f44114351a","https://git.kernel.org/stable/c/dcaf10ef27f928568c25de3e9fc242e538de5c67","https://git.kernel.org/stable/c/82699d1b727ba5980b94f1eb8dc3d346f41b7c67","https://git.kernel.org/stable/c/d236517c264e41dc09833c708ef23bccb7a91219"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98295.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98295","state":"PUBLISHED","datePublished":"2026-10-06T08:45:54.141Z","dateUpdated":"2026-10-19T09:17:06.302Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.337Z"},"containers":{"cna":{"title":"Bluetooth: coredump: Quiesce dump work on unregister","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: coredump: Quiesce dump work on unregister\n\nhci_devcd_handle_pkt_init() arms dump_timeout and coredump producers\nqueue dump_rx without holding an hdev reference. Unregister leaves both\nworks live, so disconnecting during an active dump lets them access hdev\nafter hci_release_dev() frees it.\n\nShut down coredump processing during unregister. Close the producer gate\nunder dump_q.lock before disabling both works, then free the active buffer\nand queued packets under hci_dev_lock. Serializing the gate with enqueue\nprevents controller-specific workers from adding packets after the final\npurge."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"24af375d7d8aa5f698e4dc41317102f44114351a","versionType":"git"},{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"dcaf10ef27f928568c25de3e9fc242e538de5c67","versionType":"git"},{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"82699d1b727ba5980b94f1eb8dc3d346f41b7c67","versionType":"git"},{"version":"9695ef876fd122cb7bbc04a4a93b8727d2e36bda","status":"affected","lessThan":"d236517c264e41dc09833c708ef23bccb7a91219","versionType":"git"},{"version":"deb8156ebe5cb63a5988e7f86cc46aa062527c2b","status":"affected","versionType":"git"},{"version":"6.1.188","status":"affected","lessThan":"6.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/bluetooth/coredump.h","net/bluetooth/coredump.c","net/bluetooth/hci_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/net/bluetooth/coredump.h","net/bluetooth/coredump.c","net/bluetooth/hci_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/24af375d7d8aa5f698e4dc41317102f44114351a"},{"url":"https://git.kernel.org/stable/c/dcaf10ef27f928568c25de3e9fc242e538de5c67"},{"url":"https://git.kernel.org/stable/c/82699d1b727ba5980b94f1eb8dc3d346f41b7c67"},{"url":"https://git.kernel.org/stable/c/d236517c264e41dc09833c708ef23bccb7a91219"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:17:06.302Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.188"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}