Bluetooth: coredump: Quiesce dump work on unregister

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98295
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-06 09:18:20 UTC
Updated2026-10-06 09:18:20 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: coredump: Quiesce dump work on unregister hci_devcd_handle_pkt_init() arms dump_timeout and coredump producers queue dump_rx without holding an hdev reference. Unregister leaves both works live, so disconnecting during an active dump lets them access hdev after hci_release_dev() frees it. Shut down coredump processing during unregister. Close the producer gate under dump_q.lock before disabling both works, then free the active buffer and queued packets under hci_dev_lock. Serializing the gate with enqueue prevents controller-specific workers from adding packets after the final purge.

Risk And Classification

EPSS: 0.001750000 probability, percentile 0.063840000 (date 2026-10-06)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9695ef876fd122cb7bbc04a4a93b8727d2e36bda 24af375d7d8aa5f698e4dc41317102f44114351a git Not specified
CNA Linux Linux affected 9695ef876fd122cb7bbc04a4a93b8727d2e36bda dcaf10ef27f928568c25de3e9fc242e538de5c67 git Not specified
CNA Linux Linux affected 9695ef876fd122cb7bbc04a4a93b8727d2e36bda 82699d1b727ba5980b94f1eb8dc3d346f41b7c67 git Not specified
CNA Linux Linux affected 9695ef876fd122cb7bbc04a4a93b8727d2e36bda d236517c264e41dc09833c708ef23bccb7a91219 git Not specified
CNA Linux Linux affected deb8156ebe5cb63a5988e7f86cc46aa062527c2b git Not specified
CNA Linux Linux affected 6.1.188 6.2 semver Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.54 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.8 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/dcaf10ef27f928568c25de3e9fc242e538de5c67 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/82699d1b727ba5980b94f1eb8dc3d346f41b7c67 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d236517c264e41dc09833c708ef23bccb7a91219 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/24af375d7d8aa5f698e4dc41317102f44114351a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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