Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

Summary

CVECVE-2026-68391
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:32 UTC
Updated2026-08-10 13:20:32 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hci_conn in hci_sync callbacks also needs to hold refcount to avoid UAF. Take appropriate locks for hci_conn lookups, and take refcount for hci_conn pointers stored in mgmt_pending_cmd so that the pointer stays valid. When accessing conn->state, ensure hdev->lock is held to avoid data race.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 7b445e220db9a2c58be5d09bbbd322abf1b1452a b56f2ecafc08f372bf0529f9c4f3f429cb1702dc git Not specified
CNA Linux Linux affected 7b445e220db9a2c58be5d09bbbd322abf1b1452a f915e74b6f18293d1d69a2a3305ef321ff7c0172 git Not specified
CNA Linux Linux affected 7b445e220db9a2c58be5d09bbbd322abf1b1452a d5b3b484b62bb0f4542e7622789d28871626cdf0 git Not specified
CNA Linux Linux affected 7b445e220db9a2c58be5d09bbbd322abf1b1452a ecdcb55ea1c01dda074406f38058785a69526734 git Not specified
CNA Linux Linux affected 7b445e220db9a2c58be5d09bbbd322abf1b1452a da55f570191d5d72f10c607a7043b947eb05ea46 git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.6.148 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.101 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.42 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.6 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f915e74b6f18293d1d69a2a3305ef321ff7c0172 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b56f2ecafc08f372bf0529f9c4f3f429cb1702dc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ecdcb55ea1c01dda074406f38058785a69526734 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d5b3b484b62bb0f4542e7622789d28871626cdf0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/da55f570191d5d72f10c607a7043b947eb05ea46 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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