CVE-2026-68391

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Source
https://cve.org/CVERecord?id=CVE-2026-68391
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68391.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-68391
Downstream
Published
2026-08-10T12:04:10Z
Modified
2026-08-18T03:31:06Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds
Details

In 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68391.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7b445e220db9a2c58be5d09bbbd322abf1b1452a
Fixed
b56f2ecafc08f372bf0529f9c4f3f429cb1702dc
Fixed
f915e74b6f18293d1d69a2a3305ef321ff7c0172
Fixed
d5b3b484b62bb0f4542e7622789d28871626cdf0
Fixed
ecdcb55ea1c01dda074406f38058785a69526734
Fixed
da55f570191d5d72f10c607a7043b947eb05ea46

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68391.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.0.0
Fixed
6.6.148
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.101
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.42
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-68391.json"