CVE-2026-64406
- Source
- https://cve.org/CVERecord?id=CVE-2026-64406
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64406.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-64406
- Downstream
AZL (1)
BELL (1)
DEBIAN (1)
ECHO (1)
OESA (1)
openSUSE (2)
SUSE (10)
- Related
- Published
- 2026-07-25T08:50:47Z
- Modified
- 2026-10-17T02:30:33Z
- Severity
-
- 8.0 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Bluetooth: fix UAF in bt_accept_dequeue()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: fix UAF in bt_accept_dequeue()
bt_accept_get() takes a temporary reference before dropping the accept queue lock. bt_accept_dequeue() currently drops that reference before bt_accept_unlink(), leaving only the queue reference.
bt_accept_unlink() drops the queue reference. The subsequent sock_hold() therefore accesses freed memory if it was the final reference, as observed by KASAN during listening L2CAP socket cleanup.
Retain the temporary queue-walk reference through unlink and hand it to the caller on success. Drop it explicitly on the closed and not-yet-connected paths.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64406.json" }- References
-
- https://git.kernel.org/stable/c/0a98ff4e7b867f72fbb4e1237d81e9fa02ded0a0
- https://git.kernel.org/stable/c/26168db1ce5a9766cde021b18e590a101c056614
- https://git.kernel.org/stable/c/4bd0b274054f2679f28b70222b607bb0afc3ab9a
- https://git.kernel.org/stable/c/50c662bdcd51b03033a0abed6716bfd377ba1049
- https://git.kernel.org/stable/c/6303ed4bbe0095f4cc195225479bf506e010d1db
- https://git.kernel.org/stable/c/96ad400d5132eb333f28f6f1e2d58f0728ca9547
- https://git.kernel.org/stable/c/c0577c55219be42b6ea2ea8db11e85bfab6f4e8d
- https://git.kernel.org/stable/c/c66a95e60b65d876a927123b0ed36bd6177d9ca6
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64406.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64406
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduced751de6ec671fe75ad9cf65a0638d2a06b6a5984dFixedc0577c55219be42b6ea2ea8db11e85bfab6f4e8d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced407217734835d21d4e0105ebf347860dc1806f88Fixed96ad400d5132eb333f28f6f1e2d58f0728ca9547
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7eebd4c2c86f573af87ff165d08a83432eb0b919Fixed0a98ff4e7b867f72fbb4e1237d81e9fa02ded0a0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5d86d2f1b4d9a508c441d3e45277ae1a73cfed57Fixedc66a95e60b65d876a927123b0ed36bd6177d9ca6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced87c543e2f78d0871f271df92dab98901bbd5b6f5Fixed6303ed4bbe0095f4cc195225479bf506e010d1db
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedadded1213395071470a900cc845a042fb51882a6Fixed26168db1ce5a9766cde021b18e590a101c056614
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedab1513597c6cf17cd1ad2a21e3b045421b48e022Fixed50c662bdcd51b03033a0abed6716bfd377ba1049Fixed4bd0b274054f2679f28b70222b607bb0afc3ab9a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.10.259Fixed5.10.261
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.15.210Fixed5.15.212
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.1.175Fixed6.1.178
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.142Fixed6.6.145
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.12.92Fixed6.12.96
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.18.34Fixed6.18.39
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7.0.11Fixed7.1
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda5ca86a6097a8b030ca3226cd300b17ed330f966
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed5.10.261
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.212
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.178
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.145
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.96
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.39
- Type
- ECOSYSTEM
- Events
-
Introduced6.19.0Fixed7.1.4