Bluetooth: Fix potential use-after-free when clear keys
Priority LOW 35CWE-416Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 19 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix potential use-after-free when clear keys Similar to commit c5d2b6fa26b5 ("Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk"). We can not access k after kfree_rcu() call.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00154 4th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.195, 5.15.132, 6.1.53 +3Red Hat: 9 advisoriesRed Hat: 19 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.7 and later | 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6 | Patch available | CNA |
- Linux VendorLinux Affected 5.7 and later Fixed in 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.7 to before 5.10.195; 5.11 to before 5.15.132; 5.16 to before 6.1.53; 6.2 to before 6.4.16; 6.5 to before 6.5.3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.7 to before 5.10.195; 5.11 to before 5.15.132; 5.16 to before 6.1.53; 6.2 to before 6.4.16; 6.5 to before 6.5.3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.195, 5.15.132, 6.1.53, 6.4.16, 6.5.3, 6.6
Red Hat 9 advisories
- RHSA-2025:22752 Released 2025-12-04 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
- Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.179.1.el8_4, kernel-4.18.0-305.179.1.el8_4, kernel-abi-stablelists-4.18.0-305.179.1.el8_4 +14
- RHSA-2025:22072 Released 2025-11-25 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.120.1.el8_8, kernel-4.18.0-477.120.1.el8_8, kernel-abi-stablelists-4.18.0-477.120.1.el8_8 +14
- Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.120.1.el8_8, kernel-4.18.0-477.120.1.el8_8, kernel-abi-stablelists-4.18.0-477.120.1.el8_8 +14
- RHSA-2025:21136 Released 2025-11-12 · Red Hat rating Moderatekernel-rt security update
- Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-5.14.0-70.153.1.rt21.225.el9_0 +9
- Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-core-5.14.0-70.153.1.rt21.225.el9_0, kernel-rt-debug-5.14.0-70.153.1.rt21.225.el9_0 +7
Show 6 more Red Hat advisories
- RHSA-2025:21128 Released 2025-11-12 · Red Hat rating Moderatekernel-rt security update
- Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-5.14.0-284.146.1.rt14.431.el9_2 +9
- Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-core-5.14.0-284.146.1.rt14.431.el9_2, kernel-rt-debug-5.14.0-284.146.1.rt14.431.el9_2 +11
- RHSA-2025:21091 Released 2025-11-12 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.153.1.el9_0, kernel-debug-devel-matched-5.14.0-70.153.1.el9_0, kernel-devel-5.14.0-70.153.1.el9_0 +5
- Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.153.1.el9_0, kernel-5.14.0-70.153.1.el9_0, kernel-abi-stablelists-5.14.0-70.153.1.el9_0 +14
- RHSA-2025:21084 Released 2025-11-12 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +14
- Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +19
- Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.168.1.el8_6, kernel-4.18.0-372.168.1.el8_6, kernel-abi-stablelists-4.18.0-372.168.1.el8_6 +14
- RHSA-2025:21051 Released 2025-11-12 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.146.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.146.1.el9_2, kernel-64k-devel-5.14.0-284.146.1.el9_2 +10
- Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.146.1.el9_2, kernel-5.14.0-284.146.1.el9_2, kernel-64k-5.14.0-284.146.1.el9_2 +29
- RHSA-2025:19102 Released 2025-10-27 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.81.1.el8_10, kernel-4.18.0-553.81.1.el8_10, kernel-abi-stablelists-4.18.0-553.81.1.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.81.1.el8_10
- RHSA-2025:19103 Released 2025-10-27 · Red Hat rating Moderatekernel-rt security update
- Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.81.1.rt7.422.el8_10, kernel-rt-core-4.18.0-553.81.1.rt7.422.el8_10, kernel-rt-debug-4.18.0-553.81.1.rt7.422.el8_10 +9
- Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.81.1.rt7.422.el8_10, kernel-rt-core-4.18.0-553.81.1.rt7.422.el8_10, kernel-rt-debug-4.18.0-553.81.1.rt7.422.el8_10 +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2025:21091 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2025:21051 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2025:19102 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.4) | Fixed | RHSA-2025:22752 |
| Red Hat Enterprise Linux BaseOS AUS (v.8.6) | Fixed | RHSA-2025:21084 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.6) | Fixed | RHSA-2025:21084 |
| Red Hat Enterprise Linux BaseOS E4S (v.8.8) | Fixed | RHSA-2025:22072 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.0) | Fixed | RHSA-2025:21091 |
| Red Hat Enterprise Linux BaseOS E4S (v.9.2) | Fixed | RHSA-2025:21051 |
| Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) | Fixed | RHSA-2025:22752 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.6) | Fixed | RHSA-2025:21084 |
| Red Hat Enterprise Linux BaseOS TUS (v.8.8) | Fixed | RHSA-2025:22072 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2025:19102 |
| Red Hat Enterprise Linux NFV (v. 8) | Fixed | RHSA-2025:19103 |
| Red Hat Enterprise Linux NFV E4S (v.9.0) | Fixed | RHSA-2025:21136 |
| Red Hat Enterprise Linux RT (v. 8) | Fixed | RHSA-2025:19103 |
| Red Hat Enterprise Linux Real Time E4S (v.9.0) | Fixed | RHSA-2025:21136 |
| Red Hat Enterprise Linux Real Time E4S (v.9.2) | Fixed | RHSA-2025:21128 |
| Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) | Fixed | RHSA-2025:21128 |
Not affected: 2 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2023-53386
- 2026-10-03 Alias added: GHSA-m38w-46xg-v336
References
Patch 6
- https://git.kernel.org/stable/c/e87da6a0ac6e631454e7da53a76aa9fe44aaa5dd
- https://git.kernel.org/stable/c/942d8cefb022f384d5424f8b90c7878f3f93726f
- https://git.kernel.org/stable/c/94617b736c25091b60e514e2e7aeafcbbee6b700
- https://git.kernel.org/stable/c/da19f35868dfbecfff4f81166c054d2656cb1be4
- https://git.kernel.org/stable/c/35cc42f04bc49f0656f6840cb7451b3df6049649
- https://git.kernel.org/stable/c/3673952cf0c6cf81b06c66a0b788abeeb02ff3ae
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Sources
- CVE-2023-53386 · CVE Program
- CVE-2023-53386 · NVD
- FIRST EPSS
- GHSA-m38w-46xg-v336 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-53386 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences