Bluetooth: Fix memory leak in hci_req_sync_complete()
Priority LOW 25CWE-401Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 5 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix memory leak in hci_req_sync_complete() In 'hci_req_sync_complete()', always free the previous sync request state before assigning reference to a new one.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00281 20th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.19.313, 5.4.275, 5.10.216 +5Red Hat: 1 advisoryRed Hat: 5 fixed, 4 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | 4.1 and later | 4.19.313, 5.4.275, 5.10.216, 5.15.156, 6.1.87, 6.6.28, 6.8.7, 6.9 | Patch available | CNA |
- Linux VendorLinux Affected 4.1 and later Fixed in 4.19.313, 5.4.275, 5.10.216, 5.15.156, 6.1.87, 6.6.28, 6.8.7, 6.9 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.1 to before 4.19.313; 4.20 to before 5.4.275; 5.5 to before 5.10.216; 5.11 to before 5.15.156; 5.16 to before 6.1.87; 6.2 to before 6.6.28; 6.7 to before 6.8.7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.1 to before 4.19.313; 4.20 to before 5.4.275; 5.5 to before 5.10.216; 5.11 to before 5.15.156; 5.16 to before 6.1.87; 6.2 to before 6.6.28; 6.7 to before 6.8.7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.313, 5.4.275, 5.10.216, 5.15.156, 6.1.87, 6.6.28, 6.8.7, 6.9
Red Hat 1 advisory
- RHSA-2025:6966 Released 2025-05-13 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.12.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.12.1.el9_6, kernel-64k-devel-5.14.0-570.12.1.el9_6 +12
- Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.12.1.el9_6, kernel-64k-5.14.0-570.12.1.el9_6, kernel-64k-core-5.14.0-570.12.1.el9_6 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.12.1.el9_6, libperf-5.14.0-570.12.1.el9_6
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-64k-5.14.0-570.12.1.el9_6, kernel-rt-64k-core-5.14.0-570.12.1.el9_6 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-core-5.14.0-570.12.1.el9_6, kernel-rt-debug-5.14.0-570.12.1.el9_6 +11
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 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2025:6966 |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-35978
- 2026-10-03 Alias added: GHSA-47cg-x8x3-hfm3
References
Patch 8
- https://git.kernel.org/stable/c/89a32741f4217856066c198a4a7267bcdd1edd67
- https://git.kernel.org/stable/c/4beab84fbb50df3be1d8f8a976e6fe882ca65cb2
- https://git.kernel.org/stable/c/8478394f76c748862ef179a16f651f752bdafaf0
- https://git.kernel.org/stable/c/75193678cce993aa959e7764b6df2f599886dd06
- https://git.kernel.org/stable/c/66fab1e120b39f8f47a94186ddee36006fc02ca8
- https://git.kernel.org/stable/c/9ab5e44b9bac946bd49fd63264a08cd1ea494e76
- https://git.kernel.org/stable/c/e4cb8382fff6706436b66eafd9c0ee857ff0a9f5
- https://git.kernel.org/stable/c/45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-35978 · CVE Program
- CVE-2024-35978 · NVD
- FIRST EPSS
- GHSA-47cg-x8x3-hfm3 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-35978 · Red Hat security data · CC BY 4.0
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