CVE-2024-35978

Bluetooth: Fix memory leak in hci_req_sync_complete()

MEDIUM
5.5
CVSS Score
Published: May 20, 2024 at 09:42 AM UTC
Updated: October 15, 2026 at 01:18 AM UTC
2 products affected across 2 vendorsLinux KernelSIMATIC S7-1500 TM MFP

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.1 ≤ v < 4.19.3134.20 ≤ v < 5.4.2755.11 ≤ v < 5.15.1565.16 ≤ v < 6.1.875.5 ≤ v < 5.10.2166.2 ≤ v < 6.6.286.7 ≤ v < 6.8.74.1f60cb30579d3401cab1ed36b42df5c0568ae0ba7
Vendor states this is fixed in 45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810 (fixed)
Vendor states this is fixed in 4beab84fbb50df3be1d8f8a976e6fe882ca65cb2 (fixed)
Vendor states this is fixed in 66fab1e120b39f8f47a94186ddee36006fc02ca8 (fixed)
Vendor states this is fixed in 75193678cce993aa959e7764b6df2f599886dd06 (fixed)
Vendor states this is fixed in 8478394f76c748862ef179a16f651f752bdafaf0 (fixed)
Vendor states this is fixed in 89a32741f4217856066c198a4a7267bcdd1edd67 (fixed)
Vendor states this is fixed in 9ab5e44b9bac946bd49fd63264a08cd1ea494e76 (fixed)
Vendor states this is fixed in e4cb8382fff6706436b66eafd9c0ee857ff0a9f5 (fixed)
Vendor states this is fixed in 4.1 (unaffected)
Vendor states this is fixed in 4.19.313 (unaffected)
Vendor states this is fixed in 5.10.216 (unaffected)
Vendor states this is fixed in 5.15.156 (unaffected)
Vendor states this is fixed in 5.4.275 (unaffected)
Vendor states this is fixed in 6.1.87 (unaffected)
Vendor states this is fixed in 6.6.28 (unaffected)
Vendor states this is fixed in 6.8.7 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

References (11)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/45d355a926ab40f3ae7bc0b0a00cb0e3e8a5a810
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4beab84fbb50df3be1d8f8a976e6fe882ca65cb2
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/66fab1e120b39f8f47a94186ddee36006fc02ca8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/75193678cce993aa959e7764b6df2f599886dd06
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8478394f76c748862ef179a16f651f752bdafaf0
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/89a32741f4217856066c198a4a7267bcdd1edd67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9ab5e44b9bac946bd49fd63264a08cd1ea494e76
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e4cb8382fff6706436b66eafd9c0ee857ff0a9f5

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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