Is there a patch available for EUVD-2026-93174?

Yes, a patch is available for EUVD-2026-93174. Update the affected software to the latest version immediately.

Linux EUVD-2026-93174

| CVE-2026-98246

2026-10-06 Linux

GHSA-4jxq-xw37-v6h5

Information Disclosure Linux

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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: Serialize local codec list cleanup

hci_dev_close_sync() clears hdev->local_codecs after releasing hdev->lock. Codec list additions and both traversals in sco_sock_getsockopt() use that lock, but the close path does not. A close and BT_CODEC query can therefore interleave as follows:

hci_dev_close_sync() sco_sock_getsockopt() hci_dev_lock() fetch codec entry hci_codec_list_clear() kfree(entry) read entry->id

The reader then accesses an entry which the close path has freed. KASAN

BUG: KASAN: slab-use-after-free in sco_sock_getsockopt+0xfa0/0xfe0 Read of size 1 at addr ffff8881001c3450 Call Trace: sco_sock_getsockopt+0xfa0/0xfe0 do_sock_getsockopt+0x537/0x7b0 __sys_getsockopt+0xf2/0x170 Allocated by task 92: hci_codec_list_add.isra.0+0x2c/0x440 hci_read_codec_capabilities+0x224/0x590 hci_read_supported_codecs+0x2c2/0x640 Freed by task 92: kfree+0x131/0x3c0 hci_codec_list_clear+0xd8/0x160 hci_dev_close_sync+0x92a/0xfa0

Take hdev->lock around the clear operation at its existing point in the close path. This makes the clear wait for active readers and prevents a new traversal until the list is empty without changing teardown ordering.

Affected VersionsENISA

Linux 6.5.7 <6.6

Linux patch: 6.6.158

Linux patch: 6.18.54

Linux b938790e70540bf4f2e653dcd74b232494d06c8f <4dc1ae5ff75b17e17ec4b74b11cc4b0099e71e00

Linux b938790e70540bf4f2e653dcd74b232494d06c8f <9a10987a2f160a44a638c9a35994ca6e3089696e

Linux patch: 6.12.112

Linux eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1

Linux patch: 6.1.189

Linux b938790e70540bf4f2e653dcd74b232494d06c8f <1276c2fafd18499769a28f96f45c5a76d6fc990e

Linux 6.6

Linux patch: 7.3-rc4

Linux b938790e70540bf4f2e653dcd74b232494d06c8f <1ee0c5429dc4a92879bda2554b1bfd4abc6c587c

Linux patch: 0

Linux b938790e70540bf4f2e653dcd74b232494d06c8f <560ed4373c06a58123ecdf9ad5ecaddc87a73382

Linux 626535077ba9dc110787540d1fe24881094c15a1 <9f407d52c0d881430d689836d3e7d32aa36f98b5

Linux patch: 7.2.8

Linux 6.1.57 <6.1.189

Affected Packages

euvd linux fix: 6.1.189, 6.6

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 06, 2026 - 10:02 EUVD

CVE Published

Oct 06, 2026 - 08:45 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 93% exploitable

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.