CVE-2026-74541
Bluetooth: ISO: clear iso_data always when detaching conn from hcon
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is necessary, otherwise later iso_conn_free() will UAF. Fix clearing of iso_data in iso_sock_disconn() Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on iso_sock_release() followed by hci_abort_conn_sync().
INFO
Published Date :
Aug. 15, 2026, 1:17 p.m.
Last Modified :
Aug. 15, 2026, 1:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-74541
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest version.
- Verify the fix is applied by checking kernel version.
- Restart affected systems if required.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-74541.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74541 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-74541
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-74541 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74541 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'fbdc4bc47268953c80853489f696e02d61f9a2c6', 'lessThan': 'cc1d39946d62bc568551dfb81149724de1e91338', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbdc4bc47268953c80853489f696e02d61f9a2c6', 'lessThan': '7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbdc4bc47268953c80853489f696e02d61f9a2c6', 'lessThan': '63c0f396a18b767eb28e895eb95bbdce6c172c59', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbdc4bc47268953c80853489f696e02d61f9a2c6', 'lessThan': '69a4a7b162b3db6ac337e3094cdee38f24d42ff7', 'versionType': 'git'}, {'status': 'affected', 'version': 'fbdc4bc47268953c80853489f696e02d61f9a2c6', 'lessThan': 'd57e506f6a1e3929611340fae87c1e4823f4d85c', 'versionType': 'git'}, {'status': 'affected', 'version': 'c03a10bd5b6ccb22921e04bcddc987410df7e7a9', 'versionType': 'git'}, {'status': 'affected', 'version': '6.5.12', 'lessThan': '6.6', 'versionType': 'semver'}], 'programFiles': ['net/bluetooth/iso.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.6'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.6', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.151', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.103', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.44', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.8', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc6', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/bluetooth/iso.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: clear iso_data always when detaching conn from hcon When setting conn->hcon = NULL, also conn->hcon->iso_data = NULL is necessary, otherwise later iso_conn_free() will UAF. Fix clearing of iso_data in iso_sock_disconn() Fixes KASAN: slab-use-after-free in iso_conn_hold_unless_zero on iso_sock_release() followed by hci_abort_conn_sync(). Added Reference https://git.kernel.org/stable/c/63c0f396a18b767eb28e895eb95bbdce6c172c59 Added Reference https://git.kernel.org/stable/c/69a4a7b162b3db6ac337e3094cdee38f24d42ff7 Added Reference https://git.kernel.org/stable/c/7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0 Added Reference https://git.kernel.org/stable/c/cc1d39946d62bc568551dfb81149724de1e91338 Added Reference https://git.kernel.org/stable/c/d57e506f6a1e3929611340fae87c1e4823f4d85c