CVE-2026-64011
nfc: llcp: Fix use-after-free in llcp_sock_release()
Description
In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix use-after-free in llcp_sock_release() llcp_sock_release() unconditionally unlinks the socket from the local sockets list. However, if the socket is still in connecting state, it is on the connecting list. Fix this by checking the socket state and unlinking from the correct list.
INFO
Published Date :
July 19, 2026, 4:17 p.m.
Last Modified :
July 30, 2026, 2:59 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Check socket state before unlinking.
- Unlink from the correct list.
- Apply the kernel patch.
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-2026-64011.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64011 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-2026-64011
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-2026-64011 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64011 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.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 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': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': '89ba026747019ee643d29407435ddc118e6ca908', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': 'fb29f6bbe433f3decad227588809636c25f2a287', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': '2dfdaaf7d933b676124aadec6698825e95f94fe9', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': 'e00f50f8697724a6f1d2d35744c1332c9912dac5', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': 'cdc17e09a636c7f936f771902535a7515a7608fc', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': '912ebc49d4406a17fe73e5671d674fbc2f6b2634', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': 'bc421d0826dedbba37580a25405eafb599e76d42', 'versionType': 'git'}, {'status': 'affected', 'version': 'b4011239a08e7e6c2c6e970dfa9e8ecb73139261', 'lessThan': 'f4268b466190dae95a7585f69b4f1f8ad097632c', 'versionType': 'git'}, {'status': 'affected', 'version': 'da989ee1c7702050741a551df6866cc1588f277b', 'versionType': 'git'}, {'status': 'affected', 'version': '3.10.10', 'lessThan': '3.11', 'versionType': 'semver'}], 'programFiles': ['net/nfc/llcp_sock.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.259', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.210', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.176', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.143', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.93', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.35', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.12', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['net/nfc/llcp_sock.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix use-after-free in llcp_sock_release() llcp_sock_release() unconditionally unlinks the socket from the local sockets list. However, if the socket is still in connecting state, it is on the connecting list. Fix this by checking the socket state and unlinking from the correct list. Added Reference https://git.kernel.org/stable/c/2dfdaaf7d933b676124aadec6698825e95f94fe9 Added Reference https://git.kernel.org/stable/c/89ba026747019ee643d29407435ddc118e6ca908 Added Reference https://git.kernel.org/stable/c/912ebc49d4406a17fe73e5671d674fbc2f6b2634 Added Reference https://git.kernel.org/stable/c/bc421d0826dedbba37580a25405eafb599e76d42 Added Reference https://git.kernel.org/stable/c/cdc17e09a636c7f936f771902535a7515a7608fc Added Reference https://git.kernel.org/stable/c/e00f50f8697724a6f1d2d35744c1332c9912dac5 Added Reference https://git.kernel.org/stable/c/f4268b466190dae95a7585f69b4f1f8ad097632c Added Reference https://git.kernel.org/stable/c/fb29f6bbe433f3decad227588809636c25f2a287