CVE-2026-53100
wifi: mt76: fix deadlock in remain-on-channel
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix deadlock in remain-on-channel mt76_remain_on_channel() and mt76_roc_complete() call mt76_set_channel() while already holding dev->mutex. Since mt76_set_channel() also acquires dev->mutex, this results in a deadlock. Use __mt76_set_channel() instead of mt76_set_channel(). Add cancel_delayed_work_sync() for mac_work before acquiring the mutex in mt76_remain_on_channel() to prevent a secondary deadlock with the mac_work workqueue.
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 21, 2026, 6:21 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 | MEDIUM | [email protected] |
Solution
- Use __mt76_set_channel() instead of mt76_set_channel().
- Cancel delayed work before acquiring mutex in remain-on-channel.
- Update the Linux kernel to the latest patched version.
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-2026-53100.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53100 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-2026-53100
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).
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The following list is the news that have been mention
CVE-2026-53100 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53100 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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Initial Analysis by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-667 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.14 up to (excluding) 6.18.33 Added Reference Type kernel.org: https://git.kernel.org/stable/c/5fc8c5d45e44575dda9fcabdc2aac4ad97baf0cd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6939b97ddad3cf3dfbb3b5a0a12ef79cb886747e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7a89c245d203aa0ed5ff2d68ac05b48b2ef9fa3f Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 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': 'a8f424c1287cc79a06c21816658feea87dfcb83f', 'lessThan': '5fc8c5d45e44575dda9fcabdc2aac4ad97baf0cd', 'versionType': 'git'}, {'status': 'affected', 'version': 'a8f424c1287cc79a06c21816658feea87dfcb83f', 'lessThan': '7a89c245d203aa0ed5ff2d68ac05b48b2ef9fa3f', 'versionType': 'git'}, {'status': 'affected', 'version': 'a8f424c1287cc79a06c21816658feea87dfcb83f', 'lessThan': '6939b97ddad3cf3dfbb3b5a0a12ef79cb886747e', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/mediatek/mt76/channel.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.14'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.14', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.18.33', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.10', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/wireless/mediatek/mt76/channel.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix deadlock in remain-on-channel mt76_remain_on_channel() and mt76_roc_complete() call mt76_set_channel() while already holding dev->mutex. Since mt76_set_channel() also acquires dev->mutex, this results in a deadlock. Use __mt76_set_channel() instead of mt76_set_channel(). Add cancel_delayed_work_sync() for mac_work before acquiring the mutex in mt76_remain_on_channel() to prevent a secondary deadlock with the mac_work workqueue. Added Reference https://git.kernel.org/stable/c/5fc8c5d45e44575dda9fcabdc2aac4ad97baf0cd Added Reference https://git.kernel.org/stable/c/6939b97ddad3cf3dfbb3b5a0a12ef79cb886747e Added Reference https://git.kernel.org/stable/c/7a89c245d203aa0ed5ff2d68ac05b48b2ef9fa3f