CVE-2026-53098
wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work()
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work() When the mt7915 pci chip is detaching, the mt7915_crash_data is released in mt7915_coredump_unregister(). However, the work item dump_work may still be running or pending, leading to UAF bugs when the already freed crash_data is dereferenced again in mt7915_mac_dump_work(). The race condition can occur as follows: CPU 0 (removal path) | CPU 1 (workqueue) mt7915_pci_remove() | mt7915_sys_recovery_set() mt7915_unregister_device() | mt7915_reset() mt7915_coredump_unregister() | queue_work() vfree(dev->coredump.crash_data) | mt7915_mac_dump_work() | crash_data-> // UAF Fix this by ensuring dump_work is properly canceled before the crash_data is deallocated. Add cancel_work_sync() in mt7915_unregister_device() to synchronize with any pending or executing dump work.
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 | HIGH | [email protected] |
Solution
- Cancel pending work items before deallocating memory.
- Synchronize with pending work using cancel_work_sync.
- Apply the patch to the Linux kernel.
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-2026-53098.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53098 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-2026-53098
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-2026-53098 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53098 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.
-
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:H/I:H/A:H Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.141 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.91 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 Added Reference Type kernel.org: https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e 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': '4dbcb9125cc3e10a6d879c10e4f5816d05a87c49', 'lessThan': '6d5202409467d621b6d1dfd7fc7dadb997fe66d2', 'versionType': 'git'}, {'status': 'affected', 'version': '4dbcb9125cc3e10a6d879c10e4f5816d05a87c49', 'lessThan': 'e6856af8a22a8e2cd18241a465ed00c2301b3a5e', 'versionType': 'git'}, {'status': 'affected', 'version': '4dbcb9125cc3e10a6d879c10e4f5816d05a87c49', 'lessThan': '6b7cbb13c838cf2a5f2e7be0e96fe15250087939', 'versionType': 'git'}, {'status': 'affected', 'version': '4dbcb9125cc3e10a6d879c10e4f5816d05a87c49', 'lessThan': '21ce6d867867645fff0ef657be18f61d9f39dcd8', 'versionType': 'git'}, {'status': 'affected', 'version': '4dbcb9125cc3e10a6d879c10e4f5816d05a87c49', 'lessThan': '1146d0946b5358fad24812bd39d68f31cd40cc34', 'versionType': 'git'}], 'programFiles': ['drivers/net/wireless/mediatek/mt76/mt7915/init.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.2'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.2', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.141', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.91', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'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/mt7915/init.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work() When the mt7915 pci chip is detaching, the mt7915_crash_data is released in mt7915_coredump_unregister(). However, the work item dump_work may still be running or pending, leading to UAF bugs when the already freed crash_data is dereferenced again in mt7915_mac_dump_work(). The race condition can occur as follows: CPU 0 (removal path) | CPU 1 (workqueue) mt7915_pci_remove() | mt7915_sys_recovery_set() mt7915_unregister_device() | mt7915_reset() mt7915_coredump_unregister() | queue_work() vfree(dev->coredump.crash_data) | mt7915_mac_dump_work() | crash_data-> // UAF Fix this by ensuring dump_work is properly canceled before the crash_data is deallocated. Add cancel_work_sync() in mt7915_unregister_device() to synchronize with any pending or executing dump work. Added Reference https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34 Added Reference https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8 Added Reference https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939 Added Reference https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2 Added Reference https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e