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Review reviewHigh

CVE-2026-53098

Linux Linux, linux kernel

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_cor...

CVSS
7.8
EPSS
0.13%
2.60% percentile
CISA KEV
Not listed
Published
2026.06.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

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_cor...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 6d5202409467d621b6d1dfd7fc7dadb997fe66d2, >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < e6856af8a22a8e2cd18241a465ed00c2301b3a5e, >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 6b7cbb13c838cf2a5f2e7be0e96fe15250087939, >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 21ce6d867867645fff0ef657be18f61d9f39dcd8, >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 1146d0946b5358fad24812bd39d68f31cd40cc34, >= 6.2, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10
Fixed versions
6.6.141, 6.12.91, 6.18.33, 7.0.10

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416