CVE-2026-53098
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.
Affected versions
Linux kernel versions
6.2
and later are affected. Fixed in
6.6.141,
6.12.91,
6.18.33,
7.0.10,
7.1
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-53098?
CVE-2026-53098 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.2 onward and has been patched in 6.6.141, 6.12.91, 6.18.33 and others. CVE-2026-53098 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-53098?
Yes — CVE-2026-53098 has been patched. Fixed versions include 6.6.141, 6.12.91, 6.18.33 and others. If you are running Linux kernel 6.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-53098 actively exploited?
No — CVE-2026-53098 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.