CVE-2026-53098None▾ SunlitIn 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_unreg…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 14.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
0.1% → 0.2%
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.
Linux >= 4bf3f4755611e3ae4cca58469e3c1d73be9c8093 < 55159f1fa30bef03e01af469823c1de103a4a884Linux >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 6d5202409467d621b6d1dfd7fc7dadb997fe66d2Linux >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < e6856af8a22a8e2cd18241a465ed00c2301b3a5eLinux >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 6b7cbb13c838cf2a5f2e7be0e96fe15250087939Linux >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 21ce6d867867645fff0ef657be18f61d9f39dcd8Linux >= 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 < 1146d0946b5358fad24812bd39d68f31cd40cc34Linux 6.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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