PT-2026-90066 · Linux · Linux
CVE-2026-80936
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Published
2026-09-11
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Updated
2026-09-11
None
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In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7925: cancel mlo pm work on stop
mt7925 queues mlo pm work with a 5 second delay during multi-link
power-save setup and never cancels it on the stop path. If the device is
torn down inside that window, the work outlives the teardown and its timer
fires afterwards, trying to queue onto the workqueue that is already gone:
workqueue: cannot queue mt7925 mlo pm work [mt7925 common] on wq phy0
WARNING: kernel/workqueue.c:2283 at queue work+0x59/0xa0, CPU#1: swapper/1/0
call timer fn+0x2a/0x140
run timers+0x203/0x330
run timer softirq+0x86/0xf0
mt7921 already has its own stop callback, so add one for mt7925 that
cancels the work before calling mt792x stop(). mt7925 ops backs both the
PCIe and USB drivers, so this covers both.
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Related Identifiers
Affected Products
Linux