CVE-2026-80654
In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Shutdown and free rx mailbox channel A mbox rx channel is requested using mbox_request_channel_byname() in probe. In remove callback, the rx mailbox channel is cleaned up when the rx_chan is NULL due to incorrect condition check. The mailbox channel is not shutdown and it can receive messages even after the device removal. This leads to use after free. Also the channel resources are not freed. Fix this by checking the rx_chan correctly.
Affected versions
Linux kernel versions
5.6
and later are affected. Fixed in
6.12.97,
6.18.40,
7.1.5,
7.2
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-80654?
CVE-2026-80654 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 5.6 onward and has been patched in 6.12.97, 6.18.40, 7.1.5 and others. CVE-2026-80654 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-2026-80654?
Yes. CVE-2026-80654 has been patched. Fixed versions include 6.12.97, 6.18.40, 7.1.5 and others. If you are running Linux kernel 5.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-80654 actively exploited?
No. CVE-2026-80654 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.