Vulnerability Description
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.
References
- https://git.kernel.org/stable/c/a83e77d1e52c01c50096e6e97c57d34e0590d628
- https://git.kernel.org/stable/c/b0f748c563921a7918c78e6a599cefd54de7d688
- https://git.kernel.org/stable/c/b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5
- https://git.kernel.org/stable/c/fdee7c66c0d7b6869c36b9f9a915abf29ab5b550
FAQ
What is CVE-2026-80654?
CVE-2026-80654 is a documented vulnerability. 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 ...
How severe is CVE-2026-80654?
CVSS scoring is not yet available for CVE-2026-80654. Check NVD for updates.
Is there a patch for CVE-2026-80654?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.