i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request Bus cleanup path in DMA mode may trigger a RING_OP_STAT interrupt when the ring is being stopped. Depending on timing between ring stop request completion, interrupt handler removal and code execution this may lead to a NULL pointer dereference in hci_dma_irq_handler() if it gets to run after the io_data pointer is set to NULL in hci_dma_cleanup(). Prevent this my masking the ring interrupts before ring stop request.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/a6cddf68b3405b272b5a3cad9657be0b02b34bf4
- https://git.kernel.org/stable/c/9d745a56aea45e47f4755bc12e6429d6314dbb54
- https://git.kernel.org/stable/c/a6dc4b4fda2e147e557050eaae51ff15edeb680b
- https://git.kernel.org/stable/c/19cc5767334bfe980f52421627d0826c0da86721
- https://git.kernel.org/stable/c/6ca2738174e4ee44edb2ab2d86ce74f015a0cc32
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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