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.

Classification

CVE ID: CVE-2024-45828

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 5.05% (scored less or equal to compared to others)

EPSS Date: 2025-02-09 (when was this score calculated)

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

Timeline