Bug 2337116 (CVE-2024-45828)

Summary: CVE-2024-45828 kernel: i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-01-11 13:02:43 UTC 
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.
Comment 1 Avinash Hanwate 2025-01-13 07:10:20 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025011119-CVE-2024-45828-8cbd@gregkh/T