CVE-2024-45828
i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/19cc5767334bfe980f52421627d0826c0da86721
- https://git.kernel.org/stable/c/6ca2738174e4ee44edb2ab2d86ce74f015a0cc32
- https://git.kernel.org/stable/c/9d745a56aea45e47f4755bc12e6429d6314dbb54
- https://git.kernel.org/stable/c/a6cddf68b3405b272b5a3cad9657be0b02b34bf4
- https://git.kernel.org/stable/c/a6dc4b4fda2e147e557050eaae51ff15edeb680b
References (6)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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