CVE-2024-45828: i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request
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 RINGOPSTAT 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 hcidmairqhandler() if it gets to run after the iodata pointer is set to NULL in hcidmacleanup().
Prevent this my masking the ring interrupts before ring stop request.
Other sources
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— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.22-1Fixed in 6.12.25-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1 - Configuration
Mask the ring interrupts before issuing the ring stop request.
Linux kernel i3c MIPI I3C HCI DMA ring ring interrupts = masked
Event History
Frequently Asked Questions
What is the severity of CVE-2024-45828?
CVE-2024-45828 has a severity rating that categorizes it based on the potential impact and exploitability.
How do I fix CVE-2024-45828?
To fix CVE-2024-45828, update your Linux kernel to the latest stable version that addresses this vulnerability.
Which versions of Linux Kernel are affected by CVE-2024-45828?
CVE-2024-45828 affects Linux Kernel versions from 5.0 up to 6.12.5.
What impact does CVE-2024-45828 have on systems?
CVE-2024-45828 can affect the integrity and performance of the device by causing erroneous DMA behavior during ring operations.
Is there a workaround for CVE-2024-45828?
Currently, the recommended action is to apply the available updates from your Linux distribution to mitigate CVE-2024-45828.