What’s Vulnerable › Vulnerabilities

CVE-2024-45828: i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-11 · updated 2026-06-17
• Weakness: CWE-476

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 products

• Linux kernel: from 5.0 before 5.15.174; from 5.16 before 6.1.120; from 6.2 before 6.6.66; from 6.7 before 6.12.5 — fixed in 5.15.174, 6.1.120, 6.12.5, 6.6.66

How to fix

Upgrade to a fixed version: Linux kernel 5.15.174, 6.1.120, 6.12.5, 6.6.66. Check the vendor advisory for mitigations.

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
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Get alerted when CVE-2024-45828 or the next vulnerability affects your stack