CVE-2023-52494: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Add alignment check for event ring read pointer Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption. So add a alignment check for event ring read pointer.

Affected products

• Linux Linux Kernel: from 5.13, before 5.15.149 (fixed in 5.15.149); from 5.16, before 6.1.76 (fixed in 6.1.76); from 6.2, before 6.6.15 (fixed in 6.6.15); from 6.7, before 6.7.3 (fixed in 6.7.3)

Published 2024-03-11. Last modified 2026-07-24.