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CVE-2023-52494

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-6795-1
Posted May 29, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6795-1 - Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service. It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2023-47233, CVE-2023-52435, CVE-2023-52491, CVE-2023-52492, CVE-2023-52494, CVE-2023-52498, CVE-2023-52530, CVE-2023-52583, CVE-2023-52587, CVE-2023-52588, CVE-2023-52595, CVE-2023-52597, CVE-2023-52598
SHA-256 | 1263e2b9ac7045e640a955619fc9ec7e9ee0cee6811cce5ca858a631117df48d
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