CVE-2023-52494
Dashboard / Vulnerabilities / CVE-2023-52494
CVE-2023-52494
Summary: bus: mhi: host: Add alignment check for event ring read pointer
Details: 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.
References: https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551, https://git.kernel.org/stable/c/76ed0c6f6418cec6efe6f65a0b91f84be80b72eb, https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08, https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010, https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b, https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52494.json, https://nvd.nist.gov/vuln/detail/CVE-2023-52494, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
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Affected ranges
Type: GIT
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