A flaw was found in the Linux kernel's udmabuf device driver. The specific flaw exists within a fault handler. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an array. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-2008
• torvalds/linux@05b252c
• https://bugzilla.redhat.com/show_bug.cgiid=2186862
• https://bugzilla.redhat.com/show_bug.cgi?id=2186862
• https://security.netapp.com/advisory/ntap-20230517-0007
• https://www.zerodayinitiative.com/advisories/ZDI-23-441