A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-34072 A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-04-23T16:21:25.896Z

Reserved: 2023-05-09T00:00:00.000Z

Link: CVE-2023-2598

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-06-01T01:15:17.867

Modified: 2025-04-23T17:16:29.683

Link: CVE-2023-2598

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-05-03T06:30:00Z

Links: CVE-2023-2598 - Bugzilla

cve-icon OpenCVE Enrichment

No data.