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CVE-2024-0582

Kernel: io_uring: page use-after-free vulnerability via buffer ring mmap

Published: 1/16/2024 Last updated: 11/20/2025 Reserved: 1/16/2024

A memory leak flaw was found in the Linux kernel’s io_uring functionality in how a user registers a buffer ring with IORING_REGISTER_PBUF_RING, mmap() it, and then frees it. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 7.8 High CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (15)

Product Vendor Version
Red Hat Enterprise Linux 6 Red Hat unspecified
Red Hat Enterprise Linux 7 Red Hat < 2.23.3
Red Hat Enterprise Linux 8 Red Hat < 6.2.9200.24768
Red Hat Enterprise Linux 8 Red Hat < publication
Red Hat Enterprise Linux 7 Red Hat QCN6112
Version 1709 for ARM64-based Systems
Red Hat Enterprise Linux 9 Red Hat Version 1803 for 32-bit Systems
Red Hat Enterprise Linux 6 Red Hat <= 2.4.1
4.3
Red Hat Enterprise Linux 9 Red Hat < 6.1.7601.25954
Red Hat Enterprise Linux 7 Red Hat Version 1709 for x64-based Systems
Red Hat Enterprise Linux 8 Red Hat QCN6122
Red Hat Enterprise Linux 9 Red Hat QCN6132
Red Hat Enterprise Linux 7 Red Hat 4.4
Red Hat Enterprise Linux 8 Red Hat 1.0

References (18)

Credits (2)