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CVE-2023-4611

Use after free race between mbind() and vma-locked page fault

Published: 8/29/2023 Last updated: 2/27/2025 Reserved: 8/29/2023

A use-after-free flaw was found in mm/mempolicy.c in the memory management subsystem in the Linux Kernel. This issue is caused by a race between mbind() and VMA-locked page fault, and may allow a local attacker to crash the system or lead to a kernel information leak.

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

Metrics

Version Score Severity Vector String
3.1 7 High CVSS:3.1/AV:L/AC:H/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 (8)

Product Vendor Version
Fedora Fedora <= Forms SP5 add-on for AEM 6.5.5.0
Red Hat Enterprise Linux 6 Red Hat All versions < V2.16.0
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 8 Red Hat n/a
Red Hat Enterprise Linux 9 Red Hat All versions < V2.16.0
Red Hat Enterprise Linux 7 Red Hat All versions < V2.16.0
Kernel n/a <= 5.10.*

References (6)