CVEvulnerability

CVE-2023-52654

4.7 MEDIUM Published 2024-05-14 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2024-05-14
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/af_unix: disable sending io_uring over sockets File reference cycles have caused lots of problems for io_uring in the past, and it still doesn't work exactly right and races with unix_stream_read_generic(). The safest fix would be to completely disallow sending io_uring files via sockets via SCM_RIGHT, so there are no possible cycles invloving registered files and thus rendering SCM accounting on the io_uring side unnecessary.

Affected configurations

• linux linux kernel (>= 5.4.220 < 5.4.264) • linux linux kernel (>= 5.10.150 < 5.10.204) • linux linux kernel (>= 5.15.75 < 5.15.143) • linux linux kernel (>= 5.19.17 < 5.20) • linux linux kernel (>= 6.0.3 < 6.1.68) • linux linux kernel (>= 6.2 < 6.6.7) • linux linux kernel 6.7

References