CVE-2023-52654
io_uring/af_unix: disable sending io_uring over sockets
MEDIUM 4.7EPSS 0.9%
In the Linux kernel, the following vulnerability has been resolved:io_uring/af_unix: disable sending io_uring over socketsFile reference cycles have caused lots of problems for io_uringin the past, and it still doesn't work exactly right and races withunix_stream_read_generic(). The safest fix would be to completelydisallow sending io_uring files via sockets via SCM_RIGHT, so thereare no possible cycles invloving registered files and thus renderingSCM accounting on the io_uring side unnecessary.
- Affected
- Linux
- CVSS v3.1 NVD
- 4.7 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v3.1 CNA
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.89% chance of exploitation in the next 30 days, 59th percentile
- Published
- 2024-05-09
- Updated
- 2026-08-05
Proof-of-concept exploits (1)
- FoxyProxys/CVE-2023-526540★ · 2024-05-09
Security advisories
- https://git.kernel.org/stable/c/18824f592aad4124d79751bbc1500ea86ac3ff29
- https://git.kernel.org/stable/c/3fe1ea5f921bf5b71cbfdc4469fb96c05936610e
- https://git.kernel.org/stable/c/5a33d385eb36991a91e3dddb189d8679e2aac2be
- https://git.kernel.org/stable/c/705318a99a138c29a512a72c3e0043b3cd7f55f4
- https://git.kernel.org/stable/c/bcedd497b3b4a0be56f3adf7c7542720eced0792
- https://git.kernel.org/stable/c/f2f57f51b53be153a522300454ddb3887722fb2c