What’s Vulnerable › Vulnerabilities

CVE-2023-52656: io_uring: drop any code related to SCM_RIGHTS

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-14 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring: drop any code related to SCM_RIGHTS This is dead code after we dropped support for passing io_uring fds over SCM_RIGHTS, get rid of it.

Affected products

• Debian Linux: 10.0
• Linux kernel: from 5.1 before 5.4.273; from 5.5 before 5.10.214; from 5.11 before 5.15.153; from 5.16 before 6.1.83; from 6.2 before 6.6.23; from 6.7 before 6.7.11 — fixed in 5.10.214, 5.15.153, 5.4.273, 6.1.83, 6.6.23, 6.7.11

How to fix

Upgrade to a fixed version: Linux kernel 5.10.214, 5.15.153, 5.4.273, 6.1.83. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6e5e6d274956305f1fc0340522b38f5f5be74bdb
• https://git.kernel.org/stable/c/6fc19b3d8a45ff0e5d50ec8184cee1d5eac1a8ba
• https://git.kernel.org/stable/c/88c49d9c896143cdc0f77197c4dcf24140375e89
• https://git.kernel.org/stable/c/a3812a47a32022ca76bf46ddacdd823dc2aabf8b
• https://git.kernel.org/stable/c/a6771f343af90a25f3a14911634562bb5621df02
• https://git.kernel.org/stable/c/cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3
• https://git.kernel.org/stable/c/d909d381c3152393421403be4b6435f17a2378b4
• https://git.kernel.org/stable/c/6e5e6d274956305f1fc0340522b38f5f5be74bdb
• https://git.kernel.org/stable/c/88c49d9c896143cdc0f77197c4dcf24140375e89
• https://git.kernel.org/stable/c/a3812a47a32022ca76bf46ddacdd823dc2aabf8b
• https://git.kernel.org/stable/c/a6771f343af90a25f3a14911634562bb5621df02
• https://git.kernel.org/stable/c/cfb24022bb2c31f1f555dc6bc3cc5e2547446fb3

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