What’s Vulnerable › Vulnerabilities

CVE-2024-46844: um: line: always fill *error_out in setup_one_line()

• Severity: high (CVSS 7.8 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: 2024-09-27 · updated 2026-08-04
• Weakness: CWE-824

Description

In the Linux kernel, the following vulnerability has been resolved: um: line: always fill *error_out in setup_one_line() The pointer isn't initialized by callers, but I have encountered cases where it's still printed; initialize it in all possible cases in setup_one_line().

Affected products

• Linux kernel: before 4.19.322; from 4.20 before 5.4.284; from 5.5 before 5.10.226; from 5.11 before 5.15.167; from 5.16 before 6.1.110; from 6.2 before 6.6.51 — fixed in 4.19.322, 5.10.226, 5.15.167, 5.4.284, 6.1.110, 6.10.10

How to fix

Upgrade to a fixed version: Linux kernel 4.19.322, 5.10.226, 5.15.167, 5.4.284. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/289979d64573f43df1d0e6bc6435de63a0d69cdf
• https://git.kernel.org/stable/c/3bedb7ce080690d0d6172db790790c1219bcbdd5
• https://git.kernel.org/stable/c/43f782c27907f306c664b6614fd6f264ac32cce6
• https://git.kernel.org/stable/c/824ac4a5edd3f7494ab1996826c4f47f8ef0f63d
• https://git.kernel.org/stable/c/96301fdc2d533a196197c055af875fe33d47ef84
• https://git.kernel.org/stable/c/c8944d449fda9f58c03bd99649b2df09948fc874
• https://git.kernel.org/stable/c/ec5b47a370177d79ae7773858042c107e21f8ecc
• https://git.kernel.org/stable/c/fc843d3837ebcb1c16d3768ef3eb55e25d5331f2
• https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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