CVE-2024-46844

um: line: always fill *error_out in setup_one_line()

HIGH
7.8
CVSS Score
Published: September 27, 2024 at 12:39 PM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.19.3223.4 ≤ v < 4.19.3223.4 ≤ v < 5.10.2263.4 ≤ v < 5.15.1673.4 ≤ v < 5.4.2843.4 ≤ v < 6.1.1103.4 ≤ v < 6.10.103.4 ≤ v < 6.113.4 ≤ v < 6.6.514.20 ≤ v < 5.4.2845.11 ≤ v < 5.15.1675.16 ≤ v < 6.1.1105.5 ≤ v < 5.10.2266.2 ≤ v < 6.6.516.7 ≤ v < 6.10.103.431efcebb7d7196adcee73027f513d7c0bf572b47
Vendor states this is fixed in 289979d64573f43df1d0e6bc6435de63a0d69cdf (fixed)
Vendor states this is fixed in 3bedb7ce080690d0d6172db790790c1219bcbdd5 (fixed)
Vendor states this is fixed in 43f782c27907f306c664b6614fd6f264ac32cce6 (fixed)
Vendor states this is fixed in 824ac4a5edd3f7494ab1996826c4f47f8ef0f63d (fixed)
Vendor states this is fixed in 96301fdc2d533a196197c055af875fe33d47ef84 (fixed)
Vendor states this is fixed in c8944d449fda9f58c03bd99649b2df09948fc874 (fixed)
Vendor states this is fixed in ec5b47a370177d79ae7773858042c107e21f8ecc (fixed)
Vendor states this is fixed in fc843d3837ebcb1c16d3768ef3eb55e25d5331f2 (fixed)
Vendor states this is fixed in 3.4 (unaffected)
Vendor states this is fixed in 4.19.322 (unaffected)
Vendor states this is fixed in 5.10.226 (unaffected)
Vendor states this is fixed in 5.15.167 (unaffected)
Vendor states this is fixed in 5.4.284 (unaffected)
Vendor states this is fixed in 6.1.110 (unaffected)
Vendor states this is fixed in 6.10.10 (unaffected)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.6.51 (unaffected)

References (10)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/289979d64573f43df1d0e6bc6435de63a0d69cdf
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3bedb7ce080690d0d6172db790790c1219bcbdd5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/43f782c27907f306c664b6614fd6f264ac32cce6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/824ac4a5edd3f7494ab1996826c4f47f8ef0f63d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/96301fdc2d533a196197c055af875fe33d47ef84
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c8944d449fda9f58c03bd99649b2df09948fc874
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ec5b47a370177d79ae7773858042c107e21f8ecc
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fc843d3837ebcb1c16d3768ef3eb55e25d5331f2

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-824

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