CVE-2024-56369

drm/modes: Avoid divide by zero harder in drm_mode_vrefresh()

MEDIUM
5.5
CVSS Score
Published: January 11, 2025 at 12:35 PM UTC
Updated: June 17, 2026 at 08:12 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/modes: Avoid divide by zero harder in drm_mode_vrefresh() drm_mode_vrefresh() is trying to avoid divide by zero by checking whether htotal or vtotal are zero. But we may still end up with a div-by-zero of vtotal*htotal*...

Affected

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

v < 5.15.1764.17 ≤ v < 5.15.1764.17 ≤ v < 6.1.1224.17 ≤ v < 6.12.74.17 ≤ v < 6.134.17 ≤ v < 6.6.685.16 ≤ v < 6.1.1226.2 ≤ v < 6.6.686.7 ≤ v < 6.12.72f0e9d804935970a4ce0f58dd046b41881bfd8f36.13 rc16.13 rc26.13 rc3
Vendor states this is fixed in 47c8b6cf1d08f0ad40d7ea7b025442e51b35ee1f (fixed)
Vendor states this is fixed in 69fbb01e891701e6d04db1ddb5ad49e42c4dd963 (fixed)
Vendor states this is fixed in 9398332f23fab10c5ec57c168b44e72997d6318e (fixed)
Vendor states this is fixed in b39de5a71bac5641d0fda33d1cf5682d82cf1ae5 (fixed)
Vendor states this is fixed in e7c7b48a0fc5ed83baae400a1b15e33978c25d7f (fixed)
Vendor states this is fixed in 4.17 (unaffected)
Vendor states this is fixed in 5.15.176 (unaffected)
Vendor states this is fixed in 6.1.122 (unaffected)
Vendor states this is fixed in 6.12.7 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.6.68 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/47c8b6cf1d08f0ad40d7ea7b025442e51b35ee1f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/69fbb01e891701e6d04db1ddb5ad49e42c4dd963
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9398332f23fab10c5ec57c168b44e72997d6318e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b39de5a71bac5641d0fda33d1cf5682d82cf1ae5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e7c7b48a0fc5ed83baae400a1b15e33978c25d7f
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-369

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