CVE-2024-56778

drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check

MEDIUM
5.5
CVSS Score
Published: January 8, 2025 at 05:49 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 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check The return value of drm_atomic_get_crtc_state() needs to be checked. To avoid use of error pointer 'crtc_state' in case of the failure.

Affected

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

4.6 ≤ v < 5.15.1744.6 ≤ v < 6.1.1204.6 ≤ v < 6.12.44.6 ≤ v < 6.134.6 ≤ v < 6.6.645.16 ≤ v < 6.1.1206.2 ≤ v < 6.6.646.7 ≤ v < 6.12.44.6dd86dc2f9ae1102f46115be1f1422265c15540f1
Vendor states this is fixed in 31c857e7496d34e5a32a6f75bc024d0b06fd646a (fixed)
Vendor states this is fixed in 6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f (fixed)
Vendor states this is fixed in 82a5312f874fb18f045d9658e9bd290e3b0621c0 (fixed)
Vendor states this is fixed in 837eb99ad3340c7a9febf454f41c8e3edb68ac1e (fixed)
Vendor states this is fixed in c1ab40a1fdfee732c7e6ff2fb8253760293e47e8 (fixed)
Vendor states this is fixed in 4.6 (unaffected)
Vendor states this is fixed in 5.15.174 (unaffected)
Vendor states this is fixed in 6.1.120 (unaffected)
Vendor states this is fixed in 6.12.4 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.6.64 (unaffected)

References (6)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/31c857e7496d34e5a32a6f75bc024d0b06fd646a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/82a5312f874fb18f045d9658e9bd290e3b0621c0
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/837eb99ad3340c7a9febf454f41c8e3edb68ac1e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c1ab40a1fdfee732c7e6ff2fb8253760293e47e8
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-754

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