drm/amd/display: Check stream before comparing them
[WHAT & HOW]
amdgpu_dm can pass a null stream to dc_is_stream_unchanged. It is
necessary to check for null before dereferencing them.
This fixes 1 FORWARD_NULL issue reported by Coverity.
Metrics
Affected Vendors & Products
| Source | ID | Title | 
|---|---|---|
  Debian DLA | 
                DLA-4008-1 | linux-6.1 security update | 
  Debian DLA | 
                DLA-4075-1 | linux security update | 
  Ubuntu USN | 
                USN-7166-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7166-2 | Linux kernel (AWS) vulnerabilities | 
  Ubuntu USN | 
                USN-7166-3 | Linux kernel (HWE) vulnerabilities | 
  Ubuntu USN | 
                USN-7170-1 | Linux kernel (OEM) vulnerabilities | 
  Ubuntu USN | 
                USN-7166-4 | Linux kernel (Xilinx ZynqMP) vulnerabilities | 
  Ubuntu USN | 
                USN-7186-1 | Linux kernel (Intel IoTG) vulnerabilities | 
  Ubuntu USN | 
                USN-7186-2 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7194-1 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7276-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7277-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7293-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7294-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7294-2 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7294-3 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7294-4 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7295-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7301-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7303-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7303-2 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7303-3 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7304-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7311-1 | Linux kernel vulnerabilities | 
  Ubuntu USN | 
                USN-7384-1 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7384-2 | Linux kernel (Azure) vulnerabilities | 
  Ubuntu USN | 
                USN-7385-1 | Linux kernel (IBM) vulnerabilities | 
  Ubuntu USN | 
                USN-7386-1 | Linux kernel (OEM) vulnerabilities | 
  Ubuntu USN | 
                USN-7393-1 | Linux kernel (FIPS) vulnerabilities | 
  Ubuntu USN | 
                USN-7401-1 | Linux kernel (AWS) vulnerabilities | 
  Ubuntu USN | 
                USN-7403-1 | Linux kernel (HWE) vulnerabilities | 
  Ubuntu USN | 
                USN-7413-1 | Linux kernel (IoT) vulnerabilities | 
  Ubuntu USN | 
                USN-7468-1 | Linux kernel (Azure, N-Series) vulnerabilities | 
  Ubuntu USN | 
                USN-7539-1 | Linux kernel (Raspberry Pi) vulnerabilities | 
  Ubuntu USN | 
                USN-7540-1 | Linux kernel (Raspberry Pi) vulnerabilities | 
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 03 Nov 2025 23:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | 
Mon, 03 Nov 2025 21:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | 
Fri, 08 Nov 2024 16:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | 
Thu, 24 Oct 2024 04:00:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time appeared | 
        
        Linux
         Linux linux Kernel  | 
|
| Weaknesses | CWE-476 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products | 
        
        Linux
         Linux linux Kernel  | 
Tue, 22 Oct 2024 14:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Metrics | 
        
        ssvc
         
  | 
Tue, 22 Oct 2024 13:30:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| References | 
         | |
| Metrics | 
        
        
        threat_severity
         
  | 
    
        
        cvssV3_1
         
 
  | 
Mon, 21 Oct 2024 18:15:00 +0000
| Type | Values Removed | Values Added | 
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Check stream before comparing them [WHAT & HOW] amdgpu_dm can pass a null stream to dc_is_stream_unchanged. It is necessary to check for null before dereferencing them. This fixes 1 FORWARD_NULL issue reported by Coverity. | |
| Title | drm/amd/display: Check stream before comparing them | |
| References | 
         | 
        
  | 
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-11-03T22:23:01.340Z
Reserved: 2024-10-21T12:17:06.026Z
Link: CVE-2024-49896
Updated: 2025-11-03T22:23:01.340Z
Status : Modified
Published: 2024-10-21T18:15:12.067
Modified: 2025-11-03T23:16:29.737
Link: CVE-2024-49896
                        OpenCVE Enrichment
                    No data.
 Debian DLA
 Ubuntu USN