CVE-2025-39705

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Source
https://cve.org/CVERecord?id=CVE-2025-39705
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39705.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-39705
Downstream
Related
Published
2025-09-05T17:21:11.767Z
Modified
2026-03-12T02:17:55.352971Z
Summary
drm/amd/display: fix a Null pointer dereference vulnerability
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: fix a Null pointer dereference vulnerability

[Why] A null pointer dereference vulnerability exists in the AMD display driver's (DC module) cleanup function dcdestruct(). When display control context (dc->ctx) construction fails (due to memory allocation failure), this pointer remains NULL. During subsequent error handling when dcdestruct() is called, there's no NULL check before dereferencing the perftrace member (dc->ctx->perftrace), causing a kernel null pointer dereference crash.

[How] Check if dc->ctx is non-NULL before dereferencing.

(Updated commit text and removed unnecessary error message) (cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39705.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c
Fixed
0961673cc5f0055957aa46f25eb4ef6c07e00165
Fixed
4ade995b9b25b3c6e8dc42c27070340f1358d8c8
Fixed
1bcf63a44381691d6192872801f830ce3250e367

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39705.json"