GHSA-FG7V-QR3P-44MC
Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33In the Linux kernel, the following vulnerability has been resolved:
drm/i915: clear CRTC color blob pointers after dropping refs
intel_crtc_put_color_blobs() drops the CRTC color blob references, but leaves the corresponding pointers unchanged.
This can matter in intel_crtc_prepare_cleared_state(), which frees the old CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw(). The latter can fail while looking up the DP tunnel group state, for example with -EDEADLK.
If that happens, the function returns without completing the cleared state preparation. The failed atomic state will then be cleared by the atomic core and intel_crtc_free_hw_state() can be called again for the same state, dropping the same blob references again.
Clear the blob pointers after dropping the references so repeated cleanup of the same CRTC hw state is safe.
(cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)
{
"affected": [],
"aliases": [
"CVE-2026-72452"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-15T06:22:19Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: clear CRTC color blob pointers after dropping refs\n\nintel_crtc_put_color_blobs() drops the CRTC color blob references, but\nleaves the corresponding pointers unchanged.\n\nThis can matter in intel_crtc_prepare_cleared_state(), which frees the\nold CRTC hw state before calling intel_dp_tunnel_atomic_clear_stream_bw().\nThe latter can fail while looking up the DP tunnel group state, for\nexample with -EDEADLK.\n\nIf that happens, the function returns without completing the cleared\nstate preparation. The failed atomic state will then be cleared by the\natomic core and intel_crtc_free_hw_state() can be called again for the\nsame state, dropping the same blob references again.\n\nClear the blob pointers after dropping the references so repeated cleanup\nof the same CRTC hw state is safe.\n\n(cherry picked from commit d5005addb5f68e8a0edce249506757bdc9e3d8c8)",
"id": "GHSA-fg7v-qr3p-44mc",
"modified": "2026-08-17T06:33:30Z",
"published": "2026-08-15T06:32:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72452"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/164afa1a3af8e8c91b4a6d5fd7b79a44ec70abf0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2024940522ef451098c940ab0b82d647de5e5d9b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/31f077088e0faae6be8377741f356dea1b94ba46"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ac554ad943610031a25795d6ef71316f6164c136"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.