GHSA-M7HP-R32V-XXXR
Vulnerability from github – Published: 2026-10-18 18:32 – Updated: 2026-10-30 15:34In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend
dc_state_create_copy() can return NULL on allocation failure. dm_suspend() only conditionally skips dm_gpureset_toggle_interrupts() and continues execution, returning success. dm_resume() then dereferences the NULL cached_dc_state in link_enc_cfg_copy() and the following dc_state->stream_count loop, crashing during GPU reset recovery.
Return -ENOMEM immediately if the copy fails, so the caller aborts suspend instead of leaving a NULL cached state for resume.
(cherry picked from commit 84b6d7932fdd2857795a257f9f258562a3cddcab)
{
"affected": [],
"aliases": [
"CVE-2026-98785"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-18T16:17:32Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: check dc_state_create_copy() for NULL in dm_suspend\n\ndc_state_create_copy() can return NULL on allocation failure.\ndm_suspend() only conditionally skips dm_gpureset_toggle_interrupts()\nand continues execution, returning success. dm_resume() then\ndereferences the NULL cached_dc_state in link_enc_cfg_copy() and the\nfollowing dc_state-\u003estream_count loop, crashing during GPU reset\nrecovery.\n\nReturn -ENOMEM immediately if the copy fails, so the caller aborts\nsuspend instead of leaving a NULL cached state for resume.\n\n(cherry picked from commit 84b6d7932fdd2857795a257f9f258562a3cddcab)",
"id": "GHSA-m7hp-r32v-xxxr",
"modified": "2026-10-30T15:34:02Z",
"published": "2026-10-18T18:32:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98785"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/015e72cde567d2450e282c2790773463156b2d0a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0b24f9d4e6e8ab64da8f2ae85bd1790d0f6a596f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/197946faa1b7968046ba475ae2f266847c6f51ed"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/29302964ef583f3a57efc3c990bc0a71337bd3a4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/686baa1f4ec43b33e39e3d4b4a4539a91d17e883"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7283b78ca07ce491984a63f6288f3f8de5bdcb22"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ed65678bb23a5f5040932960851ac39bdeafb765"
}
],
"schema_version": "1.4.0",
"severity": []
}
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