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drm/amd/display: check dc_state_create_copy() for NULL in dm_suspend

Type: advisorySource: Official CVE List1 source record

In 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)

Announced Source revision 1
Original source ↗

CVE-2026-98785

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98785

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4cc2a94d96caeb3c975acdae7351c2f997c32175",
        "lessThan": "29302964ef583f3a57efc3c990bc0a71337bd3a4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8092aa3ab8f7b737a34b71f91492c676a843043a",
        "lessThan": "686baa1f4ec43b33e39e3d4b4a4539a91d17e883",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8092aa3ab8f7b737a34b71f91492c676a843043a",
        "lessThan": "197946faa1b7968046ba475ae2f266847c6f51ed",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8092aa3ab8f7b737a34b71f91492c676a843043a",
        "lessThan": "7283b78ca07ce491984a63f6288f3f8de5bdcb22",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "8092aa3ab8f7b737a34b71f91492c676a843043a",
        "lessThan": "015e72cde567d2450e282c2790773463156b2d0a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ea000e4b4ee5363997715531cb3d024b4e5d561c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d0b8b23b9c2ebec693a36fea518d8f13493ad655",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "83c7f509ef087041604e9572938f82e18b724c9d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1686675405d07f35eae7ff3d13a530034b899df2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6.6.46",
        "lessThan": "6.6.160",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.10.258",
        "lessThan": "5.11",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.165",
        "lessThan": "5.16",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.105",
        "lessThan": "6.2",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.10.5",
        "lessThan": "6.11",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.11"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.11",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.113",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.56",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.10",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98785

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#48978 · Revision 1
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Publisher date
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