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drm/amd/display: set new_stream to NULL after release

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)

Announced Source revision 1
Original source ↗

CVE-2026-68236

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-2026-68236

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": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "92b7c6e3a1546c6db868b07e93fa6fb950d1d3a0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "bf9c06c70f496f1ba4474caf95c69696c828340e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "01ba5b36898d6258f584269537cc49e7b05cf7c6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "5182e442e61397d446c36995b8f5676942d35b82",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "679f23f0a3606afcef1ffabd72222f00a54ad9e3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "0676fecbb5242aa22c057e78326d6d6041db034c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9b690ef3c70422cdcd0cf912db33f2c92ef4a53f",
        "lessThan": "9fa26b9eed6195bf840f39ac183b9a6237548755",
        "versionType": "git"
      }
    ],
    "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": "4.15"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.15",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.148",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.101",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.42",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-68236

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#41159 · Revision 1
Added to Heist Feed
Publisher date
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