CVE-2026-80542

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80542", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.765Z", "datePublished": "2026-08-26T14:37:15.168Z", "dateUpdated": "2026-08-26T14:37:15.168Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-26T14:37:15.168Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()\n\namdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when\nvblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before\na stream is attached to it.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nRIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu]\nCall Trace:\n drm_vblank_enable\n drm_vblank_get\n drm_crtc_get_sequence_ioctl\n drm_ioctl_kernel\n drm_ioctl\n\nReproduced by running VKCTS with WSI tests enabled on RADV.\n\nGuard the enable path on acrtc_state->stream being non-NULL, matching\nthe existing checks in this function.\n\n(cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c"], "versions": [{"version": "34d66bc7ff10e146a4cec76cf286979740a10954", "lessThan": "5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af", "status": "affected", "versionType": "git"}, {"version": "34d66bc7ff10e146a4cec76cf286979740a10954", "lessThan": "4a6bc92fac30070511d66bcce4ed9b7dac983180", "status": "affected", "versionType": "git"}, {"version": "34d66bc7ff10e146a4cec76cf286979740a10954", "lessThan": "f2a1c4c6fe0a6fcde02e59dde546dba28d283635", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af"}, {"url": "https://git.kernel.org/stable/c/4a6bc92fac30070511d66bcce4ed9b7dac983180"}, {"url": "https://git.kernel.org/stable/c/f2a1c4c6fe0a6fcde02e59dde546dba28d283635"}], "title": "drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af", "status": "affected", "version": "34d66bc7ff10e146a4cec76cf286979740a10954", "versionType": "git"}, {"lessThan": "4a6bc92fac30070511d66bcce4ed9b7dac983180", "status": "affected", "version": "34d66bc7ff10e146a4cec76cf286979740a10954", "versionType": "git"}, {"lessThan": "f2a1c4c6fe0a6fcde02e59dde546dba28d283635", "status": "affected", "version": "34d66bc7ff10e146a4cec76cf286979740a10954", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.18"}, {"lessThan": "6.18", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.46", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()\n\namdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when\nvblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before\na stream is attached to it.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nRIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu]\nCall Trace:\n drm_vblank_enable\n drm_vblank_get\n drm_crtc_get_sequence_ioctl\n drm_ioctl_kernel\n drm_ioctl\n\nReproduced by running VKCTS with WSI tests enabled on RADV.\n\nGuard the enable path on acrtc_state->stream being non-NULL, matching\nthe existing checks in this function.\n\n(cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)"}], "id": "CVE-2026-80542", "lastModified": "2026-08-26T15:17:08.540", "metrics": {}, "published": "2026-08-26T15:17:08.540", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a6bc92fac30070511d66bcce4ed9b7dac983180"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2a1c4c6fe0a6fcde02e59dde546dba28d283635"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()", "id": "2524493", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2524493"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amd/display: Fix NULL pointer dereference in amdgpu_dm_crtc_set_vblank()\namdgpu_dm_crtc_set_vblank() dereferences acrtc_state->stream when\nvblank is enabled/queried from DRM_IOCTL_MODE_CRTC_GET_SEQUENCE before\na stream is attached to it.\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nRIP: amdgpu_dm_crtc_set_vblank+0x6b/0x4d0 [amdgpu]\nCall Trace:\ndrm_vblank_enable\ndrm_vblank_get\ndrm_crtc_get_sequence_ioctl\ndrm_ioctl_kernel\ndrm_ioctl\nReproduced by running VKCTS with WSI tests enabled on RADV.\nGuard the enable path on acrtc_state->stream being non-NULL, matching\nthe existing checks in this function.\n(cherry picked from commit 7b1b31bf6942e6f43509b48da23f8e27269aac39)", "A flaw was found in the drm/amd/display component of the Linux kernel. The amdgpu_dm_crtc_set_vblank() function attempts to dereference a NULL pointer when vblank is enabled or queried before a display stream is properly attached. This can be triggered by a local attacker running specific graphics tests, leading to a kernel NULL pointer dereference and a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-80542", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80542\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80542\nhttps://lore.kernel.org/linux-cve-announce/2026082606-CVE-2026-80542-ede3@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[34d66bc7ff10e146a4cec76cf286979740a10954,5045fb4c70bfde36a05e0f41cf35ddfb6d85d3af)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[34d66bc7ff10e146a4cec76cf286979740a10954,4a6bc92fac30070511d66bcce4ed9b7dac983180)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[34d66bc7ff10e146a4cec76cf286979740a10954,f2a1c4c6fe0a6fcde02e59dde546dba28d283635)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.46,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.10,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-26T16:15:07.787259+00:00", "updated": "2026-08-28T08:30:17.070094+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}