CVE-2026-46216

In the Linux kernel, the following vulnerability has been resolved: drm/xe/hdcp: Add NULL check for media_gt in intel_hdcp_gsc_check_status() When media GT is disabled via configfs, there is no allocation for media_gt, which is kept as NULL. In such scenario, intel_hdcp_gsc_check_status() results in a kernel pagefault error due to &gt->uc.gsc being evaluated as an invalid memory address. Fix that by introducing a NULL check on media_gt and bailing out early if so. While at it, also drop the NULL check for gsc, since it can't be NULL if media_gt is not NULL. v2: - Get address for gsc only after checking that gt is not NULL. (Shuicheng) - Drop the NULL check for gsc. (Shuicheng) v3: - Add "Fixes" and "Cc: <stable...>" tags. (Matt) (cherry picked from commit bfaf87e84ca3ca3f6e275f9ae56da47a8b55ffd1)

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/60a1e131a811b68703da58fd805ab359b704ab03	Patch
https://git.kernel.org/stable/c/814326e86e929b865020ff44f4576dbdfe3f7ff3	Patch
https://git.kernel.org/stable/c/cad210d2851f3a7d9573bdfc02aa61d9287bbe8c	Patch
https://git.kernel.org/stable/c/d8ab4b47edf4578dbfbe5e95817107a514fa34cc	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.1:rc2::::::

History

No history.

Information

Published : 2026-05-28 10:16

Updated : 2026-06-17 10:53

NVD link : CVE-2026-46216

Mitre link : CVE-2026-46216

CVE.ORG link : CVE-2026-46216

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

{"id": "CVE-2026-46216", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4af50beb4e0f9e6aed9cd53436c099f1dba826f1", "lessThan": "cad210d2851f3a7d9573bdfc02aa61d9287bbe8c", "versionType": "git"}, {"status": "affected", "version": "4af50beb4e0f9e6aed9cd53436c099f1dba826f1", "lessThan": "814326e86e929b865020ff44f4576dbdfe3f7ff3", "versionType": "git"}, {"status": "affected", "version": "4af50beb4e0f9e6aed9cd53436c099f1dba826f1", "lessThan": "d8ab4b47edf4578dbfbe5e95817107a514fa34cc", "versionType": "git"}, {"status": "affected", "version": "4af50beb4e0f9e6aed9cd53436c099f1dba826f1", "lessThan": "60a1e131a811b68703da58fd805ab359b704ab03", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/xe/display/xe_hdcp_gsc.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.10"}, {"status": "unaffected", "version": "0", "lessThan": "6.10", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.92", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.34", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.9", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/xe/display/xe_hdcp_gsc.c"], "defaultStatus": "affected"}]}], "published": "2026-05-28T10:16:37.237", "references": [{"url": "https://git.kernel.org/stable/c/60a1e131a811b68703da58fd805ab359b704ab03", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/814326e86e929b865020ff44f4576dbdfe3f7ff3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cad210d2851f3a7d9573bdfc02aa61d9287bbe8c", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d8ab4b47edf4578dbfbe5e95817107a514fa34cc", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/hdcp: Add NULL check for media_gt in intel_hdcp_gsc_check_status()\n\nWhen media GT is disabled via configfs, there is no allocation for\nmedia_gt, which is kept as NULL. In such scenario,\nintel_hdcp_gsc_check_status() results in a kernel pagefault error due to\n&gt->uc.gsc being evaluated as an invalid memory address.\n\nFix that by introducing a NULL check on media_gt and bailing out early\nif so.\n\nWhile at it, also drop the NULL check for gsc, since it can't be NULL if\nmedia_gt is not NULL.\n\nv2:\n - Get address for gsc only after checking that gt is not NULL.\n (Shuicheng)\n - Drop the NULL check for gsc. (Shuicheng)\nv3:\n - Add \"Fixes\" and \"Cc: <stable...>\" tags. (Matt)\n\n(cherry picked from commit bfaf87e84ca3ca3f6e275f9ae56da47a8b55ffd1)"}], "lastModified": "2026-06-17T10:53:20.880", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "11F1574D-E103-4C7C-A865-2F67FCCC845B", "versionEndExcluding": "6.12.92", "versionStartIncluding": "6.10"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A4B1EF6D-18D7-4838-BC37-7499D5DCC3C0", "versionEndExcluding": "6.18.34", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "33ACA10B-B260-46EA-BD50-70EBE5097672", "versionEndExcluding": "7.0.9", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}