{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63844", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.015Z", "datePublished": "2026-07-19T14:04:38.452Z", "dateUpdated": "2026-07-20T13:40:41.608Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-20T13:40:41.608Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring\n\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n\n(cherry picked from commit 2f6afc97d259d530f4f86c7743efbc573a8da927)"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}}], "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/amdgpu/jpeg_v4_0_3.c"], "versions": [{"version": "e684e654eba9481a9f462a7bbf5c385b7d1c076e", "lessThan": "b884ff67d62ef514eee9d5f605c03101c8b6bc98", "status": "affected", "versionType": "git"}, {"version": "e684e654eba9481a9f462a7bbf5c385b7d1c076e", "lessThan": "d6bd2a5fd611ec9c8a2411f084cff2435c709608", "status": "affected", "versionType": "git"}, {"version": "e684e654eba9481a9f462a7bbf5c385b7d1c076e", "lessThan": "8549b3933038e68dc61cb934b9a54223dd244a78", "status": "affected", "versionType": "git"}, {"version": "e684e654eba9481a9f462a7bbf5c385b7d1c076e", "lessThan": "249fa7549736de1c8e327d7ca6b32fa148a40bd6", "status": "affected", "versionType": "git"}, {"version": "e684e654eba9481a9f462a7bbf5c385b7d1c076e", "lessThan": "83e37c0987ca92f9e87789b46dd311dcf5a4a6c8", "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/amdgpu/jpeg_v4_0_3.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.5", "versionEndExcluding": "6.6.141"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.91"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.33"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b884ff67d62ef514eee9d5f605c03101c8b6bc98"}, {"url": "https://git.kernel.org/stable/c/d6bd2a5fd611ec9c8a2411f084cff2435c709608"}, {"url": "https://git.kernel.org/stable/c/8549b3933038e68dc61cb934b9a54223dd244a78"}, {"url": "https://git.kernel.org/stable/c/249fa7549736de1c8e327d7ca6b32fa148a40bd6"}, {"url": "https://git.kernel.org/stable/c/83e37c0987ca92f9e87789b46dd311dcf5a4a6c8"}], "title": "drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring", "id": "2502286", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502286"}, "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-1287", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.3 ring\nJPEG rings do not support 64-bit user fence writes, reject CS\nsubmissions with user fences.\n(cherry picked from commit 2f6afc97d259d530f4f86c7743efbc573a8da927)", "A flaw was found in the `drm/amdgpu/jpeg` module of the Linux kernel. A local user could trigger a Denial of Service (DoS) by submitting commands with 64-bit user fences to the JPEG rings, which do not support such operations. This could lead to system instability or a crash. The vulnerability has been resolved by rejecting these unsupported submissions."], "name": "CVE-2026-63844", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63844\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63844\nhttps://lore.kernel.org/linux-cve-announce/2026071930-CVE-2026-63844-61e2@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e684e654eba9481a9f462a7bbf5c385b7d1c076e,b884ff67d62ef514eee9d5f605c03101c8b6bc98)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e684e654eba9481a9f462a7bbf5c385b7d1c076e,d6bd2a5fd611ec9c8a2411f084cff2435c709608)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e684e654eba9481a9f462a7bbf5c385b7d1c076e,8549b3933038e68dc61cb934b9a54223dd244a78)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e684e654eba9481a9f462a7bbf5c385b7d1c076e,249fa7549736de1a9f462a7bbf5c385b7d1c076e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e684e654eba9481a9f462a7bbf5c385b7d1c076e,83e37c0987ca92f9e87789b46dd311dcf5a4a6c8)"}}], "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": "6.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.141,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.91,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.33,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "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": "2026-07-21T06:45:02.910782+00:00", "updated": "2026-07-21T06:45:02.910813+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}