{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68219", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.375Z", "datePublished": "2026-08-10T12:00:39.405Z", "dateUpdated": "2026-08-13T22:42:02.627Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-13T22:42:02.627Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: nxp: imx8-isi: Fix potential out-of-bounds issues\n\nThe maximum downscaling factor supported by ISI can be up to 16. Add\nminimum value constraint before applying the setting to hardware.\nOtherwise, the process will not respond even when Ctrl+C is executed."}], "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"}, "scenarios": [{"lang": "en", "value": "AV:L - The vulnerability is reached exclusively through V4L2 ioctls (VIDIOC_S_FMT on the /dev/videoX M2M node, or VIDIOC_SUBDEV_S_SELECTION on the ISI pipe subdev), which require local access to the device node. There is no remote or adjacent-network path into the imx8-isi driver.\nAC:L - Exploitation is a deterministic ioctl sequence: set a large OUTPUT format, set a 1x1 CAPTURE format (accepted because the bound was only min() against the source size and MXC_ISI_MIN_WIDTH/HEIGHT = 1), queue buffers and stream. No race, timing window, or uncontrollable memory-layout condition is involved.\nPR:L - The attacker only needs to open the ISI video device node; no capability check exists anywhere along the path from the ioctl handler to mxc_isi_channel_set_scaling(). On the i.MX8 embedded, automotive and vision devices where this driver runs, /dev/video* is routinely accessible to ordinary unprivileged applications via the video/camera group.\nUI:N - The attacking process performs the entire sequence itself \u2014 open, S_FMT, REQBUFS, QBUF, STREAMON \u2014 with no victim action, no separate privileged process, and no administrator step required.\nS:U - The corruption and the hang stay within the kernel of the same machine; the ISI DMA write targets kernel memory adjacent to the video buffer and does not cross a VM, hypervisor or IOMMU security boundary.\nC:H - The scaler saturates at a 16x factor while the destination buffer and CHNL_OUT_BUF_PITCH are sized from the far smaller requested format, so the ISI DMA engine overruns the video buffer into adjacent kernel memory; such heap corruption in DMA-able memory is leverageable to disclose kernel memory contents, and stale buffer content is returned to userspace.\nI:H - The hardware writes an image much larger than the allocated destination buffer, producing an out-of-bounds DMA write whose contents are the attacker's own input frame in M2M mode \u2014 an attacker-controlled overwrite of kernel memory following the buffer, sufficient for control-flow-relevant corruption.\nA:H - The fix commit states the transaction never completes and \"the process will not respond even when Ctrl+C is executed\", leaving an unkillable task and a wedged ISI channel that denies the imaging pipeline to all users; the accompanying out-of-bounds DMA write can additionally panic the kernel."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h", "drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c", "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"], "versions": [{"version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "lessThan": "690cdda752f3dc6b7a8b2d4a243e0207b66a1f37", "status": "affected", "versionType": "git"}, {"version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "lessThan": "ba7e1b06cbdad3b7c3314390cca22aff42f655d4", "status": "affected", "versionType": "git"}, {"version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "lessThan": "28ae75dba701d7aa69a36802c398582933d3e0e6", "status": "affected", "versionType": "git"}, {"version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "lessThan": "75cdfaa7c908ca06d564170da9c80fb579f149a5", "status": "affected", "versionType": "git"}, {"version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "lessThan": "57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf", "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/media/platform/nxp/imx8-isi/imx8-isi-core.h", "drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c", "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"], "versions": [{"version": "6.4", "status": "affected"}, {"version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.4", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/690cdda752f3dc6b7a8b2d4a243e0207b66a1f37"}, {"url": "https://git.kernel.org/stable/c/ba7e1b06cbdad3b7c3314390cca22aff42f655d4"}, {"url": "https://git.kernel.org/stable/c/28ae75dba701d7aa69a36802c398582933d3e0e6"}, {"url": "https://git.kernel.org/stable/c/75cdfaa7c908ca06d564170da9c80fb579f149a5"}, {"url": "https://git.kernel.org/stable/c/57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf"}], "title": "media: nxp: imx8-isi: Fix potential out-of-bounds issues", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h", "drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c", "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "690cdda752f3dc6b7a8b2d4a243e0207b66a1f37", "status": "affected", "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "versionType": "git"}, {"lessThan": "ba7e1b06cbdad3b7c3314390cca22aff42f655d4", "status": "affected", "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "versionType": "git"}, {"lessThan": "28ae75dba701d7aa69a36802c398582933d3e0e6", "status": "affected", "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "versionType": "git"}, {"lessThan": "75cdfaa7c908ca06d564170da9c80fb579f149a5", "status": "affected", "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "versionType": "git"}, {"lessThan": "57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf", "status": "affected", "version": "cf21f328fcafacf4f96e7a30ef9dceede1076378", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/platform/nxp/imx8-isi/imx8-isi-core.h", "drivers/media/platform/nxp/imx8-isi/imx8-isi-m2m.c", "drivers/media/platform/nxp/imx8-isi/imx8-isi-pipe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.4"}, {"lessThan": "6.4", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "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\nmedia: nxp: imx8-isi: Fix potential out-of-bounds issues\n\nThe maximum downscaling factor supported by ISI can be up to 16. Add\nminimum value constraint before applying the setting to hardware.\nOtherwise, the process will not respond even when Ctrl+C is executed."}], "id": "CVE-2026-68219", "lastModified": "2026-08-13T23:17:25.023", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-08-10T13:20:09.897", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/28ae75dba701d7aa69a36802c398582933d3e0e6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/690cdda752f3dc6b7a8b2d4a243e0207b66a1f37"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/75cdfaa7c908ca06d564170da9c80fb579f149a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba7e1b06cbdad3b7c3314390cca22aff42f655d4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Denial of Service in NXP i.MX8 ISI driver", "id": "2513387", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513387"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: nxp: imx8-isi: Fix potential out-of-bounds issues\nThe maximum downscaling factor supported by ISI can be up to 16. Add\nminimum value constraint before applying the setting to hardware.\nOtherwise, the process will not respond even when Ctrl+C is executed.", "A flaw was found in the NXP i.MX8 Image Sensor Interface (ISI) driver within the Linux kernel. This out-of-bounds vulnerability arises from inadequate validation of the downscaling factor before it is applied to the hardware. A local attacker could exploit this to cause a denial of service, making the affected process unresponsive and unkillable."], "name": "CVE-2026-68219", "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:00:39Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68219\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68219\nhttps://git.kernel.org/stable/c/28ae75dba701d7aa69a36802c398582933d3e0e6\nhttps://git.kernel.org/stable/c/57a7ec5c9f38ce6c4d6209c4b75c8e57e1fea6cf\nhttps://git.kernel.org/stable/c/690cdda752f3dc6b7a8b2d4a243e0207b66a1f37\nhttps://git.kernel.org/stable/c/75cdfaa7c908ca06d564170da9c80fb579f149a5\nhttps://git.kernel.org/stable/c/ba7e1b06cbdad3b7c3314390cca22aff42f655d4"], "threat_severity": "Moderate"}