CVE-2026-97575

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97575", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-24T16:01:01.156Z", "datePublished": "2026-09-25T10:21:58.700Z", "dateUpdated": "2026-10-19T09:09:37.843Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:09:37.843Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-ctrls: validate AV1 tile counts\n\nThe stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop\nbounds and as indices into the mi_*_starts[] and *_in_sbs_minus_1[]\narrays, as the divisor for context_update_tile_id, and their product\nbounds the per-tile descriptor buffers, but std_validate_compound() does\nnot bound these u8 fields. Reject a V4L2_CTRL_TYPE_AV1_FRAME whose\ntile_cols or tile_rows exceeds V4L2_AV1_MAX_TILE_COLS / _ROWS, or whose\nproduct exceeds V4L2_AV1_MAX_TILE_COUNT. A zero tile count is left to the\nconsuming driver so the zero-initialised control that existing userspace\nsubmits is still accepted."}], "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 attacker-controlled tile_info.tile_cols/tile_rows u8s enter the kernel in V4L2_CID_STATELESS_AV1_FRAME via VIDIOC_S_EXT_CTRLS (or the request-fd path through try_set_ext_ctrls_request) on a local /dev/videoN AV1 decoder; validate_av1_frame() in std_validate_compound() is that ioctl's check. No network protocol carries those fields.\nAC:L - The attacker sets tile_cols and tile_rows to any u8 (e.g. 255) in that AV1_FRAME control and queues STREAMON/MEDIA_REQUEST_IOC_QUEUE; vdec_av1_slice_setup_tile() and rockchip_vpu981_av1_dec_set_tile_info() then loop and index on those values deterministically, with no race or victim-side state.\nPR:L - hantro_open() and fops_vcodec_open() have no capable() check; v4l2_prio_check() only compares V4L2 file-handle priority among openers. An unprivileged local user who can open the decoder node (video group, udev uaccess, or Android media-codec UID) is sufficient.\nUI:N - The attacking process itself opens the stateless AV1 decoder, submits the crafted AV1_FRAME control, queues buffers, and starts streaming. No victim action such as mounting media or opening a file is required.\nS:U - The overflows stay inside the kernel's kzalloc'd vdec_av1_slice_pfc (lat_buf->private_data) and the hantro tile_info coherent DMA buffer in the same kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - rockchip_vpu981_av1_dec_set_tile_info() reads group_entry[tile1*tile_cols+tile0] with a product up to 255*255 past the V4L2_AV1_MAX_TILE_COUNT TILE_GROUP_ENTRY array, and indexes height_in_sbs_minus_1[tile1] past its 64-entry field, pulling adjacent kernel heap into the decode path.\nI:H - vdec_av1_slice_setup_tile() writes tile_cols+1 entries into mi_col_starts[V4L2_AV1_MAX_TILE_COLS+1] on the kzalloc'd pfc before the later product check; rockchip_vpu981_av1_dec_set_tile_info() writes 16 bytes per tile into a 128-slot (AV1_TILE_INFO_SIZE) DMA buffer for up to 255*255 tiles, an attacker-controlled kernel write.\nA:H - Those heap and DMA-buffer overruns walk into unmapped or poisoned memory and produce a kernel oops or KASAN report, and the attacker can repeat the AV1_FRAME request at will."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/v4l2-core/v4l2-ctrls-core.c"], "versions": [{"version": "9de30f579980b498606a9c2440b73ae3b670771b", "lessThan": "1afaf85c4990fb1e3168d0d6e99246a65e526f1b", "status": "affected", "versionType": "git"}, {"version": "9de30f579980b498606a9c2440b73ae3b670771b", "lessThan": "85df9fc79b07f1cc7c953f930ae7e675d0c1e820", "status": "affected", "versionType": "git"}, {"version": "9de30f579980b498606a9c2440b73ae3b670771b", "lessThan": "c8891da0186fe4c04bccbbd7d84b01a3c941ac7a", "status": "affected", "versionType": "git"}, {"version": "9de30f579980b498606a9c2440b73ae3b670771b", "lessThan": "c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8", "status": "affected", "versionType": "git"}, {"version": "9de30f579980b498606a9c2440b73ae3b670771b", "lessThan": "439058ced617fbb3febc017b9e93bb7387f309e0", "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/v4l2-core/v4l2-ctrls-core.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.111", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.111"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1afaf85c4990fb1e3168d0d6e99246a65e526f1b"}, {"url": "https://git.kernel.org/stable/c/85df9fc79b07f1cc7c953f930ae7e675d0c1e820"}, {"url": "https://git.kernel.org/stable/c/c8891da0186fe4c04bccbbd7d84b01a3c941ac7a"}, {"url": "https://git.kernel.org/stable/c/c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8"}, {"url": "https://git.kernel.org/stable/c/439058ced617fbb3febc017b9e93bb7387f309e0"}], "title": "media: v4l2-ctrls: validate AV1 tile counts", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/v4l2-core/v4l2-ctrls-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "1afaf85c4990fb1e3168d0d6e99246a65e526f1b", "status": "affected", "version": "9de30f579980b498606a9c2440b73ae3b670771b", "versionType": "git"}, {"lessThan": "85df9fc79b07f1cc7c953f930ae7e675d0c1e820", "status": "affected", "version": "9de30f579980b498606a9c2440b73ae3b670771b", "versionType": "git"}, {"lessThan": "c8891da0186fe4c04bccbbd7d84b01a3c941ac7a", "status": "affected", "version": "9de30f579980b498606a9c2440b73ae3b670771b", "versionType": "git"}, {"lessThan": "c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8", "status": "affected", "version": "9de30f579980b498606a9c2440b73ae3b670771b", "versionType": "git"}, {"lessThan": "439058ced617fbb3febc017b9e93bb7387f309e0", "status": "affected", "version": "9de30f579980b498606a9c2440b73ae3b670771b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/v4l2-core/v4l2-ctrls-core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.5"}, {"lessThan": "6.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.111", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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: v4l2-ctrls: validate AV1 tile counts\n\nThe stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop\nbounds and as indices into the mi_*_starts[] and *_in_sbs_minus_1[]\narrays, as the divisor for context_update_tile_id, and their product\nbounds the per-tile descriptor buffers, but std_validate_compound() does\nnot bound these u8 fields. Reject a V4L2_CTRL_TYPE_AV1_FRAME whose\ntile_cols or tile_rows exceeds V4L2_AV1_MAX_TILE_COLS / _ROWS, or whose\nproduct exceeds V4L2_AV1_MAX_TILE_COUNT. A zero tile count is left to the\nconsuming driver so the zero-initialised control that existing userspace\nsubmits is still accepted."}], "id": "CVE-2026-97575", "lastModified": "2026-10-19T10:17:26.710", "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": "2026-09-25T11:17:08.230", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1afaf85c4990fb1e3168d0d6e99246a65e526f1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/439058ced617fbb3febc017b9e93bb7387f309e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/85df9fc79b07f1cc7c953f930ae7e675d0c1e820"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c8891da0186fe4c04bccbbd7d84b01a3c941ac7a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: media: v4l2-ctrls: validate AV1 tile counts", "id": "2541118", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541118"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: v4l2-ctrls: validate AV1 tile counts\nThe stateless AV1 decoders use tile_info.tile_cols and tile_rows as loop\nbounds and as indices into the mi_*_starts[] and *_in_sbs_minus_1[]\narrays, as the divisor for context_update_tile_id, and their product\nbounds the per-tile descriptor buffers, but std_validate_compound() does\nnot bound these u8 fields. Reject a V4L2_CTRL_TYPE_AV1_FRAME whose\ntile_cols or tile_rows exceeds V4L2_AV1_MAX_TILE_COLS / _ROWS, or whose\nproduct exceeds V4L2_AV1_MAX_TILE_COUNT. A zero tile count is left to the\nconsuming driver so the zero-initialised control that existing userspace\nsubmits is still accepted.", "A flaw was found in the Linux kernel's Video4Linux2 (V4L2) subsystem. The stateless AV1 video decoding interface fails to properly validate tile dimensions in frame control requests. A local attacker can exploit this vulnerability by submitting a specially crafted frame configuration with excessive tile counts, leading to out-of-bounds memory access. This flaw can result in a Denial of Service (DoS) via a kernel crash or potentially allow local privilege escalation."], "name": "CVE-2026-97575", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97575\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97575\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97575.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9de30f579980b498606a9c2440b73ae3b670771b,85df9fc79b07f1cc7c953f930ae7e675d0c1e820)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9de30f579980b498606a9c2440b73ae3b670771b,c8891da0186fe4c04bccbbd7d84b01a3c941ac7a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9de30f579980b498606a9c2440b73ae3b670771b,c4c88b5ba85685043d171e0e9c9d00a8cf6a89e8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9de30f579980b498606a9c2440b73ae3b670771b,439058ced617fbb3febc017b9e93bb7387f309e0)"}}], "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": "[6.12.111,6.13.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.19.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.3.0]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc3,*]"}}], "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": "2026-09-25T13:00:15.590881+00:00", "updated": "2026-10-01T11:30:05.848612+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}