CVE-2026-97577

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97577", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-24T16:01:01.156Z", "datePublished": "2026-09-25T10:21:59.950Z", "dateUpdated": "2026-10-19T09:09:39.822Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:09:39.822Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity\n\nrockchip_vpu981_av1_dec_set_tile_info() indexes the tile group entry\narray by tile1 * tile_cols + tile0, reading up to tile_cols * tile_rows\nentries, lays out one descriptor per tile in the AV1_MAX_TILES tile_info\nbuffer, and programs the real tile_cols / tile_rows into the hardware.\n\nThe tile group entry control is a dynamic array sized to the number of\nentries userspace submitted, independent of tile_cols / tile_rows, so a\nframe that claims more tiles than entries reads past the array. A frame\nthat claims more than AV1_MAX_TILES tiles also leaves the hardware\nprogrammed for more tiles than the descriptor buffer holds.\n\nReject both in prepare_run(): tile_cols * tile_rows must not exceed the\nsubmitted entry count or AV1_MAX_TILES. The entry count is read via\nv4l2_ctrl_find() (ctrl->elems). This mirrors the bound the mediatek AV1\ndecoder already enforces."}], "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 malformed tile_cols/tile_rows and TILE_GROUP_ENTRY data are supplied by a local process through V4L2 request ioctls (VIDIOC_S_EXT_CTRLS + MEDIA_REQUEST_IOC_QUEUE) on the vpu981 /dev/videoN decoder, reaching rockchip_vpu981_av1_dec_run() -> set_tile_info(); no network protocol carries the input.\nAC:L - validate_av1_frame() never bounds tile_cols/tile_rows (u8, up to 255), so setting tile_cols*tile_rows above 128 makes set_tile_info() deterministically write 16 bytes per tile past the 2KB AV1_TILE_INFO_SIZE buffer, with no race and no outside condition.\nPR:L - No capability check guards the stateless decoder's controls or request queue; the attacker only needs open access to the /dev/videoN node, which desktop udev grants to the logged-in seat user (uaccess) or the video group, i.e. an ordinary local user.\nUI:N - The attacker builds the AV1 frame and tile group entry controls and queues the decode request themselves; no other user has to act.\nS:U - The corruption is of kernel memory adjacent to the tile_info coherent buffer, and the resulting impact stays within the kernel's own authority; no VM, IOMMU or sandbox boundary is crossed.\nC:H - set_tile_info() reads group_entry[tile_id] past the dynamic TILE_GROUP_ENTRY array and width/height_in_sbs_minus_1[] past 64 entries; this out-of-bounds heap read is not strictly bounded to a few bytes, and the write primitive enables further disclosure.\nI:H - The loop writes tile_cols*tile_rows*16 bytes (up to ~1MB) into a 2KB dma_alloc_coherent buffer, with attacker-controlled tile_offset/tile_size and tile width/height bytes, giving an out-of-bounds kernel memory write of attacker-controlled data and length.\nA:H - A large overflow past the tile_info allocation corrupts adjacent kernel memory or faults on an unmapped guard page, causing a kernel oops or panic that the attacker can repeat 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/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c"], "versions": [{"version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "95ee48eb17c91bd4859b65e0a54e7722f370d0e5", "status": "affected", "versionType": "git"}, {"version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "40029f7f35397853f8711d6fce1d90a4c7a01f8c", "status": "affected", "versionType": "git"}, {"version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "a41babf528f70c9a82ed31cfb5fe19065910f7f0", "status": "affected", "versionType": "git"}, {"version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "fd965369220cc160bb20a24991790814bfbab401", "status": "affected", "versionType": "git"}, {"version": "727a400686a2c0d25015c9e44916a59b72882f83", "lessThan": "367db8b23c26a913d76ed70457bbcd781c422b49", "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/verisilicon/rockchip_vpu981_hw_av1_dec.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/95ee48eb17c91bd4859b65e0a54e7722f370d0e5"}, {"url": "https://git.kernel.org/stable/c/40029f7f35397853f8711d6fce1d90a4c7a01f8c"}, {"url": "https://git.kernel.org/stable/c/a41babf528f70c9a82ed31cfb5fe19065910f7f0"}, {"url": "https://git.kernel.org/stable/c/fd965369220cc160bb20a24991790814bfbab401"}, {"url": "https://git.kernel.org/stable/c/367db8b23c26a913d76ed70457bbcd781c422b49"}], "title": "media: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "95ee48eb17c91bd4859b65e0a54e7722f370d0e5", "status": "affected", "version": "727a400686a2c0d25015c9e44916a59b72882f83", "versionType": "git"}, {"lessThan": "40029f7f35397853f8711d6fce1d90a4c7a01f8c", "status": "affected", "version": "727a400686a2c0d25015c9e44916a59b72882f83", "versionType": "git"}, {"lessThan": "a41babf528f70c9a82ed31cfb5fe19065910f7f0", "status": "affected", "version": "727a400686a2c0d25015c9e44916a59b72882f83", "versionType": "git"}, {"lessThan": "fd965369220cc160bb20a24991790814bfbab401", "status": "affected", "version": "727a400686a2c0d25015c9e44916a59b72882f83", "versionType": "git"}, {"lessThan": "367db8b23c26a913d76ed70457bbcd781c422b49", "status": "affected", "version": "727a400686a2c0d25015c9e44916a59b72882f83", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.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: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity\n\nrockchip_vpu981_av1_dec_set_tile_info() indexes the tile group entry\narray by tile1 * tile_cols + tile0, reading up to tile_cols * tile_rows\nentries, lays out one descriptor per tile in the AV1_MAX_TILES tile_info\nbuffer, and programs the real tile_cols / tile_rows into the hardware.\n\nThe tile group entry control is a dynamic array sized to the number of\nentries userspace submitted, independent of tile_cols / tile_rows, so a\nframe that claims more tiles than entries reads past the array. A frame\nthat claims more than AV1_MAX_TILES tiles also leaves the hardware\nprogrammed for more tiles than the descriptor buffer holds.\n\nReject both in prepare_run(): tile_cols * tile_rows must not exceed the\nsubmitted entry count or AV1_MAX_TILES. The entry count is read via\nv4l2_ctrl_find() (ctrl->elems). This mirrors the bound the mediatek AV1\ndecoder already enforces."}], "id": "CVE-2026-97577", "lastModified": "2026-10-19T10:17:26.973", "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": "2026-09-25T11:17:08.447", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/367db8b23c26a913d76ed70457bbcd781c422b49"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40029f7f35397853f8711d6fce1d90a4c7a01f8c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/95ee48eb17c91bd4859b65e0a54e7722f370d0e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a41babf528f70c9a82ed31cfb5fe19065910f7f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fd965369220cc160bb20a24991790814bfbab401"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: media: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity", "id": "2541220", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541220"}, "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-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity\nrockchip_vpu981_av1_dec_set_tile_info() indexes the tile group entry\narray by tile1 * tile_cols + tile0, reading up to tile_cols * tile_rows\nentries, lays out one descriptor per tile in the AV1_MAX_TILES tile_info\nbuffer, and programs the real tile_cols / tile_rows into the hardware.\nThe tile group entry control is a dynamic array sized to the number of\nentries userspace submitted, independent of tile_cols / tile_rows, so a\nframe that claims more tiles than entries reads past the array. A frame\nthat claims more than AV1_MAX_TILES tiles also leaves the hardware\nprogrammed for more tiles than the descriptor buffer holds.\nReject both in prepare_run(): tile_cols * tile_rows must not exceed the\nsubmitted entry count or AV1_MAX_TILES. The entry count is read via\nv4l2_ctrl_find() (ctrl->elems). This mirrors the bound the mediatek AV1\ndecoder already enforces.", "A flaw was found in the Linux kernel's Verisilicon Rockchip AV1 video decoder driver. A local attacker can exploit this vulnerability by submitting a specially crafted AV1 video frame that specifies more tiles than provided by userspace or supported by hardware limits. This lack of bounds validation causes the driver to read memory outside allocated boundaries, potentially leading to a denial of service (DoS) via a system crash or kernel information disclosure."], "name": "CVE-2026-97577", "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: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-2026-97577\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97577\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97577.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[727a400686a2c0d25015c9e44916a59b72882f83,40029f7f35397853f8711d6fce1d90a4c7a01f8c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[727a400686a2c0d25015c9e44916a59b72882f83,a41babf528f70c9a82ed31cfb5fe19065910f7f0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[727a400686a2c0d25015c9e44916a59b72882f83,fd965369220cc160bb20a24991790814bfbab401)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[727a400686a2c0d25015c9e44916a59b72882f83,367db8b23c26a913d76ed70457bbcd781c422b49)"}}], "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": "[6.12.111,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,8.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "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": "2026-09-25T13:00:15.590405+00:00", "updated": "2026-09-26T00:00:07.583847+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125", "CWE-200"]}