CVE-2026-97577

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

• https://git.kernel.org/stable/c/367db8b23c26a913d76ed70457bbcd781c422b49 416baaa9-dc9f-4396-8d5f-8c081fb06d67
• https://git.kernel.org/stable/c/40029f7f35397853f8711d6fce1d90a4c7a01f8c 416baaa9-dc9f-4396-8d5f-8c081fb06d67
• https://git.kernel.org/stable/c/a41babf528f70c9a82ed31cfb5fe19065910f7f0 416baaa9-dc9f-4396-8d5f-8c081fb06d67
• https://git.kernel.org/stable/c/fd965369220cc160bb20a24991790814bfbab401 416baaa9-dc9f-4396-8d5f-8c081fb06d67

The full cvelistV5 record. Download as CVE-2026-97577.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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": "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": "6.12.*",
              "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-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.7",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc3",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "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."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-25T14:41:20.341Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97577",
    "datePublished": "2026-09-25T10:21:59.950Z",
    "dateReserved": "2026-09-24T16:01:01.156Z",
    "dateUpdated": "2026-09-25T14:41:20.341Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}