CVE-2024-35920 (GCVE-0-2024-35920)

Vulnerability from cvelistv5 – Published: 2024-05-19 10:10 – Updated: 2026-08-05 11:30
VLAI
Title
media: mediatek: vcodec: adding lock to protect decoder context list
Summary
In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: adding lock to protect decoder context list Add a lock for the ctx_list, to avoid accessing a NULL pointer within the 'vpu_dec_ipi_handler' function when the ctx_list has been deleted due to an unexpected behavior on the SCP IP block. Hardware name: Google juniper sku16 board (DT) pstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc : vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec] lr : scp_ipi_handler+0xd0/0x194 [mtk_scp] sp : ffffffc0131dbbd0 x29: ffffffc0131dbbd0 x28: 0000000000000000 x27: ffffff9bb277f348 x26: ffffff9bb242ad00 x25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4 x23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0 x21: 0000000000000010 x20: ffffff9b050ea328 x19: ffffffc0131dbc08 x18: 0000000000001000 x17: 0000000000000000 x16: ffffffd2d461c6e0 x15: 0000000000000242 x14: 000000000000018f x13: 000000000000004d x12: 0000000000000000 x11: 0000000000000001 x10: fffffffffffffff0 x9 : ffffff9bb6e793a8 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : fffffffffffffff0 x3 : 0000000000000020 x2 : ffffff9bb6e79080 x1 : 0000000000000010 x0 : ffffffc0131dbc08 Call trace: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)] scp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)] mt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)] scp_irq_handler+0x48/0x90 [mtk_scp (HASH:7046 3)] irq_thread_fn+0x38/0x94 irq_thread+0x100/0x1c0 kthread+0x140/0x1fc ret_from_fork+0x10/0x30 Code: 54000088 f94ca50a eb14015f 54000060 (f9400108) ---[ end trace ace43ce36cbd5c93 ]--- Kernel panic - not syncing: Oops: Fatal exception SMP: stopping secondary CPUs Kernel Offset: 0x12c4000000 from 0xffffffc010000000 PHYS_OFFSET: 0xffffffe580000000 CPU features: 0x08240002,2188200c Memory Limit: none
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 17:38 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 655b86e52eacdce79c2e02c5ec7258a97fcc2e4a , < 0a2dc707aa42214f9c4827bd57e344e29a0841d6 (git)
Affected: 655b86e52eacdce79c2e02c5ec7258a97fcc2e4a , < 23aaf824121055ba81b55f75444355bd83c8eb38 (git)
Affected: 655b86e52eacdce79c2e02c5ec7258a97fcc2e4a , < 6467cda18c9f9b5f2f9a0aa1e2861c653e41f382 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.27 , ≤ 6.6.* (semver)
Unaffected: 6.8.6 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-35920",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:38:32.899934Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-17T17:41:01.161Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:21:49.045Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c",
            "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
            "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h",
            "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "0a2dc707aa42214f9c4827bd57e344e29a0841d6",
              "status": "affected",
              "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
              "versionType": "git"
            },
            {
              "lessThan": "23aaf824121055ba81b55f75444355bd83c8eb38",
              "status": "affected",
              "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
              "versionType": "git"
            },
            {
              "lessThan": "6467cda18c9f9b5f2f9a0aa1e2861c653e41f382",
              "status": "affected",
              "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c",
            "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
            "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h",
            "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.27",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.27",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.6",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: adding lock to protect decoder context list\n\nAdd a lock for the ctx_list, to avoid accessing a NULL pointer\nwithin the \u0027vpu_dec_ipi_handler\u0027 function when the ctx_list has\nbeen deleted due to an unexpected behavior on the SCP IP block.\n\nHardware name: Google juniper sku16 board (DT)\npstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--)\npc : vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec]\nlr : scp_ipi_handler+0xd0/0x194 [mtk_scp]\nsp : ffffffc0131dbbd0\nx29: ffffffc0131dbbd0 x28: 0000000000000000\nx27: ffffff9bb277f348 x26: ffffff9bb242ad00\nx25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4\nx23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0\nx21: 0000000000000010 x20: ffffff9b050ea328\nx19: ffffffc0131dbc08 x18: 0000000000001000\nx17: 0000000000000000 x16: ffffffd2d461c6e0\nx15: 0000000000000242 x14: 000000000000018f\nx13: 000000000000004d x12: 0000000000000000\nx11: 0000000000000001 x10: fffffffffffffff0\nx9 : ffffff9bb6e793a8 x8 : 0000000000000000\nx7 : 0000000000000000 x6 : 000000000000003f\nx5 : 0000000000000040 x4 : fffffffffffffff0\nx3 : 0000000000000020 x2 : ffffff9bb6e79080\nx1 : 0000000000000010 x0 : ffffffc0131dbc08\nCall trace:\nvpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)]\nscp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)]\nmt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)]\nscp_irq_handler+0x48/0x90 [mtk_scp (HASH:7046 3)]\nirq_thread_fn+0x38/0x94\nirq_thread+0x100/0x1c0\nkthread+0x140/0x1fc\nret_from_fork+0x10/0x30\nCode: 54000088 f94ca50a eb14015f 54000060 (f9400108)\n---[ end trace ace43ce36cbd5c93 ]---\nKernel panic - not syncing: Oops: Fatal exception\nSMP: stopping secondary CPUs\nKernel Offset: 0x12c4000000 from 0xffffffc010000000\nPHYS_OFFSET: 0xffffffe580000000\nCPU features: 0x08240002,2188200c\nMemory Limit: none"
        }
      ],
      "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 vulnerable code is reached by opening/closing and driving the MediaTek V4L2 decoder node `/dev/videoN`, i.e. local syscalls on the device file. There is no network-facing path into `vpu_dec_check_ap_inst()`.\nAC:L - The attacker controls both sides of the race \u2014 an `open()`/`close()` loop mutates the shared `dev-\u003ectx_list` while decode jobs it submitted drive the SCP IPI ACKs that enter the unlocked `list_for_each_entry()`. It can also deterministically widen the window by opening many contexts and by forcing the 2000 ms `scp_ipi_send()` ACK timeout so late ACKs arrive after the context was freed.\nPR:L - `fops_vcodec_open()` enforces no capability check; any local user with access to the `/dev/video*` node (video group, and the sandboxed media/GPU processes on ChromeOS and Android that routinely hold it) can reach it. No root or CAP_* privilege is needed.\nUI:N - The attacking process performs every step itself \u2014 opening the decoder, submitting a bitstream, and closing the fd concurrently. No victim action or interaction is required.\nS:U - The corruption and the vulnerable code are both in the kernel\u0027s own security authority; the SCP co-processor merely delivers the IPI that triggers it. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unlocked traversal reads `ctx-\u003elist.next` and `ctx-\u003evpu_inst` out of a `mtk_vcodec_dec_ctx` that was just `kfree()`d, a use-after-free read of a reallocatable slab object. Heap grooming lets the attacker supply the link pointer, turning the loop into a controlled-address dereference usable for kernel memory disclosure.\nI:H - Because the staleness guard is racy, `vpu_dec_ipi_handler()` proceeds against a freed `vdec_vpu_inst` (freed with its containing `vdec_h264_inst`/`vdec_vp9_inst` in `fops_vcodec_release()`), writing `vpu-\u003efailure`, `vpu-\u003esignaled`, and on INIT_ACK `vpu-\u003evsi`/`vpu-\u003einst_addr`/`vpu-\u003einst_id` into memory that may already be reallocated. That is a use-after-free write at fixed offsets, exploitable for cross-object corruption and control-flow hijack.\nA:H - The commit records a reproduced fatal oops in `vpu_dec_ipi_handler+0x58` ending in \"Kernel panic - not syncing: Oops: Fatal exception\" with secondary CPUs stopped. Any local user able to open the decoder node can trigger this repeatedly for a full system crash."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:30:59.577Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
        },
        {
          "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
        }
      ],
      "title": "media: mediatek: vcodec: adding lock to protect decoder context list",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-35920",
    "datePublished": "2024-05-19T10:10:32.379Z",
    "dateReserved": "2024-05-17T13:50:33.124Z",
    "dateUpdated": "2026-08-05T11:30:59.577Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-35920",
      "date": "2026-10-01",
      "epss": "0.00236",
      "percentile": "0.13206"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: adding lock to protect decoder context list\n\nAdd a lock for the ctx_list, to avoid accessing a NULL pointer\nwithin the \u0027vpu_dec_ipi_handler\u0027 function when the ctx_list has\nbeen deleted due to an unexpected behavior on the SCP IP block.\n\nHardware name: Google juniper sku16 board (DT)\npstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--)\npc : vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec]\nlr : scp_ipi_handler+0xd0/0x194 [mtk_scp]\nsp : ffffffc0131dbbd0\nx29: ffffffc0131dbbd0 x28: 0000000000000000\nx27: ffffff9bb277f348 x26: ffffff9bb242ad00\nx25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4\nx23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0\nx21: 0000000000000010 x20: ffffff9b050ea328\nx19: ffffffc0131dbc08 x18: 0000000000001000\nx17: 0000000000000000 x16: ffffffd2d461c6e0\nx15: 0000000000000242 x14: 000000000000018f\nx13: 000000000000004d x12: 0000000000000000\nx11: 0000000000000001 x10: fffffffffffffff0\nx9 : ffffff9bb6e793a8 x8 : 0000000000000000\nx7 : 0000000000000000 x6 : 000000000000003f\nx5 : 0000000000000040 x4 : fffffffffffffff0\nx3 : 0000000000000020 x2 : ffffff9bb6e79080\nx1 : 0000000000000010 x0 : ffffffc0131dbc08\nCall trace:\nvpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)]\nscp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)]\nmt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)]\nscp_irq_handler+0x48/0x90 [mtk_scp (HASH:7046 3)]\nirq_thread_fn+0x38/0x94\nirq_thread+0x100/0x1c0\nkthread+0x140/0x1fc\nret_from_fork+0x10/0x30\nCode: 54000088 f94ca50a eb14015f 54000060 (f9400108)\n---[ end trace ace43ce36cbd5c93 ]---\nKernel panic - not syncing: Oops: Fatal exception\nSMP: stopping secondary CPUs\nKernel Offset: 0x12c4000000 from 0xffffffc010000000\nPHYS_OFFSET: 0xffffffe580000000\nCPU features: 0x08240002,2188200c\nMemory Limit: none"
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: mediatek: vcodec: agregar bloqueo para proteger la lista de contexto del decodificador. Agregue un bloqueo para ctx_list, para evitar acceder a un puntero NULL dentro de la funci\u00f3n \u0027vpu_dec_ipi_handler\u0027 cuando se ha eliminado ctx_list debido a un comportamiento inesperado en el bloque de IP de SCP. Nombre del hardware: placa Google Juniper sku16 (DT) pstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec] lr: scp_ipi_handler+0xd0/0x194 [mtk_scp] sp: 31dbbd0 x29: ffffffc0131dbbd0 x28: 0000000000000000 x27: ffffff9bb277f348 x26: ffffff9bb242ad00 x25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4 x23: ffffff9bb7fe85a0 22: ffffffc0133fbdb0 x21: 0000000000000010 x20: ffffff9b050ea328 x19: ffffffc0131dbc08 x18: 0000000000001000 x17: 0000000000000000 x16: 461c6e0 x15: 0000000000000242 x14: 000000000000018f x13: 000000000000004d x12: 0000000000000000 x11: 0000000000000001 x10: fffffffffffffff0 x9: ffffff9bb6e793a8 x8: 0000000000000000 x7: 00000000000 00000 x6: 000000000000003f x5: 0000000000000040 x4: fffffffffffffff0 x3: 0000000000000020 x2: ffffff9bb6e79080 x1: 0000000000000010 x0: ffffffc013 1dbc08 Rastreo de llamadas: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)] scp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)] mt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)] scp_irq_handler+0x48/0x90 (HASH:7046 3)] irq_thread_fn +0x38/0x94 irq_thread+0x100/0x1c0 kthread+0x140/0x1fc ret_from_fork+0x10/0x30 C\u00f3digo: 54000088 f94ca50a eb14015f 54000060 (f9400108) ---[ end trace ace43ce36cbd5c93 ] --- P\u00e1nico del kernel: no se sincroniza: Ups: excepci\u00f3n fatal SMP : detener CPU secundarias Desplazamiento del kernel: 0x12c4000000 de 0xffffffc010000000 PHYS_OFFSET: 0xffffffe580000000 Caracter\u00edsticas de la CPU: 0x08240002,2188200c L\u00edmite de memoria: ninguno"
        }
      ],
      "id": "CVE-2024-35920",
      "lastModified": "2024-11-21T09:21:12.443",
      "published": "2024-05-19T11:15:48.373",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c",
                  "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
                  "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h",
                  "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "0a2dc707aa42214f9c4827bd57e344e29a0841d6",
                    "status": "affected",
                    "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "23aaf824121055ba81b55f75444355bd83c8eb38",
                    "status": "affected",
                    "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6467cda18c9f9b5f2f9a0aa1e2861c653e41f382",
                    "status": "affected",
                    "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c",
                  "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
                  "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h",
                  "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.6"
                  },
                  {
                    "lessThan": "6.6",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.27",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.8.*",
                    "status": "unaffected",
                    "version": "6.8.6",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.9",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3301BF2B-8316-4F95-AE6D-3E81CA63F330",
                    "versionEndExcluding": "6.6.27",
                    "versionStartIncluding": "6.6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "22CA5433-1303-41EF-AD4C-F4645DC01541",
                    "versionEndExcluding": "6.8.6",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*",
                    "matchCriteriaId": "52048DDA-FC5A-4363-95A0-A6357B4D7F8C",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: adding lock to protect decoder context list\n\nAdd a lock for the ctx_list, to avoid accessing a NULL pointer\nwithin the \u0027vpu_dec_ipi_handler\u0027 function when the ctx_list has\nbeen deleted due to an unexpected behavior on the SCP IP block.\n\nHardware name: Google juniper sku16 board (DT)\npstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--)\npc : vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec]\nlr : scp_ipi_handler+0xd0/0x194 [mtk_scp]\nsp : ffffffc0131dbbd0\nx29: ffffffc0131dbbd0 x28: 0000000000000000\nx27: ffffff9bb277f348 x26: ffffff9bb242ad00\nx25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4\nx23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0\nx21: 0000000000000010 x20: ffffff9b050ea328\nx19: ffffffc0131dbc08 x18: 0000000000001000\nx17: 0000000000000000 x16: ffffffd2d461c6e0\nx15: 0000000000000242 x14: 000000000000018f\nx13: 000000000000004d x12: 0000000000000000\nx11: 0000000000000001 x10: fffffffffffffff0\nx9 : ffffff9bb6e793a8 x8 : 0000000000000000\nx7 : 0000000000000000 x6 : 000000000000003f\nx5 : 0000000000000040 x4 : fffffffffffffff0\nx3 : 0000000000000020 x2 : ffffff9bb6e79080\nx1 : 0000000000000010 x0 : ffffffc0131dbc08\nCall trace:\nvpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)]\nscp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)]\nmt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)]\nscp_irq_handler+0x48/0x90 [mtk_scp (HASH:7046 3)]\nirq_thread_fn+0x38/0x94\nirq_thread+0x100/0x1c0\nkthread+0x140/0x1fc\nret_from_fork+0x10/0x30\nCode: 54000088 f94ca50a eb14015f 54000060 (f9400108)\n---[ end trace ace43ce36cbd5c93 ]---\nKernel panic - not syncing: Oops: Fatal exception\nSMP: stopping secondary CPUs\nKernel Offset: 0x12c4000000 from 0xffffffc010000000\nPHYS_OFFSET: 0xffffffe580000000\nCPU features: 0x08240002,2188200c\nMemory Limit: none"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: media: mediatek: vcodec: agregar bloqueo para proteger la lista de contexto del decodificador. Agregue un bloqueo para ctx_list, para evitar acceder a un puntero NULL dentro de la funci\u00f3n \u0027vpu_dec_ipi_handler\u0027 cuando se ha eliminado ctx_list debido a un comportamiento inesperado en el bloque de IP de SCP. Nombre del hardware: placa Google Juniper sku16 (DT) pstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec] lr: scp_ipi_handler+0xd0/0x194 [mtk_scp] sp: 31dbbd0 x29: ffffffc0131dbbd0 x28: 0000000000000000 x27: ffffff9bb277f348 x26: ffffff9bb242ad00 x25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4 x23: ffffff9bb7fe85a0 22: ffffffc0133fbdb0 x21: 0000000000000010 x20: ffffff9b050ea328 x19: ffffffc0131dbc08 x18: 0000000000001000 x17: 0000000000000000 x16: 461c6e0 x15: 0000000000000242 x14: 000000000000018f x13: 000000000000004d x12: 0000000000000000 x11: 0000000000000001 x10: fffffffffffffff0 x9: ffffff9bb6e793a8 x8: 0000000000000000 x7: 00000000000 00000 x6: 000000000000003f x5: 0000000000000040 x4: fffffffffffffff0 x3: 0000000000000020 x2: ffffff9bb6e79080 x1: 0000000000000010 x0: ffffffc013 1dbc08 Rastreo de llamadas: vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)] scp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)] mt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)] scp_irq_handler+0x48/0x90 (HASH:7046 3)] irq_thread_fn +0x38/0x94 irq_thread+0x100/0x1c0 kthread+0x140/0x1fc ret_from_fork+0x10/0x30 C\u00f3digo: 54000088 f94ca50a eb14015f 54000060 (f9400108) ---[ end trace ace43ce36cbd5c93 ] --- P\u00e1nico del kernel: no se sincroniza: Ups: excepci\u00f3n fatal SMP : detener CPU secundarias Desplazamiento del kernel: 0x12c4000000 de 0xffffffc010000000 PHYS_OFFSET: 0xffffffe580000000 Caracter\u00edsticas de la CPU: 0x08240002,2188200c L\u00edmite de memoria: ninguno"
          }
        ],
        "id": "CVE-2024-35920",
        "lastModified": "2026-08-04T11:18:11.700",
        "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"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-35920",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:38:32.899934Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-05-19T11:15:48.373",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T19:03:16+00:00",
      "cve": "CVE-2024-35920",
      "id": "CVE-2024-35920",
      "initial_release_date": "2024-05-19T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: mediatek: vcodec: adding lock to protect decoder context list",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-35920.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-29T01:55:26Z",
      "cve": "CVE-2024-35920",
      "id": "CVE-2024-35920",
      "initial_release_date": "2024-05-21T01:59:13Z",
      "product_status:known_not_affected": "385",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-35920",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-35920.json",
      "version": "20"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-02T03:21:49.045Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-35920",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-06-17T17:38:32.899934Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-06-17T17:38:33.930Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c",
                "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
                "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h",
                "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "0a2dc707aa42214f9c4827bd57e344e29a0841d6",
                  "status": "affected",
                  "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
                  "versionType": "git"
                },
                {
                  "lessThan": "23aaf824121055ba81b55f75444355bd83c8eb38",
                  "status": "affected",
                  "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
                  "versionType": "git"
                },
                {
                  "lessThan": "6467cda18c9f9b5f2f9a0aa1e2861c653e41f382",
                  "status": "affected",
                  "version": "655b86e52eacdce79c2e02c5ec7258a97fcc2e4a",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c",
                "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.c",
                "drivers/media/platform/mediatek/vcodec/decoder/mtk_vcodec_dec_drv.h",
                "drivers/media/platform/mediatek/vcodec/decoder/vdec_vpu_if.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.6"
                },
                {
                  "lessThan": "6.6",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.27",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.8.*",
                  "status": "unaffected",
                  "version": "6.8.6",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.9",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.27",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8.6",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.9",
                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: adding lock to protect decoder context list\n\nAdd a lock for the ctx_list, to avoid accessing a NULL pointer\nwithin the \u0027vpu_dec_ipi_handler\u0027 function when the ctx_list has\nbeen deleted due to an unexpected behavior on the SCP IP block.\n\nHardware name: Google juniper sku16 board (DT)\npstate: 20400005 (nzCv daif +PAN -UAO -TCO BTYPE=--)\npc : vpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec]\nlr : scp_ipi_handler+0xd0/0x194 [mtk_scp]\nsp : ffffffc0131dbbd0\nx29: ffffffc0131dbbd0 x28: 0000000000000000\nx27: ffffff9bb277f348 x26: ffffff9bb242ad00\nx25: ffffffd2d440d3b8 x24: ffffffd2a13ff1d4\nx23: ffffff9bb7fe85a0 x22: ffffffc0133fbdb0\nx21: 0000000000000010 x20: ffffff9b050ea328\nx19: ffffffc0131dbc08 x18: 0000000000001000\nx17: 0000000000000000 x16: ffffffd2d461c6e0\nx15: 0000000000000242 x14: 000000000000018f\nx13: 000000000000004d x12: 0000000000000000\nx11: 0000000000000001 x10: fffffffffffffff0\nx9 : ffffff9bb6e793a8 x8 : 0000000000000000\nx7 : 0000000000000000 x6 : 000000000000003f\nx5 : 0000000000000040 x4 : fffffffffffffff0\nx3 : 0000000000000020 x2 : ffffff9bb6e79080\nx1 : 0000000000000010 x0 : ffffffc0131dbc08\nCall trace:\nvpu_dec_ipi_handler+0x58/0x1f8 [mtk_vcodec_dec (HASH:6c3f 2)]\nscp_ipi_handler+0xd0/0x194 [mtk_scp (HASH:7046 3)]\nmt8183_scp_irq_handler+0x44/0x88 [mtk_scp (HASH:7046 3)]\nscp_irq_handler+0x48/0x90 [mtk_scp (HASH:7046 3)]\nirq_thread_fn+0x38/0x94\nirq_thread+0x100/0x1c0\nkthread+0x140/0x1fc\nret_from_fork+0x10/0x30\nCode: 54000088 f94ca50a eb14015f 54000060 (f9400108)\n---[ end trace ace43ce36cbd5c93 ]---\nKernel panic - not syncing: Oops: Fatal exception\nSMP: stopping secondary CPUs\nKernel Offset: 0x12c4000000 from 0xffffffc010000000\nPHYS_OFFSET: 0xffffffe580000000\nCPU features: 0x08240002,2188200c\nMemory Limit: none"
            }
          ],
          "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 vulnerable code is reached by opening/closing and driving the MediaTek V4L2 decoder node `/dev/videoN`, i.e. local syscalls on the device file. There is no network-facing path into `vpu_dec_check_ap_inst()`.\nAC:L - The attacker controls both sides of the race \u2014 an `open()`/`close()` loop mutates the shared `dev-\u003ectx_list` while decode jobs it submitted drive the SCP IPI ACKs that enter the unlocked `list_for_each_entry()`. It can also deterministically widen the window by opening many contexts and by forcing the 2000 ms `scp_ipi_send()` ACK timeout so late ACKs arrive after the context was freed.\nPR:L - `fops_vcodec_open()` enforces no capability check; any local user with access to the `/dev/video*` node (video group, and the sandboxed media/GPU processes on ChromeOS and Android that routinely hold it) can reach it. No root or CAP_* privilege is needed.\nUI:N - The attacking process performs every step itself \u2014 opening the decoder, submitting a bitstream, and closing the fd concurrently. No victim action or interaction is required.\nS:U - The corruption and the vulnerable code are both in the kernel\u0027s own security authority; the SCP co-processor merely delivers the IPI that triggers it. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The unlocked traversal reads `ctx-\u003elist.next` and `ctx-\u003evpu_inst` out of a `mtk_vcodec_dec_ctx` that was just `kfree()`d, a use-after-free read of a reallocatable slab object. Heap grooming lets the attacker supply the link pointer, turning the loop into a controlled-address dereference usable for kernel memory disclosure.\nI:H - Because the staleness guard is racy, `vpu_dec_ipi_handler()` proceeds against a freed `vdec_vpu_inst` (freed with its containing `vdec_h264_inst`/`vdec_vp9_inst` in `fops_vcodec_release()`), writing `vpu-\u003efailure`, `vpu-\u003esignaled`, and on INIT_ACK `vpu-\u003evsi`/`vpu-\u003einst_addr`/`vpu-\u003einst_id` into memory that may already be reallocated. That is a use-after-free write at fixed offsets, exploitable for cross-object corruption and control-flow hijack.\nA:H - The commit records a reproduced fatal oops in `vpu_dec_ipi_handler+0x58` ending in \"Kernel panic - not syncing: Oops: Fatal exception\" with secondary CPUs stopped. Any local user able to open the decoder node can trigger this repeatedly for a full system crash."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T11:30:59.577Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/0a2dc707aa42214f9c4827bd57e344e29a0841d6"
            },
            {
              "url": "https://git.kernel.org/stable/c/23aaf824121055ba81b55f75444355bd83c8eb38"
            },
            {
              "url": "https://git.kernel.org/stable/c/6467cda18c9f9b5f2f9a0aa1e2861c653e41f382"
            }
          ],
          "title": "media: mediatek: vcodec: adding lock to protect decoder context list",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-35920",
        "datePublished": "2024-05-19T10:10:32.379Z",
        "dateReserved": "2024-05-17T13:50:33.124Z",
        "dateUpdated": "2026-08-05T11:30:59.577Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.