CVE-2022-50750 (GCVE-0-2022-50750)
Vulnerability from cvelistv5
Published
2025-12-24 13:05
Modified
2026-08-05 08:59
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure In case mipi_dsi_attach() fails, call drm_panel_remove() to avoid memory leak.
References
Impacted products
Vendor Product Version
Linux Linux Version: 849b2e3ff9698226ab91e034d52cbb1da92a5b4c
Version: 849b2e3ff9698226ab91e034d52cbb1da92a5b4c
Version: 849b2e3ff9698226ab91e034d52cbb1da92a5b4c
Version: 849b2e3ff9698226ab91e034d52cbb1da92a5b4c
Version: 849b2e3ff9698226ab91e034d52cbb1da92a5b4c
Version: 849b2e3ff9698226ab91e034d52cbb1da92a5b4c
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panel/panel-sitronix-st7701.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/panel/panel-sitronix-st7701.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.1"
            },
            {
              "lessThan": "5.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.229",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.86",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.229",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.163",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.86",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.16",
                  "versionStartIncluding": "5.1",
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                },
                {
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                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure\n\nIn case mipi_dsi_attach() fails, call drm_panel_remove() to\navoid memory leak."
        }
      ],
      "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 bug is in the ST7701 MIPI-DSI panel probe path (st7701_dsi_probe \u2192 drm_panel_add \u2192 mipi_dsi_attach) and is subsequently hit via local DRM panel lookup (of_drm_find_panel walking panel_list); it is not reachable from network or adjacent-link packet processing.\nAC:L - mipi_dsi_attach commonly returns -EPROBE_DEFER/-EBUSY/-EINVAL on componentized DSI hosts (dw-mipi-dsi, Rockchip, MediaTek, sun6i), and on that failure path the dangling panel remains on panel_list while DEV_M frees st7701; a later of_drm_find_panel walk then deterministically uses the freed object with no attacker-uncontrollable race.\nPR:L - On realistic ST7701 deployments (e.g. Rockchip handhelds/HMI such as Odroid Go with sitronix,st7701), deferred-probe attach failure can establish the dangling panel_list entry at boot without privileges, and an unprivileged seat/video user can then trigger DRM connector/panel lookup; real init-namespace root is not required.\nUI:N - No separate victim action is required; boot-time probe deferral/failure plus the attacker\u2019s own DRM modeset/connector probe ioctls drive the vulnerable path.\nS:U - Impact is confined to host-kernel heap corruption within the same OS security authority; this is not a VM escape, IOMMU/DMA bypass, or other cross-boundary compromise.\nC:H - Leaving \u0026st7701-\u003epanel on the global panel_list after DEV_M frees st7701 is a reclaimable heap use-after-free; of_drm_find_panel reads panel-\u003edev through that freed object, enabling arbitrary kernel read primitives via heap reuse.\nI:H - The same UAF lets an attacker reclaim and reshape the freed st7701/drm_panel object so later panel_list consumers act on attacker-controlled function pointers/state, enabling arbitrary write and control-flow hijacking.\nA:H - Dereferencing the dangling panel_list entry (panel-\u003edev / panel ops) causes kernel oops/panic even without full exploitation, which is Availability High under kernel CVSS guidance for UAFs/crashes."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:59:38.061Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0b7c47b7f358f932159a9d5beec9616ef8a0c6b4"
        },
        {
          "url": "https://git.kernel.org/stable/c/576828e59a0e03bbc763872912b04f3e3a1b3311"
        },
        {
          "url": "https://git.kernel.org/stable/c/13fc167e1645c43c631d7752d98e377f0e4cbb15"
        },
        {
          "url": "https://git.kernel.org/stable/c/23fddf78eac8d79c56f93ab69b6c47a0816967c9"
        },
        {
          "url": "https://git.kernel.org/stable/c/465611e812587e72bf235034edce0e51be3d6809"
        },
        {
          "url": "https://git.kernel.org/stable/c/c62102165dd79284d42383d2f7ed17301bd8e629"
        }
      ],
      "title": "drm/panel/panel-sitronix-st7701: Remove panel on DSI attach failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50750",
    "datePublished": "2025-12-24T13:05:45.447Z",
    "dateReserved": "2025-12-24T13:02:21.544Z",
    "dateUpdated": "2026-08-05T08:59:38.061Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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