{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-57876",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-57876"
  ],
  "published": "2025-01-11T14:51:17Z",
  "summary": "drm/dp_mst: Fix resetting msg rx state after topology removal",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/dp_mst: Fix resetting msg rx state after topology removal\n\nIf the MST topology is removed during the reception of an MST down reply\nor MST up request sideband message, the\ndrm_dp_mst_topology_mgr::up_req_recv/down_rep_recv states could be reset\nfrom one thread via drm_dp_mst_topology_mgr_set_mst(false), racing with\nthe reading/parsing of the message from another thread via\ndrm_dp_mst_handle_down_rep() or drm_dp_mst_handle_up_req(). The race is\npossible since the reader/parser doesn't hold any lock while accessing\nthe reception state. This in turn can lead to a memory corruption in the\nreader/parser as described by commit bd2fccac61b4 (\"drm/dp_mst: Fix MST\nsideband message body length check\").\n\nFix the above by resetting the message reception state if needed before\nreading/parsing a message. Another solution would be to hold the\ndrm_dp_mst_topology_mgr::lock for the whole duration of the message\nreception/parsing in drm_dp_mst_handle_down_rep() and\ndrm_dp_mst_handle_up_req(), however this would require a bigger change.\nSince the fix is also needed for stable, opting for the simpler solution\nin this patch.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.120",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-57876"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/94b33b2d7640e807869451384eb88321dd0ffbd4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d834d20d2e86c52ed5cab41763fa61e6071680ef"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/be826b4451fd187a7c0b04be4f8243d5df6e0450"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-24T06:48:58Z"
  }
}