{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-31599",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-31599"
  ],
  "published": "2026-04-24T14:43:40Z",
  "summary": "media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections\n\nsyzbot reported a general protection fault in vidtv_psi_desc_assign [1].\n\nvidtv_psi_pmt_stream_init() can return NULL on memory allocation\nfailure, but vidtv_channel_pmt_match_sections() does not check for\nthis. When tail is NULL, the subsequent call to\nvidtv_psi_desc_assign(&tail->descriptor, desc) dereferences a NULL\npointer offset, causing a general protection fault.\n\nAdd a NULL check after vidtv_psi_pmt_stream_init(). On failure, clean\nup the already-allocated stream chain and return.\n\n[1]\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nRIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629\nCall Trace:\n <TASK>\n vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline]\n vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479\n vidtv_mux_init+0x526/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:519\n vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]\n vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239",
  "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": "6.1.175",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31599"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/54e18a23e62e81b8335cec3e8e9c5cb33fd88665"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5c986b77200b5ea754ba6636deacc7e0942fec9b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/93d9e747a9e8a5ca9e3c5e37dcff76b40399139f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b7efb4c94797c504a1c678edb48c2aa311d3309f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e589de36da106ef739ba98f66f5a5c2023370706"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2dff11fb5098ae453651f8f77e94ad499c078022"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b832cfd516b8504e95884622cee60bf9a39b7945"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/07c1e474cf9acf777f09d14a8f8dfcef5b84e46f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f8e1fc918a9fe67103bcda01d20d745f264d00a7"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-06-15T02:03:26Z"
  }
}