{
  "cveId": "CVE-2026-31585",
  "url": "https://patchblox.com/security/cve/CVE-2026-31585",
  "summary": "CVE-2026-31585 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-31585, released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "media: vidtv: fix nfeeds state corruption on start_streaming failure",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  media: vidtv: fix nfeeds state corruption on start_streaming failure  syzbot reported a memory leak in vidtv_psi_service_desc_init [1].  When vidtv_start_streaming() fails inside vidtv_start_feed(), the nfeeds counter is left incremented even though no feed was actually started. This corrupts the driver state: subsequent start_feed calls see nfeeds \u003E 1 and skip starting the mux, while stop_feed calls eventually try to stop a non-existent stream.  This state corruption can also lead to memory leaks, since the mux and channel resources may be partially allocated during a failed start_streaming but never cleaned up, as the stop path finds dvb-\u003Estreaming == false and returns early.  Fix by decrementing nfeeds back when start_streaming fails, keeping the counter in sync with the actual number of active feeds.  [1] BUG: memory leak unreferenced object 0xffff888145b50820 (size 32):  comm \u0022syz.0.17\u0022, pid 6068, jiffies 4294944486  backtrace (crc 90a0c7d4):   vidtv_psi_service_desc_init\u002B0x74/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:288   vidtv_channel_s302m_init\u002B0xb1/0x2a0 drivers/media/test-drivers/vidtv/vidtv_channel.c:83   vidtv_channels_init\u002B0x1b/0x40 drivers/media/test-drivers/vidtv/vidtv_channel.c:524   vidtv_mux_init\u002B0x516/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:518   vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]   vidtv_start_feed\u002B0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239",
  "published": "2026-04-24T15:16:33Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00125,
  "epssPercentile": 0.0224,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31585",
  "fixes": [
    {
      "platform": "linux",
      "product": "dtb-aarch64",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21555-1",
      "released": "2026-08-12T01:09:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.73.2",
      "fix": "SUSE-SU-2026:3166-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3166-1",
      "released": "2026-07-21T17:09:27Z"
    },
    {
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      "product": "kernel-64kb",
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      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "SUSE-SU-2026:23231-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23231-1",
      "released": "2026-08-11T21:26:34Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "6.12.0-160000.37.1",
      "fix": "OPENSUSE-SU-2026:21555-1",
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      "released": "2026-08-12T01:09:28Z"
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      "fix": "SUSE-SU-2026:3166-1",
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  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}