{
  "cveId": "CVE-2026-99007",
  "url": "https://patchblox.com/security/cve/CVE-2026-99007",
  "summary": "CVE-2026-99007 is fixed in 29 products on 1 platform, first by DEBIAN-CVE-2026-99007, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "drm/fb-helper: defer setup when fbdev_probe() fails, not just on -EAGAIN",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/fb-helper: defer setup when fbdev_probe() fails, not just on -EAGAIN  __drm_fb_helper_initial_config_and_unlock() calls drm_client_modeset_probe() first, which already fills in each mode_set-\u003Emode/num_connectors for every connected output, and only afterwards calls drm_fb_helper_single_fb_probe() to create fb_helper-\u003Efb and wire it into those mode_sets via drm_setup_crtcs_fb().  If drm_fb_helper_single_fb_probe() fails with anything other than -EAGAIN (e.g. dev-\u003Edriver-\u003Efbdev_probe() itself fails), the function bails out before drm_setup_crtcs_fb() runs and before setting fb_helper-\u003Edeferred_setup. The client is left with mode_sets that have a mode and connectors but mode_set-\u003Efb == NULL, and nothing marks this fb_helper as needing a retry.  __drm_fb_helper_restore_fbdev_mode_unlocked() only skips committing when fb_helper-\u003Edeferred_setup is set, so a later .restore() call (drm_lastclose() on process exit, in this report) commits the stale mode_set through drm_client_modeset_commit() -\u003E drm_client_modeset_commit_atomic() -\u003E __drm_atomic_helper_set_config(), which hits WARN_ON(!set-\u003Efb).  Mark fb_helper-\u003Edeferred_setup on any drm_fb_helper_single_fb_probe() failure, not just -EAGAIN, so restore keeps skipping the commit until a later hotplug event successfully re-probes and re-populates mode_set-\u003Efb. The real error code is still returned to the caller unchanged.",
  "published": "2026-10-23T13:17:23Z",
  "severity": "Low",
  "cvss": 2.5,
  "epss": 0.00177,
  "epssPercentile": 0.07331,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-99007",
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.12",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.12-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.12.113-138.209.amzn2023",
      "fix": "ALAS2023-2026-3335",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3335",
      "released": "2026-11-07T01:06:52Z"
    },
    {
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      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
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      "fix": "SUSE-SU-2026:5091-1",
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      "released": "2026-11-07T00:43:02Z"
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      "fix": "SUSE-SU-2026:5091-1",
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      "released": "2026-11-07T00:43:02Z"
    },
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      "fix": "SUSE-SU-2026:5091-1",
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      "released": "2026-11-07T00:43:02Z"
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      "released": "2026-11-07T00:43:02Z"
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      "released": "2026-11-07T00:43:02Z"
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      "released": "2026-11-07T00:43:02Z"
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      "fix": "SUSE-SU-2026:5091-1",
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      "released": "2026-11-07T00:43:02Z"
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  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}