{
  "cveId": "CVE-2026-90363",
  "url": "https://patchblox.com/security/cve/CVE-2026-90363",
  "summary": "CVE-2026-90363 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-90363, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "drm/msm: don\u0027t tear down KMS twice when KMS init fails",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/msm: don\u0027t tear down KMS twice when KMS init fails  When priv-\u003Ekms_init() (mdp4_kms_init() / mdp5_kms_init()) fails partway through, both display drivers already tear their KMS state down via mdp4_destroy() / mdp5_kms_destroy() before returning the error. The common error path in msm_drm_init() then runs msm_drm_uninit() -\u003E msm_drm_kms_uninit(), which tries to destroy the very same KMS a second time, which causes a use-after-free crash.  Bring MDP4/MDP5 in line with the DPU driver whose dpu_kms_init() doesn\u0027t perform error cleanup on the failure. Let the common path own the cleanup, instead of freeing the KMS from their error paths.  The crash trace for the reference:    __lock_acquire from lock_acquire (kernel/locking/lockdep.c:5906 kernel/locking/lockdep.c:5863)   lock_acquire from touch_wq_lockdep_map (kernel/workqueue.c:4094 (discriminator 1))   touch_wq_lockdep_map from __flush_workqueue (kernel/workqueue.c:4136)   __flush_workqueue from msm_drm_kms_uninit (drivers/gpu/drm/msm/msm_kms.c:243 (discriminator 33))   msm_drm_kms_uninit from msm_drm_uninit (drivers/gpu/drm/msm/msm_drv.c:93)   msm_drm_uninit from msm_drm_init (drivers/gpu/drm/msm/msm_drv.c:184)   msm_drm_init from try_to_bring_up_aggregate_device (drivers/base/component.c:249 drivers/base/component.c:227)   try_to_bring_up_aggregate_device from __component_add (drivers/base/component.c:269 drivers/base/component.c:748)   __component_add from dsi_host_attach (drivers/gpu/drm/msm/dsi/dsi_host.c:1739)   dsi_host_attach from mipi_dsi_attach (drivers/gpu/drm/drm_mipi_dsi.c:383)   mipi_dsi_attach from sharp_nt_panel_probe (drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c:247)  Patchwork: https://patchwork.freedesktop.org/patch/742068/",
  "published": "2026-09-17T17:17:35Z",
  "severity": "",
  "epss": 0.00209,
  "epssPercentile": 0.11088,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-90363",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.115-2",
      "fix": "DEBIAN-CVE-2026-90363",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90363",
      "released": "2026-09-23T19:19:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.6-1",
      "fix": "DEBIAN-CVE-2026-90363",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90363",
      "released": "2026-09-23T19:19:02Z"
    }
  ],
  "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"
  }
}