{
  "cveId": "CVE-2026-43236",
  "url": "https://patchblox.com/security/cve/CVE-2026-43236",
  "summary": "CVE-2026-43236 is fixed in 16 products on 1 platform, first by DEBIAN-CVE-2026-43236, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  drm/atmel-hlcdc: fix use-after-free of drm_crtc_...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/atmel-hlcdc: fix use-after-free of drm_crtc_commit after release  The atmel_hlcdc_plane_atomic_duplicate_state() callback was copying the atmel_hlcdc_plane state structure without properly duplicating the drm_plane_state. In particular, state-\u003Ecommit remained set to the old state commit, which can lead to a use-after-free in the next drm_atomic_commit() call.  Fix this by calling __drm_atomic_helper_duplicate_plane_state(), which correctly clones the base drm_plane_state (including the -\u003Ecommit pointer).  It has been seen when closing and re-opening the device node while another DRM client (e.g. fbdev) is still attached:  ============================================================================= BUG kmalloc-64 (Not tainted): Poison overwritten -----------------------------------------------------------------------------  0xc611b344-0xc611b344 @offset=836. First byte 0x6a instead of 0x6b FIX kmalloc-64: Restoring Poison 0xc611b344-0xc611b344=0x6b Allocated in drm_atomic_helper_setup_commit\u002B0x1e8/0x7bc age=178 cpu=0 pid=29  drm_atomic_helper_setup_commit\u002B0x1e8/0x7bc  drm_atomic_helper_commit\u002B0x3c/0x15c  drm_atomic_commit\u002B0xc0/0xf4  drm_framebuffer_remove\u002B0x4cc/0x5a8  drm_mode_rmfb_work_fn\u002B0x6c/0x80  process_one_work\u002B0x12c/0x2cc  worker_thread\u002B0x2a8/0x400  kthread\u002B0xc0/0xdc  ret_from_fork\u002B0x14/0x28 Freed in drm_atomic_helper_commit_hw_done\u002B0x100/0x150 age=8 cpu=0 pid=169  drm_atomic_helper_commit_hw_done\u002B0x100/0x150  drm_atomic_helper_commit_tail\u002B0x64/0x8c  commit_tail\u002B0x168/0x18c  drm_atomic_helper_commit\u002B0x138/0x15c  drm_atomic_commit\u002B0xc0/0xf4  drm_atomic_helper_set_config\u002B0x84/0xb8  drm_mode_setcrtc\u002B0x32c/0x810  drm_ioctl\u002B0x20c/0x488  sys_ioctl\u002B0x14c/0xc20  ret_fast_syscall\u002B0x0/0x54 Slab 0xef8bc360 objects=21 used=16 fp=0xc611b7c0 flags=0x200(workingset|zone=0) Object 0xc611b340 @offset=832 fp=0xc611b7c0",
  "published": "2026-05-06T12:16:43Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00135,
  "epssPercentile": 0.02985,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "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"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 16.0",
      "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",
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      "fix": "OPENSUSE-SU-2026:21555-1",
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    },
    {
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      "released": "2026-07-21T17:09:27Z"
    },
    {
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    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "opensuse-leap 16.0",
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      "fix": "OPENSUSE-SU-2026:21555-1",
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    {
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      "released": "2026-08-11T21:34:22Z"
    },
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      "product": "kernel-docs",
      "release": "opensuse-leap 16.0",
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      "release": "opensuse-leap 16.0",
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      "release": "opensuse-leap 16.0",
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    {
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  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}