drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback

{
  "id": "dda185db2a56810a06de15f6702d9bab44bd097ffd824bb7f40a40820f628a1f",
  "url": "https://osv.dev/vulnerability/CVE-2026-43269",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback After several commits, the slab memory increases. Some drm_crtc_commit objects are not freed. The atomic_destroy_state callback only put the framebuffer. Use the __drm_atomic_helper_plane_destroy_state() function to put all the objects that are no longer needed. It has been seen after hours of usage of a graphics application or using kmemleak: unreferenced object 0xc63a6580 (size 64): comm \"egt_basic\", pid 171, jiffies 4294940784 hex dump (first 32 bytes): 40 50 34 c5 01 00 00 00 ff ff ff ff 8c 65 3a c6 @P4..........e:. 8c 65 3a c6 ff ff ff ff 98 65 3a c6 98 65 3a c6 .e:......e:..e:. backtrace (crc c25aa925): kmemleak_alloc+0x34/0x3c __kmalloc_cache_noprof+0x150/0x1a4 drm_atomic_helper_setup_commit+0x1e8/0x7bc drm_atomic_helper_commit+0x3c/0x15c drm_atomic_commit+0xc0/0xf4 drm_atomic_helper_set_config+0x84/0xb8 drm_mode_setcrtc+0x32c/0x810 drm_ioctl+0x20c/0x488 sys_ioctl+0x14c/0xc20 ret_fast_syscall+0x0/0x54",
    "evidence": "osv:CVE-2026-43269",
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    "severity": "unknown",
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      "modified": "2026-10-28T02:30:45.742247427Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/082271e364a3205598c2e4e6233a9f49ce7941cf",
        "https://git.kernel.org/stable/c/25e832a7830740e72103eb0b527680a4b64bbcb3",
        "https://git.kernel.org/stable/c/3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489",
        "https://git.kernel.org/stable/c/5718d98976ad6b9700e5a6afec67fc47a8a92580",
        "https://git.kernel.org/stable/c/57fa3487acfa3467405f8506b94682abd96e7393",
        "https://git.kernel.org/stable/c/6d4e91ab97fda64e8cf9c8881cc3b4da026bd849",
        "https://git.kernel.org/stable/c/ec40702029b08ee8d5f5b03303d64a10e74a957b",
        "https://git.kernel.org/stable/c/f12352471061df83a36edf54bbb16284793284e4",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43269.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-43269",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43269.json"
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    "related_cves": [
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        "value": "CVE-2026-43269",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 513513,
  "published_at": "2026-05-06T11:28:54.178+00:00"
}