CVE-2026-43269 (GCVE-0-2026-43269)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-06 11:28
VLAI?
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
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6d4e91ab97fda64e8cf9c8881cc3b4da026bd849 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 5718d98976ad6b9700e5a6afec67fc47a8a92580 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 57fa3487acfa3467405f8506b94682abd96e7393 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ec40702029b08ee8d5f5b03303d64a10e74a957b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 25e832a7830740e72103eb0b527680a4b64bbcb3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 082271e364a3205598c2e4e6233a9f49ce7941cf (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f12352471061df83a36edf54bbb16284793284e4 (git)
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    Linux Linux Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver"
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              "version": "6.1.165",
              "versionType": "semver"
            },
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.12.75",
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              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback\n\nAfter several commits, the slab memory increases. Some drm_crtc_commit\nobjects are not freed. The atomic_destroy_state callback only put the\nframebuffer. Use the __drm_atomic_helper_plane_destroy_state() function\nto put all the objects that are no longer needed.\n\nIt has been seen after hours of usage of a graphics application or using\nkmemleak:\n\nunreferenced object 0xc63a6580 (size 64):\n  comm \"egt_basic\", pid 171, jiffies 4294940784\n  hex dump (first 32 bytes):\n    40 50 34 c5 01 00 00 00 ff ff ff ff 8c 65 3a c6  @P4..........e:.\n    8c 65 3a c6 ff ff ff ff 98 65 3a c6 98 65 3a c6  .e:......e:..e:.\n  backtrace (crc c25aa925):\n    kmemleak_alloc+0x34/0x3c\n    __kmalloc_cache_noprof+0x150/0x1a4\n    drm_atomic_helper_setup_commit+0x1e8/0x7bc\n    drm_atomic_helper_commit+0x3c/0x15c\n    drm_atomic_commit+0xc0/0xf4\n    drm_atomic_helper_set_config+0x84/0xb8\n    drm_mode_setcrtc+0x32c/0x810\n    drm_ioctl+0x20c/0x488\n    sys_ioctl+0x14c/0xc20\n    ret_fast_syscall+0x0/0x54"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T11:28:54.178Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6d4e91ab97fda64e8cf9c8881cc3b4da026bd849"
        },
        {
          "url": "https://git.kernel.org/stable/c/5718d98976ad6b9700e5a6afec67fc47a8a92580"
        },
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          "url": "https://git.kernel.org/stable/c/57fa3487acfa3467405f8506b94682abd96e7393"
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        },
        {
          "url": "https://git.kernel.org/stable/c/f12352471061df83a36edf54bbb16284793284e4"
        }
      ],
      "title": "drm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43269",
    "datePublished": "2026-05-06T11:28:54.178Z",
    "dateReserved": "2026-05-01T14:12:55.997Z",
    "dateUpdated": "2026-05-06T11:28:54.178Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43269\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-06T12:16:48.053\",\"lastModified\":\"2026-05-06T13:07:51.607\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/atmel-hlcdc: fix memory leak from the atomic_destroy_state callback\\n\\nAfter several commits, the slab memory increases. Some drm_crtc_commit\\nobjects are not freed. The atomic_destroy_state callback only put the\\nframebuffer. Use the __drm_atomic_helper_plane_destroy_state() function\\nto put all the objects that are no longer needed.\\n\\nIt has been seen after hours of usage of a graphics application or using\\nkmemleak:\\n\\nunreferenced object 0xc63a6580 (size 64):\\n  comm \\\"egt_basic\\\", pid 171, jiffies 4294940784\\n  hex dump (first 32 bytes):\\n    40 50 34 c5 01 00 00 00 ff ff ff ff 8c 65 3a c6  @P4..........e:.\\n    8c 65 3a c6 ff ff ff ff 98 65 3a c6 98 65 3a c6  .e:......e:..e:.\\n  backtrace (crc c25aa925):\\n    kmemleak_alloc+0x34/0x3c\\n    __kmalloc_cache_noprof+0x150/0x1a4\\n    drm_atomic_helper_setup_commit+0x1e8/0x7bc\\n    drm_atomic_helper_commit+0x3c/0x15c\\n    drm_atomic_commit+0xc0/0xf4\\n    drm_atomic_helper_set_config+0x84/0xb8\\n    drm_mode_setcrtc+0x32c/0x810\\n    drm_ioctl+0x20c/0x488\\n    sys_ioctl+0x14c/0xc20\\n    ret_fast_syscall+0x0/0x54\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/082271e364a3205598c2e4e6233a9f49ce7941cf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/25e832a7830740e72103eb0b527680a4b64bbcb3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3e64e78f4a70e3f6ac8fe5a7071f08ffd25a2489\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5718d98976ad6b9700e5a6afec67fc47a8a92580\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/57fa3487acfa3467405f8506b94682abd96e7393\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6d4e91ab97fda64e8cf9c8881cc3b4da026bd849\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ec40702029b08ee8d5f5b03303d64a10e74a957b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f12352471061df83a36edf54bbb16284793284e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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