CVE-2024-26833 (GCVE-0-2024-26833)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:10 – Updated: 2026-05-11 20:05
VLAI
Title
drm/amd/display: Fix memory leak in dm_sw_fini()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix memory leak in dm_sw_fini() After destroying dmub_srv, the memory associated with it is not freed, causing a memory leak: unreferenced object 0xffff896302b45800 (size 1024): comm "(udev-worker)", pid 222, jiffies 4294894636 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 6265fd77): [<ffffffff993495ed>] kmalloc_trace+0x29d/0x340 [<ffffffffc0ea4a94>] dm_dmub_sw_init+0xb4/0x450 [amdgpu] [<ffffffffc0ea4e55>] dm_sw_init+0x15/0x2b0 [amdgpu] [<ffffffffc0ba8557>] amdgpu_device_init+0x1417/0x24e0 [amdgpu] [<ffffffffc0bab285>] amdgpu_driver_load_kms+0x15/0x190 [amdgpu] [<ffffffffc0ba09c7>] amdgpu_pci_probe+0x187/0x4e0 [amdgpu] [<ffffffff9968fd1e>] local_pci_probe+0x3e/0x90 [<ffffffff996918a3>] pci_device_probe+0xc3/0x230 [<ffffffff99805872>] really_probe+0xe2/0x480 [<ffffffff99805c98>] __driver_probe_device+0x78/0x160 [<ffffffff99805daf>] driver_probe_device+0x1f/0x90 [<ffffffff9980601e>] __driver_attach+0xce/0x1c0 [<ffffffff99803170>] bus_for_each_dev+0x70/0xc0 [<ffffffff99804822>] bus_add_driver+0x112/0x210 [<ffffffff99807245>] driver_register+0x55/0x100 [<ffffffff990012d1>] do_one_initcall+0x41/0x300 Fix this by freeing dmub_srv after destroying it.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-17 19:24 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 743b9786b14ae0d7d13b3782dccad158e577e9bb , < b49b022f7dfce85eb77d0d987008fde5c01d7857 (git)
Affected: 743b9786b14ae0d7d13b3782dccad158e577e9bb , < 33f649f1b1cea39ed360e6c12bba4fac83118e6e (git)
Affected: 743b9786b14ae0d7d13b3782dccad158e577e9bb , < 58168005337eabef345a872be3f87d0215ff3b30 (git)
Affected: 743b9786b14ae0d7d13b3782dccad158e577e9bb , < 10c6b90e975358c17856a578419dc449887899c2 (git)
Affected: 743b9786b14ae0d7d13b3782dccad158e577e9bb , < 541e79265ea7e339a7c4a462feafe9f8f996e04b (git)
Affected: 743b9786b14ae0d7d13b3782dccad158e577e9bb , < bae67893578d608e35691dcdfa90c4957debf1d3 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.211 , ≤ 5.10.* (semver)
Unaffected: 5.15.150 , ≤ 5.15.* (semver)
Unaffected: 6.1.80 , ≤ 6.1.* (semver)
Unaffected: 6.6.19 , ≤ 6.6.* (semver)
Unaffected: 6.7.7 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "id": "CVE-2024-26833",
      "lastModified": "2025-01-07T17:12:57.887",
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: corrige la p\u00e9rdida de memoria en dm_sw_fini() Despu\u00e9s de destruir dmub_srv, la memoria asociada a \u00e9l no se libera, lo que provoca una p\u00e9rdida de memoria: objeto sin referencia 0xffff896302b45800 (tama\u00f1o 1024) : comm \"(udev-worker)\", pid 222, sjiffies 4294894636 volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ........... ..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ retroceso (crc 6265fd77): [] kmalloc_trace+ 0x29d/0x340 [] dm_dmub_sw_init+0xb4/0x450 [amdgpu] [] dm_sw_init+0x15/0x2b0 [amdgpu] [] 1417/0x24e0 [amdgpu] [] amdgpu_driver_load_kms+0x15 /0x190 [amdgpu] [] amdgpu_pci_probe+0x187/0x4e0 [amdgpu] [] local_pci_probe+0x3e/0x90 [] pci_device_probe+0xc3/0x230 [ ] realmente_probe+0xe2/0x480 [\u0026lt; ffffffff99805c98\u0026gt;] __driver_probe_device+0x78/0x160 [] driver_probe_device+0x1f/0x90 [] __driver_attach+0xce/0x1c0 [] v+0x70/0xc0 [] bus_add_driver+0x112/0x210 [\u0026lt; ffffffff99807245\u0026gt;] driver_register+0x55/0x100 [] do_one_initcall+0x41/0x300 Solucione este problema liberando dmub_srv despu\u00e9s de destruirlo."
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                "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
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            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-26833",
                    "options": [
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                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
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                    "timestamp": "2024-06-17T19:24:28.460328Z",
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              "shortName": "CISA-ADP"
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              "product": "Linux",
              "programFiles": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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              "versions": [
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                  "version": "5.15.150",
                  "versionType": "semver"
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                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.80",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.19",
                  "versionType": "semver"
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                  "version": "6.7.7",
                  "versionType": "semver"
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                  "status": "unaffected",
                  "version": "6.8",
                  "versionType": "original_commit_for_fix"
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          ],
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              "nodes": [
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          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix memory leak in dm_sw_fini()\n\nAfter destroying dmub_srv, the memory associated with it is\nnot freed, causing a memory leak:\n\nunreferenced object 0xffff896302b45800 (size 1024):\n  comm \"(udev-worker)\", pid 222, jiffies 4294894636\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace (crc 6265fd77):\n    [\u003cffffffff993495ed\u003e] kmalloc_trace+0x29d/0x340\n    [\u003cffffffffc0ea4a94\u003e] dm_dmub_sw_init+0xb4/0x450 [amdgpu]\n    [\u003cffffffffc0ea4e55\u003e] dm_sw_init+0x15/0x2b0 [amdgpu]\n    [\u003cffffffffc0ba8557\u003e] amdgpu_device_init+0x1417/0x24e0 [amdgpu]\n    [\u003cffffffffc0bab285\u003e] amdgpu_driver_load_kms+0x15/0x190 [amdgpu]\n    [\u003cffffffffc0ba09c7\u003e] amdgpu_pci_probe+0x187/0x4e0 [amdgpu]\n    [\u003cffffffff9968fd1e\u003e] local_pci_probe+0x3e/0x90\n    [\u003cffffffff996918a3\u003e] pci_device_probe+0xc3/0x230\n    [\u003cffffffff99805872\u003e] really_probe+0xe2/0x480\n    [\u003cffffffff99805c98\u003e] __driver_probe_device+0x78/0x160\n    [\u003cffffffff99805daf\u003e] driver_probe_device+0x1f/0x90\n    [\u003cffffffff9980601e\u003e] __driver_attach+0xce/0x1c0\n    [\u003cffffffff99803170\u003e] bus_for_each_dev+0x70/0xc0\n    [\u003cffffffff99804822\u003e] bus_add_driver+0x112/0x210\n    [\u003cffffffff99807245\u003e] driver_register+0x55/0x100\n    [\u003cffffffff990012d1\u003e] do_one_initcall+0x41/0x300\n\nFix this by freeing dmub_srv after destroying it."
            }
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            "dateUpdated": "2026-05-11T20:05:00.334Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "references": [
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              "url": "https://git.kernel.org/stable/c/b49b022f7dfce85eb77d0d987008fde5c01d7857"
            },
            {
              "url": "https://git.kernel.org/stable/c/33f649f1b1cea39ed360e6c12bba4fac83118e6e"
            },
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              "url": "https://git.kernel.org/stable/c/58168005337eabef345a872be3f87d0215ff3b30"
            },
            {
              "url": "https://git.kernel.org/stable/c/10c6b90e975358c17856a578419dc449887899c2"
            },
            {
              "url": "https://git.kernel.org/stable/c/541e79265ea7e339a7c4a462feafe9f8f996e04b"
            },
            {
              "url": "https://git.kernel.org/stable/c/bae67893578d608e35691dcdfa90c4957debf1d3"
            }
          ],
          "title": "drm/amd/display: Fix memory leak in dm_sw_fini()",
          "x_generator": {
            "engine": "bippy-1.2.0"
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      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26833",
        "datePublished": "2024-04-17T10:10:01.654Z",
        "dateReserved": "2024-02-19T14:20:24.181Z",
        "dateUpdated": "2026-05-11T20:05:00.334Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.
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  • 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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.