FKIE_CVE-2024-26856

Vulnerability from fkie_nvd - Published: 2024-04-17 11:15 - Updated: 2025-03-04 15:39
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: sparx5: Fix use after free inside sparx5_del_mact_entry Based on the static analyzis of the code it looks like when an entry from the MAC table was removed, the entry was still used after being freed. More precise the vid of the mac_entry was used after calling devm_kfree on the mac_entry. The fix consists in first using the vid of the mac_entry to delete the entry from the HW and after that to free it.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52Patch, Mailing List
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025Patch, Mailing List
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674Patch, Mailing List
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64Patch, Mailing List
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6Patch, Mailing List
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0de693d68b0a18d5e256556c7c62d92cca35ad52Patch, Mailing List
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/71809805b95052ff551922f11660008fb3666025Patch, Mailing List
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/89d72d4125e94aa3c2140fedd97ce07ba9e37674Patch, Mailing List
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e46274df1100fb0c06704195bfff5bfbd418bf64Patch, Mailing List
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e83bebb718fd1f42549358730e1206164e0861d6Patch, Mailing List
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
linux linux_kernel 6.8
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sparx5: Fix use after free inside sparx5_del_mact_entry\n\nBased on the static analyzis of the code it looks like when an entry\nfrom the MAC table was removed, the entry was still used after being\nfreed. More precise the vid of the mac_entry was used after calling\ndevm_kfree on the mac_entry.\nThe fix consists in first using the vid of the mac_entry to delete the\nentry from the HW and after that to free it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: sparx5: corrige el use after free dentro de sparx5_del_mact_entry Seg\u00fan el an\u00e1lisis est\u00e1tico del c\u00f3digo, parece que cuando se elimin\u00f3 una entrada de la tabla MAC, la entrada todav\u00eda se us\u00f3 despu\u00e9s de ser liberado. M\u00e1s precisamente, el video de mac_entry se us\u00f3 despu\u00e9s de llamar a devm_kfree en mac_entry. La soluci\u00f3n consiste en utilizar primero el vid de mac_entry para eliminar la entrada del HW y luego liberarla."
    }
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  "id": "CVE-2024-26856",
  "lastModified": "2025-03-04T15:39:10.917",
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-04-17T11:15:08.740",
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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.
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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.



Detection rules are retrieved from Rulezet.