CVE-2024-36978 (GCVE-0-2024-36978)

Vulnerability from cvelistv5 – Published: 2024-06-19 06:20 – Updated: 2026-11-04 16:46
VLAI
Title
net: sched: sch_multiq: fix possible OOB write in multiq_tune()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: sched: sch_multiq: fix possible OOB write in multiq_tune() q->bands will be assigned to qopt->bands to execute subsequent code logic after kmalloc. So the old q->bands should not be used in kmalloc. Otherwise, an out-of-bounds write will occur.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-22 04:55 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6641 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < d5d9d241786f49ae7cbc08e7fc95a115e9d80f3d (git)
Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < 52b1aa07cda6a199cd6754d3798c7759023bc70f (git)
Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < 598572c64287aee0b75bbba4e2881496878860f3 (git)
Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < 0f208fad86631e005754606c3ec80c0d44a11882 (git)
Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < 54c2c171c11a798fe887b3ff72922aa9d1411c1e (git)
Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < d6fb5110e8722bc00748f22caeb650fe4672f129 (git)
Affected: c2999f7fb05b87da4060e38150c70fa46794d82b , < affc18fdc694190ca7575b9a86632a73b9fe043d (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.279 , ≤ 5.4.* (semver)
Unaffected: 5.10.221 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.95 , ≤ 6.1.* (semver)
Unaffected: 6.6.35 , ≤ 6.6.* (semver)
Unaffected: 6.9.6 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.1 (custom)
guessed Create a notification for this product.
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Unaffected: 0 , < * (custom)
guessed Create a notification for this product.
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.1 (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < V1.1.1 (custom)
guessed Create a notification for this product.
Show details on NVD website
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                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:L - The vulnerable path is reached through the tc/qdisc RTNETLINK interface plus ethtool channel configuration, both local syscall/netlink operations rather than remote network input.\nAC:L - The attacker fully controls every condition (device tx-queue counts, band configuration, tune ordering) under rtnl_lock with no race, making the overflow reliably triggerable.\nPR:L - The path requires CAP_NET_ADMIN, but this is obtainable by an unprivileged user via user+network namespaces (unshare -Urn), where a multiqueue veth can be created and reconfigured, so only low privileges are truly needed.\nUI:N - The entire sequence is performed by the attacker alone; no victim action is required.\nS:U - The corruption stays within the kernel\u0027s own security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The heap out-of-bounds write corrupts adjacent kernel objects and can be leveraged to build read primitives and disclose kernel memory, per the memory-corruption guidance.\nI:H - The bug is a controlled out-of-bounds heap write of pointer-sized values, a classic primitive for arbitrary write and control-flow hijacking.\nA:H - The OOB write corrupts the kernel heap and reliably causes oops/panic, giving high availability impact."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T11:32:27.525Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/d5d9d241786f49ae7cbc08e7fc95a115e9d80f3d"
            },
            {
              "url": "https://git.kernel.org/stable/c/52b1aa07cda6a199cd6754d3798c7759023bc70f"
            },
            {
              "url": "https://git.kernel.org/stable/c/598572c64287aee0b75bbba4e2881496878860f3"
            },
            {
              "url": "https://git.kernel.org/stable/c/0f208fad86631e005754606c3ec80c0d44a11882"
            },
            {
              "url": "https://git.kernel.org/stable/c/54c2c171c11a798fe887b3ff72922aa9d1411c1e"
            },
            {
              "url": "https://git.kernel.org/stable/c/d6fb5110e8722bc00748f22caeb650fe4672f129"
            },
            {
              "url": "https://git.kernel.org/stable/c/affc18fdc694190ca7575b9a86632a73b9fe043d"
            }
          ],
          "title": "net: sched: sch_multiq: fix possible OOB write in multiq_tune()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-36978",
        "datePublished": "2024-06-19T06:20:23.103Z",
        "dateReserved": "2024-05-30T15:25:07.082Z",
        "dateUpdated": "2026-11-04T16:46:22.253Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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