Vulnerability-Lookup

GHSA-G32C-GVPP-QQG5

Vulnerability from github – Published: 2024-12-27 15:31 – Updated: 2025-10-08 15:32

Details

In the Linux kernel, the following vulnerability has been resolved:

netlink: fix false positive warning in extack during dumps

Commit under fixes extended extack reporting to dumps. It works under normal conditions, because extack errors are usually reported during ->start() or the first ->dump(), it's quite rare that the dump starts okay but fails later. If the dump does fail later, however, the input skb will already have the initiating message pulled, so checking if bad attr falls within skb->data will fail.

Switch the check to using nlh, which is always valid.

syzbot found a way to hit that scenario by filling up the receive queue. In this case we initiate a dump but don't call ->dump() until there is read space for an skb.

WARNING: CPU: 1 PID: 5845 at net/netlink/af_netlink.c:2210 netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209 RIP: 0010:netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209 Call Trace: netlink_dump_done+0x513/0x970 net/netlink/af_netlink.c:2250 netlink_dump+0x91f/0xe10 net/netlink/af_netlink.c:2351 netlink_recvmsg+0x6bb/0x11d0 net/netlink/af_netlink.c:1983 sock_recvmsg_nosec net/socket.c:1051 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1073 __sys_recvfrom+0x246/0x3d0 net/socket.c:2267 __do_sys_recvfrom net/socket.c:2285 [inline] __se_sys_recvfrom net/socket.c:2281 [inline] __x64_sys_recvfrom+0xde/0x100 net/socket.c:2281 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff37dd17a79

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53212"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T14:15:29Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: fix false positive warning in extack during dumps\n\nCommit under fixes extended extack reporting to dumps.\nIt works under normal conditions, because extack errors are\nusually reported during -\u003estart() or the first -\u003edump(),\nit\u0027s quite rare that the dump starts okay but fails later.\nIf the dump does fail later, however, the input skb will\nalready have the initiating message pulled, so checking\nif bad attr falls within skb-\u003edata will fail.\n\nSwitch the check to using nlh, which is always valid.\n\nsyzbot found a way to hit that scenario by filling up\nthe receive queue. In this case we initiate a dump\nbut don\u0027t call -\u003edump() until there is read space for\nan skb.\n\nWARNING: CPU: 1 PID: 5845 at net/netlink/af_netlink.c:2210 netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209\nRIP: 0010:netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209\nCall Trace:\n \u003cTASK\u003e\n netlink_dump_done+0x513/0x970 net/netlink/af_netlink.c:2250\n netlink_dump+0x91f/0xe10 net/netlink/af_netlink.c:2351\n netlink_recvmsg+0x6bb/0x11d0 net/netlink/af_netlink.c:1983\n sock_recvmsg_nosec net/socket.c:1051 [inline]\n sock_recvmsg+0x22f/0x280 net/socket.c:1073\n __sys_recvfrom+0x246/0x3d0 net/socket.c:2267\n __do_sys_recvfrom net/socket.c:2285 [inline]\n __se_sys_recvfrom net/socket.c:2281 [inline]\n __x64_sys_recvfrom+0xde/0x100 net/socket.c:2281\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7ff37dd17a79",
  "id": "GHSA-g32c-gvpp-qqg5",
  "modified": "2025-10-08T15:32:25Z",
  "published": "2024-12-27T15:31:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53212"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28af028a71371df5fcbf807fd4444bba8d0c33cc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3bf39fa849ab8ed52abb6715922e6102d3df9f97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6406d0ce0414b807af5d2a4b781c3f3ee52b8a4d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-53212 (GCVE-0-2024-53212)

Vulnerability from cvelistv5 – Published: 2024-12-27 13:49 – Updated: 2026-05-11 20:53

Title

netlink: fix false positive warning in extack during dumps

Summary

In the Linux kernel, the following vulnerability has been resolved: netlink: fix false positive warning in extack during dumps Commit under fixes extended extack reporting to dumps. It works under normal conditions, because extack errors are usually reported during ->start() or the first ->dump(), it's quite rare that the dump starts okay but fails later. If the dump does fail later, however, the input skb will already have the initiating message pulled, so checking if bad attr falls within skb->data will fail. Switch the check to using nlh, which is always valid. syzbot found a way to hit that scenario by filling up the receive queue. In this case we initiate a dump but don't call ->dump() until there is read space for an skb. WARNING: CPU: 1 PID: 5845 at net/netlink/af_netlink.c:2210 netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209 RIP: 0010:netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209 Call Trace: <TASK> netlink_dump_done+0x513/0x970 net/netlink/af_netlink.c:2250 netlink_dump+0x91f/0xe10 net/netlink/af_netlink.c:2351 netlink_recvmsg+0x6bb/0x11d0 net/netlink/af_netlink.c:1983 sock_recvmsg_nosec net/socket.c:1051 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1073 __sys_recvfrom+0x246/0x3d0 net/socket.c:2267 __do_sys_recvfrom net/socket.c:2285 [inline] __se_sys_recvfrom net/socket.c:2281 [inline] __x64_sys_recvfrom+0xde/0x100 net/socket.c:2281 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff37dd17a79

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6643 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6406d0ce0414b807a…
https://git.kernel.org/stable/c/28af028a71371df5f…
https://git.kernel.org/stable/c/3bf39fa849ab8ed52…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8af4f60472fce1f22db5068107b37bcc1a65eabd , < 6406d0ce0414b807af5d2a4b781c3f3ee52b8a4d (git) Affected: 8af4f60472fce1f22db5068107b37bcc1a65eabd , < 28af028a71371df5fcbf807fd4444bba8d0c33cc (git) Affected: 8af4f60472fce1f22db5068107b37bcc1a65eabd , < 3bf39fa849ab8ed52abb6715922e6102d3df9f97 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.11.11 , ≤ 6.11.* (semver) Unaffected: 6.12.2 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netlink/af_netlink.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6406d0ce0414b807af5d2a4b781c3f3ee52b8a4d",
              "status": "affected",
              "version": "8af4f60472fce1f22db5068107b37bcc1a65eabd",
              "versionType": "git"
            },
            {
              "lessThan": "28af028a71371df5fcbf807fd4444bba8d0c33cc",
              "status": "affected",
              "version": "8af4f60472fce1f22db5068107b37bcc1a65eabd",
              "versionType": "git"
            },
            {
              "lessThan": "3bf39fa849ab8ed52abb6715922e6102d3df9f97",
              "status": "affected",
              "version": "8af4f60472fce1f22db5068107b37bcc1a65eabd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netlink/af_netlink.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11.11",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.2",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetlink: fix false positive warning in extack during dumps\n\nCommit under fixes extended extack reporting to dumps.\nIt works under normal conditions, because extack errors are\nusually reported during -\u003estart() or the first -\u003edump(),\nit\u0027s quite rare that the dump starts okay but fails later.\nIf the dump does fail later, however, the input skb will\nalready have the initiating message pulled, so checking\nif bad attr falls within skb-\u003edata will fail.\n\nSwitch the check to using nlh, which is always valid.\n\nsyzbot found a way to hit that scenario by filling up\nthe receive queue. In this case we initiate a dump\nbut don\u0027t call -\u003edump() until there is read space for\nan skb.\n\nWARNING: CPU: 1 PID: 5845 at net/netlink/af_netlink.c:2210 netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209\nRIP: 0010:netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209\nCall Trace:\n \u003cTASK\u003e\n netlink_dump_done+0x513/0x970 net/netlink/af_netlink.c:2250\n netlink_dump+0x91f/0xe10 net/netlink/af_netlink.c:2351\n netlink_recvmsg+0x6bb/0x11d0 net/netlink/af_netlink.c:1983\n sock_recvmsg_nosec net/socket.c:1051 [inline]\n sock_recvmsg+0x22f/0x280 net/socket.c:1073\n __sys_recvfrom+0x246/0x3d0 net/socket.c:2267\n __do_sys_recvfrom net/socket.c:2285 [inline]\n __se_sys_recvfrom net/socket.c:2281 [inline]\n __x64_sys_recvfrom+0xde/0x100 net/socket.c:2281\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7ff37dd17a79"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:53:00.803Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/6406d0ce0414b807af5d2a4b781c3f3ee52b8a4d"
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          "url": "https://git.kernel.org/stable/c/28af028a71371df5fcbf807fd4444bba8d0c33cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/3bf39fa849ab8ed52abb6715922e6102d3df9f97"
        }
      ],
      "title": "netlink: fix false positive warning in extack during dumps",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53212",
    "datePublished": "2024-12-27T13:49:57.904Z",
    "dateReserved": "2024-11-19T17:17:25.021Z",
    "dateUpdated": "2026-05-11T20:53:00.803Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

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