Vulnerability-Lookup

EUVD-2026-345705

European Vulnerability Database identifier assigned by ENISA

Reserved

2026-10-02 08:04

Assigner

ENISA

Alias of

a CVE record, shown under related vulnerabilities. This identifier carries no description, severity or references of its own: they belong to that CVE.

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{
  "assigner": "ENISA",
  "date_reserved": "2026-10-02T08:04:01.960790+00:00",
  "id": "EUVD-2026-345705"
}

CVE-2024-35910 (GCVE-0-2024-35910)

Vulnerability from cvelistv5 – Published: 2024-05-19 08:35 – Updated: 2026-08-05 11:30

Title

tcp: properly terminate timers for kernel sockets

Summary

In the Linux kernel, the following vulnerability has been resolved: tcp: properly terminate timers for kernel sockets We had various syzbot reports about tcp timers firing after the corresponding netns has been dismantled. Fortunately Josef Bacik could trigger the issue more often, and could test a patch I wrote two years ago. When TCP sockets are closed, we call inet_csk_clear_xmit_timers() to 'stop' the timers. inet_csk_clear_xmit_timers() can be called from any context, including when socket lock is held. This is the reason it uses sk_stop_timer(), aka del_timer(). This means that ongoing timers might finish much later. For user sockets, this is fine because each running timer holds a reference on the socket, and the user socket holds a reference on the netns. For kernel sockets, we risk that the netns is freed before timer can complete, because kernel sockets do not hold reference on the netns. This patch adds inet_csk_clear_xmit_timers_sync() function that using sk_stop_timer_sync() to make sure all timers are terminated before the kernel socket is released. Modules using kernel sockets close them in their netns exit() handler. Also add sock_not_owned_by_me() helper to get LOCKDEP support : inet_csk_clear_xmit_timers_sync() must not be called while socket lock is held. It is very possible we can revert in the future commit 3a58f13a881e ("net: rds: acquire refcount on TCP sockets") which attempted to solve the issue in rds only. (net/smc/af_smc.c and net/mptcp/subflow.c have similar code) We probably can remove the check_net() tests from tcp_out_of_resources() and __tcp_close() in the future.

Severity

7.8 (High)


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

5.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-29 18:25 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux mitre root Scorecard

References

12 references

URL	Tags
https://git.kernel.org/stable/c/93f0133b9d589cc6e…
https://git.kernel.org/stable/c/44e62f5d356786867…
https://git.kernel.org/stable/c/e3e27d2b446deb1f6…
https://git.kernel.org/stable/c/2e43d8eba6edd1cf0…
https://git.kernel.org/stable/c/91b243de910a9ac84…
https://git.kernel.org/stable/c/c1ae4d1e76eacddaa…
https://git.kernel.org/stable/c/899265c1389fe0228…
https://git.kernel.org/stable/c/151c9c724d05d5b0d…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://cert-portal.siemens.com/productcert/html/…
https://cert-portal.siemens.com/productcert/html/…

Impacted products

6 products

Vendor	Product	Version
Linux	Linux	Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < 93f0133b9d589cc6e865f254ad9be3e9d8133f50 (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < 44e62f5d35678686734afd47c6a421ad30772e7f (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < e3e27d2b446deb1f643758a0c4731f5c22492810 (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < 2e43d8eba6edd1cf05a3a20fdd77688fa7ec16a4 (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < 91b243de910a9ac8476d40238ab3dbfeedd5b7de (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < c1ae4d1e76eacddaacb958b67cd942082f800c87 (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < 899265c1389fe022802aae73dbf13ee08837a35a (git) Affected: 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe , < 151c9c724d05d5b0dd8acd3e11cb69ef1f2dbada (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 4.19.312 , ≤ 4.19.* (semver) Unaffected: 5.4.274 , ≤ 5.4.* (semver) Unaffected: 5.10.215 , ≤ 5.10.* (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.85 , ≤ 6.1.* (semver) Unaffected: 6.6.26 , ≤ 6.6.* (semver) Unaffected: 6.8.5 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)
Siemens	SIMATIC S7-1500 TM MFP - GNU/Linux subsystem	Affected: 0 , < * (custom)
Siemens	SIMATIC S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)
Siemens	SIPLUS S7-1500 CPU 1518-4 PN/DP MFP	Affected: V3.1.0 , < V3.1.5 (custom)

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
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          }
        ],
        "x_adpType": "supplier"
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        },
        {
          "url": "https://git.kernel.org/stable/c/2e43d8eba6edd1cf05a3a20fdd77688fa7ec16a4"
        },
        {
          "url": "https://git.kernel.org/stable/c/91b243de910a9ac8476d40238ab3dbfeedd5b7de"
        },
        {
          "url": "https://git.kernel.org/stable/c/c1ae4d1e76eacddaacb958b67cd942082f800c87"
        },
        {
          "url": "https://git.kernel.org/stable/c/899265c1389fe022802aae73dbf13ee08837a35a"
        },
        {
          "url": "https://git.kernel.org/stable/c/151c9c724d05d5b0dd8acd3e11cb69ef1f2dbada"
        }
      ],
      "title": "tcp: properly terminate timers for kernel sockets",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-35910",
    "datePublished": "2024-05-19T08:35:03.287Z",
    "dateReserved": "2024-05-17T13:50:33.121Z",
    "dateUpdated": "2026-08-05T11:30:54.229Z",
    "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.

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.

Action not permitted

EUVD-2026-345705

CVE-2024-35910 (GCVE-0-2024-35910)

Tags

Sightings

Nomenclature

Related by attack behaviour