CVE-2023-53590 (GCVE-0-2023-53590)

Vulnerability from cvelistv5 – Published: 2025-10-04 15:44 – Updated: 2026-05-23 15:29
VLAI
Title
sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop
Summary
In the Linux kernel, the following vulnerability has been resolved: sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop With this refcnt added in sctp_stream_priorities, we don't need to traverse all streams to check if the prio is used by other streams when freeing one stream's prio in sctp_sched_prio_free_sid(). This can avoid a nested loop (up to 65535 * 65535), which may cause a stuck as Ying reported: watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [ksoftirqd/23:136] Call Trace: <TASK> sctp_sched_prio_free_sid+0xab/0x100 [sctp] sctp_stream_free_ext+0x64/0xa0 [sctp] sctp_stream_free+0x31/0x50 [sctp] sctp_association_free+0xa5/0x200 [sctp] Note that it doesn't need to use refcount_t type for this counter, as its accessing is always protected under the sock lock. v1->v2: - add a check in sctp_sched_prio_set to avoid the possible prio_head refcnt overflow.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: a7555681e50bdebed2c40ff7404ee73c2e932993 , < cec326443f01283ef68ea00c06ea073b1835a562 (git)
Affected: 176ee6c673ccd118e9392fd2dbb165423bdb99ca , < 8ee401f89cdb10f39098c0656d695b2bc4052100 (git)
Affected: 0dfb9a566327182387c90100ea54d8426cee8c67 , < bf5540cbd20e2dae2c81ab9b31deef41ef147d0a (git)
Affected: 9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9 , < 03c3a5584a0a29821e59b7834635ce823050caaa (git)
Affected: 9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9 , < 6d529928ea212127851a2df8c40d822237ca946b (git)
Affected: 9ed7bfc79542119ac0a9e1ce8a2a5285e43433e9 , < 68ba44639537de6f91fe32783766322d41848127 (git)
Affected: fa20f88271259d42ebe66f0a8c4c20199e888c99 (git)
Affected: 5.4.226 , < 5.4.235 (semver)
Affected: 5.10.158 , < 5.10.173 (semver)
Affected: 5.15.82 , < 5.15.100 (semver)
Affected: 6.0.12 , < 6.1 (semver)
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Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 5.4.235 , ≤ 5.4.* (semver)
Unaffected: 5.10.173 , ≤ 5.10.* (semver)
Unaffected: 5.15.100 , ≤ 5.15.* (semver)
Unaffected: 6.1.18 , ≤ 6.1.* (semver)
Unaffected: 6.2.5 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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            "url": "https://git.kernel.org/stable/c/cec326443f01283ef68ea00c06ea073b1835a562"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-667"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T22:29:06+00:00",
      "cve": "CVE-2023-53590",
      "id": "CVE-2023-53590",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: sctp: add a refcnt in sctp_stream_priorities to avoid a nested loop",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-53590.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2026-08-31T00:57:16Z",
      "cve": "CVE-2023-53590",
      "id": "CVE-2023-53590",
      "initial_release_date": "2025-10-05T02:55:50Z",
      "product_status:known_not_affected": "523",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2023-53590",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-53590.json",
      "version": "9"
    }
  }
}



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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

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.



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.