CVE-2026-43125 (GCVE-0-2026-43125)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-08-20 12:31
VLAI
Title
dlm: validate length in dlm_search_rsb_tree
Summary
In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree(). Add length validation to prevent potential buffer overflow.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-130 - Improper Handling of Length Parameter Inconsistency
Assigner
References
URL Tags
https://git.kernel.org/stable/c/67288113c5e6cf9e6…
https://git.kernel.org/stable/c/082083c9fbd99422a…
https://git.kernel.org/stable/c/5f053a2e7209d326c…
https://git.kernel.org/stable/c/080e5563f878c64e6…
https://access.redhat.com/security/cve/CVE-2026-43125 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2467234 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:35844 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:41236 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34095 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:36767 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34094 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25217 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25121 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55762 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33899 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:35863 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55761 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55837 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56224 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:56225 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:55763 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:25120 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:33900 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7210cb7a72a22303cdb225bd1aea28697a17bbae , < 67288113c5e6cf9e659b4065c0ed6f16100e0c71 (git)
Affected: 7210cb7a72a22303cdb225bd1aea28697a17bbae , < 082083c9fbd99422a0370fe2102144a231c9f5d6 (git)
Affected: 7210cb7a72a22303cdb225bd1aea28697a17bbae , < 5f053a2e7209d326cbbc07738fa6d6893d307438 (git)
Affected: 7210cb7a72a22303cdb225bd1aea28697a17bbae , < 080e5563f878c64e697b89e7439d730d0daad882 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.4
Unaffected: 0 , < 3.4 (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.10.0-1160.155.1.rt56.1307.el7 , < * (rpm)
    cpe:/a:redhat:rhel_extras_rt_els:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:3.10.0-1160.154.1.el7 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.132.1.rt7.473.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:4.18.0-553.132.1.el8_10 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 0:4.18.0-372.198.1.el8_6 , < * (rpm)
    cpe:/o:redhat:rhel_aus:8.6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Unaffected: 0:4.18.0-372.198.1.el8_6 , < * (rpm)
    cpe:/o:redhat:rhel_eus_long_life:8.6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 0:4.18.0-477.150.1.el8_8 , < * (rpm)
    cpe:/o:redhat:rhel_tus:8.8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 0:4.18.0-477.150.1.el8_8 , < * (rpm)
    cpe:/o:redhat:rhel_e4s:8.8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:8.8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:5.14.0-687.15.1.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9
    cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:5.14.0-284.178.1.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:5.14.0-284.178.1.rt14.463.el9_2 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.2::nfv
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:9.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:5.14.0-427.136.1.el9_4 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.4
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions     cpe:/o:redhat:rhel_e4s:9.4
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:5.14.0-570.125.1.el9_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support     cpe:/o:redhat:rhel_eus:9.6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:rhel_extras_rt_els:7"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:3.10.0-1160.155.1.rt56.1307.el7",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_els:7"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 7 Extended Lifecycle Support",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:3.10.0-1160.154.1.el7",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:8::nfv"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-553.132.1.rt7.473.el8_10",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-553.132.1.el8_10",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_aus:8.6"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-372.198.1.el8_6",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_eus_long_life:8.6"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-372.198.1.el8_6",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_tus:8.8"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-477.150.1.el8_8",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:8.8"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:4.18.0-477.150.1.el8_8",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:8.8"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:enterprise_linux:9",
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:5.14.0-687.15.1.el9_8",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:9.2"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:5.14.0-284.178.1.el9_2",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:9.2::nfv"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:5.14.0-284.178.1.rt14.463.el9_2",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:9.2"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:rhel_e4s:9.4"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:5.14.0-427.136.1.el9_4",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_e4s:9.4"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/a:redhat:rhel_eus:9.6"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
            "vendor": "Red Hat",
            "versions": [
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "0:5.14.0-570.125.1.el9_6",
                "versionType": "rpm"
              }
            ]
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:rhel_eus:9.6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kpatch-patch",
            "product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10"
            ],
            "defaultStatus": "unaffected",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "unknown",
            "packageName": "kernel",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "affected",
            "packageName": "kernel-rt",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-05-06T00:00:00.000Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in the Linux kernel\u0027s Distributed Lock Manager (dlm) module. An attacker could send specially crafted network messages with an oversized length parameter to the dlm_dump_rsb_name() function. This lack of validation can lead to an out-of-bounds write in the dlm_search_rsb_tree() function, potentially causing a buffer overflow. This vulnerability could allow for denial of service or, in some cases, arbitrary code execution."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-130",
                "description": "Improper Handling of Length Parameter Inconsistency",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-20T12:31:55.345Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-43125"
          },
          {
            "name": "RHBZ#2467234",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467234"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43125.json"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:35844"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:41236"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:34095"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:36767"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:34094"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:25217"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:25121"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:55762"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33899"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:35863"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:55761"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:55837"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:56224"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:56225"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:55763"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:25120"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2026:33900"
          }
        ],
        "solutions": [
          {
            "lang": "en",
            "value": "RHSA-2026:35844: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:41236: Red Hat Enterprise Linux for Real Time (v. 7 ELS)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:34095: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux BaseOS E4S (v.9.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:36767: Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux BaseOS E4S (v.9.4), Red Hat Enterprise Linux Real Time E4S (v.9.4), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:34094: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6), Red Hat Enterprise Linux BaseOS EUS (v.9.6), Red Hat Enterprise Linux Real Time EUS (v.9.6), Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:25217: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:25121: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:55762: Red Hat Enterprise Linux BaseOS (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33899: Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:35863: Red Hat Enterprise Linux BaseOS E4S (v.8.8), Red Hat Enterprise Linux BaseOS TUS (v.8.8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:55761: Red Hat Enterprise Linux BaseOS E4S (v.8.8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:55837: Red Hat Enterprise Linux BaseOS E4S (v.9.2)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:56224: Red Hat Enterprise Linux BaseOS E4S (v.9.4)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:56225: Red Hat Enterprise Linux BaseOS EUS (v.9.6)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:55763: Red Hat Enterprise Linux BaseOS (v. 9)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:25120: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)"
          },
          {
            "lang": "en",
            "value": "RHSA-2026:33900: Red Hat Enterprise Linux Real Time E4S (v.9.2), Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-05-06T00:00:00.000Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-05-06T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "kernel: dlm: validate length in dlm_search_rsb_tree",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/dlm/lock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "67288113c5e6cf9e659b4065c0ed6f16100e0c71",
              "status": "affected",
              "version": "7210cb7a72a22303cdb225bd1aea28697a17bbae",
              "versionType": "git"
            },
            {
              "lessThan": "082083c9fbd99422a0370fe2102144a231c9f5d6",
              "status": "affected",
              "version": "7210cb7a72a22303cdb225bd1aea28697a17bbae",
              "versionType": "git"
            },
            {
              "lessThan": "5f053a2e7209d326cbbc07738fa6d6893d307438",
              "status": "affected",
              "version": "7210cb7a72a22303cdb225bd1aea28697a17bbae",
              "versionType": "git"
            },
            {
              "lessThan": "080e5563f878c64e697b89e7439d730d0daad882",
              "status": "affected",
              "version": "7210cb7a72a22303cdb225bd1aea28697a17bbae",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/dlm/lock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.4"
            },
            {
              "lessThan": "3.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.75",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.16",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.6",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndlm: validate length in dlm_search_rsb_tree\n\nThe len parameter in dlm_dump_rsb_name() is not validated and comes\nfrom network messages. When it exceeds DLM_RESNAME_MAXLEN, it can\ncause out-of-bounds write in dlm_search_rsb_tree().\n\nAdd length validation to prevent potential buffer overflow."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable path is reached by DLM recovery messages received over the kernel DLM TCP/SCTP lowcomms transport from a remote cluster peer. Although the peer address must match configured cluster membership, the bug is triggered by network protocol data delivered to the target kernel.\nAC:L - A remote peer that can send DLM recovery traffic controls the malformed RCOM_LOOKUP packet, including the special debug rc_id and oversized length/name payload. The recovery-state gate is a normal DLM condition that a participating peer can plausibly induce or target, so exploitation does not depend on conditions outside attacker control.\nPR:N - The vulnerable receive path does not require credentials or privileges on the target system before parsing the packet. Cluster peer/source-address admission is not a privilege on the vulnerable host, and there is no DLM authentication check before the oversized name reaches the copy.\nUI:N - No victim user action is required once the target DLM lockspace is active and receiving cluster traffic. The attacker sends the malformed recovery message directly.\nS:U - The impact is compromise or crash of the target kernel within the same security authority. This is not a VM escape, IOMMU bypass, or other cross-scope boundary.\nC:H - The bug is a network-controlled stack buffer overflow in the kernel, copying up to socket-buffer-sized attacker data into a 64-byte resource-name key. Such memory corruption is defensibly exploitable for kernel information disclosure as part of code execution or memory disclosure primitives.\nI:H - The oversized memcpy can corrupt the kernel stack, including control data, from attacker-controlled network bytes. This supports arbitrary kernel memory modification or code execution in the highest reasonable scenario.\nA:H - Even without reliable code execution, the stack overflow can corrupt kernel control state and readily crash or panic the system. The malformed packet can be sent remotely whenever the vulnerable DLM receive path is reachable."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:26:06.027Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71"
        },
        {
          "url": "https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438"
        },
        {
          "url": "https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882"
        }
      ],
      "title": "dlm: validate length in dlm_search_rsb_tree",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43125",
    "datePublished": "2026-05-06T11:27:10.903Z",
    "dateReserved": "2026-05-01T14:12:55.988Z",
    "dateUpdated": "2026-08-20T12:31:55.345Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-43125",
      "date": "2026-08-23",
      "epss": "0.00426",
      "percentile": "0.35772"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-10T14:43:17.000Z",
      "cve": "CVE-2026-43125",
      "id": "msrc_CVE-2026-43125",
      "initial_release_date": "2026-05-07T01:04:05.000Z",
      "product_status:known_affected": "8",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "dlm: validate length in dlm_search_rsb_tree",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-43125.json",
      "version": "11"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43125\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-06T12:16:29.450\",\"lastModified\":\"2026-08-20T13:18:35.400\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndlm: validate length in dlm_search_rsb_tree\\n\\nThe len parameter in dlm_dump_rsb_name() is not validated and comes\\nfrom network messages. When it exceeds DLM_RESNAME_MAXLEN, it can\\ncause out-of-bounds write in dlm_search_rsb_tree().\\n\\nAdd length validation to prevent potential buffer overflow.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"fs/dlm/lock.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"7210cb7a72a22303cdb225bd1aea28697a17bbae\",\"lessThan\":\"67288113c5e6cf9e659b4065c0ed6f16100e0c71\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7210cb7a72a22303cdb225bd1aea28697a17bbae\",\"lessThan\":\"082083c9fbd99422a0370fe2102144a231c9f5d6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7210cb7a72a22303cdb225bd1aea28697a17bbae\",\"lessThan\":\"5f053a2e7209d326cbbc07738fa6d6893d307438\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"7210cb7a72a22303cdb225bd1aea28697a17bbae\",\"lessThan\":\"080e5563f878c64e697b89e7439d730d0daad882\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"fs/dlm/lock.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.75\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.16\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.6\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"affectedData\":[{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 7 Extended Lifecycle Support\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel-rt\",\"cpes\":[\"cpe:/a:redhat:rhel_extras_rt_els:7\"],\"versions\":[{\"version\":\"0:3.10.0-1160.155.1.rt56.1307.el7\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 7 Extended Lifecycle Support\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:rhel_els:7\"],\"versions\":[{\"version\":\"0:3.10.0-1160.154.1.el7\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel-rt\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:8::nfv\"],\"versions\":[{\"version\":\"0:4.18.0-553.132.1.rt7.473.el8_10\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8\"],\"versions\":[{\"version\":\"0:4.18.0-553.132.1.el8_10\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kpatch-patch\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:rhel_aus:8.6\"],\"versions\":[{\"version\":\"0:4.18.0-372.198.1.el8_6\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:rhel_eus_long_life:8.6\"],\"versions\":[{\"version\":\"0:4.18.0-372.198.1.el8_6\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8.8 Telecommunications Update Service\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:rhel_tus:8.8\"],\"versions\":[{\"version\":\"0:4.18.0-477.150.1.el8_8\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:8.8\"],\"versions\":[{\"version\":\"0:4.18.0-477.150.1.el8_8\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kpatch-patch\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:8.8\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/a:redhat:enterprise_linux:9\",\"cpe:/o:redhat:enterprise_linux:9\"],\"versions\":[{\"version\":\"0:5.14.0-687.15.1.el9_8\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kpatch-patch\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:9\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:9.2\"],\"versions\":[{\"version\":\"0:5.14.0-284.178.1.el9_2\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel-rt\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:9.2::nfv\"],\"versions\":[{\"version\":\"0:5.14.0-284.178.1.rt14.463.el9_2\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kpatch-patch\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:9.2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/a:redhat:rhel_e4s:9.4\"],\"versions\":[{\"version\":\"0:5.14.0-427.136.1.el9_4\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kpatch-patch\",\"cpes\":[\"cpe:/o:redhat:rhel_e4s:9.4\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.6 Extended Update Support\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/a:redhat:rhel_eus:9.6\"],\"versions\":[{\"version\":\"0:5.14.0-570.125.1.el9_6\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9.6 Extended Update Support\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kpatch-patch\",\"cpes\":[\"cpe:/o:redhat:rhel_eus:9.6\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 10\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:10\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 6\",\"defaultStatus\":\"unknown\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:6\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"kernel-rt\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:9\"]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-130\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.4\",\"versionEndExcluding\":\"6.12.75\",\"matchCriteriaId\":\"29152BBE-96F9-4D35-A99C-E61CF2C0DDEB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.16\",\"matchCriteriaId\":\"B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.6\",\"matchCriteriaId\":\"373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:25120\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:25121\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:25217\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:33899\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:33900\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:34094\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:34095\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:35844\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:35863\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:36767\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:41236\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:55761\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:55762\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:55763\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:55837\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:56224\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:56225\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2026-43125\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2467234\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43125.json\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-08-19T20:19:15+00:00",
      "cve": "CVE-2026-43125",
      "id": "CVE-2026-43125",
      "initial_release_date": "2026-05-06T00:00:00+00:00",
      "product_status:fixed": "1601",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "76",
      "product_status:under_investigation": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dlm: validate length in dlm_search_rsb_tree",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43125.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.