SUSE-RU-2026:21783-1

Vulnerability from csaf_suse - Published: 2026-05-18 11:40 - Updated: 2026-09-21 16:20
Summary
Recommended update for the Linux Kernel
Severity
Important
Notes
Title of the patch: Recommended update for the Linux Kernel
Description of the patch: The SUSE Linux Enterprise 16.0 kernel was updated to fix one issue The following non security issue was fixed: - CVE-2026-46333: Fixed logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308).
Patchnames: SUSE-SLES-HA-16.0-780
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-46333
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.x86_64 —
Vendor Fix
Threats
Impact important
References
To clipboard 

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  "vulnerabilities": [
    {
      "cve": "CVE-2026-46333",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-46333"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nptrace: slightly saner \u0027get_dumpable()\u0027 logic\n\nThe \u0027dumpability\u0027 of a task is fundamentally about the memory image of\nthe task - the concept comes from whether it can core dump or not - and\nmakes no sense when you don\u0027t have an associated mm.\n\nAnd almost all users do in fact use it only for the case where the task\nhas a mm pointer.\n\nBut we have one odd special case: ptrace_may_access() uses \u0027dumpable\u0027 to\ncheck various other things entirely independently of the MM (typically\nexplicitly using flags like PTRACE_MODE_READ_FSCREDS).  Including for\nthreads that no longer have a VM (and maybe never did, like most kernel\nthreads).\n\nIt\u0027s not what this flag was designed for, but it is what it is.\n\nThe ptrace code does check that the uid/gid matches, so you do have to\nbe uid-0 to see kernel thread details, but this means that the\ntraditional \"drop capabilities\" model doesn\u0027t make any difference for\nthis all.\n\nMake it all make a *bit* more sense by saying that if you don\u0027t have a\nMM pointer, we\u0027ll use a cached \"last dumpability\" flag if the thread\never had a MM (it will be zero for kernel threads since it is never\nset), and require a proper CAP_SYS_PTRACE capability to override.",
          "title": "CVE description"
        }
      ],
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          "summary": "CVE-2026-46333",
          "url": "https://www.suse.com/security/cve/CVE-2026-46333"
        },
        {
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          "summary": "SUSE Bug 1265308 for CVE-2026-46333",
          "url": "https://bugzilla.suse.com/1265308"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265384 for CVE-2026-46333",
          "url": "https://bugzilla.suse.com/1265384"
        }
      ],
      "remediations": [
        {
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            "SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.x86_64",
            "SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.ppc64le",
            "SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.s390x",
            "SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.x86_64",
            "SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.ppc64le",
            "SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.s390x",
            "SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.ppc64le",
            "SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.s390x",
            "SUSE Linux Enterprise High Availability Extension 16.0:cluster-md-kmp-default-0:6.12.0-160000.32.1.x86_64",
            "SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.ppc64le",
            "SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.s390x",
            "SUSE Linux Enterprise High Availability Extension 16.0:dlm-kmp-default-0:6.12.0-160000.32.1.x86_64",
            "SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.ppc64le",
            "SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.s390x",
            "SUSE Linux Enterprise High Availability Extension 16.0:gfs2-kmp-default-0:6.12.0-160000.32.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-18T11:40:46Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-46333"
    }
  ]
}



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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.


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.