SUSE-SU-2026:2133-1

Vulnerability from csaf_suse - Published: 2026-05-29 21:35 - Updated: 2026-05-29 21:35
Summary
Security update for the Linux Kernel RT (Live Patch 11 for SUSE Linux Enterprise 15 SP7)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel RT (Live Patch 11 for SUSE Linux Enterprise 15 SP7)
Description of the patch: This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.37 fixes various security issues The following security issues were fixed: - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096). - CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224). - CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).
Patchnames: SUSE-2026-2133,SUSE-SLE-Module-Live-Patching-15-SP7-2026-2133
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-2025-54518
7.4 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2026-46300
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64 —
Vendor Fix
Threats
Impact important
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 Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64 —
Vendor Fix
Threats
Impact important
References
To clipboard 

{
  "document": {
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      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    "notes": [
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        "text": "Security update for the Linux Kernel RT (Live Patch 11 for SUSE Linux Enterprise 15 SP7)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "\nThis update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.37 fixes various security issues\n\nThe following security issues were fixed:\n\n- CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096).\n- CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224).\n- CVE-2026-46333: ptrace: slightly saner \u0027get_dumpable()\u0027 logic (bsc#1265384).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2026-2133,SUSE-SLE-Module-Live-Patching-15-SP7-2026-2133",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_2133-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2026:2133-1",
        "url": "https://www.suse.com/support/update/announcement/2026/suse-su-20262133-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2026:2133-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2026-June/046892.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1264096",
        "url": "https://bugzilla.suse.com/1264096"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1265224",
        "url": "https://bugzilla.suse.com/1265224"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1265384",
        "url": "https://bugzilla.suse.com/1265384"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2025-54518 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-54518/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2026-46300 page",
        "url": "https://www.suse.com/security/cve/CVE-2026-46300/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2026-46333 page",
        "url": "https://www.suse.com/security/cve/CVE-2026-46333/"
      }
    ],
    "title": "Security update for the Linux Kernel RT (Live Patch 11 for SUSE Linux Enterprise 15 SP7)",
    "tracking": {
      "current_release_date": "2026-05-29T21:35:31Z",
      "generator": {
        "date": "2026-05-29T21:35:31Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2026:2133-1",
      "initial_release_date": "2026-05-29T21:35:31Z",
      "revision_history": [
        {
          "date": "2026-05-29T21:35:31Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
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        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64",
                  "product_id": "kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Live Patching 15 SP7",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 15 SP7",
                  "product_id": "SUSE Linux Enterprise Live Patching 15 SP7",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-module-live-patching:15:sp7"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
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    "relationships": [
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        "full_product_name": {
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          "product_id": "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
        },
        "product_reference": "kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-54518",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-54518"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Improper isolation of shared resources within the CPU operation cache on Zen 2-based products could allow an attacker to corrupt instructions executed at a different privilege level, potentially resulting in privilege escalation.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-54518",
          "url": "https://www.suse.com/security/cve/CVE-2025-54518"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1264013 for CVE-2025-54518",
          "url": "https://bugzilla.suse.com/1264013"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1264066 for CVE-2025-54518",
          "url": "https://bugzilla.suse.com/1264066"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1264096 for CVE-2025-54518",
          "url": "https://bugzilla.suse.com/1264096"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-29T21:35:31Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-54518"
    },
    {
      "cve": "CVE-2026-46300",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-46300"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: skbuff: preserve shared-frag marker during coalescing\n\nskb_try_coalesce() can attach paged frags from @from to @to.  If @from\nhas SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same\nexternally-owned or page-cache-backed frags, but the shared-frag marker\nis currently lost.\n\nThat breaks the invariant relied on by later in-place writers.  In\nparticular, ESP input checks skb_has_shared_frag() before deciding\nwhether an uncloned nonlinear skb can skip skb_cow_data().  If TCP\nreceive coalescing has moved shared frags into an unmarked skb, ESP can\nsee skb_has_shared_frag() as false and decrypt in place over page-cache\nbacked frags.\n\nPropagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged\nfrags.  The tailroom copy path does not need the marker because it copies\nbytes into @to\u0027s linear data rather than transferring frag descriptors.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-46300",
          "url": "https://www.suse.com/security/cve/CVE-2026-46300"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265209 for CVE-2026-46300",
          "url": "https://bugzilla.suse.com/1265209"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265226 for CVE-2026-46300",
          "url": "https://bugzilla.suse.com/1265226"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265312 for CVE-2026-46300",
          "url": "https://bugzilla.suse.com/1265312"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265383 for CVE-2026-46300",
          "url": "https://bugzilla.suse.com/1265383"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1265960 for CVE-2026-46300",
          "url": "https://bugzilla.suse.com/1265960"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-29T21:35:31Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-46300"
    },
    {
      "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"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-46333",
          "url": "https://www.suse.com/security/cve/CVE-2026-46333"
        },
        {
          "category": "external",
          "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": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.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 Live Patching 15 SP7:kernel-livepatch-6_4_0-150700_7_37-rt-4-150700.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-05-29T21:35:31Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-46333"
    }
  ]
}


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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.


Detection rules are retrieved from Rulezet.