suse-su-2025:3679-1
Vulnerability from csaf_suse
Published
2025-10-20 10:33
Modified
2025-10-20 10:33
Summary
Security update for the Linux Kernel (Live Patch 34 for SLE 15 SP4)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 34 for SLE 15 SP4)
Description of the patch
This update for the Linux Kernel 5.14.21-150400_24_144 fixes several issues. The following security issues were fixed: - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249534). - CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (bsc#1248673). - CVE-2025-21971: net_sched: Prevent creation of classes with TC_H_ROOT (bsc#1245794). - CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not associated (bsc#1248749). - CVE-2025-38206: exfat: fix double free in delayed_free (bsc#1246075).
Patchnames
SUSE-2025-3679,SUSE-2025-3680,SUSE-SLE-Module-Live-Patching-15-SP4-2025-3679
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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      "text": "important"
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
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        "text": "This update for the Linux Kernel 5.14.21-150400_24_144 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249534).\n- CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (bsc#1248673).\n- CVE-2025-21971: net_sched: Prevent creation of classes with TC_H_ROOT (bsc#1245794).\n- CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not associated (bsc#1248749).\n- CVE-2025-38206: exfat: fix double free in delayed_free (bsc#1246075).\n",
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        "title": "Patchnames"
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        "url": "https://bugzilla.suse.com/1248673"
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        "summary": "SUSE Bug 1248749",
        "url": "https://bugzilla.suse.com/1248749"
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        "summary": "SUSE Bug 1249534",
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      },
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      },
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        "url": "https://www.suse.com/security/cve/CVE-2025-38499/"
      },
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        "url": "https://www.suse.com/security/cve/CVE-2025-38644/"
      },
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        "summary": "SUSE CVE CVE-2025-38678 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-38678/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 34 for SLE 15 SP4)",
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        "full_product_name": {
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  "vulnerabilities": [
    {
      "cve": "CVE-2025-21971",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-21971"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: Prevent creation of classes with TC_H_ROOT\n\nThe function qdisc_tree_reduce_backlog() uses TC_H_ROOT as a termination\ncondition when traversing up the qdisc tree to update parent backlog\ncounters. However, if a class is created with classid TC_H_ROOT, the\ntraversal terminates prematurely at this class instead of reaching the\nactual root qdisc, causing parent statistics to be incorrectly maintained.\nIn case of DRR, this could lead to a crash as reported by Mingi Cho.\n\nPrevent the creation of any Qdisc class with classid TC_H_ROOT\n(0xFFFFFFFF) across all qdisc types, as suggested by Jamal.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-21971",
          "url": "https://www.suse.com/security/cve/CVE-2025-21971"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1240799 for CVE-2025-21971",
          "url": "https://bugzilla.suse.com/1240799"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1245794 for CVE-2025-21971",
          "url": "https://bugzilla.suse.com/1245794"
        }
      ],
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        {
          "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 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
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            "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": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
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          "date": "2025-10-20T10:33:45Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21971"
    },
    {
      "cve": "CVE-2025-38206",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38206"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix double free in delayed_free\n\nThe double free could happen in the following path.\n\nexfat_create_upcase_table()\n        exfat_create_upcase_table() : return error\n        exfat_free_upcase_table() : free -\u003evol_utbl\n        exfat_load_default_upcase_table : return error\n     exfat_kill_sb()\n           delayed_free()\n                  exfat_free_upcase_table() \u003c--------- double free\nThis patch set -\u003evol_util as NULL after freeing it.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38206",
          "url": "https://www.suse.com/security/cve/CVE-2025-38206"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1246073 for CVE-2025-38206",
          "url": "https://bugzilla.suse.com/1246073"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1246075 for CVE-2025-38206",
          "url": "https://bugzilla.suse.com/1246075"
        }
      ],
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
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          "date": "2025-10-20T10:33:45Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38206"
    },
    {
      "cve": "CVE-2025-38499",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38499"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nclone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns\n\nWhat we want is to verify there is that clone won\u0027t expose something\nhidden by a mount we wouldn\u0027t be able to undo.  \"Wouldn\u0027t be able to undo\"\nmay be a result of MNT_LOCKED on a child, but it may also come from\nlacking admin rights in the userns of the namespace mount belongs to.\n\nclone_private_mnt() checks the former, but not the latter.\n\nThere\u0027s a number of rather confusing CAP_SYS_ADMIN checks in various\nuserns during the mount, especially with the new mount API; they serve\ndifferent purposes and in case of clone_private_mnt() they usually,\nbut not always end up covering the missing check mentioned above.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38499",
          "url": "https://www.suse.com/security/cve/CVE-2025-38499"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1247976 for CVE-2025-38499",
          "url": "https://bugzilla.suse.com/1247976"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1248673 for CVE-2025-38499",
          "url": "https://bugzilla.suse.com/1248673"
        }
      ],
      "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 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
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          "category": "impact",
          "date": "2025-10-20T10:33:45Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38499"
    },
    {
      "cve": "CVE-2025-38644",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38644"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: reject TDLS operations when station is not associated\n\nsyzbot triggered a WARN in ieee80211_tdls_oper() by sending\nNL80211_TDLS_ENABLE_LINK immediately after NL80211_CMD_CONNECT,\nbefore association completed and without prior TDLS setup.\n\nThis left internal state like sdata-\u003eu.mgd.tdls_peer uninitialized,\nleading to a WARN_ON() in code paths that assumed it was valid.\n\nReject the operation early if not in station mode or not associated.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38644",
          "url": "https://www.suse.com/security/cve/CVE-2025-38644"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1248748 for CVE-2025-38644",
          "url": "https://bugzilla.suse.com/1248748"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1248749 for CVE-2025-38644",
          "url": "https://bugzilla.suse.com/1248749"
        }
      ],
      "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 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-20T10:33:45Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38644"
    },
    {
      "cve": "CVE-2025-38678",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38678"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: reject duplicate device on updates\n\nA chain/flowtable update with duplicated devices in the same batch is\npossible. Unfortunately, netdev event path only removes the first\ndevice that is found, leaving unregistered the hook of the duplicated\ndevice.\n\nCheck if a duplicated device exists in the transaction batch, bail out\nwith EEXIST in such case.\n\nWARNING is hit when unregistering the hook:\n\n [49042.221275] WARNING: CPU: 4 PID: 8425 at net/netfilter/core.c:340 nf_hook_entry_head+0xaa/0x150\n [49042.221375] CPU: 4 UID: 0 PID: 8425 Comm: nft Tainted: G S                  6.16.0+ #170 PREEMPT(full)\n [...]\n [49042.221382] RIP: 0010:nf_hook_entry_head+0xaa/0x150",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38678",
          "url": "https://www.suse.com/security/cve/CVE-2025-38678"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1249126 for CVE-2025-38678",
          "url": "https://bugzilla.suse.com/1249126"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1249534 for CVE-2025-38678",
          "url": "https://bugzilla.suse.com/1249534"
        }
      ],
      "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 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_144-default-15-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-20T10:33:45Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38678"
    }
  ]
}


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