suse-su-2025:03656-1
Vulnerability from csaf_suse
Published
2025-10-19 09:33
Modified
2025-10-19 09:33
Summary
Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)
Description of the patch
This update for the Linux Kernel 4.12.14-122_234 fixes several issues. The following security issues were fixed: - CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free (bsc#1250302). - 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).
Patchnames
SUSE-2025-3656,SUSE-SLE-Live-Patching-12-SP5-2025-3656
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"
    },
    "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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    },
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    "notes": [
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        "text": "Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 4.12.14-122_234 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free (bsc#1250302).\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",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2025-3656,SUSE-SLE-Live-Patching-12-SP5-2025-3656",
        "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": {
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        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
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        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_03656-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2025:03656-1",
        "url": "https://www.suse.com/support/update/announcement/2025/suse-su-202503656-1/"
      },
      {
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        "summary": "E-Mail link for SUSE-SU-2025:03656-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2025-October/042206.html"
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        "url": "https://bugzilla.suse.com/1248673"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1248749",
        "url": "https://bugzilla.suse.com/1248749"
      },
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        "summary": "SUSE Bug 1250302",
        "url": "https://bugzilla.suse.com/1250302"
      },
      {
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        "summary": "SUSE CVE CVE-2022-50386 page",
        "url": "https://www.suse.com/security/cve/CVE-2022-50386/"
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        "url": "https://www.suse.com/security/cve/CVE-2025-21971/"
      },
      {
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        "summary": "SUSE CVE CVE-2025-38499 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-38499/"
      },
      {
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        "summary": "SUSE CVE CVE-2025-38644 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-38644/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)",
    "tracking": {
      "current_release_date": "2025-10-19T09:33:41Z",
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      },
      "id": "SUSE-SU-2025:03656-1",
      "initial_release_date": "2025-10-19T09:33:41Z",
      "revision_history": [
        {
          "date": "2025-10-19T09:33:41Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
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        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
                "product": {
                  "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
                  "product_id": "kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le"
                }
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            ],
            "category": "architecture",
            "name": "ppc64le"
          },
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                "category": "product_version",
                "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
                "product": {
                  "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
                  "product_id": "kgraft-patch-4_12_14-122_234-default-17-2.1.s390x"
                }
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            "name": "s390x"
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            "branches": [
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                "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64",
                "product": {
                  "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64",
                  "product_id": "kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Live Patching 12 SP5",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 12 SP5",
                  "product_id": "SUSE Linux Enterprise Live Patching 12 SP5",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-live-patching:12:sp5"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 12 SP5",
          "product_id": "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le"
        },
        "product_reference": "kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 12 SP5"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.s390x as component of SUSE Linux Enterprise Live Patching 12 SP5",
          "product_id": "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x"
        },
        "product_reference": "kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 12 SP5"
      },
      {
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        "full_product_name": {
          "name": "kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 12 SP5",
          "product_id": "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
        },
        "product_reference": "kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 12 SP5"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-50386",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2022-50386"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix user-after-free\n\nThis uses l2cap_chan_hold_unless_zero() after calling\n__l2cap_get_chan_blah() to prevent the following trace:\n\nBluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref\n*kref)\nBluetooth: chan 0000000023c4974d\nBluetooth: parent 00000000ae861c08\n==================================================================\nBUG: KASAN: use-after-free in __mutex_waiter_is_first\nkernel/locking/mutex.c:191 [inline]\nBUG: KASAN: use-after-free in __mutex_lock_common\nkernel/locking/mutex.c:671 [inline]\nBUG: KASAN: use-after-free in __mutex_lock+0x278/0x400\nkernel/locking/mutex.c:729\nRead of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2022-50386",
          "url": "https://www.suse.com/security/cve/CVE-2022-50386"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1250301 for CVE-2022-50386",
          "url": "https://bugzilla.suse.com/1250301"
        }
      ],
      "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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-19T09:33:41Z",
          "details": "important"
        }
      ],
      "title": "CVE-2022-50386"
    },
    {
      "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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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"
        }
      ],
      "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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-19T09:33:41Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21971"
    },
    {
      "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": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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": [
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-19T09:33:41Z",
          "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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
          "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.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 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.s390x",
            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-17-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-19T09:33:41Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38644"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.