suse-su-2025:03188-1
Vulnerability from csaf_suse
Published
2025-09-12 06:33
Modified
2025-09-12 06:33
Summary
Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP5)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP5)
Description of the patch
This update for the Linux Kernel 5.14.21-150500_55_113 fixes several issues. The following security issues were fixed: - CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805). - CVE-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030).
Patchnames
SUSE-2025-3188,SUSE-SLE-Module-Live-Patching-15-SP5-2025-3188
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 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "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/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP5)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 5.14.21-150500_55_113 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805).\n- CVE-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2025-3188,SUSE-SLE-Module-Live-Patching-15-SP5-2025-3188",
        "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-2025_03188-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2025:03188-1",
        "url": "https://www.suse.com/support/update/announcement/2025/suse-su-202503188-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2025:03188-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2025-September/041667.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1245805",
        "url": "https://bugzilla.suse.com/1245805"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1246030",
        "url": "https://bugzilla.suse.com/1246030"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2025-21701 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-21701/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2025-38212 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-38212/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 28 for SLE 15 SP5)",
    "tracking": {
      "current_release_date": "2025-09-12T06:33:49Z",
      "generator": {
        "date": "2025-09-12T06:33:49Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2025:03188-1",
      "initial_release_date": "2025-09-12T06:33:49Z",
      "revision_history": [
        {
          "date": "2025-09-12T06:33:49Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
                "product": {
                  "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
                  "product_id": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
                "product": {
                  "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
                  "product_id": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64",
                  "product_id": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Live Patching 15 SP5",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 15 SP5",
                  "product_id": "SUSE Linux Enterprise Live Patching 15 SP5",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-module-live-patching:15:sp5"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP5",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP5"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP5",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP5"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP5",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP5"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-21701",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-21701"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: avoid race between device unregistration and ethnl ops\n\nThe following trace can be seen if a device is being unregistered while\nits number of channels are being modified.\n\n  DEBUG_LOCKS_WARN_ON(lock-\u003emagic != lock)\n  WARNING: CPU: 3 PID: 3754 at kernel/locking/mutex.c:564 __mutex_lock+0xc8a/0x1120\n  CPU: 3 UID: 0 PID: 3754 Comm: ethtool Not tainted 6.13.0-rc6+ #771\n  RIP: 0010:__mutex_lock+0xc8a/0x1120\n  Call Trace:\n   \u003cTASK\u003e\n   ethtool_check_max_channel+0x1ea/0x880\n   ethnl_set_channels+0x3c3/0xb10\n   ethnl_default_set_doit+0x306/0x650\n   genl_family_rcv_msg_doit+0x1e3/0x2c0\n   genl_rcv_msg+0x432/0x6f0\n   netlink_rcv_skb+0x13d/0x3b0\n   genl_rcv+0x28/0x40\n   netlink_unicast+0x42e/0x720\n   netlink_sendmsg+0x765/0xc20\n   __sys_sendto+0x3ac/0x420\n   __x64_sys_sendto+0xe0/0x1c0\n   do_syscall_64+0x95/0x180\n   entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nThis is because unregister_netdevice_many_notify might run before the\nrtnl lock section of ethnl operations, eg. set_channels in the above\nexample. In this example the rss lock would be destroyed by the device\nunregistration path before being used again, but in general running\nethnl operations while dismantle has started is not a good idea.\n\nFix this by denying any operation on devices being unregistered. A check\nwas already there in ethnl_ops_begin, but not wide enough.\n\nNote that the same issue cannot be seen on the ioctl version\n(__dev_ethtool) because the device reference is retrieved from within\nthe rtnl lock section there. Once dismantle started, the net device is\nunlisted and no reference will be found.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-21701",
          "url": "https://www.suse.com/security/cve/CVE-2025-21701"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1237164 for CVE-2025-21701",
          "url": "https://bugzilla.suse.com/1237164"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1245805 for CVE-2025-21701",
          "url": "https://bugzilla.suse.com/1245805"
        }
      ],
      "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 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.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 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-12T06:33:49Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21701"
    },
    {
      "cve": "CVE-2025-38212",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38212"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nipc: fix to protect IPCS lookups using RCU\n\nsyzbot reported that it discovered a use-after-free vulnerability, [0]\n\n[0]: https://lore.kernel.org/all/67af13f8.050a0220.21dd3.0038.GAE@google.com/\n\nidr_for_each() is protected by rwsem, but this is not enough.  If it is\nnot protected by RCU read-critical region, when idr_for_each() calls\nradix_tree_node_free() through call_rcu() to free the radix_tree_node\nstructure, the node will be freed immediately, and when reading the next\nnode in radix_tree_for_each_slot(), the already freed memory may be read.\n\nTherefore, we need to add code to make sure that idr_for_each() is\nprotected within the RCU read-critical region when we call it in\nshm_destroy_orphaned().",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38212",
          "url": "https://www.suse.com/security/cve/CVE-2025-38212"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1246029 for CVE-2025-38212",
          "url": "https://bugzilla.suse.com/1246029"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1246030 for CVE-2025-38212",
          "url": "https://bugzilla.suse.com/1246030"
        }
      ],
      "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 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.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 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_113-default-4-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-12T06:33:49Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38212"
    }
  ]
}


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