suse-su-2025:03403-1
Vulnerability from csaf_suse
Published
2025-09-27 22:04
Modified
2025-09-27 22:04
Summary
Security update for the Linux Kernel (Live Patch 29 for SLE 15 SP5)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 29 for SLE 15 SP5)
Description of the patch
This update for the Linux Kernel 5.14.21-150500_55_116 fixes several issues. The following security issues were fixed: - CVE-2025-38498: do_change_type(): refuse to operate on unmounted/not ours mounts (bsc#1247499). - CVE-2025-38555: usb: gadget : fix use-after-free in composite_dev_cleanup() (bsc#1248298). - CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805).
Patchnames
SUSE-2025-3403,SUSE-SLE-Module-Live-Patching-15-SP5-2025-3403
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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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
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        "text": "This update for the Linux Kernel 5.14.21-150500_55_116 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2025-38498: do_change_type(): refuse to operate on unmounted/not ours mounts (bsc#1247499).\n- CVE-2025-38555: usb: gadget : fix use-after-free in composite_dev_cleanup() (bsc#1248298).\n- CVE-2025-21701: net: avoid race between device unregistration and ethnl ops (bsc#1245805).\n",
        "title": "Description of the patch"
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        "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"
      }
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    "publisher": {
      "category": "vendor",
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      "name": "SUSE Product Security Team",
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        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_03403-1.json"
      },
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        "url": "https://www.suse.com/support/update/announcement/2025/suse-su-202503403-1/"
      },
      {
        "category": "self",
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        "url": "https://lists.suse.com/pipermail/sle-updates/2025-September/041956.html"
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        "url": "https://bugzilla.suse.com/1245805"
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        "summary": "SUSE Bug 1247499",
        "url": "https://bugzilla.suse.com/1247499"
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        "summary": "SUSE Bug 1248298",
        "url": "https://bugzilla.suse.com/1248298"
      },
      {
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        "summary": "SUSE CVE CVE-2025-21701 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-21701/"
      },
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        "summary": "SUSE CVE CVE-2025-38498 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-38498/"
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        "url": "https://www.suse.com/security/cve/CVE-2025-38555/"
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    ],
    "title": "Security update for the Linux Kernel (Live Patch 29 for SLE 15 SP5)",
    "tracking": {
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                "name": "kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.ppc64le",
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                "product": {
                  "name": "kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
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                }
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            "category": "architecture",
            "name": "x86_64"
          },
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              {
                "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"
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              }
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            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
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    "relationships": [
      {
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        "full_product_name": {
          "name": "kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.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_116-default-3-150500.2.1.s390x"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.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_116-default-3-150500.2.1.x86_64"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-27T22:04:02Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21701"
    },
    {
      "cve": "CVE-2025-38498",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38498"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndo_change_type(): refuse to operate on unmounted/not ours mounts\n\nEnsure that propagation settings can only be changed for mounts located\nin the caller\u0027s mount namespace. This change aligns permission checking\nwith the rest of mount(2).",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38498",
          "url": "https://www.suse.com/security/cve/CVE-2025-38498"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1247374 for CVE-2025-38498",
          "url": "https://bugzilla.suse.com/1247374"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1247499 for CVE-2025-38498",
          "url": "https://bugzilla.suse.com/1247499"
        }
      ],
      "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_116-default-3-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-27T22:04:02Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38498"
    },
    {
      "cve": "CVE-2025-38555",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-38555"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget : fix use-after-free in composite_dev_cleanup()\n\n1. In func configfs_composite_bind() -\u003e composite_os_desc_req_prepare():\nif kmalloc fails, the pointer cdev-\u003eos_desc_req will be freed but not\nset to NULL. Then it will return a failure to the upper-level function.\n2. in func configfs_composite_bind() -\u003e composite_dev_cleanup():\nit will checks whether cdev-\u003eos_desc_req is NULL. If it is not NULL, it\nwill attempt to use it.This will lead to a use-after-free issue.\n\nBUG: KASAN: use-after-free in composite_dev_cleanup+0xf4/0x2c0\nRead of size 8 at addr 0000004827837a00 by task init/1\n\nCPU: 10 PID: 1 Comm: init Tainted: G           O      5.10.97-oh #1\n kasan_report+0x188/0x1cc\n __asan_load8+0xb4/0xbc\n composite_dev_cleanup+0xf4/0x2c0\n configfs_composite_bind+0x210/0x7ac\n udc_bind_to_driver+0xb4/0x1ec\n usb_gadget_probe_driver+0xec/0x21c\n gadget_dev_desc_UDC_store+0x264/0x27c",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-38555",
          "url": "https://www.suse.com/security/cve/CVE-2025-38555"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1248297 for CVE-2025-38555",
          "url": "https://bugzilla.suse.com/1248297"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1248298 for CVE-2025-38555",
          "url": "https://bugzilla.suse.com/1248298"
        }
      ],
      "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_116-default-3-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.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_116-default-3-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_116-default-3-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-09-27T22:04:02Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38555"
    }
  ]
}


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