SUSE-SU-2026:0542-1

Vulnerability from csaf_suse - Published: 2026-02-15 16:03 - Updated: 2026-02-15 16:03
Summary
Security update for the Linux Kernel (Live Patch 30 for SUSE Linux Enterprise 15 SP5)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 30 for SUSE Linux Enterprise 15 SP5)
Description of the patch
This update for the SUSE Linux Enterprise kernel 5.14.21-150500.55.121 fixes various security issues The following security issues were fixed: - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250314). - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1249455). - CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480).
Patchnames
SUSE-2026-542,SUSE-SLE-Module-Live-Patching-15-SP5-2026-542
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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          "product_id": "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.ppc64le",
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        "full_product_name": {
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          "text": "https://www.suse.com/security/cve/CVE-2023-53321"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211_hwsim: drop short frames\n\nWhile technically some control frames like ACK are shorter and\nend after Address 1, such frames shouldn\u0027t be forwarded through\nwmediumd or similar userspace, so require the full 3-address\nheader to avoid accessing invalid memory if shorter frames are\npassed in.",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.x86_64"
        ]
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          "summary": "CVE-2023-53321",
          "url": "https://www.suse.com/security/cve/CVE-2023-53321"
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        {
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          "summary": "SUSE Bug 1250313 for CVE-2023-53321",
          "url": "https://bugzilla.suse.com/1250313"
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        {
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          "summary": "SUSE Bug 1250314 for CVE-2023-53321",
          "url": "https://bugzilla.suse.com/1250314"
        }
      ],
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          "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_121-default-6-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.x86_64"
          ]
        }
      ],
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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": [
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.x86_64"
          ]
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          "date": "2026-02-15T16:03:51Z",
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          "text": "https://www.suse.com/security/cve/CVE-2025-38111"
        }
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        {
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          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mdiobus: Fix potential out-of-bounds read/write access\n\nWhen using publicly available tools like \u0027mdio-tools\u0027 to read/write data\nfrom/to network interface and its PHY via mdiobus, there is no verification of\nparameters passed to the ioctl and it accepts any mdio address.\nCurrently there is support for 32 addresses in kernel via PHY_MAX_ADDR define,\nbut it is possible to pass higher value than that via ioctl.\nWhile read/write operation should generally fail in this case,\nmdiobus provides stats array, where wrong address may allow out-of-bounds\nread/write.\n\nFix that by adding address verification before read/write operation.\nWhile this excludes this access from any statistics, it improves security of\nread/write operation.",
          "title": "CVE description"
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        {
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        {
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    },
    {
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          "text": "https://www.suse.com/security/cve/CVE-2025-39742"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask()\n\nThe function divides number of online CPUs by num_core_siblings, and\nlater checks the divider by zero. This implies a possibility to get\nand divide-by-zero runtime error. Fix it by moving the check prior to\ndivision. This also helps to save one indentation level.",
          "title": "CVE description"
        }
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        {
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          "summary": "SUSE Bug 1247374 for CVE-2025-39742",
          "url": "https://bugzilla.suse.com/1247374"
        },
        {
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          "summary": "SUSE Bug 1249479 for CVE-2025-39742",
          "url": "https://bugzilla.suse.com/1249479"
        },
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          "url": "https://bugzilla.suse.com/1249480"
        },
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          "url": "https://bugzilla.suse.com/1253291"
        }
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.x86_64"
          ]
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            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_121-default-6-150500.2.1.x86_64"
          ]
        }
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      "threats": [
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          "date": "2026-02-15T16:03:51Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-39742"
    }
  ]
}


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Sightings

Author Source Type Date

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.