SUSE-SU-2026:0526-1

Vulnerability from csaf_suse - Published: 2026-02-14 19:33 - Updated: 2026-02-14 19:33
Summary
Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP4)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP4)
Description of the patch
This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.147 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-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205). - CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480).
Patchnames
SUSE-2026-526,SUSE-SLE-Module-Live-Patching-15-SP4-2026-526
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": "\nThis update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.147 fixes various security issues\n\nThe following security issues were fixed:\n\n- CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250314).\n- CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1249455).\n- CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205).\n- CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480).\n",
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    "title": "Security update for the Linux Kernel (Live Patch 35 for SUSE Linux Enterprise 15 SP4)",
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      "cve": "CVE-2023-53321",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "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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        ]
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          "summary": "CVE-2023-53321",
          "url": "https://www.suse.com/security/cve/CVE-2023-53321"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1250313 for CVE-2023-53321",
          "url": "https://bugzilla.suse.com/1250313"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1250314 for CVE-2023-53321",
          "url": "https://bugzilla.suse.com/1250314"
        }
      ],
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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": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
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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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          "date": "2026-02-14T19:33:43Z",
          "details": "important"
        }
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          "text": "https://www.suse.com/security/cve/CVE-2025-38111"
        }
      ],
      "notes": [
        {
          "category": "general",
          "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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          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.x86_64"
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        {
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.x86_64"
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            "version": "3.1"
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          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
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          ]
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          "category": "impact",
          "date": "2026-02-14T19:33:43Z",
          "details": "important"
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    },
    {
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          "text": "https://www.suse.com/security/cve/CVE-2025-38352"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()\n\nIf an exiting non-autoreaping task has already passed exit_notify() and\ncalls handle_posix_cpu_timers() from IRQ, it can be reaped by its parent\nor debugger right after unlock_task_sighand().\n\nIf a concurrent posix_cpu_timer_del() runs at that moment, it won\u0027t be\nable to detect timer-\u003eit.cpu.firing != 0: cpu_timer_task_rcu() and/or\nlock_task_sighand() will fail.\n\nAdd the tsk-\u003eexit_state check into run_posix_cpu_timers() to fix this.\n\nThis fix is not needed if CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y, because\nexit_task_work() is called before exit_notify(). But the check still\nmakes sense, task_work_add(\u0026tsk-\u003eposix_cputimers_work.work) will fail\nanyway in this case.",
          "title": "CVE description"
        }
      ],
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          "summary": "CVE-2025-38352",
          "url": "https://www.suse.com/security/cve/CVE-2025-38352"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1246911 for CVE-2025-38352",
          "url": "https://bugzilla.suse.com/1246911"
        },
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          "category": "external",
          "summary": "SUSE Bug 1249205 for CVE-2025-38352",
          "url": "https://bugzilla.suse.com/1249205"
        }
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.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",
            "version": "3.1"
          },
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.x86_64"
          ]
        }
      ],
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          "date": "2026-02-14T19:33:43Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-38352"
    },
    {
      "cve": "CVE-2025-39742",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "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"
        }
      ],
      "product_status": {
        "recommended": [
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          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.x86_64"
        ]
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      "references": [
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          "summary": "CVE-2025-39742",
          "url": "https://www.suse.com/security/cve/CVE-2025-39742"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1247374 for CVE-2025-39742",
          "url": "https://bugzilla.suse.com/1247374"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1249479 for CVE-2025-39742",
          "url": "https://bugzilla.suse.com/1249479"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1249480 for CVE-2025-39742",
          "url": "https://bugzilla.suse.com/1249480"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1253291 for CVE-2025-39742",
          "url": "https://bugzilla.suse.com/1253291"
        }
      ],
      "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_147-default-19-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.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_147-default-19-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_147-default-19-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-02-14T19:33:43Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-39742"
    }
  ]
}


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Tags
Taxonomy of the tags.




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.