SUSE-SU-2026:0185-1

Vulnerability from csaf_suse - Published: 2026-01-20 11:08 - Updated: 2026-01-20 11:08
Summary
Security update for the Linux Kernel (Live Patch 45 for SUSE Linux Enterprise 15 SP4)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 45 for SUSE Linux Enterprise 15 SP4)
Description of the patch
This update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.179 fixes various security issues The following security issues were fixed: - CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1254451). - CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251165). - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251787). - CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437).
Patchnames
SUSE-2026-185,SUSE-SLE-Module-Live-Patching-15-SP4-2026-185
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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        "text": "\nThis update for the SUSE Linux Enterprise kernel 5.14.21-150400.24.179 fixes various security issues\n\nThe following security issues were fixed:\n\n- CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1254451).\n- CVE-2022-50490: bpf: Propagate error from htab_lock_bucket() to userspace (bsc#1251165).\n- CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (bsc#1251787).\n- CVE-2025-40204: sctp: Fix MAC comparison to be constant-time (bsc#1253437).\n",
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      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2022-50327"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: processor: idle: Check acpi_fetch_acpi_dev() return value\n\nThe return value of acpi_fetch_acpi_dev() could be NULL, which would\ncause a NULL pointer dereference to occur in acpi_device_hid().\n\n[ rjw: Subject and changelog edits, added empty line after if () ]",
          "title": "CVE description"
        }
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          "summary": "SUSE Bug 1249859 for CVE-2022-50327",
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          "product_ids": [
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            "version": "3.1"
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          "products": [
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        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Propagate error from htab_lock_bucket() to userspace\n\nIn __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns\n-EBUSY, it will go to next bucket. Going to next bucket may not only\nskip the elements in current bucket silently, but also incur\nout-of-bound memory access or expose kernel memory to userspace if\ncurrent bucket_cnt is greater than bucket_size or zero.\n\nFixing it by stopping batch operation and returning -EBUSY when\nhtab_lock_bucket() fails, and the application can retry or skip the busy\nbatch as needed.",
          "title": "CVE description"
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    {
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          "text": "https://www.suse.com/security/cve/CVE-2023-53676"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()\n\nThe function lio_target_nacl_info_show() uses sprintf() in a loop to print\ndetails for every iSCSI connection in a session without checking for the\nbuffer length. With enough iSCSI connections it\u0027s possible to overflow the\nbuffer provided by configfs and corrupt the memory.\n\nThis patch replaces sprintf() with sysfs_emit_at() that checks for buffer\nboundries.",
          "title": "CVE description"
        }
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          "summary": "CVE-2023-53676",
          "url": "https://www.suse.com/security/cve/CVE-2023-53676"
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.x86_64"
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        }
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        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this.",
          "title": "CVE description"
        }
      ],
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          "summary": "SUSE Bug 1253436 for CVE-2025-40204",
          "url": "https://bugzilla.suse.com/1253436"
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          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.x86_64"
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_179-default-4-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-01-20T11:08:06Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-40204"
    }
  ]
}


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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.