suse-su-2025:02444-1
Vulnerability from csaf_suse
Published
2025-07-21 13:04
Modified
2025-07-21 13:04
Summary
Security update for the Linux Kernel (Live Patch 36 for SLE 15 SP4)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 36 for SLE 15 SP4)
Description of the patch
This update for the Linux Kernel 5.14.21-150400_24_150 fixes several issues. The following security issues were fixed: - CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238920). - CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238912). - CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1243648).
Patchnames
SUSE-2025-2444,SUSE-SLE-Module-Live-Patching-15-SP4-2025-2444
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": "important"
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
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        "title": "Title of the patch"
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        "text": "This update for the Linux Kernel 5.14.21-150400_24_150 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238920).\n- CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238912).\n- CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1243648).\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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        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_02444-1.json"
      },
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        "summary": "URL for SUSE-SU-2025:02444-1",
        "url": "https://www.suse.com/support/update/announcement/2025/suse-su-202502444-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2025:02444-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2025-July/040828.html"
      },
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        "summary": "SUSE Bug 1238912",
        "url": "https://bugzilla.suse.com/1238912"
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        "summary": "SUSE Bug 1238920",
        "url": "https://bugzilla.suse.com/1238920"
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        "category": "self",
        "summary": "SUSE Bug 1243648",
        "url": "https://bugzilla.suse.com/1243648"
      },
      {
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        "summary": "SUSE CVE CVE-2022-49465 page",
        "url": "https://www.suse.com/security/cve/CVE-2022-49465/"
      },
      {
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        "url": "https://www.suse.com/security/cve/CVE-2024-56558/"
      },
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        "summary": "SUSE CVE CVE-2025-21772 page",
        "url": "https://www.suse.com/security/cve/CVE-2025-21772/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 36 for SLE 15 SP4)",
    "tracking": {
      "current_release_date": "2025-07-21T13:04:21Z",
      "generator": {
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      "id": "SUSE-SU-2025:02444-1",
      "initial_release_date": "2025-07-21T13:04:21Z",
      "revision_history": [
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        }
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  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
                "product": {
                  "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
                  "product_id": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
                "product": {
                  "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
                  "product_id": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
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                "category": "product_version",
                "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64",
                "product": {
                  "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64",
                  "product_id": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
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                "name": "SUSE Linux Enterprise Live Patching 15 SP4",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 15 SP4",
                  "product_id": "SUSE Linux Enterprise Live Patching 15 SP4",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-module-live-patching:15:sp4"
                  }
                }
              }
            ],
            "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_21-150400_24_150-default-3-150400.2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP4",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le"
        },
        "product_reference": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP4"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP4",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x"
        },
        "product_reference": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP4"
      },
      {
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        "full_product_name": {
          "name": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP4",
          "product_id": "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
        },
        "product_reference": "kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15 SP4"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-49465",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2022-49465"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-throttle: Set BIO_THROTTLED when bio has been throttled\n\n1.In current process, all bio will set the BIO_THROTTLED flag\nafter __blk_throtl_bio().\n\n2.If bio needs to be throttled, it will start the timer and\nstop submit bio directly. Bio will submit in\nblk_throtl_dispatch_work_fn() when the timer expires.But in\nthe current process, if bio is throttled. The BIO_THROTTLED\nwill be set to bio after timer start. If the bio has been\ncompleted, it may cause use-after-free blow.\n\nBUG: KASAN: use-after-free in blk_throtl_bio+0x12f0/0x2c70\nRead of size 2 at addr ffff88801b8902d4 by task fio/26380\n\n dump_stack+0x9b/0xce\n print_address_description.constprop.6+0x3e/0x60\n kasan_report.cold.9+0x22/0x3a\n blk_throtl_bio+0x12f0/0x2c70\n submit_bio_checks+0x701/0x1550\n submit_bio_noacct+0x83/0xc80\n submit_bio+0xa7/0x330\n mpage_readahead+0x380/0x500\n read_pages+0x1c1/0xbf0\n page_cache_ra_unbounded+0x471/0x6f0\n do_page_cache_ra+0xda/0x110\n ondemand_readahead+0x442/0xae0\n page_cache_async_ra+0x210/0x300\n generic_file_buffered_read+0x4d9/0x2130\n generic_file_read_iter+0x315/0x490\n blkdev_read_iter+0x113/0x1b0\n aio_read+0x2ad/0x450\n io_submit_one+0xc8e/0x1d60\n __se_sys_io_submit+0x125/0x350\n do_syscall_64+0x2d/0x40\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\n\nAllocated by task 26380:\n kasan_save_stack+0x19/0x40\n __kasan_kmalloc.constprop.2+0xc1/0xd0\n kmem_cache_alloc+0x146/0x440\n mempool_alloc+0x125/0x2f0\n bio_alloc_bioset+0x353/0x590\n mpage_alloc+0x3b/0x240\n do_mpage_readpage+0xddf/0x1ef0\n mpage_readahead+0x264/0x500\n read_pages+0x1c1/0xbf0\n page_cache_ra_unbounded+0x471/0x6f0\n do_page_cache_ra+0xda/0x110\n ondemand_readahead+0x442/0xae0\n page_cache_async_ra+0x210/0x300\n generic_file_buffered_read+0x4d9/0x2130\n generic_file_read_iter+0x315/0x490\n blkdev_read_iter+0x113/0x1b0\n aio_read+0x2ad/0x450\n io_submit_one+0xc8e/0x1d60\n __se_sys_io_submit+0x125/0x350\n do_syscall_64+0x2d/0x40\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\n\nFreed by task 0:\n kasan_save_stack+0x19/0x40\n kasan_set_track+0x1c/0x30\n kasan_set_free_info+0x1b/0x30\n __kasan_slab_free+0x111/0x160\n kmem_cache_free+0x94/0x460\n mempool_free+0xd6/0x320\n bio_free+0xe0/0x130\n bio_put+0xab/0xe0\n bio_endio+0x3a6/0x5d0\n blk_update_request+0x590/0x1370\n scsi_end_request+0x7d/0x400\n scsi_io_completion+0x1aa/0xe50\n scsi_softirq_done+0x11b/0x240\n blk_mq_complete_request+0xd4/0x120\n scsi_mq_done+0xf0/0x200\n virtscsi_vq_done+0xbc/0x150\n vring_interrupt+0x179/0x390\n __handle_irq_event_percpu+0xf7/0x490\n handle_irq_event_percpu+0x7b/0x160\n handle_irq_event+0xcc/0x170\n handle_edge_irq+0x215/0xb20\n common_interrupt+0x60/0x120\n asm_common_interrupt+0x1e/0x40\n\nFix this by move BIO_THROTTLED set into the queue_lock.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2022-49465",
          "url": "https://www.suse.com/security/cve/CVE-2022-49465"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238919 for CVE-2022-49465",
          "url": "https://bugzilla.suse.com/1238919"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238920 for CVE-2022-49465",
          "url": "https://bugzilla.suse.com/1238920"
        }
      ],
      "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_150-default-3-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.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_150-default-3-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-07-21T13:04:21Z",
          "details": "important"
        }
      ],
      "title": "CVE-2022-49465"
    },
    {
      "cve": "CVE-2024-56558",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-56558"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: make sure exp active before svc_export_show\n\nThe function `e_show` was called with protection from RCU. This only\nensures that `exp` will not be freed. Therefore, the reference count for\n`exp` can drop to zero, which will trigger a refcount use-after-free\nwarning when `exp_get` is called. To resolve this issue, use\n`cache_get_rcu` to ensure that `exp` remains active.\n\n------------[ cut here ]------------\nrefcount_t: addition on 0; use-after-free.\nWARNING: CPU: 3 PID: 819 at lib/refcount.c:25\nrefcount_warn_saturate+0xb1/0x120\nCPU: 3 UID: 0 PID: 819 Comm: cat Not tainted 6.12.0-rc3+ #1\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS\n1.16.1-2.fc37 04/01/2014\nRIP: 0010:refcount_warn_saturate+0xb1/0x120\n...\nCall Trace:\n \u003cTASK\u003e\n e_show+0x20b/0x230 [nfsd]\n seq_read_iter+0x589/0x770\n seq_read+0x1e5/0x270\n vfs_read+0x125/0x530\n ksys_read+0xc1/0x160\n do_syscall_64+0x5f/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-56558",
          "url": "https://www.suse.com/security/cve/CVE-2024-56558"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1235100 for CVE-2024-56558",
          "url": "https://bugzilla.suse.com/1235100"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1243648 for CVE-2024-56558",
          "url": "https://bugzilla.suse.com/1243648"
        }
      ],
      "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_150-default-3-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-07-21T13:04:21Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2024-56558"
    },
    {
      "cve": "CVE-2025-21772",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2025-21772"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\npartitions: mac: fix handling of bogus partition table\n\nFix several issues in partition probing:\n\n - The bailout for a bad partoffset must use put_dev_sector(), since the\n   preceding read_part_sector() succeeded.\n - If the partition table claims a silly sector size like 0xfff bytes\n   (which results in partition table entries straddling sector boundaries),\n   bail out instead of accessing out-of-bounds memory.\n - We must not assume that the partition table contains proper NUL\n   termination - use strnlen() and strncmp() instead of strlen() and\n   strcmp().",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2025-21772",
          "url": "https://www.suse.com/security/cve/CVE-2025-21772"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238911 for CVE-2025-21772",
          "url": "https://bugzilla.suse.com/1238911"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238912 for CVE-2025-21772",
          "url": "https://bugzilla.suse.com/1238912"
        }
      ],
      "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_150-default-3-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.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 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP4:kernel-livepatch-5_14_21-150400_24_150-default-3-150400.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-07-21T13:04:21Z",
          "details": "important"
        }
      ],
      "title": "CVE-2025-21772"
    }
  ]
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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