SUSE-SU-2025:0241-1

Vulnerability from csaf_suse - Published: 2025-01-26 05:03 - Updated: 2026-09-20 17:33
Summary
Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP5)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP5)
Description of the patch: This update for the Linux Kernel 5.14.21-150500_55_44 fixes several issues. The following security issues were fixed: - CVE-2024-41057: cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie() (bsc#1229275). - CVE-2024-36971: Fixed __dst_negative_advice() race (bsc#1226324).
Patchnames: SUSE-2025-241,SUSE-SLE-Module-Live-Patching-15-SP5-2025-241
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2024-36971
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.ppc64le —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2024-41057
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Recommended 3 products, the same list as for CVE-2024-36971
Threats
Impact important
References
To clipboard 

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        "text": "This update for the Linux Kernel 5.14.21-150500_55_44 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2024-41057: cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie() (bsc#1229275).\n- CVE-2024-36971: Fixed __dst_negative_advice() race (bsc#1226324).\n",
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  "vulnerabilities": [
    {
      "cve": "CVE-2024-36971",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-36971"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix __dst_negative_advice() race\n\n__dst_negative_advice() does not enforce proper RCU rules when\nsk-\u003edst_cache must be cleared, leading to possible UAF.\n\nRCU rules are that we must first clear sk-\u003esk_dst_cache,\nthen call dst_release(old_dst).\n\nNote that sk_dst_reset(sk) is implementing this protocol correctly,\nwhile __dst_negative_advice() uses the wrong order.\n\nGiven that ip6_negative_advice() has special logic\nagainst RTF_CACHE, this means each of the three -\u003enegative_advice()\nexisting methods must perform the sk_dst_reset() themselves.\n\nNote the check against NULL dst is centralized in\n__dst_negative_advice(), there is no need to duplicate\nit in various callbacks.\n\nMany thanks to Clement Lecigne for tracking this issue.\n\nThis old bug became visible after the blamed commit, using UDP sockets.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-36971",
          "url": "https://www.suse.com/security/cve/CVE-2024-36971"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1226145 for CVE-2024-36971",
          "url": "https://bugzilla.suse.com/1226145"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1226324 for CVE-2024-36971",
          "url": "https://bugzilla.suse.com/1226324"
        }
      ],
      "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_44-default-0:15-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.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_44-default-0:15-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-01-26T05:03:57Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-36971"
    },
    {
      "cve": "CVE-2024-41057",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-41057"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()\n\nWe got the following issue in our fault injection stress test:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in cachefiles_withdraw_cookie+0x4d9/0x600\nRead of size 8 at addr ffff888118efc000 by task kworker/u78:0/109\n\nCPU: 13 PID: 109 Comm: kworker/u78:0 Not tainted 6.8.0-dirty #566\nCall Trace:\n \u003cTASK\u003e\n kasan_report+0x93/0xc0\n cachefiles_withdraw_cookie+0x4d9/0x600\n fscache_cookie_state_machine+0x5c8/0x1230\n fscache_cookie_worker+0x91/0x1c0\n process_one_work+0x7fa/0x1800\n [...]\n\nAllocated by task 117:\n kmalloc_trace+0x1b3/0x3c0\n cachefiles_acquire_volume+0xf3/0x9c0\n fscache_create_volume_work+0x97/0x150\n process_one_work+0x7fa/0x1800\n [...]\n\nFreed by task 120301:\n kfree+0xf1/0x2c0\n cachefiles_withdraw_cache+0x3fa/0x920\n cachefiles_put_unbind_pincount+0x1f6/0x250\n cachefiles_daemon_release+0x13b/0x290\n __fput+0x204/0xa00\n task_work_run+0x139/0x230\n do_exit+0x87a/0x29b0\n [...]\n==================================================================\n\nFollowing is the process that triggers the issue:\n\n           p1                |             p2\n------------------------------------------------------------\n                              fscache_begin_lookup\n                               fscache_begin_volume_access\n                                fscache_cache_is_live(fscache_cache)\ncachefiles_daemon_release\n cachefiles_put_unbind_pincount\n  cachefiles_daemon_unbind\n   cachefiles_withdraw_cache\n    fscache_withdraw_cache\n     fscache_set_cache_state(cache, FSCACHE_CACHE_IS_WITHDRAWN);\n    cachefiles_withdraw_objects(cache)\n    fscache_wait_for_objects(fscache)\n      atomic_read(\u0026fscache_cache-\u003eobject_count) == 0\n                              fscache_perform_lookup\n                               cachefiles_lookup_cookie\n                                cachefiles_alloc_object\n                                 refcount_set(\u0026object-\u003eref, 1);\n                                 object-\u003evolume = volume\n                                 fscache_count_object(vcookie-\u003ecache);\n                                  atomic_inc(\u0026fscache_cache-\u003eobject_count)\n    cachefiles_withdraw_volumes\n     cachefiles_withdraw_volume\n      fscache_withdraw_volume\n      __cachefiles_free_volume\n       kfree(cachefiles_volume)\n                              fscache_cookie_state_machine\n                               cachefiles_withdraw_cookie\n                                cache = object-\u003evolume-\u003ecache;\n                                // cachefiles_volume UAF !!!\n\nAfter setting FSCACHE_CACHE_IS_WITHDRAWN, wait for all the cookie lookups\nto complete first, and then wait for fscache_cache-\u003eobject_count == 0 to\navoid the cookie exiting after the volume has been freed and triggering\nthe above issue. Therefore call fscache_withdraw_volume() before calling\ncachefiles_withdraw_objects().\n\nThis way, after setting FSCACHE_CACHE_IS_WITHDRAWN, only the following two\ncases will occur:\n1) fscache_begin_lookup fails in fscache_begin_volume_access().\n2) fscache_withdraw_volume() will ensure that fscache_count_object() has\n   been executed before calling fscache_wait_for_objects().",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-41057",
          "url": "https://www.suse.com/security/cve/CVE-2024-41057"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1228462 for CVE-2024-41057",
          "url": "https://bugzilla.suse.com/1228462"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1229275 for CVE-2024-41057",
          "url": "https://bugzilla.suse.com/1229275"
        }
      ],
      "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_44-default-0:15-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.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_44-default-0:15-150500.2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP5:kernel-livepatch-5_14_21-150500_55_44-default-0:15-150500.2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-01-26T05:03:57Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-41057"
    }
  ]
}



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Sightings

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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.
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  • 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.



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