SUSE-SU-2025:03138-1

Vulnerability from csaf_suse - Published: 2025-09-10 12:34 - Updated: 2025-09-10 12:34
Summary
Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)
Severity
Important
Notes
Title of the patch: Security update for the Linux Kernel (Live Patch 62 for SLE 12 SP5)
Description of the patch: This update for the Linux Kernel 4.12.14-122_234 fixes several issues. The following security issues were fixed: - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237930). - CVE-2025-38000: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (bsc#1245775). - CVE-2025-38212: ipc: fix to protect IPCS lookups using RCU (bsc#1246030).
Patchnames: SUSE-2025-3138,SUSE-SLE-Live-Patching-12-SP5-2025-3138
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-2022-49053
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2025-38000
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
CVE-2025-38212
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
To clipboard 

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          "text": "https://www.suse.com/security/cve/CVE-2022-49053"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: tcmu: Fix possible page UAF\n\ntcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not\ntake refcount properly and just returns page pointer. When\ntcmu_try_get_data_page() returns, the returned page may have been freed by\ntcmu_blocks_release().\n\nWe need to get_page() under cmdr_lock to avoid concurrent\ntcmu_blocks_release().",
          "title": "CVE description"
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        {
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          "summary": "SUSE Bug 1237918 for CVE-2022-49053",
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        {
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            "version": "3.1"
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      "title": "CVE-2022-49053"
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          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nsch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()\n\nWhen enqueuing the first packet to an HFSC class, hfsc_enqueue() calls the\nchild qdisc\u0027s peek() operation before incrementing sch-\u003eq.qlen and\nsch-\u003eqstats.backlog. If the child qdisc uses qdisc_peek_dequeued(), this may\ntrigger an immediate dequeue and potential packet drop. In such cases,\nqdisc_tree_reduce_backlog() is called, but the HFSC qdisc\u0027s qlen and backlog\nhave not yet been updated, leading to inconsistent queue accounting. This\ncan leave an empty HFSC class in the active list, causing further\nconsequences like use-after-free.\n\nThis patch fixes the bug by moving the increment of sch-\u003eq.qlen and\nsch-\u003eqstats.backlog before the call to the child qdisc\u0027s peek() operation.\nThis ensures that queue length and backlog are always accurate when packet\ndrops or dequeues are triggered during the peek.",
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    {
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          "text": "https://www.suse.com/security/cve/CVE-2025-38212"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nipc: fix to protect IPCS lookups using RCU\n\nsyzbot reported that it discovered a use-after-free vulnerability, [0]\n\n[0]: https://lore.kernel.org/all/67af13f8.050a0220.21dd3.0038.GAE@google.com/\n\nidr_for_each() is protected by rwsem, but this is not enough.  If it is\nnot protected by RCU read-critical region, when idr_for_each() calls\nradix_tree_node_free() through call_rcu() to free the radix_tree_node\nstructure, the node will be freed immediately, and when reading the next\nnode in radix_tree_for_each_slot(), the already freed memory may be read.\n\nTherefore, we need to add code to make sure that idr_for_each() is\nprotected within the RCU read-critical region when we call it in\nshm_destroy_orphaned().",
          "title": "CVE description"
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            "SUSE Linux Enterprise Live Patching 12 SP5:kgraft-patch-4_12_14-122_234-default-14-2.1.x86_64"
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        }
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      "title": "CVE-2025-38212"
    }
  ]
}


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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.