RHSA-2026:0643

Vulnerability from csaf_redhat - Published: 2026-01-15 01:11 - Updated: 2026-10-29 12:57
Summary
Red Hat Security Advisory: kernel security update
Severity
Important
Notes
Topic: An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: smb: client: Fix use-after-free in cifs_fill_dirent (CVE-2025-38051) * kernel: scsi: qla2xxx: Wait for io return on terminate rport (CVE-2023-53322) * kernel: scsi: ses: Fix possible desc_ptr out-of-bounds accesses (CVE-2023-53675) * kernel: i40e: fix idx validation in config queues msg (CVE-2025-39971) * kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() (CVE-2025-68285) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
CVE-2023-53322

A flaw was found in the Linux kernel’s SCSI driver component qla2xxx (used with FCP-2 devices). When the terminate_rport_io() function is invoked , the driver may exit cleanup before all outstanding I/O operations have returned. This can lead to a use-after-free condition when resources are freed while I/Os are still pending.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 - Use After Free
Affected products
Product Identifier Version Remediation
Unresolved product id: BaseOS-8.2.0.Z.AUS:bpftool-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:bpftool-debuginfo-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-0:4.18.0-193.181.1.el8_2.src —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-abi-whitelists-0:4.18.0-193.181.1.el8_2.noarch —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-core-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-core-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-debuginfo-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-devel-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-modules-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-modules-extra-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debuginfo-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debuginfo-common-x86_64-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-devel-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-doc-0:4.18.0-193.181.1.el8_2.noarch —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-modules-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-modules-extra-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-tools-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-tools-debuginfo-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-tools-libs-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:perf-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:perf-debuginfo-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:python3-perf-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Unresolved product id: BaseOS-8.2.0.Z.AUS:python3-perf-debuginfo-0:4.18.0-193.181.1.el8_2.x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
CVE-2023-53675

A bounds-checking flaw was found in the Linux kernel Small Computer System Interface Enclosure Services driver in the way descriptor pointers are validated while processing enclosure data. Missing checks could allow an out-of-bounds access during parsing. A local user could use this flaw to crash the system while enclosure data is processed, resulting in a denial of service.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-125 - Out-of-bounds Read
Affected products
Fixed 25 products, the same list as for CVE-2023-53322
Threats
Impact Moderate
CVE-2025-38051

A use-after-free flaw was found in cifs_fill_dirent in fs/cifs/readdir.c in smb client in the Linux Kernel. This flaw could allow an attacker to crash the system due to race problem. This vulnerability could even lead to a kernel information leak problem.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-825 - Expired Pointer Dereference
Affected products
Fixed 25 products, the same list as for CVE-2023-53322
Threats
Impact Moderate
CVE-2025-39971

A flaw was found in the Linux kernel in the Intel i40e network driver such that in the function i40e_vc_config_queues_msg(), when iterating over vf->ch[idx], the idx value is not properly validated against the range of active/initialized traffic classes (TCs). An attacker with local privileges could supply a malformed value causing an out-of-bounds access, potentially leading to memory corruption, system crash, or possible arbitrary code execution.

7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CWE-787 - Out-of-bounds Write
Affected products
Fixed 25 products, the same list as for CVE-2023-53322
Threats
Impact Moderate
CVE-2025-39973

A flaw was identified in the Intel “i40e” Ethernet driver in the Linux Kernel where the ring_len parameter supplied by a VF (virtual function) is passed unchecked to the hardware memory context. If a malicious Virtual function provides a too-large or misaligned ring_len, it may allow the device to configure excessive Tx/Rx queue length leading to memory corruption or other undefined behaviour in the driver context.

7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-131 - Incorrect Calculation of Buffer Size
Affected products
Fixed 25 products, the same list as for CVE-2023-53322
Threats
Impact Moderate
CVE-2025-68285

A use-after-free vulnerability was found in the Ceph client session initialization in the Linux kernel. The have_mon_and_osd_map() function checks map epochs without holding the appropriate locks, racing with concurrent map updates that free the old map. This can result in dereferencing freed memory during CephFS or RBD mount operations.

5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-825 - Expired Pointer Dereference
Affected products
Fixed 25 products, the same list as for CVE-2023-53322
Threats
Impact Moderate
References
URL Category
https://access.redhat.com/errata/RHSA-2026:0643 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2373329 external
https://bugzilla.redhat.com/show_bug.cgi?id=2395891 external
https://bugzilla.redhat.com/show_bug.cgi?id=2402293 external
https://bugzilla.redhat.com/show_bug.cgi?id=2404108 external
https://bugzilla.redhat.com/show_bug.cgi?id=2422801 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2023-53322 self
https://bugzilla.redhat.com/show_bug.cgi?id=2395891 external
https://www.cve.org/CVERecord?id=CVE-2023-53322 external
https://nvd.nist.gov/vuln/detail/CVE-2023-53322 external
https://lore.kernel.org/linux-cve-announce/202509… external
https://access.redhat.com/security/cve/CVE-2023-53675 self
https://bugzilla.redhat.com/show_bug.cgi?id=2402293 external
https://www.cve.org/CVERecord?id=CVE-2023-53675 external
https://nvd.nist.gov/vuln/detail/CVE-2023-53675 external
https://lore.kernel.org/linux-cve-announce/202510… external
https://access.redhat.com/security/cve/CVE-2025-38051 self
https://bugzilla.redhat.com/show_bug.cgi?id=2373329 external
https://www.cve.org/CVERecord?id=CVE-2025-38051 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38051 external
https://lore.kernel.org/linux-cve-announce/202506… external
https://access.redhat.com/security/cve/CVE-2025-39971 self
https://bugzilla.redhat.com/show_bug.cgi?id=2404108 external
https://www.cve.org/CVERecord?id=CVE-2025-39971 external
https://nvd.nist.gov/vuln/detail/CVE-2025-39971 external
https://lore.kernel.org/linux-cve-announce/202510… external
https://access.redhat.com/security/cve/CVE-2025-39973 self
https://bugzilla.redhat.com/show_bug.cgi?id=2404116 external
https://www.cve.org/CVERecord?id=CVE-2025-39973 external
https://nvd.nist.gov/vuln/detail/CVE-2025-39973 external
https://lore.kernel.org/linux-cve-announce/202510… external
https://access.redhat.com/security/cve/CVE-2025-68285 self
https://bugzilla.redhat.com/show_bug.cgi?id=2422801 external
https://www.cve.org/CVERecord?id=CVE-2025-68285 external
https://nvd.nist.gov/vuln/detail/CVE-2025-68285 external
https://lore.kernel.org/linux-cve-announce/202512… external
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          "text": "This Moderate impact flaw in the Linux kernel\u0027s SMB client (CIFS) can lead to a system crash or information disclosure due to a race problem, leading to a use-after-free vulnerability during directory operations. Red Hat Enterprise Linux 8, 9, and 10 are affected when utilizing the CIFS client functionality.",
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "title": "Vulnerability description"
        },
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          "category": "summary",
          "text": "kernel: i40e: fix idx validation in config queues msg",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422801"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2025-68285",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-68285"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-68285",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68285"
        },
        {
          "category": "external",
          "summary": "https://lore.kernel.org/linux-cve-announce/2025121638-CVE-2025-68285-8339@gregkh/T",
          "url": "https://lore.kernel.org/linux-cve-announce/2025121638-CVE-2025-68285-8339@gregkh/T"
        }
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      "release_date": "2025-12-16T00:00:00+00:00",
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          "category": "vendor_fix",
          "date": "2026-01-15T01:11:08+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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            "integrityImpact": "NONE",
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
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      ],
      "title": "kernel: libceph: fix potential use-after-free in have_mon_and_osd_map()"
    }
  ]
}



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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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