rlsa-2026:57252
Vulnerability from osv_rocky
Published
2026-08-21 06:05
Modified
2026-08-21 12:10
Summary
Important: kernel security, bug fix, and enhancement update
Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233)

  • kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206)

  • kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CVE-2026-43237)

  • kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991)

  • kernel: drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CVE-2026-45878)

  • kernel: ip6_gre: Use cached t->net in ip6erspan_changelink() (CVE-2026-46120)

  • kernel: sched/psi: fix race between file release and pressure write (CVE-2026-52991)

  • kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CVE-2026-53143)

  • kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136)

  • kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189)

  • kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329)

  • kernel: drm/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356)

  • kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374)

  • kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884)

  • kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007)

  • kernel: memfd: deny writeable mappings when implying SEAL_WRITE (CVE-2026-63952)

  • kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (CVE-2026-63888)

  • kernel: drm/amdgpu: fix amdgpu_hmm_range_get_pages (CVE-2026-63879)

  • kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CVE-2026-64048)

  • kernel: drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CVE-2026-64219)

  • kernel: smb: client: fix double-free in SMB2_open() replay (CVE-2026-64382)

  • kernel: smb: client: mask server-provided mode to 07777 in modefromsid (CVE-2026-64379)

  • kernel: smb: client: fix query_info() replay double-free (CVE-2026-64386)

  • kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race (CVE-2026-64560)

  • kernel: smb: client: validate DFS referral PathConsumed (CVE-2026-68343)

  • kernel: smb/client: handle overlapping allocated ranges in fallocate (CVE-2026-68388)

Bug Fix(es) and Enhancement(s):

  • kernel 5.14.0-687.5.1.el9_8 breaks wifi when using FIPS (JIRA:Rocky Linux-181065)

  • vhost: reset the vring metadata cache on vring reconfiguration [rhel-9.8.z] (JIRA:Rocky Linux-224549)

  • cifs: smb1 directory listings from xp server returning EINVAL and EIO [rhel-9.8.z] (JIRA:Rocky Linux-235811)

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.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
https://errata.rockylinux.org/RLSA-2026:57252 ADVISORY
https://bugzilla.redhat.com/show_bug.cgi?id=2467135 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2467156 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2467202 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2482113 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2482124 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2482614 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2492403 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2492719 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2492768 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2492788 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2495941 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2495950 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502188 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502321 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502361 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502422 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502443 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502463 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2502589 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2506790 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2507042 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2507135 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2507216 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2508504 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2513373 REPORT
https://bugzilla.redhat.com/show_bug.cgi?id=2513470 REPORT
https://access.redhat.com/errata/RHSA-2026:57252 ADVISORY
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:5.14.0-687.41.1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:57252"
  },
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CVE-2026-43233)\n\n* kernel: drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CVE-2026-43206)\n\n* kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CVE-2026-43237)\n\n* kernel: udf: fix partition descriptor append bookkeeping (CVE-2026-45991)\n\n* kernel: drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CVE-2026-45878)\n\n* kernel: ip6_gre: Use cached t-\u003enet in ip6erspan_changelink() (CVE-2026-46120)\n\n* kernel: sched/psi: fix race between file release and pressure write (CVE-2026-52991)\n\n* kernel: drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CVE-2026-53143)\n\n* kernel: drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CVE-2026-53136)\n\n* kernel: mm/huge_memory: update file PMD counter before folio_put() (CVE-2026-53189)\n\n* kernel: drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CVE-2026-53329)\n\n* kernel: drm/i915/gem: Fix phys BO pread/pwrite with offset (CVE-2026-53356)\n\n* kernel: drm/amdgpu: zero-initialize GART table on allocation (CVE-2026-53374)\n\n* kernel: drm/i915: Fix potential UAF in TTM object purge (CVE-2026-63884)\n\n* kernel: netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CVE-2026-64007)\n\n* kernel: memfd: deny writeable mappings when implying SEAL_WRITE (CVE-2026-63952)\n\n* kernel: scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (CVE-2026-63888)\n\n* kernel: drm/amdgpu: fix amdgpu_hmm_range_get_pages (CVE-2026-63879)\n\n* kernel: net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CVE-2026-64048)\n\n* kernel: drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CVE-2026-64219)\n\n* kernel: smb: client: fix double-free in SMB2_open() replay (CVE-2026-64382)\n\n* kernel: smb: client: mask server-provided mode to 07777 in modefromsid (CVE-2026-64379)\n\n* kernel: smb: client: fix query_info() replay double-free (CVE-2026-64386)\n\n* kernel: posix-cpu-timers: Prevent UAF caused by non-leader exec() race (CVE-2026-64560)\n\n* kernel: smb: client: validate DFS referral PathConsumed (CVE-2026-68343)\n\n* kernel: smb/client: handle overlapping allocated ranges in fallocate (CVE-2026-68388)\n\nBug Fix(es) and Enhancement(s):\n\n* kernel 5.14.0-687.5.1.el9_8 breaks wifi when using FIPS  (JIRA:Rocky Linux-181065)\n\n* vhost: reset the vring metadata cache on vring reconfiguration [rhel-9.8.z] (JIRA:Rocky Linux-224549)\n\n* cifs: smb1 directory listings from xp server returning EINVAL and EIO [rhel-9.8.z] (JIRA:Rocky Linux-235811)\n\nFor 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.",
  "id": "RLSA-2026:57252",
  "modified": "2026-08-21T12:10:42.052629Z",
  "published": "2026-08-21T06:05:24.924335Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:57252"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467135"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467156"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467202"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482113"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482124"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482614"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492403"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492719"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492768"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492788"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2495941"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2495950"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502188"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502321"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502361"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502422"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502443"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502463"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502589"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506790"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507042"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507135"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507216"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2508504"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513373"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513470"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:57252"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2026-43206",
    "CVE-2026-43233",
    "CVE-2026-43237",
    "CVE-2026-45878",
    "CVE-2026-45991",
    "CVE-2026-46120",
    "CVE-2026-52991",
    "CVE-2026-53136",
    "CVE-2026-53143",
    "CVE-2026-53189",
    "CVE-2026-53329",
    "CVE-2026-53356",
    "CVE-2026-53374",
    "CVE-2026-63879",
    "CVE-2026-63884",
    "CVE-2026-63888",
    "CVE-2026-63952",
    "CVE-2026-64007",
    "CVE-2026-64048",
    "CVE-2026-64219",
    "CVE-2026-64379",
    "CVE-2026-64382",
    "CVE-2026-64386",
    "CVE-2026-64560",
    "CVE-2026-68343",
    "CVE-2026-68388"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.