ALSA-2026:89083

Vulnerability from osv_almalinux – Published: 2026-10-24 00:00 – Updated: 2026-10-26 14:54 – Source website
VLAI
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: tcp: restrict SO_ATTACH_FILTER to priv users (CVE-2026-53236)
  • kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)
  • kernel: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)
  • kernel: net: gro: fix double aggregation of flush-marked skbs (CVE-2026-68136)
  • kernel: net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)
  • kernel: net/iucv: fix use-after-free of a severed iucv_path (CVE-2026-68140)
  • kernel: net/sched: serialize qdisc_rtab_list against concurrent get/put (CVE-2026-68138)
  • kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)
  • kernel: mptcp: options: reset DSS fields in case of unexpected size (CVE-2026-80586)
  • kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)
  • kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CVE-2026-89638)
  • kernel: net/iucv: filter frames in afiucv_hs_rcv() by ingress device (CVE-2026-81003)
  • kernel: ipv4: validate checksum_start before completing checksum

(CVE-2026-99999)

Bug Fix(es) and Enhancement(s):

  • Backport 6785011f8b16 ("ipv4: validate checksum_start before completing checksum") [almalinux-8.10.z] (JIRA:AlmaLinux-280584)

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.

References
To clipboard 

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  ],
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.  \n\nSecurity Fix(es):  \n\n  * kernel: tcp: restrict SO_ATTACH_FILTER to priv users (CVE-2026-53236)\n  * kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)\n  * kernel: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)\n  * kernel: net: gro: fix double aggregation of flush-marked skbs (CVE-2026-68136)\n  * kernel: net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)\n  * kernel: net/iucv: fix use-after-free of a severed iucv_path (CVE-2026-68140)\n  * kernel: net/sched: serialize qdisc_rtab_list against concurrent get/put (CVE-2026-68138)\n  * kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)\n  * kernel: mptcp: options: reset DSS fields in case of unexpected size (CVE-2026-80586)\n  * kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)\n  * kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CVE-2026-89638)\n  * kernel: net/iucv: filter frames in afiucv_hs_rcv() by ingress device (CVE-2026-81003)\n  * kernel: ipv4: validate checksum_start before completing checksum\n\n\n(CVE-2026-99999)  \n\nBug Fix(es) and Enhancement(s):  \n\n  * Backport 6785011f8b16 (\"ipv4: validate checksum_start before completing checksum\") [almalinux-8.10.z] (JIRA:AlmaLinux-280584)\n\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.\n",
  "id": "ALSA-2026:89083",
  "modified": "2026-10-26T14:54:47Z",
  "published": "2026-10-24T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:89083"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53236"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-53388"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64378"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68136"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68138"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68140"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68338"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68476"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-80586"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-80824"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-81003"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-89638"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-99999"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2492709"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502255"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2507296"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513163"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513264"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513293"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513343"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2524438"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2528642"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2532122"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2532515"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2553429"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2026-89083.html"
    }
  ],
  "related": [
    "CVE-2026-53236",
    "CVE-2026-53388",
    "CVE-2026-64378",
    "CVE-2026-68136",
    "CVE-2026-68338",
    "CVE-2026-68140",
    "CVE-2026-68138",
    "CVE-2026-68476",
    "CVE-2026-80586",
    "CVE-2026-80824",
    "CVE-2026-89638",
    "CVE-2026-81003",
    "CVE-2026-99999"
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update"
}



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