ALSA-2026:93436 (CVE-2026-63922)

Vulnerability from osv_almalinux – Published: 2026-11-02 00:00 – Updated: 2026-11-09 10:34 – Source website
VLAI
Summary
Important: kernel security update
Details

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

Security Fix(es):

  • kernel: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924)
  • kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922)
  • kernel: af_unix: Fix UAF read of tail->len in unix_stream_data_wait() (CVE-2026-64109)
  • kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)
  • kernel: tipc: require net admin for TIPCv2 netlink mutators (CVE-2026-74283)
  • kernel: smb: client: bound dirent name against end of SMB response in cifs_filldir (CVE-2026-93787)
  • kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability ()

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: ipv6: exthdrs: refresh nh pointer after ipv6_hop_jumbo() (CVE-2026-63924)\n  * kernel: ipv6: exthdrs: refresh nh after handling HAO option (CVE-2026-63922)\n  * kernel: af_unix: Fix UAF read of tail-\u003elen in unix_stream_data_wait() (CVE-2026-64109)\n  * kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)\n  * kernel: tipc: require net admin for TIPCv2 netlink mutators (CVE-2026-74283)\n  * kernel: smb: client: bound dirent name against end of SMB response in cifs_filldir (CVE-2026-93787)\n  * kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability ()\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-2026:93436",
  "modified": "2026-11-09T10:34:19Z",
  "published": "2026-11-02T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:93436"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63922"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63924"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64109"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-72083"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-74283"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-93787"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502326"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502327"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502615"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2516579"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2516935"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2540555"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2559835"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2026-93436.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.redhat.com/security/data/cve/CVE-2026-99284.html"
    }
  ],
  "related": [
    "CVE-2026-63922",
    "CVE-2026-63924",
    "CVE-2026-64109",
    "CVE-2026-72083",
    "CVE-2026-74283",
    "CVE-2026-93787",
    "CVE-2026-99284"
  ],
  "schema_version": "1.7.0",
  "summary": "Important: kernel security update",
  "upstream": [
    "CVE-2026-63922",
    "CVE-2026-63924",
    "CVE-2026-64109",
    "CVE-2026-72083",
    "CVE-2026-74283",
    "CVE-2026-93787",
    "CVE-2026-99284"
  ]
}



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