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Vulnerabilities

Vulnerability · RLSA-2026:85321

Important: kernel security, bug fix, and enhancement update

Published Oct 21, 2026 · catalog updated Oct 21, 2026 · Important: kernel security, bug

Last checked Oct 21, 2026, 11 days ago.

Open the advisory

Exploitation likelihood is not on this record for RLSA-2026:85321. A missing EPSS score is not a low risk. Compare Important: kernel security, bug with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Important: kernel security, bug).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
Rocky Linux:10 kernel

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678) * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: sctp: diag: reject stale associations in dump_one path (CVE-2026-52917) * kernel: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done (CVE-2026-63801) * kernel: sctp: fix race between sctp_wait_for_connect and peeloff (CVE-2026-63971) * kernel: usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (CVE-2026-63962) * kernel: sctp: avoid auth_enable sysctl UAF during netns teardown (CVE-2026-68162) * kernel: tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (CVE-2026-68117) * kernel: sctp: auth: verify auth requirement when auth_chunk is NULL (CVE-2026-68300) * kernel: sctp: validate stream count in sctp_process_strreset_inreq() (CVE-2026-68315) * kernel: Bluetooth: hci_sync: Fix advertising data UAFs (CVE-2026-74509) * kernel: sctp: keep chunk->transport in step with the list it is queued on (CVE-2026-74588) * kernel: sctp: validate cookie AUTH state before use (CVE-2026-74752) * kernel: smb: client: reject a tree connect response whose byte count is too small (CVE-2026-89631) * kernel: smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (CVE-2026-89633) * kernel: signal: Prevent exec() race (CVE-2026-98256) * kernel: exec: Cleanup POSIX timers right after de_thread() (CVE-2026-98260) Bug Fix(es) and Enhancement(s): * [10.2.z] kselftests: mm: hugepage-mremap: Bail out! mremap: Expected failure, but call succeeded (JIRA:Rocky Linux-181987) * [IBM 10.3 FEAT] zcrypt driver overwrite function - kernel part [rhel-10.2.z] (JIRA:Rocky Linux-245336) * Batch: z-stream xfrm - rhel-10.2.z (NST-Core-26W38) (JIRA:Rocky Linux-256678) * RHIVOS - [backport] S32G Driver Enablement - USB (JIRA:Rocky Linux-257228) * Fix pending kernel issues

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Rocky Linux:10 kernel0 → 0:6.12.0-211.67.1.el10_2

How to fix RLSA-2026:85321

  • Upgrade

    RLSA-2026:85321 lists a fix boundary at 0:6.12.0-211.67.1.el10_2. Compare the installed build with that boundary before you change production.

  • Version check

    Fixed in 0:6.12.0-211.67.1.el10_2

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for RLSA-2026:85321. A missing EPSS score is not a low risk. Compare Important: kernel security, bug with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0 → 0:6.12.0-211.67.1.el10_2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Atlassian Jira security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678) * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: sctp: diag: reject stale associations in dump_one path (CVE-2026-52917) * kernel: tipc: fix slab-use-after-free Read in tip

  2. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    kernel fixed in 0:6.12.0-211.67.1.el10_2

  3. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    kernel fixed in 0:6.12.0-211.67.1.el10_2

  4. Oct 21, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: openvswitch: defer tunnel netdev_put to RCU release (CVE-2026-31678) * kernel: xfrm: espintcp: do not reuse an in-progress partial send (CVE-2026-52935) * kernel: sctp: diag: reject stale associations in dump_one path (CVE-2026-52917) * kernel: tipc: fix slab-use-after-free Read in tip

Sources

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • OpenSSF OSV / OSV ScannerOct 21, 2026