Not ratedosv:RLSA-2026:93412

    Important: kernel security, bug fix, and enhancement update

    Published Sources: OSV

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    What is affected, what to do

    The available sources name no fixed version. Check the vendor guidance in the references below.

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    Metrics

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    Priority

    No value is available for this vulnerability.

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    CVSS v3

    No value is available for this vulnerability.

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    EPSS score

    No value is available for this vulnerability.

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    Severity
    Not rated
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    30.00 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

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    no public PoC known
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

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    Published

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

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    Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

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    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

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

    Security Fix(es):

    • kernel: sctp: stream: fully roll back denied add-stream state (CVE-2026-52929)

    • kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228)

    • kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270)

    • kernel: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path (CVE-2026-64303)

    • kernel: mptcp: pm: userspace: fix use-after-free in get_local_id (CVE-2026-68169)

    • 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: Bluetooth: mgmt: fix UAF in pair command cancellation (CVE-2026-74510)

    • kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582)

    • kernel: mptcp: options: reset DSS fields in case of unexpected size (CVE-2026-80586)

    • kernel: entry: Fix seccomp bypass after ptrace with TSYNC (CVE-2026-89603)

    • kernel: scsi: target: iscsi: Reserve a terminator byte for the login payload (CVE-2026-90011)

    • kernel: virtio-fs: avoid double-free on failed queue setup (CVE-2026-93827)

    • kernel: smb: client: bound dirent name against end of SMB response in cifs_filldir (CVE-2026-93787)

    • kernel: xfrm: hold net_device reference under RCU in bundle creation (CVE-2026-98364)

    • kernel: ipv4: free inet_opt and ireq_opt after an RCU grace period (CVE-2026-98432)

    • kernel: KVM: arm64: Transfer the hyp stack pages out of the host stage-2 (CVE-2026-98466)

    • kernel: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() (CVE-2026-98725)

    • kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability ()

    Bug Fix(es) and Enhancement(s):

    • kernel panic in percpu_counter_add_batch() via submit_bio_noacct() due to NULL pointer (JIRA:Rocky Linux-250378)

    • ipv4: ip_gre: make ipgre_header() robust (rhel-9.8.z) (JIRA:Rocky Linux-271127)

    • ip6_gre: make ip6gre_header() robust (rhel-9.8.z) (JIRA:Rocky Linux-271130)

    • Backport "sched: The newidle balance regression" series to rhel 9.8 [rhel-9.8.z] (JIRA:Rocky Linux-288067)

    • Rocky Linux is missing support for conntrack zone filtering in dump/delete requests (9.10) [rhel-9.8.z] (JIRA:Rocky Linux-291352)

    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.

    Source: OSV (Open Source Vulnerabilities)