Not ratedosv:RLSA-2026:99031

    Moderate: kernel-rt 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 and the linked original advisory.

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    Metrics

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    XIEM Effective CVSS

    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?

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    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.

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

    Description

    The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

    Security Fix(es):

    • kernel: drm/amdkfd: hold event_mutex while checkpointing CRIU events (CVE-2026-74446)

    • kernel: drm/amdkfd: fix SMI event cross-process information leak (CVE-2026-97422)

    • kernel: drm/amd/pm: bound pp_dpm_set_pp_table() memcpy (CVE-2026-97427)

    • kernel: drm/amdkfd: Check bounds for allocate_sdma_queue restore_sdma_id (CVE-2026-97497)

    • kernel: drm/amdgpu: validate and share PSP fw_pri_buf copies via psp_copy_fw (CVE-2026-97494)

    • kernel: drm/amdkfd: Check bounds on allocate_doorbell (CVE-2026-97495)

    • kernel: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS (CVE-2026-97493)

    • kernel: drm/amdgpu: fix buffer overflow during vBIOS update (CVE-2026-97425)

    • kernel: net/smc: protect clcsock lifetime in smc_getname (CVE-2026-99032)

    • kernel: kernel: Denial of Service via use-after-free race condition in SCSI tape driver (CVE-2026-99156)

    Bug Fix(es) and Enhancement(s):

    • soft lockup occurs during iomap_finish_ioends (JIRA:Rocky Linux-258946)

    • gfs2: BUG during withdraw [Rocky Linux-8] (JIRA:Rocky Linux-298310)

    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)