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CVE-2026-98930: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix IRQ injection with SIGP Stop and Store Status When __inject_sigp_stop() is called for a Stop and Store Status operation, if the vCPU is running, the interrupt is marked as pending and the status is stored by the thread performing the KVM_RUN IOCTL. If the vCPU is already stopped, the status is stored immediately. Storing the status means writing into userspace, which might fault, and __inject_sigp_stop() is called from do_inject_vcpu() which in turn is always called holding a spinlock, which is obviously an issue. Fix this by returning -EWOULDBLOCK from __inject_sigp_stop(), and adding a bool flag to indicate whether a store status is needed. The callers of do_inject_vcpu() are modified to pass the pointer to the bool flag; whenever a Store Status operation is needed, the callers can now perform it outside the spinlock. Opportunistically refactor kvm_s390_set_irq_state() to use scoped_guard() and __free(). [ Added Fixes tag while picking -- Claudio ]

    Засегнати продукти

    • Linux Linux: 6cddd432e3da5e25eccbc13844d03c871674a62e преди 3bd77c59576b1d447fd56cc689ae9523a334b924; 6cddd432e3da5e25eccbc13844d03c871674a62e преди a379ac504fcb8c6fc2aa36203f5489b9581eb2e0; 6cddd432e3da5e25eccbc13844d03c871674a62e преди d0e3bf633f0585a0c2c2105ea7723777d764fae5; 6cddd432e3da5e25eccbc13844d03c871674a62e преди d343407b728a80b74be3c24b59f15e60289ea527
    • Linux Linux: 4.0; преди 4.0; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък

    История

    • 23 октомври 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-98930: Linux | freedomonline.bg