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CVE-2026-68286: Linux

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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: drop_monitor: perform u64_stats updates under IRQ-disabled section In net_dm_packet_trace_kfree_skb_hit() and net_dm_hw_trap_packet_probe(), u64_stats_update_begin() / u64_stats_inc() / u64_stats_update_end() were called after spin_unlock_irqrestore(&...drop_queue.lock, flags), when local IRQs had already been re-enabled. Tracepoint probes can execute in IRQ or softirq context. On 32-bit architectures, u64_stats_update_begin() disables preemption but not interrupts, relying on seqcount writes. If a nested interrupt occurs on the same CPU during the 64-bit stats update, the reentrant seqcount update can corrupt the seqcount state or stats value. Fix this by performing the 64-bit per-CPU stats update before releasing drop_queue.lock via spin_unlock_irqrestore(), ensuring local interrupts remain disabled during the u64_stats update.

    Засегнати продукти

    • Linux Linux: e9feb58020f952f7d9de785ede9a7d54ab1eda5c преди dd8472526a04f2185afd792b8041a912a7d75d85; e9feb58020f952f7d9de785ede9a7d54ab1eda5c преди 3454c729ee8aa682ec871f1b174b047f731933ae; e9feb58020f952f7d9de785ede9a7d54ab1eda5c преди be9b121894d6ad44f0011f79543a2e3245979497; e9feb58020f952f7d9de785ede9a7d54ab1eda5c преди 7d857cf5f0120bb0e020fa20b03bd21b9d3e0c04; e9feb58020f952f7d9de785ede9a7d54ab1eda5c преди d5e2cd2bc8ae36617346b3a54ee9da61d866bf92; e9feb58020f952f7d9de785ede9a7d54ab1eda5c преди fd098a23bf8fda7eae48db9b06e7c34fc4d228fa
    • Linux Linux: 5.4; преди 5.4; 6.1.189 до 6.1.*; 6.6.158 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък

    История

    • 10 август 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-68286: Linux | freedomonline.bg