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    Linux CVE-2026-31680: RCU lifetime mismatch in IPv6 flow label can cause kernel crashes

    A newly published Linux kernel vulnerability, CVE-2026-31680, highlights a familiar but consequential class of networking bugs: a lifetime mismatch in code protected by RCU, Linux’s high-performance read-side synchronization model. The flaw sits in the IPv6 flow label implementation, where a...
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    • ipv6 flow label linux kernel procfs security rcu use-after-free
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    • Forum: Security Alerts
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