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4 articles tagged #Linux.
P.01A ripgrep crash on musl looked like an allocator bug, then a threading bug. The real cause was a race in recent Linux kernels. The chain, and the lesson.
P.02A race in the Linux kernel's epoll subsystem lets any local user reach root, with an exploit that works 99% of the time. Who's affected, and what to patch.
P.03A use-after-free in Linux KVM, present since 2010, lets an untrusted guest crash or compromise its host. Fixed kernels shipped July 4. Who's exposed.
P.04eBPF lets you attach programs to any kernel hook — network packets, system calls, function calls — without patching the kernel or rebooting. Here's what application developers actually need to know.