Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bpf: Makes bpfrefcountacquire failable for non-owning references This patch fixes an incorrect assumption made in the original bpfrefcount series 0. Specifically, it assumes that the BPF program calling bpfrefcountacquire on a...

UBUNTU-CVE-2023-53645

In the Linux kernel, the following vulnerability has been resolved: bpf: Make bpfrefcountacquire fallible for non-owning refs This patch fixes an incorrect assumption made in the original bpfrefcount series 0, specifically that the BPF program calling bpfrefcountacquire on some node can always...

CVE-2023-53645 bpf: Make bpf_refcount_acquire fallible for non-owning refs

In the Linux kernel, the following vulnerability has been resolved: bpf: Make bpfrefcountacquire fallible for non-owning refs This patch fixes an incorrect assumption made in the original bpfrefcount series 0, specifically that the BPF program calling bpfrefcountacquire on some node can always...

kernel: bpf: Make bpf_refcount_acquire fallible for non-owning refs

A memory-safety flaw was found in the Linux kernel extended Berkeley Packet Filter eBPF subsystem in the way reference counts are acquired for objects after a failed tree insertion. When a program attempts to acquire a reference to a node that may already have been released, the reference count...