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wire 2026-06-18
stories 28
RSS Archive Reviews

© 2026 RepoJournal Home Showcase How it works Privacy

$ the-wire · showcase

KERNEL 7.2 SHIPPING WITH BPF ARENA BREAKTHROUGH AND NETWORKING OVERHAUL

By RepoJournal · Filed · About Linux · Composed from the cited sources · methodology

BPF kfuncs can now access arena pointers directly after the kernel lands fault recovery on scratch pages, while the networking stack continues its multi-cycle assault on rtnl_lock contention.

The merge window closes with major architectural work across three pillars. BPF gets its most significant arena upgrade yet [1]: lockless empty-slot installs via ptep_try_set() on x86 and arm64 eliminate a class of page fault crashes that blocked production use of direct arena access. This lands after careful cross-tree coordination with sched-ext, unblocking kfunc patterns that were previously off the table. Networking continues its systematic rtnl_lock removal campaign [2], with IPv6 multicast routing and ethtool now operating without the global lock on modern drivers. Qdisc dump callbacks are being refactored in preparation for the next phase. SELinux hardens policy loading with additional verification stages [3], addressing validation gaps in the policy parser that Christian Göttsche identified. LSM gets a cleanup [4] that leverages existing xattr helpers after NFS code shipped in v7.0. DRM rounds out the merge with xe platform support and amdgpu HDMI 2.1 FRL handling [5], plus a scheduler fairness rewrite that affects every GPU workload on the tree.

Action items

References

  1. [1] Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next torvalds/linux ↗
  2. [2] Merge tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next torvalds/linux ↗
  3. [3] Merge tag 'selinux-pr-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux torvalds/linux ↗
  4. [4] Merge tag 'lsm-pr-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm torvalds/linux ↗
  5. [5] Merge tag 'drm-next-2026-06-17' of https://gitlab.freedesktop.org/drm/kernel torvalds/linux ↗

$ ls linux/reviews/ # the step-back reads

the week in review Omarchy polkit PAM stack skipped system-auth the month in review Linux 7.3 rc cycle fixes cgroup kill, SMB corruption
Full archive → Weekly reviews →

Quick answers

What shipped in Linux on June 18, 2026?
BPF kfuncs can now access arena pointers directly after the kernel lands fault recovery on scratch pages, while the networking stack continues its multi-cycle assault on rtnl_lock contention. In total, 28 commits landed.
What were the notable Linux updates?
Merge tag 'bpf-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next, Merge tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next, and Merge tag 'selinux-pr-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux.
♥

$ log Linux --recent

drm-fixes backs out dma-buf debug, vfs closes pathwalk use-after-frees 29 shipped Netlink stops hashing the net pointer, stmmac clears a stuck RGMII interrupt 27 shipped Poly1305 carry fix lands, Omarchy locks down N1x laptops and idle fingerprint readers 23 shipped Omarchy copies agent logins over SSH, kernel queues 7.4 merges 106 shipped

$ log --all # elsewhere on the wire

Alignment & Post-training verl rejects conflicting vLLM engine_kwargs, open-instruct adds MILES OPD behind a Megatron learner Interpretability nnsight 0.8.0 cuts import time from 7.6s to 1.6s

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

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