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wire 2026-05-23
stories 27
RSS Archive Reviews

© 2026 RepoJournal Home Showcase How it works Privacy

$ the-wire · showcase

KERNEL RC5 CLOSES CRITICAL GAPS IN SMB, IO_URING, AND POWER MANAGEMENT

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

Linus pulled three major subsystem fixes overnight that address use-after-free vulnerabilities, uninitialized data leaks to userspace, and frequency computation bugs that affect millions of Intel workstations.

The SMB client stack got its teeth back with a security hardening pass [1], plugging a missing lock condition and a dangerous dentry-after-unmount scenario that could leave dangling references. The io_uring team shipped critical fixes [2] for IORING_OP_WAITID, where uninitialized kernel state was bleeding into userspace, plus a lockdep violation that could deadlock under contention. Power management saw dual fixes [3] for intel_pstate's maximum frequency calculation on Raptor Lake-E and Bartlett Lake, a bug that silently underclocks entire processor families. The DRM subsystem pulled in the usual cleanup work [4] with amdgpu and xe getting their share of fixes, while the block layer plugged a use-after-free in zone resource teardown [5] that could corrupt the worker thread state on zoned devices. This RC5 closes the gap between the current code and production readiness, with no padding.

Action items

References

  1. [1] Merge tag 'v7.1-rc5-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 torvalds/linux ↗
  2. [2] Merge tag 'io_uring-7.1-20260522' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux torvalds/linux ↗
  3. [3] Merge tag 'pm-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm torvalds/linux ↗
  4. [4] Merge tag 'drm-fixes-2026-05-23' of https://gitlab.freedesktop.org/drm/kernel torvalds/linux ↗
  5. [5] block: avoid use-after-free in disk_free_zone_resources() 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 May 23, 2026?
Linus pulled three major subsystem fixes overnight that address use-after-free vulnerabilities, uninitialized data leaks to userspace, and frequency computation bugs that affect millions of Intel workstations. In total, 27 commits landed.
What were the notable Linux updates?
Merge tag 'v7.1-rc5-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6, Merge tag 'io_uring-7.1-20260522' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux, and Merge tag 'pm-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.
♥

$ 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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