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wire 2026-07-18
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KERNEL PATCHES MEMORY LEAKS ACROSS LLC, POWERPC, AND MMC SUBSYSTEMS

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

Linus Torvalds
1 person shipped this
Linus Torvalds @torvalds 4 cited

The kernel shipped critical reference counting fixes that plug resource leaks in networking, power management, and storage drivers before they cascade into production.

The LLC subsystem landed a refcount leak fix [1] that was introduced by a prior SAP reference counting patch. llc_sap_add_socket() takes a reference for each socket, but an extra reference in the accept path wasn't being released, causing sockets to never fully deallocate. This is the kind of slow bleed that tanks uptime on systems handling LLC traffic. PowerPC got a sweep of stability improvements [2] including VPA PMU support for KVM, proper starttime initialization for CPU accounting, and Power11 processor flag support. The SoC tree shipped a critical memory corruption fix for Renesas devices [3] alongside firmware fixes for ARM SCMI and FF-A runtime issues. MMC subsystem picked up multiple critical fixes [4] including RPMB device unregister ordering, SDIO suspend/resume support for i.MX systems, and a use-after-free in the vub300 driver. MTD also landed virt-concat support fixes [5] and reverted a uclinux map driver removal that broke deployments using it.

Action items

References

  1. [1] llc: fix SAP refcount leak when creating incoming sockets torvalds/linux ↗
  2. [2] Merge tag 'powerpc-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux torvalds/linux ↗
  3. [3] Merge tag 'soc-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc torvalds/linux ↗
  4. [4] Merge tag 'mmc-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc torvalds/linux ↗
  5. [5] Merge tag 'mtd/fixes-for-7.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux 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 July 18, 2026?
The kernel shipped critical reference counting fixes that plug resource leaks in networking, power management, and storage drivers before they cascade into production. In total, 50 commits landed.
Who contributed to Linux on July 18, 2026?
1 developer shipped this update, including Linus Torvalds.
What were the notable Linux updates?
llc: fix SAP refcount leak when creating incoming sockets, Merge tag 'powerpc-7.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux, and Merge tag 'soc-fixes-7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.
♥

$ 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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