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The Wire · Showcase

KSMBD FIXES LAND AS BTRFS SQUOTA GETS PATCHED

By RepoJournal · Filed · About Linux

Linux 7.1-rc5 ships critical SMB server and filesystem fixes overnight, with ksmbd addressing security descriptor validation and btrfs closing gaps in quota tracking that could silently corrupt accounting.

The ksmbd server pull [1] lands three fixes that matter for production SMB deployments: SID validation in ACL inheritance prevents privilege escalation vectors, durable reconnect error handling fixes file lifetime issues, and tmpfile creation now correctly promotes deletion flags on close. Btrfs squota [2] gets a surgical batch addressing the quota invariant violations that made subvolume deletion risky, adding rescheduling points to prevent preemption hangs on PREEMPT_NONE kernels, and properly initializing extent tracking during squota enablement. Driver core [4] removes a subtle leak where software nodes stayed registered after platform device release, causing -EBUSY on subsequent registrations with the same node. I2C fixes [5] patch an smbus uninitialization bug and tegra mutex handling that could lose transfer errors, while LoongArch [3] reworks KASLR to prevent initrd overlap and fixes kprobes fatal error handling.

Action items

References

  1. [1] Merge tag 'v7.1-rc5-ksmbd-server-fixes' of git://git.samba.org/ksmbd torvalds/linux
  2. [2] Merge tag 'for-7.1-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux torvalds/linux
  3. [3] Merge tag 'loongarch-fixes-7.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson torvalds/linux
  4. [4] Merge tag 'driver-core-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core torvalds/linux
  5. [5] Merge tag 'i2c-for-7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux torvalds/linux

FAQ

What changed in Linux on May 24, 2026?
Linux 7.1-rc5 ships critical SMB server and filesystem fixes overnight, with ksmbd addressing security descriptor validation and btrfs closing gaps in quota tracking that could silently corrupt accounting.
What should Linux teams do about it?
Test ksmbd deployments against new SID validation in security descriptors • Review btrfs squota implementations for extent tracking initialization • Verify platform device registration patterns don't reuse software nodes
Which Linux repositories shipped on May 24, 2026?
torvalds/linux

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