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The Wire · Showcase

SMB FIXES AND FUSE OVERHAUL LAND IN 7.2-RC1

By RepoJournal · Filed · About Linux

Linux 7.2-rc1 merges critical SMB client and server patches alongside a major FUSE refactor that separates transport and filesystem layers for the first time.

Steve French's SMB client updates [1] hit the tree with races in cifsd thread creation patched, a potential out-of-bounds read in security descriptor parsing closed, and cached directory entries fixed on unlink/rmdir/rename. The corresponding server-side merge [2] addresses use-after-free and out-of-bounds issues while adding SMB compression support both at rest and over the wire, a significant capability upgrade for file servers. Fuse gets its most ambitious restructure in years [3], separating transport and filesystem layers, backporting bug fixes from the 6.x era, and adding io-uring and passthrough subsystems with dedicated maintainers. AHCI driver updates [4] now fail to probe if BAR size is undersized for the configured port count, catching firmware misconfigurations before they cause data loss. RDMA subsystem [5] pulls in extensive AI-driven bug fixes across mlx5, hns, rxe, and other drivers, tackling overflow arithmetic, races, and error path leaks.

Action items

References

  1. [1] Merge tag 'v7.2-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 torvalds/linux
  2. [2] Merge tag 'v7.2-rc-part1-ksmbd-fixes' of git://git.samba.org/ksmbd torvalds/linux
  3. [3] Merge tag 'fuse-update-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse torvalds/linux
  4. [4] Merge tag 'ata-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux torvalds/linux
  5. [5] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma torvalds/linux

FAQ

What changed in Linux on June 19, 2026?
Linux 7.2-rc1 merges critical SMB client and server patches alongside a major FUSE refactor that separates transport and filesystem layers for the first time.
What should Linux teams do about it?
Test SMB compression with workloads targeting ksmbd; verify cifsd thread behavior under load • Validate AHCI driver initialization on hardware with undersized BARs before production rollout • Review FUSE transport/fs separation impact on custom FUSE daemon implementations
Which Linux repositories shipped on June 19, 2026?
torvalds/linux

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