Who contributed to Linux on May 16, 2026?

1 developer shipped this update, including svartkanin.

What were the notable Linux updates?

Merge tag 'io_uring-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux, Merge tag 'v7.1-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6, and Merge tag 'xfs-fixes-7.1-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.

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The Wire · Showcase

IO_URING USE-AFTER-FREE FIX LANDS ALONGSIDE CRYPTO DEADLOCK PATCH

By RepoJournal · Filed 06:02 UTC on May 16, 2026 · About Linux

1 person shipped this

svartkanin @svartkanin 1 cited

Linus pulled a critical io_uring thread pool fix that closes a use-after-free vulnerability in the io-wq hashing layer, while Herbert Xu's crypto stack tackles a rhashtable deadlock that could freeze systems under memory pressure.

The io_uring fix [1] addresses a hashing issue in the io-wq thread pool that could trigger use-after-free conditions, a high-severity bug for any workload relying on async I/O. Herbert Xu's crypto pull [2] lands a companion fix for the same underlying rhashtable problem: the merger introduces kvfree_atomic() to prevent blocking operations on the atomic path, plus a new bucket_table_free_atomic() helper that eliminates a potential deadlock when xattr processing contends with memory reclamation. XFS [3] and Btrfs [4] both landed small but necessary fixes around block group initialization and memory allocation warnings respectively. The documentation tree [5] merged Willy Tarreau's new security threat model document, intended to guide reporters on what constitutes a kernel security bug. Arch Linux's archinstall landed a usability win with enhanced log sharing [6] that now previews uploads before confirmation, while the omarchy subsystem cleaned house by removing obsolete suspend-then-hibernate cleanup steps [7].

Action items

→ Pull latest mainline to pick up io_uring use-after-free fix torvalds/linux [immediate]
→ Monitor rhashtable behavior in production if you run heavy xattr workloads torvalds/linux [monitor]
→ Update archinstall if you deploy Arch Linux installations with log sharing archlinux/archinstall [plan]

References

[1] Merge tag 'io_uring-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux torvalds/linux
[2] Merge tag 'v7.1-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 torvalds/linux
[3] Merge tag 'xfs-fixes-7.1-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux torvalds/linux
[4] Merge tag 'for-7.1-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux torvalds/linux
[5] Merge tag 'docs-7.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux torvalds/linux
[6] Enhance log sharing capability ↗ archlinux/archinstall
[7] Remove suspend-then-hibernate cleanup steps (#5829) basecamp/omarchy

Quick answers

What shipped in Linux on May 16, 2026?: Linus pulled a critical io_uring thread pool fix that closes a use-after-free vulnerability in the io-wq hashing layer, while Herbert Xu's crypto stack tackles a rhashtable deadlock that could freeze systems under memory pressure. In total, 45 commits and 5 pull requests landed.
Who contributed to Linux on May 16, 2026?: 1 developer shipped this update, including svartkanin.
What were the notable Linux updates?: Merge tag 'io_uring-7.1-20260515' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux, Merge tag 'v7.1-p4' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6, and Merge tag 'xfs-fixes-7.1-rc4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.

IO_URING FIXES AND SOCKMAP USE-AFTER-FREE PATCH LAND IN 7.2-RC

Linus merged critical io_uring corrections and a high-impact sockmap race condition fix that closes a threading vulnerability in TCP BPF message handling.

infra 83 shipped 1-min read

Linux 1 day ago

KERNEL PATCHES CLOSE NAMESPACE PRIVILEGE ESCALATION GAPS IN TUNNEL DRIVERS

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Linux 2 days ago

WATCHDOG UAF AND DIVISION-BY-ZERO FIXES LAND IN V7.2-RC5

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infra 40 shipped 1-min read

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infra 47 shipped 2-min read

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