Linux Kernel Daily: Merge Window Cleanup and a Memory Accounting Bug Fix
Linus pulled a wave of subsystem fixes for the 7.3 cycle covering memory management, s390, networking, NTFS, device mapper, and SELinux, with the standout fix closing a way for processes to bypass memory lock limits via secretmem. Most other changes are targeted hotfixes catching bugs from the recent merge window, not new features.
Duration: PT2M38S
Episode overview
This episode is a short developer briefing from Linux Kernel Daily.
It explains recent repository work in plain language.
- Show: Linux Kernel Daily
- Published: 2026-09-04T06:01:16Z
- Audio duration: PT2M38S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning. It's September 4th, 2026, and this is Linux Kernel Daily.
Today's activity is almost entirely merge traffic — Linus pulling in stabilization fixes ahead of 7.3, across memory management, s390, networking, NTFS, device mapper, and SELinux. The throughline: this is bug-fix season, not feature season.
The most consequential single fix is in secretmem, from Lorenzo Stoakes, commit 97be98b... actually landing as 97d34aa. Secretmem memory was being tracked like mlock'd memory, but the accounting didn't hold up — a process could map and unmap secret memory repeatedly, or fork, and quietly escape the RLIMIT_MEMLOCK…
Beyond that, a clear pattern across today's pulls is "recent regressions caught fast." The networking pull, tag net-7.3-rc2, fixes a TCP GSO nesting bug in GRO — commit 66817a9 — where hardware-accelerated GRO packets combined with fraglist GRO could build skb structures that couldn't be segmented back correctly,…
The s390 and mm hotfix pulls round things out with narrower singleton fixes — NULL pointer dereferences in boot and IPL code, a hugetlb migration flag bug, and a KCSAN-flagged data race in time-keeping.
What to remember: several of this cycle's…
Nearby episodes from Linux Kernel Daily
- Randstruct Settles Down for Rust Builds
- SMB Stack Gets a Security Overhaul
- Race Condition Cleanup Across Cgroups, Workqueues, and EDAC
- Weekly Recap - Late Fixes Sweep Ahead of the 7.3 Merge Window Close
- The Great Merge-Window Cleanup
- SCSI Layer Hardens Against Unsafe Locking
- Merge Window Hardening Wave
- Packet Scheduler Denial-of-Service Fixes