Linux Kernel Daily: SMB Hardening and Security Mediation Fixes
Both the SMB server and client landed sweeping bounds-checking and lifetime fixes to block malicious peers, while AppArmor and fs-verity closed mediation and integrity bypasses. Perf tools, DRM, KVM, and power management added late-cycle fixes and platform updates.
Duration: PT2M13S
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: 2026-10-31T06:01:09Z
- Audio duration: PT2M13S
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 Saturday, October 31st, 2026.
The dominant pattern today is hardening against untrusted input, with matching fix sweeps on both sides of S M B, plus parallel tightening in AppArmor and file integrity.
On the server side, the merge tagged k s m b d for 7 point 4 part 2 closes buffer overflows in compound create responses and directory name conversion, an R D M A length underflow, and use after free on failed reconnect and session teardown, alongside session reference leaks and named pipe reply loss. On the client…
A second theme is access control correctness. The AppArmor pull fixes leaks on failed policy loads, a use after free in namespace lookup, integer overflow in table sizing, and mediation bypasses for unspecified sockets and S C T P connect and bind. Related, the fs-verity pull closes an integrity bypass when enabling…
Finally, tooling and hardware churn. The perf tools pull brings instruction tracking for data type profiling to ARM sixty-four, overhauls Python exporters and tracing filters, and syncs kernel headers, while D R M lands late display and power fixes mostly for A M D, K V M cleans up ARM register definitions and adds…
That's what to carry into…
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