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LTP CVE Tests: How to Prove a Kernel Fix Reached Your Board
Your BSP reports a kernel version that should contain a given CVE fix. That is a claim about the tag it was…
RB Oct 5 · 14 min
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Linux Stable Kernel Updates: How to Tell Whether a CVE Fix Exists for Your Series
A stable kernel update lists which series a CVE was fixed in. Read the introduced version too, or an unfixed defect reads…
RB Sep 30 · 15 min
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Reboot Modes: A Wrong String Is a Silent Normal Reboot
A reboot mode string the kernel does not recognise gives no error and no log line. The board reboots normally. How to…
RB Sep 22 · 15 min
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9,057 Patches Landed in One Stable Monday. Plan for Volume, Not Review.
Seven longterm kernels released on 14 September 2026 carried 9,057 patches between them. Stable kernel patch volume has outgrown patch review.
RB Sep 17 · 6 min
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Your Product Has Five Support Clocks. Most Plans Track One.
An embedded Linux support lifecycle has five clocks, not one date. Build the register: kernel, layer, build system, silicon and your own…
RB Sep 9 · 16 min
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What the Yocto LTS Covers, and What It Does Not
The Yocto LTS covers linux-yocto and OE-Core for four years, but not vendor layers. Here is the line, and how to tell…
RB Sep 4 · 14 min
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Kernel CVEs Per Release Have Tripled. The Bugs Have Not.
Kernel CVEs per release have tripled since Linux 7.0, but the chart counts fixes, not new bugs. The release that created the…
RB Aug 31 · 11 min
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Inherited a Vendor BSP? Measure These Five Things First
Inherited a vendor BSP? Use five measurements to map runtime config, mainline delta, external modules, booted device tree and Yocto layers first.
RB Aug 28 · 12 min
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Kernel Cleanup Helpers: What Your LTS Actually Has
Kernel cleanup helpers are in every LTS, but the subsystem helpers and conditional guards arrived at point releases. Check your tree, not…
RB Aug 24 · 13 min
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Device Tree Ownership Is Moving Up Into Firmware
Under Arm SystemReady and EBBR, a firmware-provided device tree moves board ownership to the platform and makes firmware update a requirement, not…
RB Aug 20 · 11 min
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Your 32-bit Product Will Fail in 2038. Your Build Will Not Stop It.
A 32-bit time_t stops working in 2038. OE-core fixes it by default only since Yocto 4.3, and the QA check that would…
RB Aug 13 · 13 min
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SoC Kernel Support: How to Tell If Yours Has Already Lapsed
SoC kernel support runs on three clocks: upstream LTS EOL, vendor branch head, silicon longevity. Check all three before choosing an SoC…
RB Aug 10 · 21 min
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The Kernel Maintainer Bottleneck and What It Means for Upstreaming
The kernel maintainer bottleneck is slowing patch review even as contributions hit record highs. What it means for embedded teams upstreaming code.
RB Aug 6 · 8 min
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Safety-Critical Linux: What Certifying It Actually Takes
Safety-critical Linux is moving into cars, robots, and medical devices. How Linux gets certified to ISO 26262, and the skills the shift…
RB Jul 30 · 7 min
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Upstream-First BSP: Why Vendors Are Moving to Mainline
Qualcomm and Android are moving to an upstream-first BSP that tracks the mainline kernel. Here is what the shift means for embedded…
RB Jul 23 · 9 min
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