Linux: Update kernel to 6.12.13

[sairon]

• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13

Summary by CodeRabbit

• Documentation

  • Updated kernel version information in user-facing documentation to reflect the new release.

• Chores

  • Upgraded system build configurations for various supported platforms to kernel version 6.12.13.

[coderabbitai]

📝 Walkthrough

Walkthrough

The changes update the Linux kernel version from 6.12.12 to 6.12.13. In the documentation file, the kernel version is incremented for multiple board entries. In addition, several Buildroot configuration files under the configs directory have been modified to update the custom kernel version value accordingly. No other modifications or alterations to functionality were made.

Changes

Files	Change Summary
Documentation/kernel.md	Kernel version updated from 6.12.12 to 6.12.13 for multiple board entries (e.g., Open Virtual Appliance, Home Assistant Green, Tinker Board, etc.).
buildroot-external/configs/*_defconfig	Updated BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE from "6.12.12" to "6.12.13" in various defconfig files (generic_aarch64, generic_x86_64, green, khadas_vim3, odroid_c2, odroid_c4, odroid_m1, odroid_m1s, odroid_n2, odroid_xu4, ova, and tinker).

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 970cd4d and 260b544.

📒 Files selected for processing (13)

• Documentation/kernel.md (1 hunks)
• buildroot-external/configs/generic_aarch64_defconfig (1 hunks)
• buildroot-external/configs/generic_x86_64_defconfig (1 hunks)
• buildroot-external/configs/green_defconfig (1 hunks)
• buildroot-external/configs/khadas_vim3_defconfig (1 hunks)
• buildroot-external/configs/odroid_c2_defconfig (1 hunks)
• buildroot-external/configs/odroid_c4_defconfig (1 hunks)
• buildroot-external/configs/odroid_m1_defconfig (1 hunks)
• buildroot-external/configs/odroid_m1s_defconfig (1 hunks)
• buildroot-external/configs/odroid_n2_defconfig (1 hunks)
• buildroot-external/configs/odroid_xu4_defconfig (1 hunks)
• buildroot-external/configs/ova_defconfig (1 hunks)
• buildroot-external/configs/tinker_defconfig (1 hunks)

✅ Files skipped from review due to trivial changes (10)

• buildroot-external/configs/odroid_m1_defconfig
• buildroot-external/configs/generic_aarch64_defconfig
• buildroot-external/configs/ova_defconfig
• buildroot-external/configs/generic_x86_64_defconfig
• buildroot-external/configs/odroid_c2_defconfig
• buildroot-external/configs/odroid_c4_defconfig
• buildroot-external/configs/odroid_xu4_defconfig
• buildroot-external/configs/khadas_vim3_defconfig
• buildroot-external/configs/tinker_defconfig
• Documentation/kernel.md

🔇 Additional comments (3)

buildroot-external/configs/odroid_n2_defconfig (1)

19-19: Verify the Linux kernel version update.

The kernel version update from 6.12.12 to 6.12.13 aligns with the PR objectives.

Let's verify this version:

✅ Verification successful

🌐 Web query:

What is the latest stable version of Linux kernel 6.12.x series? Are there any known security issues with version 6.12.13?

💡 Result:

The latest stable version in the Linux kernel 6. series is **Linux ** itself[1][7][10]. This LTS release was officially designated on December , with initial support projected until December [1][7]. While minor updates (e.g. .) are periodically released to address bugs and security patches[3][5], . specifically refers to Unraid OS's update (not the mainline Linux kernel), which uses Linux kernel ..[3].

Security Considerations

For **Linux **:

• No major CVEs are directly listed for . in provided sources[1][2][4][7].
• General vulnerabilities tracked on CVE Details show historical issues but none specific to this exact minor version[][].

For Unraid ..:

• Includes a security fix for curl[3].
• Addresses regression causing HDD spin-down issues[3].

Key Notes

• Some distributions (e.g. Fedora) experienced kernel lockdown being disabled by default in . variants[5], requiring manual configuration via grubby[5].
• Mainline **Linux ** receives ongoing LTS maintenance until at least December , with potential extensions based on community support[1][10].

Citations:

• 1: https://www.phoronix.com/news/Linux-6.12-LTS-Kernel-Official
• 2: https://linuxsecurity.com/news/security-projects/linux-kernel-6-13-essential-enterprise-security-upgrade
• 3: https://unraid.net/blog/6-12-13
• 4: https://9to5linux.com/linux-kernel-6-12-officially-released-this-is-whats-new
• 5: https://discussion.fedoraproject.org/t/lockdown-kernel-linux/140206
• 6: https://www.cvedetails.com/version/1836821/Linux-Linux-Kernel-6.12.html
• 7: https://www.theregister.com/2024/12/11/linux_612_lts/
• 8: https://9to5linux.com/tails-6-12-anonymous-os-fixes-security-issues-in-tor-circuits-persistent-storage
• 9: https://ostechnix.com/linux-kernel-6-12-released/
• 10: https://linux.slashdot.org/story/24/12/09/0125219/linux-kernel-612-confirmed-as-lts-will-be-supported-for-multiple-years

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Linux kernel version update is acceptable.

The update from "6.12.12" to "6.12.13" aligns with the latest stable release in the 6.12.x branch, and current sources do not indicate any major security issues with version 6.12.13.

• The new version follows minor release patterns addressing bug fixes and security patches.
• No critical vulnerabilities specific to 6.12.13 are reported in the consulted sources.

buildroot-external/configs/odroid_m1s_defconfig (1)

19-19: LGTM! Consistent kernel version update.

The kernel version update maintains consistency with other board configurations.

buildroot-external/configs/green_defconfig (1)

19-19: LGTM! Consistent kernel version update.

The kernel version update maintains consistency with other board configurations.

---

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