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fix: upgrade linux-libc-dev to remediate CVE-2026-23411 (HIGH)#28

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idvoretskyi merged 1 commit intomainfrom
copilot/fix-apparmor-race-condition
Apr 27, 2026
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fix: upgrade linux-libc-dev to remediate CVE-2026-23411 (HIGH)#28
idvoretskyi merged 1 commit intomainfrom
copilot/fix-apparmor-race-condition

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Copilot AI commented Apr 27, 2026

linux-libc-dev6.8.0-85.85 contains a kernel AppArmor race condition where i_private data can be freed while filesystem callbacks still hold references to it, leading to use-after-free. Fixed in 6.8.0-106.106.

Changes

  • .devcontainer/Dockerfile: Adds an explicit apt-get upgrade linux-libc-dev step after the base package install to ensure the patched version is present in the devcontainer image, regardless of what the upstream mcr.microsoft.com/devcontainers/base:ubuntu-24.04 layer ships.
&& apt-get -y upgrade linux-libc-dev \

Intentionally avoids pinning to 6.8.0-106.106 so future Ubuntu security releases are picked up automatically on rebuild.

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Co-authored-by: idvoretskyi <118459+idvoretskyi@users.noreply.github.com>
@idvoretskyi idvoretskyi merged commit 7161f4c into main Apr 27, 2026
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@idvoretskyi idvoretskyi deleted the copilot/fix-apparmor-race-condition branch April 27, 2026 13:17
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2 participants