Extension Signature Verification Failed: C/C++ Exten... | microsoft/vscode-cpptools

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Type: Bug

Please include following log F1 > Open View... > Shared below.

2026-09-19 02:34:39.928 [error] [Shared] Error while installing the extension ms-vscode.cpptools Signature verification failed with 'UnknownError' error. vscode-userdata:/home/hanjin/.vscode/extensions/extensions.json
2026-09-19 02:34:39.930 [error] [Shared] [uncaught exception in sharedProcess]: Signature verification failed with 'UnknownError' error.: SignatureVerificationInternal: Signature verification failed with 'UnknownError' error.
at Ba.downloadExtension (file:///usr/share/code/resources/app/out/vs/code/electron-utility/sharedProcess/sharedProcessMain.js:482:80412)
at async Ba.downloadAndExtractGalleryExtension (file:///usr/share/code/resources/app/out/vs/code/electron-utility/sharedProcess/sharedProcessMain.js:482:78693)
2026-09-19 02:34:39.935 [info] [Shared] Rollback: Uninstalled extension ms-vscode.cpptools-extension-pack
2026-09-19 02:34:39.935 [info] [Shared] Extension installed successfully: ms-vscode.cmake-tools vscode-userdata:/home/hanjin/.vscode/extensions/extensions.json
2026-09-19 02:34:39.935 [info] [Shared] Extension installed successfully: ms-vscode.cpp-devtools vscode-userdata:/home/hanjin/.vscode/extensions/extensions.json
2026-09-19 02:34:39.935 [info] [Shared] Extension installed successfully: ms-vscode.cpptools-themes vscode-userdata:/home/hanjin/.vscode/extensions/extensions.json
2026-09-19 02:34:39.940 [info] [Shared] Marked extension as removed ms-vscode.cpptools-extension-pack-1.5.1

Extension version: 2.0.0
VS Code version: Code 1.138.0 (7debcd0e2acdea1c52de81bf9ee1620444407dda, 2026-09-15T07:24:32Z)
OS version: Linux x64 7.2.0-61.fc45.x86_64
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i3-1005G1 CPU @ 1.20GHz (4 x 3301)
GPU Status	2d_canvas: enabled GPU0: VENDOR= 0x8086 [Google Inc. (Intel)], DEVICE=0x8a56 [ANGLE (Intel, Mesa Intel(R) UHD Graphics (ICL GT1), OpenGL ES 3.2 Mesa 26.2.2)], DRIVER_VENDOR=Mesa, DRIVER_VERSION=26.2.2 ACTIVE Machine model name: Machine model version: direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgpu: enabled webgpu_on_vk_via_gl_interop: disabled_off webnn: disabled_off
Load (avg)	1, 1, 1
Memory (System)	19.31GB (15.81GB free)
Process Argv	--crash-reporter-id e3c6b030-16b9-4314-9afc-4686df2c9467
Screen Reader	no
VM	0%
DESKTOP_SESSION	gnome
XDG_CURRENT_DESKTOP	GNOME
XDG_SESSION_DESKTOP	gnome
XDG_SESSION_TYPE	wayland

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Inizia riproducendo l'installazione di ms-vscode.cpptools-extension-pack su Linux con VS Code 1.138.0, quindi esamina il percorso di verifica della firma del processo condiviso rappresentato da sharedProcessMain.js e gli identificatori delle estensioni segnalati. Il lavoro è completato quando la causa di UnknownError è stata identificata e l'installazione riesce oppure esiste un caso di errore documentato e verificabile.

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Extension Signature Verification Failed: C/C++ Extension Pack

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