-- Regards, Christian
From 344a329a5706de125b3ef11dc7324101b08b3c67 Mon Sep 17 00:00:00 2001 From: Christian Franke <christian.fra...@t-online.de> Date: Mon, 14 Jul 2025 14:44:01 +0200 Subject: [PATCH] Cygwin: doc: warn about unprivileged access to raw devices Raw devices of partitions may be accessible from unprivileged processes, for example if connected via USB. Signed-off-by: Christian Franke <christian.fra...@t-online.de> --- winsup/doc/specialnames.xml | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/winsup/doc/specialnames.xml b/winsup/doc/specialnames.xml index a1f9d3f5e..02375e737 100644 --- a/winsup/doc/specialnames.xml +++ b/winsup/doc/specialnames.xml @@ -368,7 +368,15 @@ handle the information. <emphasis role='bold'>Writing</emphasis> to a raw mass storage device you should only do if you <emphasis role='bold'>really</emphasis> know what you're doing and are aware of the fact that any mistake can destroy important information, for the -device, and for you. So, please, handle this ability with care. +device, and for you. So, please, handle this ability with care.</para> + +<para><emphasis role='bold'>Important:</emphasis> Windows may allow raw read +<emphasis role='bold'>and write</emphasis> access to partitions (for example +<filename>/dev/sda2</filename>) even from unprivileged processes. This is +usually the case for partitions on "removable" drives like USB flash drives +or regular SATA/NVMe drives behind USB docking stations. If +<command>chkdsk X:</command> works, raw access to the same partition is +possible from the same user account. <emphasis role='bold'>You have been warned.</emphasis></para></note> <para> -- 2.45.1
