Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.18 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18-rc5 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1781739 Title: 18.04 Leaking wireless connection to other users Status in linux package in Ubuntu: Incomplete Bug description: In ubuntu 18.04, when setting up a new wireless connection: Select "Connect automatically" Untick "Make this connection available to other users" Select "Store the password only for this user" Once you are connected to the network, switch user once or twice. Eventually the other user will be connected to the network. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1781739/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp