linux-kernel - [bugzilla-daemon@...zilla.kernel.org: [Bug 198181] New: BUG at drivers/pci/msi.c:352 when unplugging a sysfs authorized thunderbolt 3 dock]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [day] [month] [year] [list]

Date:   Sun, 17 Dec 2017 20:23:57 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Andreas Noever <andreas.noever@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Yehezkel Bernat <yehezkel.bernat@...el.com>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [bugzilla-daemon@...zilla.kernel.org: [Bug 198181] New: BUG at
 drivers/pci/msi.c:352 when unplugging a sysfs authorized thunderbolt 3 dock]

----- Forwarded message from bugzilla-daemon@...zilla.kernel.org -----

Date: Sun, 17 Dec 2017 15:04:51 +0000
From: bugzilla-daemon@...zilla.kernel.org
To: bugzilla.pci@...il.com
Subject: [Bug 198181] New: BUG at drivers/pci/msi.c:352 when unplugging a sysfs
	authorized thunderbolt 3 dock

https://bugzilla.kernel.org/show_bug.cgi?id=198181

            Bug ID: 198181
           Summary: BUG at drivers/pci/msi.c:352 when unplugging a sysfs
                    authorized thunderbolt 3 dock
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.14.4
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: PCI
          Assignee: drivers_pci@...nel-bugs.osdl.org
          Reporter: nheart@...il.com
                CC: bhelgaas@...gle.com
        Regression: No

Created attachment 261219
  --> https://bugzilla.kernel.org/attachment.cgi?id=261219&action=edit
dmesg output

Hey,

I have a CalDigit TS3 Lite Thunderbolt 3 Dock that I use with a Dell Alienware
13.

When plugged in, the dock works fine, except no USB devices are recognized.
After some googling I found that I need to authorize it access to the dock via
sysfs https://lkml.org/lkml/2017/5/18/848

After I run echo 1 > /sys/bus/thunderbolt/devices/0-1/authorized

I can take full use of the dock, however if I unplug it, I face a kernel bug
at:

drivers/pci/msi.c:352 (dmesg attached). 

This is the free_msi_irqs function, but I don't understand the code. Any
explanation/help suggestions?

Cheers,

Nick

-- 
You are receiving this mail because:
You are watching the assignee of the bug.

----- End forwarded message -----