Bug#917206: linux-image-4.9.0-8-amd64: NULL ptr dereference in xhci_hub_control [xhci_hcd] with USB Mass Storage (Kingston)

From	Cyril Brulebois <kibi@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#917206: linux-image-4.9.0-8-amd64: NULL ptr dereference in xhci_hub_control [xhci_hcd] with USB Mass Storage (Kingston)
Date	2019-01-03 05:20 +0100
Message-ID	<xc2E9-7qs-3@gated-at.bofh.it> (permalink)
References	<xbN2p-659-1@gated-at.bofh.it> <x8nea-32L-1@gated-at.bofh.it> <xbN2p-659-1@gated-at.bofh.it>
Organization	Debian

Cross-posted to 2 groups.

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Hi Christoph,

Christoph Pfister <christophpfister@gmail.com> (2019-01-02):
> tl;dr: This is a regression introduced in Debian 9.6
> (linux/4.9.130-2); it is caused by [1] and fixed by [2]. Please fix :)
> 
> I'm taking the liberty to hijack this bug because I'm experiencing the
> same issue [3] when powering off a usb3 hdd. The oops is easy to
> reproduce; I've tested the following versions of
> linux-image-4.9.0-8-amd64:
> 
> - 4.9.110-3+deb9u6: works
> - 4.9.130-2 (current stretch): affected
> - 4.9.135-1 (stretch-proposed-updates): affected
> - 4.9.130-2 + manually applying [2]: works

No worries (from my point of view) with hijacking the bug report, esp.
with all the nice pointers! Thanks for tracking that down. :)


Cheers,
-- 
Cyril Brulebois (kibi@debian.org)            <https://debamax.com/>
D-I release manager -- Release team member -- Freelance Consultant

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Bug#917206: linux-image-4.9.0-8-amd64: NULL ptr dereference in xhci_hub_control [xhci_hcd] with USB Mass Storage (Kingston) Christoph Pfister <christophpfister@gmail.com> - 2019-01-02 12:40 +0100
  Processed: Re: linux-image-4.9.0-8-amd64: NULL ptr dereference in  xhci_hub_control [xhci_hcd] with USB Mass Storage (Kingston) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-01-02 12:40 +0100
  Bug#917206: linux-image-4.9.0-8-amd64: NULL ptr dereference in xhci_hub_control [xhci_hcd] with USB Mass Storage (Kingston) Salvatore Bonaccorso <carnil@debian.org> - 2019-01-02 17:30 +0100
  Bug#917206: linux-image-4.9.0-8-amd64: NULL ptr dereference in xhci_hub_control [xhci_hcd] with USB Mass Storage (Kingston) Cyril Brulebois <kibi@debian.org> - 2019-01-03 05:20 +0100

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