kernel-packages team mailing list archive

[Steve Beattie <sbeattie@xxxxxxxxxx>]

CVE-2016-2549

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: linux-ti-omap4 (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: linux-raspi2 (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Wily)
   Importance: Undecided
       Status: New

** Also affects: linux-ti-omap4 (Ubuntu Wily)
   Importance: Undecided
       Status: New

** Also affects: linux-raspi2 (Ubuntu Wily)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Vivid)
   Importance: Undecided
       Status: New

** Also affects: linux-ti-omap4 (Ubuntu Vivid)
   Importance: Undecided
       Status: New

** Also affects: linux-raspi2 (Ubuntu Vivid)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-ti-omap4 (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux-raspi2 (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: linux (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-ti-omap4 (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Also affects: linux-raspi2 (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Changed in: linux-lts-trusty (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-trusty (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-lts-trusty (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-lts-wily (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-wily (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-wily (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-ti-omap4 (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-ti-omap4 (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-ti-omap4 (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-armadaxp (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-lts-xenial (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-xenial (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-xenial (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-manta (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-vivid (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-vivid (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-vivid (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-raspi2 (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-raspi2 (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-mako (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-utopic (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-utopic (Ubuntu Wily)
       Status: New => Invalid

** Changed in: linux-lts-utopic (Ubuntu Xenial)
       Status: New => Invalid

** Changed in: linux-goldfish (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-flo (Ubuntu Precise)
       Status: New => Invalid

** Description changed:

- Placeholder
+ hrtimer_cancel() waits for the completion from the callback, thus it
+ must not be called inside the callback itself. This was already a
+ problem in the past with ALSA hrtimer driver, and the early commit
+ [fcfdebe70759: ALSA: hrtimer - Fix lock-up] tried to address it.
+ However, the previous fix is still insufficient: it may still cause a
+ lockup when the ALSA timer instance reprograms itself in its callback.
+ Then it invokes the start function even in snd_timer_interrupt() that is
+ called in hrtimer callback itself, results in a CPU stall. This is no
+ hypothetical problem but actually triggered by syzkaller fuzzer.
+ 
+ Break-Fix: - 2ba1fe7a06d3624f9a7586d672b55f08f7c670f3

** Changed in: linux-lts-trusty (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-trusty (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-trusty (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-trusty (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-wily (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-wily (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-wily (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-wily (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-quantal (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-quantal (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-quantal (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-quantal (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-quantal (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-ti-omap4 (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-ti-omap4 (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-ti-omap4 (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-ti-omap4 (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-raring (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-raring (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-raring (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-raring (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-raring (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-armadaxp (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-armadaxp (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-armadaxp (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-armadaxp (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-xenial (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-xenial (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-xenial (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-xenial (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-saucy (Ubuntu Precise)
       Status: New => Invalid

** Changed in: linux-lts-saucy (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-saucy (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-saucy (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-saucy (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-manta (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-manta (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-manta (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-manta (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-manta (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-vivid (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-vivid (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-vivid (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-vivid (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-raspi2 (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-raspi2 (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-raspi2 (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-raspi2 (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-mako (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-mako (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-mako (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-mako (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-mako (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-lts-utopic (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-lts-utopic (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-lts-utopic (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-lts-utopic (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-goldfish (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-goldfish (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-goldfish (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-goldfish (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-goldfish (Ubuntu Trusty)
   Importance: Undecided => Medium

** Changed in: linux-flo (Ubuntu Precise)
   Importance: Undecided => Medium

** Changed in: linux-flo (Ubuntu Wily)
   Importance: Undecided => Medium

** Changed in: linux-flo (Ubuntu Xenial)
   Importance: Undecided => Medium

** Changed in: linux-flo (Ubuntu Trusty)
       Status: New => Invalid

** Changed in: linux-flo (Ubuntu Trusty)
   Importance: Undecided => Medium

-- 
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/1549200

Title:
  CVE-2016-2549

Status in linux package in Ubuntu:
  New
Status in linux-armadaxp package in Ubuntu:
  Invalid
Status in linux-flo package in Ubuntu:
  New
Status in linux-goldfish package in Ubuntu:
  New
Status in linux-lts-quantal package in Ubuntu:
  Invalid
Status in linux-lts-raring package in Ubuntu:
  Invalid
Status in linux-lts-saucy package in Ubuntu:
  Invalid
Status in linux-lts-trusty package in Ubuntu:
  Invalid
Status in linux-lts-utopic package in Ubuntu:
  Invalid
Status in linux-lts-vivid package in Ubuntu:
  Invalid
Status in linux-lts-wily package in Ubuntu:
  Invalid
Status in linux-lts-xenial package in Ubuntu:
  Invalid
Status in linux-mako package in Ubuntu:
  New
Status in linux-manta package in Ubuntu:
  New
Status in linux-raspi2 package in Ubuntu:
  New
Status in linux-ti-omap4 package in Ubuntu:
  Invalid
Status in linux source package in Precise:
  New
Status in linux-armadaxp source package in Precise:
  New
Status in linux-flo source package in Precise:
  Invalid
Status in linux-goldfish source package in Precise:
  Invalid
Status in linux-lts-quantal source package in Precise:
  Invalid
Status in linux-lts-raring source package in Precise:
  Invalid
Status in linux-lts-saucy source package in Precise:
  Invalid
Status in linux-lts-trusty source package in Precise:
  New
Status in linux-lts-utopic source package in Precise:
  Invalid
Status in linux-lts-vivid source package in Precise:
  Invalid
Status in linux-lts-wily source package in Precise:
  Invalid
Status in linux-lts-xenial source package in Precise:
  Invalid
Status in linux-mako source package in Precise:
  Invalid
Status in linux-manta source package in Precise:
  Invalid
Status in linux-raspi2 source package in Precise:
  Invalid
Status in linux-ti-omap4 source package in Precise:
  New
Status in linux source package in Trusty:
  New
Status in linux-armadaxp source package in Trusty:
  Invalid
Status in linux-flo source package in Trusty:
  Invalid
Status in linux-goldfish source package in Trusty:
  Invalid
Status in linux-lts-quantal source package in Trusty:
  Invalid
Status in linux-lts-raring source package in Trusty:
  Invalid
Status in linux-lts-saucy source package in Trusty:
  Invalid
Status in linux-lts-trusty source package in Trusty:
  Invalid
Status in linux-lts-utopic source package in Trusty:
  New
Status in linux-lts-vivid source package in Trusty:
  New
Status in linux-lts-wily source package in Trusty:
  New
Status in linux-lts-xenial source package in Trusty:
  New
Status in linux-mako source package in Trusty:
  Invalid
Status in linux-manta source package in Trusty:
  Invalid
Status in linux-raspi2 source package in Trusty:
  Invalid
Status in linux-ti-omap4 source package in Trusty:
  Invalid
Status in linux source package in Vivid:
  New
Status in linux-armadaxp source package in Vivid:
  New
Status in linux-flo source package in Vivid:
  New
Status in linux-goldfish source package in Vivid:
  New
Status in linux-lts-quantal source package in Vivid:
  New
Status in linux-lts-raring source package in Vivid:
  New
Status in linux-lts-saucy source package in Vivid:
  New
Status in linux-lts-trusty source package in Vivid:
  New
Status in linux-lts-utopic source package in Vivid:
  New
Status in linux-lts-vivid source package in Vivid:
  New
Status in linux-lts-wily source package in Vivid:
  New
Status in linux-lts-xenial source package in Vivid:
  New
Status in linux-mako source package in Vivid:
  New
Status in linux-manta source package in Vivid:
  New
Status in linux-raspi2 source package in Vivid:
  New
Status in linux-ti-omap4 source package in Vivid:
  New
Status in linux source package in Wily:
  New
Status in linux-armadaxp source package in Wily:
  Invalid
Status in linux-flo source package in Wily:
  New
Status in linux-goldfish source package in Wily:
  New
Status in linux-lts-quantal source package in Wily:
  Invalid
Status in linux-lts-raring source package in Wily:
  Invalid
Status in linux-lts-saucy source package in Wily:
  Invalid
Status in linux-lts-trusty source package in Wily:
  Invalid
Status in linux-lts-utopic source package in Wily:
  Invalid
Status in linux-lts-vivid source package in Wily:
  Invalid
Status in linux-lts-wily source package in Wily:
  Invalid
Status in linux-lts-xenial source package in Wily:
  Invalid
Status in linux-mako source package in Wily:
  New
Status in linux-manta source package in Wily:
  New
Status in linux-raspi2 source package in Wily:
  New
Status in linux-ti-omap4 source package in Wily:
  Invalid
Status in linux source package in Xenial:
  New
Status in linux-armadaxp source package in Xenial:
  Invalid
Status in linux-flo source package in Xenial:
  New
Status in linux-goldfish source package in Xenial:
  New
Status in linux-lts-quantal source package in Xenial:
  Invalid
Status in linux-lts-raring source package in Xenial:
  Invalid
Status in linux-lts-saucy source package in Xenial:
  Invalid
Status in linux-lts-trusty source package in Xenial:
  Invalid
Status in linux-lts-utopic source package in Xenial:
  Invalid
Status in linux-lts-vivid source package in Xenial:
  Invalid
Status in linux-lts-wily source package in Xenial:
  Invalid
Status in linux-lts-xenial source package in Xenial:
  Invalid
Status in linux-mako source package in Xenial:
  New
Status in linux-manta source package in Xenial:
  New
Status in linux-raspi2 source package in Xenial:
  New
Status in linux-ti-omap4 source package in Xenial:
  Invalid

Bug description:
  hrtimer_cancel() waits for the completion from the callback, thus it
  must not be called inside the callback itself. This was already a
  problem in the past with ALSA hrtimer driver, and the early commit
  [fcfdebe70759: ALSA: hrtimer - Fix lock-up] tried to address it.
  However, the previous fix is still insufficient: it may still cause a
  lockup when the ALSA timer instance reprograms itself in its callback.
  Then it invokes the start function even in snd_timer_interrupt() that
  is called in hrtimer callback itself, results in a CPU stall. This is
  no hypothetical problem but actually triggered by syzkaller fuzzer.

  Break-Fix: - 2ba1fe7a06d3624f9a7586d672b55f08f7c670f3

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