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

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

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

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

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

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

** Changed in: linux-snapdragon (Ubuntu Yakkety)
       Status: New => Invalid

** Changed in: linux-snapdragon (Ubuntu Yakkety)
   Importance: Undecided => Medium

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

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

** Description changed:

- snd_seq_ioctl_remove_events() calls snd_seq_fifo_clear() unconditionally
- even if there is no FIFO assigned, and this leads to an Oops due to NULL
- dereference.
+ The snd_seq_ioctl_remove_events function in
+ sound/core/seq/seq_clientmgr.c in the Linux kernel before 4.4.1 does not
+ verify FIFO assignment before proceeding with FIFO clearing, which
+ allows local users to cause a denial of service (NULL pointer
+ dereference and OOPS) via a crafted ioctl call.
  
  Break-Fix: - 030e2c78d3a91dd0d27fef37e91950dde333eba1

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https://bugs.launchpad.net/bugs/1549181

Title:
  CVE-2016-2543

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