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CVE-2016-9794

Description

Race condition in the snd_pcm_period_elapsed function in sound/core/pcm_lib.c in the ALSA subsystem in the Linux kernel before 4.7 allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a crafted SNDRV_PCM_TRIGGER_START command. #### Notes Author| Note ---|--- [jdstrand](<https://launchpad.net/~jdstrand>) | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support


Affected Package


OS OS Version Package Name Package Version
ubuntu 14.04 linux 3.13.0-107.154
ubuntu 16.04 linux 4.4.0-59.80
ubuntu upstream linux 4.7~rc1
ubuntu upstream linux-armadaxp 4.7~rc1
ubuntu 16.04 linux-aws 4.4.0-1003.12
ubuntu upstream linux-aws 4.7~rc1
ubuntu upstream linux-flo 4.7~rc1
ubuntu upstream linux-gke 4.7~rc1
ubuntu upstream linux-goldfish 4.7~rc1
ubuntu upstream linux-grouper 4.7~rc1
ubuntu upstream linux-hwe 4.7~rc1
ubuntu upstream linux-hwe-edge 4.7~rc1
ubuntu upstream linux-linaro-omap 4.7~rc1
ubuntu upstream linux-linaro-shared 4.7~rc1
ubuntu upstream linux-linaro-vexpress 4.7~rc1
ubuntu upstream linux-lts-quantal 4.7~rc1
ubuntu upstream linux-lts-raring 4.7~rc1
ubuntu upstream linux-lts-saucy 4.7~rc1
ubuntu upstream linux-lts-trusty 4.7~rc1
ubuntu upstream linux-lts-utopic 4.7~rc1
ubuntu 14.04 linux-lts-vivid 3.19.0-79.87~14.04.1
ubuntu upstream linux-lts-vivid 4.7~rc1
ubuntu upstream linux-lts-wily 4.7~rc1
ubuntu 14.04 linux-lts-xenial 4.4.0-59.80~14.04.1
ubuntu upstream linux-lts-xenial 4.7~rc1
ubuntu upstream linux-maguro 4.7~rc1
ubuntu upstream linux-mako 4.7~rc1
ubuntu upstream linux-manta 4.7~rc1
ubuntu upstream linux-qcm-msm 4.7~rc1
ubuntu 16.04 linux-raspi2 4.4.0-1040.47
ubuntu upstream linux-raspi2 4.7~rc1
ubuntu 16.04 linux-snapdragon 4.4.0-1044.48
ubuntu 16.10 linux-snapdragon 4.4.0-1046.50
ubuntu upstream linux-snapdragon 4.7~rc1
ubuntu upstream linux-ti-omap4 4.7~rc1

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