Description: ALSA: pcm: prevent UAF in snd_pcm_info
References:
Notes:
 bwh> Commit 362bca57f5d7 "ALSA: pcm: prevent UAF in snd_pcm_info" claims to
 bwh> fix this, but the UAF was already removed in 4.13 by commit e11f0f90a626
 bwh> "ALSA: pcm: remove SNDRV_PCM_IOCTL1_INFO internal command".  Based on
 bwh> the latter commit message it appears that the UAF is totally harmless
 bwh> in practice.
Bugs:
upstream: released (4.13-rc1) [e11f0f90a626f93899687b1cc909ee37dd6c5809]
4.9-upstream-stable: released (4.9.69) [45ddff3ce4e9a3d7e935d5b596686d9e176ed4a9]
3.16-upstream-stable: released (3.16.55) [da7bce9e41266e17c98a997c154cb126a7ed8e98]
3.2-upstream-stable: released (3.2.100) [c51f80d4d3a47dbc97b9b1b67d81e763afe9c398]
sid: released (4.13.4-1)
4.9-stretch-security: released (4.9.80-1)
3.16-jessie-security: released (3.16.56-1)
3.2-wheezy-security: released (3.2.101-1)