snd_ctl_elem_add in sound/core/control.c in the Linux kernel through 5.6.3 has a count=info->owner line which later affects a private_size*count multiplication for unspecified "interesting side effects." NOTE: kernel engineers dispute this finding because it could be relevant only if new callers were added that were unfamiliar with the misuse of the info->owner field to represent data unrelated to the "owner" concept. The existing callers SNDRV_CTL_IOCTL_ELEM_ADD and SNDRV_CTL_IOCTL_ELEM_REPLACE have been designed to misuse the info->owner field in a safe way

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kernel: prevent heap corruption in snd_ctl_new()

Multiple integer overflows in the sndctlnew function in sound/core/control.c in the Linux kernel before 2.6.36-rc5-next-20100929 allow local users to cause a denial of service heap memory corruption or possibly have unspecified other impact via a crafted 1 SNDRVCTLIOCTLELEMADD or 2...