CVE-2020-11725

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

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

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-704

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474Exploit, Third Party Advisory
https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/
https://twitter.com/yabbadabbadrew/status/1248632267028582400Third Party Advisory
https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474Exploit, Third Party Advisory
https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/
https://twitter.com/yabbadabbadrew/status/1248632267028582400Third Party Advisory

Timeline

Published: Apr 12, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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