CVE-2020-11725 — snd_ctl_elem_add in sound/core/control
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
Published
2020-04-12T22:15:11.900
Last modified
2026-05-29T21:16:37.990
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
01What is this vulnerability?
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…
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2020-04-12T22:15:11.900
- Last modified: 2026-05-29T21:16:37.990
09References
- github.com — https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/…
- lore.kernel.org — https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/
- twitter.com — https://twitter.com/yabbadabbadrew/status/1248632267028582400
- github.com — https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/…
- lore.kernel.org — https://lore.kernel.org/alsa-devel/s5h4ktmlfpx.wl-tiwai%40suse.de/
- twitter.com — https://twitter.com/yabbadabbadrew/status/1248632267028582400
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