Bug 2516558 (CVE-2026-72415) - CVE-2026-72415 kernel: ASoC: SDCA: Validate written enum value in ge_put_enum_double()
Summary: CVE-2026-72415 kernel: ASoC: SDCA: Validate written enum value in ge_put_enum...
Keywords:
Status: NEW
Alias: CVE-2026-72415
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:18 UTC by OSIDB Bzimport
Modified: 2026-08-19 16:07 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-08-15 06:18:48 UTC
In the Linux kernel, the following vulnerability has been resolved:

ASoC: SDCA: Validate written enum value in ge_put_enum_double()

ge_put_enum_double() passes the user-supplied enumeration index
item[0] to snd_soc_enum_item_to_val() without checking it against the
number of items in the enum:

	ret = snd_soc_enum_item_to_val(e, item[0]);

snd_soc_enum_item_to_val() indexes the heap-allocated e->values[] array
with that index (e->values is set from a devm_kcalloc() of e->items
entries), so a control write with an out-of-range item[0] reads past the
end of the values buffer.  The bounds check in
snd_soc_dapm_put_enum_double() only runs afterwards, so it does not
prevent the read here.

Reject an out-of-range item before using it, matching the other enum put
handlers.

This issue was pointed out by the Sashiko AI review bot while reviewing a
related enum-validation series:
https://lore.kernel.org/all/20260609125735.CEB651F00893@smtp.kernel.org/


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