CVE-2026-90197

EUVD-2026-81790
In the Linux kernel, the following vulnerability has been resolved:

HID: haptic: don't write an uninitialized value to unhandled usages

fill_effect_buf() initializes value only for the four haptic usages
handled by its switch, but writes it to field->value[] for every usage.
An unhandled usage can therefore receive either an uninitialized value
or one left over from the previous usage. hid_output_report() then
serializes that value into the effect's report buffer.

Skip unhandled usages instead. This also matches switch_mode(), which
only updates fields it recognizes.

Found with Clang's -Wconditional-uninitialized.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
---
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
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Debian Releases
Debian Product
Codename
linux
bookworm
6.1.176-1
fixed
bookworm (security)
6.1.187-1
fixed
forky
vulnerable
sid
7.2.6-1
fixed
trixie
6.12.107-1
fixed
trixie (security)
6.12.107-1
fixed