CVE-2026-90197

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

CVE-2026-90197 is fixed in linux on 1 platform by DEBIAN-CVE-2026-90197 (version 7.2.6-1), released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0021
10th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 14 7.2.6-1 DEBIAN-CVE-2026-90197 Sep 23, 2026

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