Vulnerability Description
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.
References
- https://git.kernel.org/stable/c/2d92c250815cba6bffd64f0125fac7afe4fa6ce0
- https://git.kernel.org/stable/c/324cc98b71f0d3dee7367ef3c669fd80747e71b6
- https://git.kernel.org/stable/c/3efb7f6491526f5012f9ec94769e9ed832feeef8
FAQ
What is CVE-2026-90197?
CVE-2026-90197 is a documented vulnerability. 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 u...
How severe is CVE-2026-90197?
CVSS scoring is not yet available for CVE-2026-90197. Check NVD for updates.
Is there a patch for CVE-2026-90197?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.