{"id":"CVE-2026-90197","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: haptic: don't write an uninitialized value to unhandled usages\n\nfill_effect_buf() initializes value only for the four haptic usages\nhandled by its switch, but writ…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: haptic: don't write an uninitialized value to unhandled usages\n\nfill_effect_buf() initializes value only for the four haptic usages\nhandled by its switch, but writ…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 344ff358495706abc7aac1e0c59a5bb16b350307 < 324cc98b71f0d3dee7367ef3c669fd80747e71b6","Linux >= 344ff358495706abc7aac1e0c59a5bb16b350307 < 2d92c250815cba6bffd64f0125fac7afe4fa6ce0","Linux >= 344ff358495706abc7aac1e0c59a5bb16b350307 < 3efb7f6491526f5012f9ec94769e9ed832feeef8","Linux 6.18"],"published":"2026-09-17","updated":"2026-09-17","sourceUpdated":"2026-09-17T17:17:14.530","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90197","references":[{"url":"https://git.kernel.org/stable/c/2d92c250815cba6bffd64f0125fac7afe4fa6ce0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/324cc98b71f0d3dee7367ef3c669fd80747e71b6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3efb7f6491526f5012f9ec94769e9ed832feeef8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-17T16:21:47.863Z","epss":0.00198,"epssPercentile":0.09823,"slug":"CVE-2026-90197","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nHID: haptic: don't write an uninitialized value to unhandled usages\n\nfill_effect_buf() initializes value only for the four haptic usages\nhandled by its switch, but writes it to field->value[] for every usage.\nAn unhandled usage can therefore receive either an uninitialized value\nor one left over from the previous usage. hid_output_report() then\nserializes that value into the effect's report buffer.\n\nSkip unhandled usages instead. This also matches switch_mode(), which\nonly updates fields it recognizes.\n\nFound with Clang's -Wconditional-uninitialized.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}