{ "document":{ "aggregate_severity":{ "namespace":"https://nvd.nist.gov/vuln-metrics/cvss", "text":"HIGH" }, "category":"csaf_vex", "csaf_version":"2.0", "distribution":{ "tlp":{ "label":"WHITE", "url":"https:/www.first.org/tlp/" } }, "lang":"en", "notes":[ { "text":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: quiesce input in hid_hw_stop() to prevent use-after-free\n\nA driver's probe calls hid_device_io_start() to enable input delivery,\nthen fails at a later initialization step and unwinds via hid_hw_stop().\nThe unwind frees struct hidraw via hidraw_disconnect() while in-flight\nHID reports may still be running on another CPU, dereferencing the\nfreed object through hidraw_report_event(). syzbot reports the\nresulting use-after-free for the corsair-psu HID driver.\n\nEdward Adam Davis posted a per-driver fix for corsair-psu that adds\nan explicit hid_device_io_stop() before hid_hw_stop() in the probe\nerror path (\"hwmon: prevent packets from going to driver for probe\",\n2026-04-28). Auditing the tree shows 15 drivers call\nhid_device_io_start(); 7 also call hid_device_io_stop() and 8 do not:\n\n drivers calling hid_device_io_start() without a matching\n hid_device_io_stop() before hid_hw_stop():\n drivers/hwmon/corsair-psu.c (fix posted by Edward)\n drivers/hwmon/corsair-cpro.c\n drivers/hwmon/nzxt-kraken3.c\n drivers/hwmon/nzxt-smart2.c\n drivers/hwmon/gigabyte_waterforce.c\n drivers/hid/hid-logitech-dj.c\n drivers/hid/hid-nintendo.c\n drivers/hid/hid-mcp2221.c\n\nRoughly half of all callers of the API are exposed. Centralize the\nquiesce in hid_hw_stop() so callers do not have to remember the\nmatching stop: if a driver has left hdev->io_started true on entry,\ncall hid_device_io_stop() before hid_disconnect().\n\nFor the 7 drivers that already call hid_device_io_stop() correctly,\nhdev->io_started is false on entry, the guard short-circuits, and\nbehavior is unchanged.\n\nNo Fixes: tag because the affected drivers gained their\nhid_device_io_start() calls independently over years; the bug is a\nclass-wide API misuse rather than a regression from one commit.", "category":"general", "title":"Synopsis" } ], "publisher":null, "references":[ { "summary":"nvd cve", "category":"external", "url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93189" }, { "summary":"CVE-2026-93189 vex file", "category":"self", "url":"https://repo.openeuler.org/security/data/csaf/cve/2026/csaf-openeuler-cve-2026-93189.json" }, { "summary":"openEuler-SA-2026-4185", "category":"self", "url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4185" }, { "summary":"CVE-2026-93189", "category":"self", "url":"https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2026-93189&packageName=kernel" } ], "title":"openEuler cve CVE-2026-93189", "tracking":{ "initial_release_date":"2026-10-08T09:42:26+08:00", "revision_history":[ { "date":"2026-10-08T09:42:26+08:00", "summary":"Initial", "number":"1.0.0" } ], "generator":{ "date":"2026-10-08T09:42:26+08:00", "engine":{ "name":"openEuler CSAF Tool V1.0" } }, "current_release_date":"2026-10-08T09:42:26+08:00", "id":"CVE-2026-93189", "version":"1.0.0", "status":"interim" } }, "product_tree":{ "branches":[ { "name":"openEuler", "category":"vendor", "branches":[ { "name":"openEuler", "branches":[ { "product":{ "product_identification_helper":{ "cpe":"cpe:/a:openEuler:openEuler:22.03-LTS-SP4" }, "product_id":"openEuler-22.03-LTS-SP4", "name":"openEuler-22.03-LTS-SP4" }, 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syzbot reports the\nresulting use-after-free for the corsair-psu HID driver.\n\nEdward Adam Davis posted a per-driver fix for corsair-psu that adds\nan explicit hid_device_io_stop() before hid_hw_stop() in the probe\nerror path (\"hwmon: prevent packets from going to driver for probe\",\n2026-04-28). Auditing the tree shows 15 drivers call\nhid_device_io_start(); 7 also call hid_device_io_stop() and 8 do not:\n\n drivers calling hid_device_io_start() without a matching\n hid_device_io_stop() before hid_hw_stop():\n drivers/hwmon/corsair-psu.c (fix posted by Edward)\n drivers/hwmon/corsair-cpro.c\n drivers/hwmon/nzxt-kraken3.c\n drivers/hwmon/nzxt-smart2.c\n drivers/hwmon/gigabyte_waterforce.c\n drivers/hid/hid-logitech-dj.c\n drivers/hid/hid-nintendo.c\n drivers/hid/hid-mcp2221.c\n\nRoughly half of all callers of the API are exposed. Centralize the\nquiesce in hid_hw_stop() so callers do not have to remember the\nmatching stop: if a driver has left hdev->io_started true on entry,\ncall hid_device_io_stop() before hid_disconnect().\n\nFor the 7 drivers that already call hid_device_io_stop() correctly,\nhdev->io_started is false on entry, the guard short-circuits, and\nbehavior is unchanged.\n\nNo Fixes: tag because the affected drivers gained their\nhid_device_io_start() calls independently over years; the bug is a\nclass-wide API misuse rather than a regression from one commit.", "category":"description", "title":"Vulnerability Description" } ], "product_status":{ "fixed":[ "openEuler-22.03-LTS-SP4:kernel-5.10.0-335.0.0.236.oe2203sp4.src", "openEuler-22.03-LTS-SP4:bpftool-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:bpftool-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-5.10.0-335.0.0.236.oe2203sp4.aarch64", 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"baseScore":8.8, "vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version":"3.1" }, "products":[ "openEuler-22.03-LTS-SP4:kernel-5.10.0-335.0.0.236.oe2203sp4.src", "openEuler-22.03-LTS-SP4:bpftool-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:bpftool-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-debugsource-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-devel-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-headers-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-source-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-tools-5.10.0-335.0.0.236.oe2203sp4.aarch64", "openEuler-22.03-LTS-SP4:kernel-tools-debuginfo-5.10.0-335.0.0.236.oe2203sp4.aarch64", 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