CVE-2026-93189 (GCVE-0-2026-93189)
Vulnerability from cvelistv5 – Published: 2026-09-17 16:12 – Updated: 2026-09-17 16:12
VLAI
EPSS
VEX
Title
HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
Summary
In the Linux kernel, the following vulnerability has been resolved:
HID: core: quiesce input in hid_hw_stop() to prevent use-after-free
A driver's probe calls hid_device_io_start() to enable input delivery,
then fails at a later initialization step and unwinds via hid_hw_stop().
The unwind frees struct hidraw via hidraw_disconnect() while in-flight
HID reports may still be running on another CPU, dereferencing the
freed object through hidraw_report_event(). syzbot reports the
resulting use-after-free for the corsair-psu HID driver.
Edward Adam Davis posted a per-driver fix for corsair-psu that adds
an explicit hid_device_io_stop() before hid_hw_stop() in the probe
error path ("hwmon: prevent packets from going to driver for probe",
2026-04-28). Auditing the tree shows 15 drivers call
hid_device_io_start(); 7 also call hid_device_io_stop() and 8 do not:
drivers calling hid_device_io_start() without a matching
hid_device_io_stop() before hid_hw_stop():
drivers/hwmon/corsair-psu.c (fix posted by Edward)
drivers/hwmon/corsair-cpro.c
drivers/hwmon/nzxt-kraken3.c
drivers/hwmon/nzxt-smart2.c
drivers/hwmon/gigabyte_waterforce.c
drivers/hid/hid-logitech-dj.c
drivers/hid/hid-nintendo.c
drivers/hid/hid-mcp2221.c
Roughly half of all callers of the API are exposed. Centralize the
quiesce in hid_hw_stop() so callers do not have to remember the
matching stop: if a driver has left hdev->io_started true on entry,
call hid_device_io_stop() before hid_disconnect().
For the 7 drivers that already call hid_device_io_stop() correctly,
hdev->io_started is false on entry, the guard short-circuits, and
behavior is unchanged.
No Fixes: tag because the affected drivers gained their
hid_device_io_start() calls independently over years; the bug is a
class-wide API misuse rather than a regression from one commit.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0744cb9520aade37e78f69134f3111086158f1d2
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c876c437d188911685d8bed645416f2e86bd0354 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6787f1828f5616f17250e108c0031fb96fd2cfe6 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 92cca302a4eaf65d1b38b3fb600b4ee5eb856a51 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 544ebb25bd58f67e821573412ab7a982b9e02211 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0fecd89f979a8653b9a5b0816570329b7a94a081 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a4bc41504690b7d7064931909874f5b98cd148b6 (git) Affected: 0 , < 5.10.270 (semver) Affected: 0 , < 5.15.221 (semver) Affected: 0 , < 6.1.188 (semver) Affected: 0 , < 6.6.157 (semver) Affected: 0 , < 6.12.110 (semver) Affected: 0 , < 6.18.52 (semver) Affected: 0 , < 7.2.6 (semver) |
guessed | |
| Linux | Linux |
Unaffected:
5.10.270 , ≤ 5.10.*
(semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix) |
guessed |
{
"containers": {
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/hid/hid-core.c"
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"versionType": "semver"
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{
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"version": "0",
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{
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"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.12.110",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.18.52",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "7.2.6",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/hid/hid-core.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.2.*",
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.3-rc1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.270",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.221",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.188",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.157",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.110",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.52",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.2.6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.3-rc1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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\u0027s 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-\u003eio_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-\u003eio_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."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T16:12:14.234Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0744cb9520aade37e78f69134f3111086158f1d2"
},
{
"url": "https://git.kernel.org/stable/c/c876c437d188911685d8bed645416f2e86bd0354"
},
{
"url": "https://git.kernel.org/stable/c/6787f1828f5616f17250e108c0031fb96fd2cfe6"
},
{
"url": "https://git.kernel.org/stable/c/92cca302a4eaf65d1b38b3fb600b4ee5eb856a51"
},
{
"url": "https://git.kernel.org/stable/c/02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87"
},
{
"url": "https://git.kernel.org/stable/c/544ebb25bd58f67e821573412ab7a982b9e02211"
},
{
"url": "https://git.kernel.org/stable/c/0fecd89f979a8653b9a5b0816570329b7a94a081"
},
{
"url": "https://git.kernel.org/stable/c/a4bc41504690b7d7064931909874f5b98cd148b6"
}
],
"title": "HID: core: quiesce input in hid_hw_stop() to prevent use-after-free",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-93189",
"datePublished": "2026-09-17T16:12:14.234Z",
"dateReserved": "2026-09-17T16:02:15.091Z",
"dateUpdated": "2026-09-17T16:12:14.234Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-93189\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-09-17T17:18:15.027\",\"lastModified\":\"2026-09-17T17:18:15.027\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027s 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-\u003eio_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-\u003eio_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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/hid/hid-core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"0744cb9520aade37e78f69134f3111086158f1d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"c876c437d188911685d8bed645416f2e86bd0354\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"6787f1828f5616f17250e108c0031fb96fd2cfe6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"92cca302a4eaf65d1b38b3fb600b4ee5eb856a51\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"544ebb25bd58f67e821573412ab7a982b9e02211\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"0fecd89f979a8653b9a5b0816570329b7a94a081\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2\",\"lessThan\":\"a4bc41504690b7d7064931909874f5b98cd148b6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.10.270\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.15.221\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.1.188\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.6.157\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.12.110\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.18.52\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"7.2.6\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/hid/hid-core.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.10.270\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.221\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.188\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.157\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.110\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.52\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2.6\",\"lessThanOrEqual\":\"7.2.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.3-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/02246d8b462fd9bd90bc7ae7d6cab1acf69bcb87\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0744cb9520aade37e78f69134f3111086158f1d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0fecd89f979a8653b9a5b0816570329b7a94a081\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/544ebb25bd58f67e821573412ab7a982b9e02211\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6787f1828f5616f17250e108c0031fb96fd2cfe6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/92cca302a4eaf65d1b38b3fb600b4ee5eb856a51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4bc41504690b7d7064931909874f5b98cd148b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c876c437d188911685d8bed645416f2e86bd0354\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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