cvelist/2021/46xxx/CVE-2021-46906.json
2024-02-26 18:00:36 +00:00

158 lines
8.1 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2021-46906",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: usbhid: fix info leak in hid_submit_ctrl\n\nIn hid_submit_ctrl(), the way of calculating the report length doesn't\ntake into account that report->size can be zero. When running the\nsyzkaller reproducer, a report of size 0 causes hid_submit_ctrl) to\ncalculate transfer_buffer_length as 16384. When this urb is passed to\nthe usb core layer, KMSAN reports an info leak of 16384 bytes.\n\nTo fix this, first modify hid_report_len() to account for the zero\nreport size case by using DIV_ROUND_UP for the division. Then, call it\nfrom hid_submit_ctrl()."
}
]
},
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"description": [
{
"lang": "eng",
"value": "n/a"
}
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"affects": {
"vendor": {
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"vendor_name": "Linux",
"product": {
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"product_name": "Linux",
"version": {
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"version_affected": "<",
"version_name": "1da177e4c3f4",
"version_value": "c5d3c142f2d5"
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{
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"version": "4.4.274",
"lessThanOrEqual": "4.4.*",
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"name": "https://git.kernel.org/stable/c/c5d3c142f2d57d40c55e65d5622d319125a45366"
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