In llcpsockbind/connect of llcp_sock.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
{
"types": [
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"spl": "2021-12-05",
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"target": {
"file": "net/nfc/llcp_sock.c"
},
"source": "https://android.googlesource.com/kernel/common/+/c61760e6940d",
"id": "PUB-A-188883590-2a529ed9",
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{
"signature_type": "Function",
"digest": {
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"length": 1641.0
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"target": {
"file": "net/nfc/llcp_sock.c",
"function": "llcp_sock_bind"
},
"source": "https://android.googlesource.com/kernel/common/+/c61760e6940d",
"id": "PUB-A-188883590-5fd903ce",
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"length": 2419.0
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"target": {
"file": "net/nfc/llcp_sock.c",
"function": "llcp_sock_connect"
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"id": "PUB-A-188883590-965cb533",
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"fixes": [
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],
"severity": "Moderate"
}