In fget() of file.c, there is a possible read after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"types": [
"EoP"
],
"spl": "2022-09-05",
"severity": "High",
"vanir_signatures": [
{
"id": "ASB-A-216408350-04872399",
"signature_type": "Function",
"digest": {
"length": 312.0,
"function_hash": "50347399082138730567468486640168205875"
},
"signature_version": "v1",
"target": {
"function": "__fget_files",
"file": "fs/file.c"
},
"source": "https://android.googlesource.com/kernel/common/+/054aa8d439b9185d4f5eb9a90282d1ce74772969",
"deprecated": false
},
{
"id": "ASB-A-216408350-181bf3dd",
"signature_type": "Line",
"digest": {
"line_hashes": [
"222339155623389242937145999001050522534",
"14210766515571077282217007477797530518",
"286959784734915952769508299362550069891",
"325423163522201025610882289272510867957"
],
"threshold": 0.9
},
"signature_version": "v1",
"target": {
"file": "fs/file.c"
},
"source": "https://android.googlesource.com/kernel/common/+/054aa8d439b9185d4f5eb9a90282d1ce74772969",
"deprecated": false
}
],
"fixes": [
"https://android.googlesource.com/kernel/common/+/054aa8d439b9185d4f5eb9a90282d1ce74772969"
]
}