In ovl_rename of dir.c, there is a possible out of bounds write due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.
{
"types": [
"EoP"
],
"spl": "2022-06-05",
"severity": "Moderate",
"vanir_signatures": [
{
"id": "PUB-A-222644279-41d0db3e",
"source": "https://android.googlesource.com/kernel/common/+/9763ffd4da217",
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "fs/overlayfs/dir.c"
},
"digest": {
"threshold": 0.9,
"line_hashes": [
"170151030005314084468002250654340021501",
"191377591384557818444932335513527703582",
"320489078532703007612407923827206644200",
"52680730438330849859458845665870418895",
"165911224448185019673959135544562250421",
"63521206055783656950898186562961463433"
]
},
"signature_type": "Line"
}
],
"fixes": [
"https://android.googlesource.com/kernel/common/+/9763ffd4da217"
]
}