In incfs_kill_sb of fs/incfs/vfs.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.
{
"fixes": [
"https://android.googlesource.com/kernel/common/+/8ff940b3513cb"
],
"severity": "Moderate",
"spl": "2023-07-05",
"types": [
"EoP"
],
"vanir_signatures": [
{
"deprecated": false,
"digest": {
"function_hash": "147668398718898493696254713065507297666",
"length": 557
},
"id": "PUB-A-274172774-09a9c4e3",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://android.googlesource.com/kernel/common/+/8ff940b3513cb",
"target": {
"file": "fs/incfs/vfs.c",
"function": "incfs_kill_sb"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"317623298360155804480847603858943826978",
"286797684893871088439582177009872234277",
"13944289991695254526414690106627011366",
"95156759624767745760832467227536731194",
"239508616836012936179614430994395196423",
"310979806062974541244701132447146868294",
"338057165287853370468109722864475736852",
"26105187676654218783835296149876656878",
"137751667071352925736977295178691446256"
],
"threshold": 0.9
},
"id": "PUB-A-274172774-32b175dd",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://android.googlesource.com/kernel/common/+/8ff940b3513cb",
"target": {
"file": "fs/incfs/sysfs.c"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"155186012376764797888256866204956930662",
"7777813057297222156574016573197974264",
"325298259816957945185667684537015790690",
"180548179537029981850822467406377351727",
"128941389651242362300377522071866778238",
"84232795177472508567612016391657050435",
"24646550175687610893844767289677267840"
],
"threshold": 0.9
},
"id": "PUB-A-274172774-b2a0104c",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://android.googlesource.com/kernel/common/+/8ff940b3513cb",
"target": {
"file": "fs/incfs/vfs.c"
}
}
]
}