In emulationprochandler of armv8_deprecated.c, there is a possible way to corrupt memory 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.
{ "vanir_signatures": [ { "digest": { "threshold": 0.9, "line_hashes": [ "1960440008552637471522873735239669356", "71844346838708569953038098060445377091", "106624606123905936178813100954168939776", "188858779439744046596293998490388425982", "7998542420089299705562643897603328374", "79396103650214263694030792217223562231", "328689374300287942133517738301719913541", "35230617379854447449197200111902401572", "97230348670262614986427894498271489776", "44336810520464106678161697200492986320", "229247971708747393122600108442160232851", "322694686092827087889234089072531928242", "16530959085057227706431841715011493790", "20727372310159674985234954931761826626", "325466685051034611159332988025943913907", "192153659792134627944417308329088738987", "214527160207516761093630398328987179082", "107808490887006591694422837588088027843" ] }, "id": "ASB-A-237540956-2b776679", "source": "https://android.googlesource.com/kernel/common/+/885349f53dd73", "deprecated": false, "signature_version": "v1", "target": { "file": "arch/arm64/kernel/armv8_deprecated.c" }, "signature_type": "Line" }, { "digest": { "length": 506.0, "function_hash": "208061974099580248824470922620832625234" }, "id": "ASB-A-237540956-38dedc93", "source": "https://android.googlesource.com/kernel/common/+/885349f53dd73", "deprecated": false, "signature_version": "v1", "target": { "file": "arch/arm64/kernel/armv8_deprecated.c", "function": "emulation_proc_handler" }, "signature_type": "Function" }, { "digest": { "length": 630.0, "function_hash": "34727716310740305401880678320967446606" }, "id": "ASB-A-237540956-c6741cac", "source": "https://android.googlesource.com/kernel/common/+/885349f53dd73", "deprecated": false, "signature_version": "v1", "target": { "file": "arch/arm64/kernel/armv8_deprecated.c", "function": "register_insn_emulation_sysctl" }, "signature_type": "Function" } ], "fixes": [ "https://android.googlesource.com/kernel/common/+/885349f53dd73" ], "spl": "2022-10-05", "severity": "High", "types": [ "EoP" ] }