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fix starved bug in vanilla kvm mode (caused by reading of uninitialized memory)

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This commit is contained in:
Sergej Schumilo 2022-05-11 16:51:18 +02:00
parent d4ba169bea
commit 108fa3baf9
1 changed files with 3 additions and 3 deletions
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6
nyx/hypercall/hypercall.c
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@ -349,8 +349,8 @@ void handle_hypercall_kafl_release(struct kvm_run *run, CPUState *cpu, uint64_t
if (init_state){ if (init_state){
init_state = false; init_state = false;
} else { } else {
//printf(CORE_PREFIX, "Got STARVED notification (num=%llu)\n", run->hypercall.args[0]); //printf(CORE_PREFIX, "Got STARVED notification (num=%llu)\n", hypercall_arg);
if (run->hypercall.args[0] > 0) { if (hypercall_arg > 0) {
GET_GLOBAL_STATE()->starved = 1; GET_GLOBAL_STATE()->starved = 1;
} else { } else {
GET_GLOBAL_STATE()->starved = 0; GET_GLOBAL_STATE()->starved = 0;
@ -561,7 +561,7 @@ static void handle_hypercall_kafl_create_tmp_snapshot(struct kvm_run *run, CPUSt
//handle_hypercall_kafl_acquire(run, cpu); //handle_hypercall_kafl_acquire(run, cpu);
//fprintf(stderr, "%s: CREATE DONE at %lx\n", __func__, get_rip(cpu)); //fprintf(stderr, "%s: CREATE DONE at %lx\n", __func__, get_rip(cpu));
handle_hypercall_kafl_release(run, cpu, (uint64_t)run->hypercall.args[0]); handle_hypercall_kafl_release(run, cpu, hypercall_arg);
} }
else{ else{
//fprintf(stderr, "%s: LOAD Continue at %lx\n", __func__, get_rip(cpu)); //fprintf(stderr, "%s: LOAD Continue at %lx\n", __func__, get_rip(cpu));