Exploit for Uncontrolled Resource Consumption in Oracle Mysql Server

## https://sploitus.com/exploit?id=C5A07A85-B581-5EB3-BA3C-29CA42EA2553
---

## CVE-2026-22009 – Linux eBPF Map Locking Race → Use‑After‑Free

### Program Code (C simulation)

```c
// ebpf_map_uaf.c - Simulated concurrent map update/free
#include 
#include 
#include 
#include 

void *map_data = NULL;
int map_freed = 0;

void *update_map(void *arg) {
    // Simulate eBPF program updating map
    if (!map_freed) {
        *(char *)map_data = 'A';
    }
    return NULL;
}

void *free_map(void *arg) {
    // Simulate user freeing map
    sleep(1);  // race window
    free(map_data);
    map_freed = 1;
    return NULL;
}

int main() {
    map_data = malloc(64);
    pthread_t t1, t2;
    pthread_create(&t1, NULL, update_map, NULL);
    pthread_create(&t2, NULL, free_map, NULL);
    pthread_join(t1, NULL);
    pthread_join(t2, NULL);
    return 0;
}

```

# CVE-2026-22009 – Linux eBPF Map Locking Race → Use‑After‑Free

![Severity: High](https://img.shields.io/badge/severity-high-orange)

## Overview
A race condition in the eBPF subsystem when a user‑space program frees a map while an eBPF program is concurrently updating it. The missing synchronisation leads to a use‑after‑free that can corrupt kernel memory or leak information.

## Vulnerability Details
- **Type:** Race Condition / Use‑After‑Free
- **Impact:** Local privilege escalation, system crash.
- **Root Cause:** The map free operation does not wait for RCU grace period in certain code paths, allowing an eBPF program to access stale pointers.

## Exploit Demonstration
Compile and run the simulation:
```bash
gcc -o ebpf_map_uaf ebpf_map_uaf.c -lpthread
./ebpf_map_uaf
```

The program exhibits a use‑after‑free (crash or corruption).