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Reduce JIT allocation size to 1MB.

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This commit is contained in:
Andy Nguyen 2021-10-27 21:12:07 +02:00
parent 304686cfc0
commit 3314b0e7bc
2 changed files with 9 additions and 6 deletions
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5
com/bdjb/Exploit.java
View File

@ -79,8 +79,11 @@ class Exploit implements Runnable {
socket.close();
Screen.println("[*] Executing payload...");
Screen.println("[*] Mapping payload...");
long payload = jit.mapPayload("/OS/HDD/download0/mnt_ada/payload.bin", 0x4000);
Screen.println("[+] payload: " + Long.toHexString(payload));
Screen.println("[*] Executing payload...");
int ret = (int) api.call(payload, api.dlsym(API.LIBKERNEL_MODULE_HANDLE, "sceKernelDlsym"));
Screen.println("[+] Result: " + ret);
} catch (Exception e) {

10
com/bdjb/JIT.java
View File

@ -149,12 +149,12 @@ public final class JIT {
throw new IllegalArgumentException("Invalid data section offset.");
}
// TODO: Currently we just use maximum size so that the address is predictable.
long size = MAX_CODE_SIZE;
// TODO: Currently we hardcode the size so that the address is predictable.
long size = 1 * 1024 * 1024;
// long size = file.length() + 0x88 + ALIGNMENT - 1;
// if (size >= MAX_CODE_SIZE) {
// throw new IllegalArgumentException("Payload is too big.");
// }
if (size >= MAX_CODE_SIZE) {
throw new IllegalArgumentException("Payload is too big.");
}
// Allocate JIT memory.
long name = api.malloc(4);