8 files changed, 34 insertions, 2 deletions

diff --git a/libc/private/logd.h b/libc/private/logd.h
index 37d4104..8970daf 100644
--- a/libc/private/logd.h
+++ b/libc/private/logd.h
@@ -30,6 +30,21 @@
 
 #include <stdarg.h>
 
+#define BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW 80100
+#define BIONIC_EVENT_STRCAT_BUFFER_OVERFLOW 80105
+#define BIONIC_EVENT_MEMMOVE_BUFFER_OVERFLOW 80110
+#define BIONIC_EVENT_STRNCAT_BUFFER_OVERFLOW 80115
+#define BIONIC_EVENT_STRNCPY_BUFFER_OVERFLOW 80120
+#define BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW 80125
+#define BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW 80130
+
+#define BIONIC_EVENT_STRCAT_INTEGER_OVERFLOW 80200
+#define BIONIC_EVENT_STRNCAT_INTEGER_OVERFLOW 80205
+
+#define BIONIC_EVENT_RESOLVER_OLD_RESPONSE 80300
+#define BIONIC_EVENT_RESOLVER_WRONG_SERVER 80305
+#define BIONIC_EVENT_RESOLVER_WRONG_QUERY 80310
+
 enum  {
     ANDROID_LOG_UNKNOWN = 0,
     ANDROID_LOG_DEFAULT,    /* only for SetMinPriority() */
diff --git a/libc/string/__memcpy_chk.c b/libc/string/__memcpy_chk.c
index aed3ec2..e79f6ac 100644
--- a/libc/string/__memcpy_chk.c
+++ b/libc/string/__memcpy_chk.c
@@ -47,6 +47,7 @@ void *__memcpy_chk (void *dest, const void *src,
     if (len > dest_len) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** memcpy buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW);
         abort();
     }
 
diff --git a/libc/string/__memmove_chk.c b/libc/string/__memmove_chk.c
index 5a6eb4d..529eb8f 100644
--- a/libc/string/__memmove_chk.c
+++ b/libc/string/__memmove_chk.c
@@ -47,6 +47,7 @@ void *__memmove_chk (void *dest, const void *src,
     if (len > dest_len) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** memmove buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_MEMMOVE_BUFFER_OVERFLOW);
         abort();
     }
 
diff --git a/libc/string/__memset_chk.c b/libc/string/__memset_chk.c
index 1ccfd46..0904c03 100644
--- a/libc/string/__memset_chk.c
+++ b/libc/string/__memset_chk.c
@@ -46,6 +46,7 @@ void *__memset_chk (void *dest, int c, size_t n, size_t dest_len)
     if (n > dest_len) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** memset buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_MEMSET_BUFFER_OVERFLOW);
         abort();
     }
 
diff --git a/libc/string/__strcat_chk.c b/libc/string/__strcat_chk.c
index 7d8c89f..4665d66 100644
--- a/libc/string/__strcat_chk.c
+++ b/libc/string/__strcat_chk.c
@@ -50,11 +50,17 @@ char *__strcat_chk (char *dest, const char *src, size_t dest_buf_size)
     size_t sum;
 
     // sum = src_len + dest_len + 1 (with overflow protection)
-    if (!safe_add3(&sum, src_len, dest_len, 1U)) abort();
+    if (!safe_add3(&sum, src_len, dest_len, 1U)) {
+        __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
+            "*** strcat integer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_STRCAT_INTEGER_OVERFLOW);
+        abort();
+    }
 
     if (sum > dest_buf_size) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** strcat buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_STRNCAT_BUFFER_OVERFLOW);
         abort();
     }
 
diff --git a/libc/string/__strcpy_chk.c b/libc/string/__strcpy_chk.c
index 85aa19d..79486b4 100644
--- a/libc/string/__strcpy_chk.c
+++ b/libc/string/__strcpy_chk.c
@@ -48,6 +48,7 @@ char *__strcpy_chk (char *dest, const char *src, size_t dest_len)
     if (src_len > dest_len) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** strcpy buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_STRCPY_BUFFER_OVERFLOW);
         abort();
     }
 
diff --git a/libc/string/__strncat_chk.c b/libc/string/__strncat_chk.c
index 0387626..2036c9f 100644
--- a/libc/string/__strncat_chk.c
+++ b/libc/string/__strncat_chk.c
@@ -54,11 +54,17 @@ char *__strncat_chk (char *dest, const char *src,
 
     size_t sum;
     // sum = src_len + dest_len + 1 (with overflow protection)
-    if (!safe_add3(&sum, src_len, dest_len, 1U)) abort();
+    if (!safe_add3(&sum, src_len, dest_len, 1U)) {
+        __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
+            "*** strncat integer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_STRNCAT_INTEGER_OVERFLOW);
+        abort();
+    }
 
     if (sum > dest_buf_size) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** strncat buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_STRNCAT_BUFFER_OVERFLOW);
         abort();
     }
 
diff --git a/libc/string/__strncpy_chk.c b/libc/string/__strncpy_chk.c
index b87ef4b..3f9e9fb 100644
--- a/libc/string/__strncpy_chk.c
+++ b/libc/string/__strncpy_chk.c
@@ -47,6 +47,7 @@ char *__strncpy_chk (char *dest, const char *src,
     if (len > dest_len) {
         __libc_android_log_print(ANDROID_LOG_FATAL, "libc",
             "*** strncpy buffer overflow detected ***\n");
+        __libc_android_log_event_uid(BIONIC_EVENT_STRNCPY_BUFFER_OVERFLOW);
         abort();
     }