1 files changed, 2 insertions, 1 deletions
diff --git a/libc/bionic/libc_logging.cpp b/libc/bionic/libc_logging.cpp
index d6fa1db78..b57e24297 100644
--- a/libc/bionic/libc_logging.cpp
+++ b/libc/bionic/libc_logging.cpp
@@ -230,6 +230,7 @@ static void SendRepeat(Out& o, char ch, int count) {
 /* Perform formatted output to an output target 'o' */
 template <typename Out>
 static void out_vformat(Out& o, const char* format, va_list args) {
+    int caller_errno = errno;
     int nn = 0;
 
     for (;;) {
@@ -380,7 +381,7 @@ static void out_vformat(Out& o, const char* format, va_list args) {
             buffer[1] = '\0';
         } else if (c == 'm') {
             // syslog-like %m for strerror(errno).
-            str = strerror(errno);
+            str = strerror(caller_errno);
         } else {
             __assert(__FILE__, __LINE__, "conversion specifier unsupported");
         }