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-rw-r--r--src/qt/guiutil.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index b9f0be41e3..6e88b57e08 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -615,9 +615,10 @@ bool SetStartOnSystemStartup(bool fAutoStart)
else
{
char pszExePath[MAX_PATH+1];
- ssize_t r = readlink("/proc/self/exe", pszExePath, sizeof(pszExePath) - 1);
- if (r == -1)
+ ssize_t r = readlink("/proc/self/exe", pszExePath, sizeof(pszExePath));
+ if (r == -1 || r > MAX_PATH) {
return false;
+ }
pszExePath[r] = '\0';
fs::create_directories(GetAutostartDir());