diff --git a/AK/MappedFile.cpp b/AK/MappedFile.cpp
index 68e2a7abfb6..83baecfaa4a 100644
--- a/AK/MappedFile.cpp
+++ b/AK/MappedFile.cpp
@@ -13,7 +13,7 @@ namespace AK {
 MappedFile::MappedFile(const StringView& file_name)
 {
     m_size = PAGE_SIZE;
-    m_fd = open(String(file_name).characters(), O_RDONLY | O_CLOEXEC);
+    m_fd = open_with_path_length(file_name.characters_without_null_termination(), file_name.length(), O_RDONLY | O_CLOEXEC, 0);
 
     if (m_fd != -1) {
         struct stat st;
diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 8802cf784aa..0d8035cc7db 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -1127,12 +1127,18 @@ int Process::number_of_open_file_descriptors() const
     return count;
 }
 
-int Process::sys$open(const char* path, int options, mode_t mode)
+int Process::sys$open(const Syscall::SC_open_params* params)
 {
+    if (!validate_read_typed(params))
+        return -EFAULT;
+    auto* path = params->path;
+    auto path_length = params->path_length;
+    auto options = params->options;
+    auto mode = params->mode;
 #ifdef DEBUG_IO
     dbgprintf("%s(%u) sys$open(\"%s\")\n", name().characters(), pid(), path);
 #endif
-    if (!validate_read_str(path))
+    if (!validate_read(path, path_length))
         return -EFAULT;
     int fd = alloc_fd();
     if (fd < 0)
diff --git a/Kernel/Process.h b/Kernel/Process.h
index c3205288651..59491f31cbf 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -118,7 +118,7 @@ public:
     pid_t sys$getpid();
     pid_t sys$getppid();
     mode_t sys$umask(mode_t);
-    int sys$open(const char* path, int options, mode_t mode = 0);
+    int sys$open(const Syscall::SC_open_params*);
     int sys$close(int fd);
     ssize_t sys$read(int fd, u8*, ssize_t);
     ssize_t sys$write(int fd, const u8*, ssize_t);
diff --git a/Kernel/Syscall.cpp b/Kernel/Syscall.cpp
index df301686cfc..a8b54e79d28 100644
--- a/Kernel/Syscall.cpp
+++ b/Kernel/Syscall.cpp
@@ -85,7 +85,7 @@ static u32 handle(RegisterDump& regs, u32 function, u32 arg1, u32 arg2, u32 arg3
     case Syscall::SC_getcwd:
         return current->process().sys$getcwd((char*)arg1, (size_t)arg2);
     case Syscall::SC_open:
-        return current->process().sys$open((const char*)arg1, (int)arg2, (mode_t)arg3);
+        return current->process().sys$open((const SC_open_params*)arg1);
     case Syscall::SC_write:
         return current->process().sys$write((int)arg1, (const u8*)arg2, (ssize_t)arg3);
     case Syscall::SC_close:
diff --git a/Kernel/Syscall.h b/Kernel/Syscall.h
index 51e3dce7535..58b6e9d44e6 100644
--- a/Kernel/Syscall.h
+++ b/Kernel/Syscall.h
@@ -148,6 +148,13 @@ struct SC_mmap_params {
     const char* name { nullptr };
 };
 
+struct SC_open_params {
+    const char* path;
+    int path_length;
+    int options;
+    u16 mode;
+};
+
 struct SC_select_params {
     int nfds;
     fd_set* readfds;
diff --git a/Libraries/LibC/unistd.cpp b/Libraries/LibC/unistd.cpp
index 4744ee5f587..d4622bba1f6 100644
--- a/Libraries/LibC/unistd.cpp
+++ b/Libraries/LibC/unistd.cpp
@@ -166,13 +166,29 @@ int creat(const char* path, mode_t mode)
     return open(path, O_CREAT | O_WRONLY | O_TRUNC, mode);
 }
 
+int creat_with_path_length(const char* path, size_t path_length, mode_t mode)
+{
+    return open_with_path_length(path, path_length, O_CREAT | O_WRONLY | O_TRUNC, mode);
+}
+
+int open_with_path_length(const char* path, size_t path_length, int options, mode_t mode)
+{
+    if (path_length > INT32_MAX) {
+        errno = EINVAL;
+        return -1;
+    }
+    Syscall::SC_open_params params { path, (int)path_length, options, mode };
+    int rc = syscall(SC_open, &params);
+    __RETURN_WITH_ERRNO(rc, rc, -1);
+}
+
 int open(const char* path, int options, ...)
 {
     va_list ap;
     va_start(ap, options);
-    int rc = syscall(SC_open, path, options, (mode_t)va_arg(ap, unsigned));
+    auto mode = (mode_t)va_arg(ap, unsigned);
     va_end(ap);
-    __RETURN_WITH_ERRNO(rc, rc, -1);
+    return open_with_path_length(path, strlen(path), options, mode);
 }
 
 ssize_t read(int fd, void* buf, size_t count)
diff --git a/Libraries/LibC/unistd.h b/Libraries/LibC/unistd.h
index cfe5c26b26d..42235b0e636 100644
--- a/Libraries/LibC/unistd.h
+++ b/Libraries/LibC/unistd.h
@@ -55,6 +55,8 @@ pid_t tcgetpgrp(int fd);
 int tcsetpgrp(int fd, pid_t pgid);
 int creat(const char* path, mode_t);
 int open(const char* path, int options, ...);
+int creat_with_path_length(const char* path, size_t path_length, mode_t);
+int open_with_path_length(const char* path, size_t path_length, int options, mode_t);
 ssize_t read(int fd, void* buf, size_t count);
 ssize_t write(int fd, const void* buf, size_t count);
 int close(int fd);
diff --git a/Libraries/LibGUI/GTextEditor.cpp b/Libraries/LibGUI/GTextEditor.cpp
index 3feb6d6d78c..9661a510974 100644
--- a/Libraries/LibGUI/GTextEditor.cpp
+++ b/Libraries/LibGUI/GTextEditor.cpp
@@ -844,7 +844,7 @@ void GTextEditor::Line::truncate(int length)
 
 bool GTextEditor::write_to_file(const StringView& path)
 {
-    int fd = open(String(path).characters(), O_WRONLY | O_CREAT | O_TRUNC, 0666);
+    int fd = open_with_path_length(path.characters_without_null_termination(), path.length(), O_WRONLY | O_CREAT | O_TRUNC, 0666);
     if (fd < 0) {
         perror("open");
         return false;
diff --git a/SharedGraphics/Font.cpp b/SharedGraphics/Font.cpp
index ec34aaab88f..b46495ad3bb 100644
--- a/SharedGraphics/Font.cpp
+++ b/SharedGraphics/Font.cpp
@@ -127,7 +127,7 @@ RefPtr<Font> Font::load_from_file(const StringView& path)
 
 bool Font::write_to_file(const StringView& path)
 {
-    int fd = creat(String(path).characters(), 0644);
+    int fd = creat_with_path_length(path.characters_without_null_termination(), path.length(), 0644);
     if (fd < 0) {
         perror("open");
         return false;