diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
--- a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
+++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
@@ -54,6 +54,12 @@
   _(FIONBIO, READ, sizeof(int));
   _(FIONCLEX, NONE, 0);
   _(FIOSETOWN, READ, sizeof(int));
+#if SANITIZER_FREEBSD
+  _(FIOSEEKDATA, READWRITE, sizeof(__sanitizer___kernel_off_t));
+  _(FIOSEEKHOLE, READWRITE, sizeof(__sanitizer___kernel_off_t));
+  _(FIONREAD, WRITE, sizeof(int));
+  _(FIONWRITE, WRITE, sizeof(int));
+#endif
   _(SIOCATMARK, WRITE, sizeof(int));
   _(SIOCGIFCONF, CUSTOM, 0);
   _(SIOCGPGRP, WRITE, sizeof(int));
diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h
--- a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h
+++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.h
@@ -465,6 +465,10 @@
 extern unsigned IOCTL_FIOGETOWN;
 extern unsigned IOCTL_FIONBIO;
 extern unsigned IOCTL_FIONCLEX;
+extern unsigned IOCTL_FIONREAD;
+extern unsigned IOCTL_FIONWRITE;
+extern unsigned IOCTL_FIOSEEKDATA;
+extern unsigned IOCTL_FIOSEEKHOLE;
 extern unsigned IOCTL_FIOSETOWN;
 extern unsigned IOCTL_SIOCADDMULTI;
 extern unsigned IOCTL_SIOCATMARK;
diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp
--- a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp
+++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_freebsd.cpp
@@ -204,6 +204,10 @@
 unsigned IOCTL_FIOGETOWN = FIOGETOWN;
 unsigned IOCTL_FIONBIO = FIONBIO;
 unsigned IOCTL_FIONCLEX = FIONCLEX;
+unsigned IOCTL_FIONREAD = FIONREAD;
+unsigned IOCTL_FIONWRITE = FIONWRITE;
+unsigned IOCTL_FIOSEEKDATA = FIOSEEKDATA;
+unsigned IOCTL_FIOSEEKHOLE = FIOSEEKHOLE;
 unsigned IOCTL_FIOSETOWN = FIOSETOWN;
 unsigned IOCTL_SIOCADDMULTI = SIOCADDMULTI;
 unsigned IOCTL_SIOCATMARK = SIOCATMARK;