diff --git a/Cargo.lock b/Cargo.lock
index 575a86afe..6e3295e6a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -37,7 +37,7 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-ioctls 0.2.0 (git+https://github.com/rust-vmm/kvm-ioctls)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "linux-loader 0.1.0 (git+https://github.com/rust-vmm/linux-loader)",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
@@ -65,7 +65,7 @@ name = "atty"
 version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -81,7 +81,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "backtrace-sys 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -91,7 +91,7 @@ version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -174,7 +174,7 @@ dependencies = [
  "dirs 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "epoll 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_gen 0.1.0",
  "net_util 0.1.0",
@@ -228,7 +228,7 @@ dependencies = [
  "epoll 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-ioctls 0.2.0 (git+https://github.com/rust-vmm/kvm-ioctls)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
@@ -250,7 +250,7 @@ version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_users 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -261,7 +261,7 @@ version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -295,7 +295,7 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "wasi 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -337,7 +337,7 @@ version = "0.2.0"
 source = "git+https://github.com/rust-vmm/kvm-ioctls#30adb021584845eed4124bc8ef3b2b96cd9e159f"
 dependencies = [
  "kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -347,7 +347,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.62"
+version = "0.2.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -356,7 +356,7 @@ version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.51 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -369,7 +369,7 @@ version = "1.0.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -420,7 +420,7 @@ name = "net_util"
 version = "0.1.0"
 dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_gen 0.1.0",
  "pnet 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -439,7 +439,7 @@ name = "num_cpus"
 version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -449,7 +449,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "autocfg 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.45 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -462,7 +462,7 @@ dependencies = [
  "devices 0.1.0",
  "kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-ioctls 0.2.0 (git+https://github.com/rust-vmm/kvm-ioctls)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-allocator 0.1.0",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
@@ -498,7 +498,7 @@ version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ipnetwork 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "pnet_base 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pnet_sys 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -539,7 +539,7 @@ name = "pnet_sys"
 version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -549,7 +549,7 @@ name = "pnet_transport"
 version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "pnet_base 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pnet_packet 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pnet_sys 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -573,7 +573,7 @@ name = "qcow"
 version = "0.1.0"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "remain 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -594,7 +594,7 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -606,7 +606,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "getrandom 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_chacha 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -657,7 +657,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rdrand 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -777,7 +777,7 @@ name = "signal-hook"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "signal-hook-registry 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -787,7 +787,7 @@ version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arc-swap 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -796,7 +796,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "libssh2-sys 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -840,7 +840,7 @@ name = "syntex_errors"
 version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_pos 0.42.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -862,7 +862,7 @@ version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_errors 0.42.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -886,7 +886,7 @@ version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "redox_syscall 0.1.56 (registry+https://github.com/rust-lang/crates.io-index)",
  "remove_dir_all 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -964,7 +964,7 @@ dependencies = [
  "devices 0.1.0",
  "kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-ioctls 0.2.0 (git+https://github.com/rust-vmm/kvm-ioctls)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "pci 0.1.0",
  "vfio-bindings 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -986,7 +986,7 @@ name = "vhost_rs"
 version = "0.1.0"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
  "vmm-sys-util 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -997,7 +997,7 @@ name = "vhost_user_backend"
 version = "0.1.0"
 dependencies = [
  "epoll 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "vhost_rs 0.1.0",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
  "vm-virtio 0.1.0",
@@ -1018,7 +1018,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "vm-allocator"
 version = "0.1.0"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
 ]
 
@@ -1028,7 +1028,7 @@ version = "0.1.0"
 source = "git+https://github.com/rust-vmm/vm-memory#8669369d17a470d72743fc616a26ee6b95f230f5"
 dependencies = [
  "cast 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1039,7 +1039,7 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "devices 0.1.0",
  "epoll 4.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "net_gen 0.1.0",
  "net_util 0.1.0",
@@ -1063,7 +1063,7 @@ dependencies = [
  "kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "kvm-ioctls 0.2.0 (git+https://github.com/rust-vmm/kvm-ioctls)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
  "linux-loader 0.1.0 (git+https://github.com/rust-vmm/linux-loader)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "micro_http 0.1.0 (git+https://github.com/firecracker-microvm/firecracker)",
@@ -1087,7 +1087,7 @@ name = "vmm-sys-util"
 version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1171,7 +1171,7 @@ dependencies = [
 "checksum kvm-bindings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c223e8703d2eb76d990c5f58e29c85b0f6f50e24b823babde927948e7c71fc03"
 "checksum kvm-ioctls 0.2.0 (git+https://github.com/rust-vmm/kvm-ioctls)" = "<none>"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-"checksum libc 0.2.62 (registry+https://github.com/rust-lang/crates.io-index)" = "34fcd2c08d2f832f376f4173a231990fa5aef4e99fb569867318a227ef4c06ba"
+"checksum libc 0.2.64 (registry+https://github.com/rust-lang/crates.io-index)" = "74dfca3d9957906e8d1e6a0b641dc9a59848e793f1da2165889fd4f62d10d79c"
 "checksum libssh2-sys 0.2.12 (registry+https://github.com/rust-lang/crates.io-index)" = "8914d10b159fc288f2b6f253c94bd0c15a777fd5a297691141d89674b87e66fd"
 "checksum libz-sys 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "2eb5e43362e38e2bca2fd5f5134c4d4564a23a5c28e9b95411652021a8675ebe"
 "checksum linux-loader 0.1.0 (git+https://github.com/rust-vmm/linux-loader)" = "<none>"
diff --git a/Cargo.toml b/Cargo.toml
index a47192b6c..0000f6c89 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 clap = "2.33.0"
 epoll = "4.1.0"
 lazy_static = "1.4.0"
-libc = "0.2.62"
+libc = "0.2.64"
 log = { version = "0.4.8", features = ["std"] }
 net_gen = { path = "net_gen" }
 net_util = { path = "net_util" }
diff --git a/vhost_user_backend/Cargo.toml b/vhost_user_backend/Cargo.toml
index fe7d8ee0b..8c67e2725 100644
--- a/vhost_user_backend/Cargo.toml
+++ b/vhost_user_backend/Cargo.toml
@@ -11,7 +11,7 @@ mmio_support = ["vm-virtio/mmio_support"]
 
 [dependencies]
 epoll = "4.1.0"
-libc = "0.2.60"
+libc = "0.2.64"
 vm-memory = { git = "https://github.com/rust-vmm/vm-memory" } 
 vm-virtio = { path = "../vm-virtio" }
 vmm-sys-util = "0.1.1"