diff --git a/unix/linux/Dockerfile b/unix/linux/Dockerfile
index a779033..18d3acd 100644
--- a/unix/linux/Dockerfile
+++ b/unix/linux/Dockerfile
@@ -15,15 +15,15 @@
 # Get the git sources. If not cached, this takes O(5 minutes).
 WORKDIR /git
 RUN git config --global advice.detachedHead false
-# Linux Kernel: Released 23 Apr 2023
-RUN git clone --branch v6.3 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
-# GNU C library: Released 1 Feb 2022
+# Linux Kernel: Released 25 June 2023
+RUN git clone --branch v6.4 --depth 1 https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux
+# GNU C library: Released 1 Feb 2023
 RUN git clone --branch release/2.37/master --depth 1 https://sourceware.org/git/glibc.git
 
 # Get Go
-ENV GOLANG_VERSION 1.20.5
+ENV GOLANG_VERSION 1.21rc2
 ENV GOLANG_DOWNLOAD_URL https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
-ENV GOLANG_DOWNLOAD_SHA256 d7ec48cde0d3d2be2c69203bc3e0a44de8660b9c09a6e85c4732a3f7dc442612
+ENV GOLANG_DOWNLOAD_SHA256 8fe90332727c606019e80a7368e23f5e65ad59520e45ee4010692f15572e45c6
 
 RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz \
     && echo "$GOLANG_DOWNLOAD_SHA256  golang.tar.gz" | sha256sum -c - \
diff --git a/unix/zerrors_linux.go b/unix/zerrors_linux.go
index c097b48..3784f40 100644
--- a/unix/zerrors_linux.go
+++ b/unix/zerrors_linux.go
@@ -827,9 +827,9 @@
 	DM_UUID_FLAG                                = 0x4000
 	DM_UUID_LEN                                 = 0x81
 	DM_VERSION                                  = 0xc138fd00
-	DM_VERSION_EXTRA                            = "-ioctl (2022-07-28)"
+	DM_VERSION_EXTRA                            = "-ioctl (2023-03-01)"
 	DM_VERSION_MAJOR                            = 0x4
-	DM_VERSION_MINOR                            = 0x2f
+	DM_VERSION_MINOR                            = 0x30
 	DM_VERSION_PATCHLEVEL                       = 0x0
 	DT_BLK                                      = 0x6
 	DT_CHR                                      = 0x2
@@ -2213,6 +2213,7 @@
 	PACKET_USER                                 = 0x6
 	PACKET_VERSION                              = 0xa
 	PACKET_VNET_HDR                             = 0xf
+	PACKET_VNET_HDR_SZ                          = 0x18
 	PARITY_CRC16_PR0                            = 0x2
 	PARITY_CRC16_PR0_CCITT                      = 0x4
 	PARITY_CRC16_PR1                            = 0x3
@@ -2371,6 +2372,7 @@
 	PR_FP_EXC_UND                               = 0x40000
 	PR_FP_MODE_FR                               = 0x1
 	PR_FP_MODE_FRE                              = 0x2
+	PR_GET_AUXV                                 = 0x41555856
 	PR_GET_CHILD_SUBREAPER                      = 0x25
 	PR_GET_DUMPABLE                             = 0x3
 	PR_GET_ENDIAN                               = 0x13
@@ -2380,6 +2382,7 @@
 	PR_GET_IO_FLUSHER                           = 0x3a
 	PR_GET_KEEPCAPS                             = 0x7
 	PR_GET_MDWE                                 = 0x42
+	PR_GET_MEMORY_MERGE                         = 0x44
 	PR_GET_NAME                                 = 0x10
 	PR_GET_NO_NEW_PRIVS                         = 0x27
 	PR_GET_PDEATHSIG                            = 0x2
@@ -2436,6 +2439,7 @@
 	PR_SET_IO_FLUSHER                           = 0x39
 	PR_SET_KEEPCAPS                             = 0x8
 	PR_SET_MDWE                                 = 0x41
+	PR_SET_MEMORY_MERGE                         = 0x43
 	PR_SET_MM                                   = 0x23
 	PR_SET_MM_ARG_END                           = 0x9
 	PR_SET_MM_ARG_START                         = 0x8
@@ -2519,6 +2523,7 @@
 	PTRACE_GETSIGMASK                           = 0x420a
 	PTRACE_GET_RSEQ_CONFIGURATION               = 0x420f
 	PTRACE_GET_SYSCALL_INFO                     = 0x420e
+	PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG     = 0x4211
 	PTRACE_INTERRUPT                            = 0x4207
 	PTRACE_KILL                                 = 0x8
 	PTRACE_LISTEN                               = 0x4208
@@ -2549,6 +2554,7 @@
 	PTRACE_SETREGSET                            = 0x4205
 	PTRACE_SETSIGINFO                           = 0x4203
 	PTRACE_SETSIGMASK                           = 0x420b
+	PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG     = 0x4210
 	PTRACE_SINGLESTEP                           = 0x9
 	PTRACE_SYSCALL                              = 0x18
 	PTRACE_SYSCALL_INFO_ENTRY                   = 0x1
@@ -3085,7 +3091,7 @@
 	TASKSTATS_GENL_NAME                         = "TASKSTATS"
 	TASKSTATS_GENL_VERSION                      = 0x1
 	TASKSTATS_TYPE_MAX                          = 0x6
-	TASKSTATS_VERSION                           = 0xd
+	TASKSTATS_VERSION                           = 0xe
 	TCIFLUSH                                    = 0x0
 	TCIOFF                                      = 0x2
 	TCIOFLUSH                                   = 0x2
diff --git a/unix/zsysnum_linux_s390x.go b/unix/zsysnum_linux_s390x.go
index 7ea4652..e6ed7d6 100644
--- a/unix/zsysnum_linux_s390x.go
+++ b/unix/zsysnum_linux_s390x.go
@@ -372,6 +372,7 @@
 	SYS_LANDLOCK_CREATE_RULESET = 444
 	SYS_LANDLOCK_ADD_RULE       = 445
 	SYS_LANDLOCK_RESTRICT_SELF  = 446
+	SYS_MEMFD_SECRET            = 447
 	SYS_PROCESS_MRELEASE        = 448
 	SYS_FUTEX_WAITV             = 449
 	SYS_SET_MEMPOLICY_HOME_NODE = 450
diff --git a/unix/ztypes_linux.go b/unix/ztypes_linux.go
index fce104b..02e2462 100644
--- a/unix/ztypes_linux.go
+++ b/unix/ztypes_linux.go
@@ -3799,7 +3799,7 @@
 	ETHTOOL_A_RINGS_TCP_DATA_SPLIT            = 0xb
 	ETHTOOL_A_RINGS_CQE_SIZE                  = 0xc
 	ETHTOOL_A_RINGS_TX_PUSH                   = 0xd
-	ETHTOOL_A_RINGS_MAX                       = 0xe
+	ETHTOOL_A_RINGS_MAX                       = 0x10
 	ETHTOOL_A_CHANNELS_UNSPEC                 = 0x0
 	ETHTOOL_A_CHANNELS_HEADER                 = 0x1
 	ETHTOOL_A_CHANNELS_RX_MAX                 = 0x2
@@ -4494,7 +4494,7 @@
 	NL80211_ATTR_MAC_HINT                                   = 0xc8
 	NL80211_ATTR_MAC_MASK                                   = 0xd7
 	NL80211_ATTR_MAX_AP_ASSOC_STA                           = 0xca
-	NL80211_ATTR_MAX                                        = 0x142
+	NL80211_ATTR_MAX                                        = 0x145
 	NL80211_ATTR_MAX_CRIT_PROT_DURATION                     = 0xb4
 	NL80211_ATTR_MAX_CSA_COUNTERS                           = 0xce
 	NL80211_ATTR_MAX_MATCH_SETS                             = 0x85
@@ -4723,7 +4723,7 @@
 	NL80211_BAND_ATTR_HT_CAPA                               = 0x4
 	NL80211_BAND_ATTR_HT_MCS_SET                            = 0x3
 	NL80211_BAND_ATTR_IFTYPE_DATA                           = 0x9
-	NL80211_BAND_ATTR_MAX                                   = 0xb
+	NL80211_BAND_ATTR_MAX                                   = 0xd
 	NL80211_BAND_ATTR_RATES                                 = 0x2
 	NL80211_BAND_ATTR_VHT_CAPA                              = 0x8
 	NL80211_BAND_ATTR_VHT_MCS_SET                           = 0x7
@@ -4864,7 +4864,7 @@
 	NL80211_CMD_LEAVE_IBSS                                  = 0x2c
 	NL80211_CMD_LEAVE_MESH                                  = 0x45
 	NL80211_CMD_LEAVE_OCB                                   = 0x6d
-	NL80211_CMD_MAX                                         = 0x98
+	NL80211_CMD_MAX                                         = 0x99
 	NL80211_CMD_MICHAEL_MIC_FAILURE                         = 0x29
 	NL80211_CMD_MODIFY_LINK_STA                             = 0x97
 	NL80211_CMD_NAN_MATCH                                   = 0x78
diff --git a/unix/ztypes_linux_386.go b/unix/ztypes_linux_386.go
index 4ecc149..6d8acbc 100644
--- a/unix/ztypes_linux_386.go
+++ b/unix/ztypes_linux_386.go
@@ -337,6 +337,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint32
diff --git a/unix/ztypes_linux_amd64.go b/unix/ztypes_linux_amd64.go
index 34fddff..59293c6 100644
--- a/unix/ztypes_linux_amd64.go
+++ b/unix/ztypes_linux_amd64.go
@@ -350,6 +350,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_arm.go b/unix/ztypes_linux_arm.go
index 3b14a60..40cfa38 100644
--- a/unix/ztypes_linux_arm.go
+++ b/unix/ztypes_linux_arm.go
@@ -328,6 +328,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint32
diff --git a/unix/ztypes_linux_arm64.go b/unix/ztypes_linux_arm64.go
index 0517651..055bc42 100644
--- a/unix/ztypes_linux_arm64.go
+++ b/unix/ztypes_linux_arm64.go
@@ -329,6 +329,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_loong64.go b/unix/ztypes_linux_loong64.go
index 3b0c518..f28affb 100644
--- a/unix/ztypes_linux_loong64.go
+++ b/unix/ztypes_linux_loong64.go
@@ -330,6 +330,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_mips.go b/unix/ztypes_linux_mips.go
index fccdf4d..9d71e7c 100644
--- a/unix/ztypes_linux_mips.go
+++ b/unix/ztypes_linux_mips.go
@@ -333,6 +333,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint32
diff --git a/unix/ztypes_linux_mips64.go b/unix/ztypes_linux_mips64.go
index 500de8f..fd5ccd3 100644
--- a/unix/ztypes_linux_mips64.go
+++ b/unix/ztypes_linux_mips64.go
@@ -332,6 +332,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_mips64le.go b/unix/ztypes_linux_mips64le.go
index d0434cd..7704de7 100644
--- a/unix/ztypes_linux_mips64le.go
+++ b/unix/ztypes_linux_mips64le.go
@@ -332,6 +332,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_mipsle.go b/unix/ztypes_linux_mipsle.go
index 84206ba..df00b87 100644
--- a/unix/ztypes_linux_mipsle.go
+++ b/unix/ztypes_linux_mipsle.go
@@ -333,6 +333,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint32
diff --git a/unix/ztypes_linux_ppc.go b/unix/ztypes_linux_ppc.go
index ab078cf..0942840 100644
--- a/unix/ztypes_linux_ppc.go
+++ b/unix/ztypes_linux_ppc.go
@@ -340,6 +340,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint32
diff --git a/unix/ztypes_linux_ppc64.go b/unix/ztypes_linux_ppc64.go
index 42eb2c4..0348743 100644
--- a/unix/ztypes_linux_ppc64.go
+++ b/unix/ztypes_linux_ppc64.go
@@ -339,6 +339,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_ppc64le.go b/unix/ztypes_linux_ppc64le.go
index 31304a4..bad0670 100644
--- a/unix/ztypes_linux_ppc64le.go
+++ b/unix/ztypes_linux_ppc64le.go
@@ -339,6 +339,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_riscv64.go b/unix/ztypes_linux_riscv64.go
index c311f96..9ea54b7 100644
--- a/unix/ztypes_linux_riscv64.go
+++ b/unix/ztypes_linux_riscv64.go
@@ -357,6 +357,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_s390x.go b/unix/ztypes_linux_s390x.go
index bba3cef..aa268d0 100644
--- a/unix/ztypes_linux_s390x.go
+++ b/unix/ztypes_linux_s390x.go
@@ -352,6 +352,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64
diff --git a/unix/ztypes_linux_sparc64.go b/unix/ztypes_linux_sparc64.go
index ad8a013..444045b 100644
--- a/unix/ztypes_linux_sparc64.go
+++ b/unix/ztypes_linux_sparc64.go
@@ -334,6 +334,8 @@
 	Ac_exe_inode              uint64
 	Wpcopy_count              uint64
 	Wpcopy_delay_total        uint64
+	Irq_count                 uint64
+	Irq_delay_total           uint64
 }
 
 type cpuMask uint64