diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a31fed691..502a12026 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ on:
 
 env:
   TMPDIR: /tmp
-  CI_MAX_KERNEL_VERSION: '6.7'
+  CI_MAX_KERNEL_VERSION: '6.8'
   CI_MIN_CLANG_VERSION: '11'
   go_version: '~1.22'
   prev_go_version: '~1.21'
@@ -173,7 +173,7 @@ jobs:
     timeout-minutes: 15
     strategy:
       matrix:
-        version: ["6.7", "6.1", "5.15", "5.10", "5.4", "4.19", "4.14", "4.9"]
+        version: ["6.8", "6.6", "6.1", "5.15", "5.10", "5.4", "4.19", "4.14", "4.9"]
     env:
       KERNEL_VERSION: "${{ matrix.version }}"
     steps:
diff --git a/Makefile b/Makefile
index c55a93d9c..d355eea71 100644
--- a/Makefile
+++ b/Makefile
@@ -106,7 +106,7 @@ testdata/loader-%-eb.elf: testdata/loader.c
 	$(STRIP) -g $@
 
 .PHONY: update-kernel-deps
-update-kernel-deps: export KERNEL_VERSION?=6.7
+update-kernel-deps: export KERNEL_VERSION?=6.8
 update-kernel-deps:
 	./testdata/sh/update-kernel-deps.sh
 	$(MAKE) container-all
diff --git a/btf/testdata/btf_testmod.btf b/btf/testdata/btf_testmod.btf
index 248488602..eabbc2998 100644
Binary files a/btf/testdata/btf_testmod.btf and b/btf/testdata/btf_testmod.btf differ
diff --git a/btf/testdata/vmlinux.btf.gz b/btf/testdata/vmlinux.btf.gz
index a5ce65038..055ad98b6 100644
Binary files a/btf/testdata/vmlinux.btf.gz and b/btf/testdata/vmlinux.btf.gz differ
diff --git a/features/prog.go b/features/prog.go
index a11363796..dc13b86d3 100644
--- a/features/prog.go
+++ b/features/prog.go
@@ -125,6 +125,9 @@ var haveProgramTypeMatrix = internal.FeatureMatrix[ebpf.ProgramType]{
 				Name: "a",
 				Type: &btf.FuncProto{
 					Return: &btf.Int{},
+					Params: []btf.FuncParam{
+						{Name: "ctx", Type: &btf.Pointer{Target: &btf.Struct{Name: "xdp_md"}}},
+					},
 				},
 				Linkage: btf.GlobalFunc,
 			}
diff --git a/internal/sys/types.go b/internal/sys/types.go
index d2ae94266..70e754de7 100644
--- a/internal/sys/types.go
+++ b/internal/sys/types.go
@@ -359,7 +359,7 @@ const (
 	BPF_LINK_TYPE_TCX            LinkType = 11
 	BPF_LINK_TYPE_UPROBE_MULTI   LinkType = 12
 	BPF_LINK_TYPE_NETKIT         LinkType = 13
-	MAX_BPF_LINK_TYPE            LinkType = 14
+	__MAX_BPF_LINK_TYPE          LinkType = 14
 )
 
 type MapType uint32
@@ -528,7 +528,7 @@ type LinkInfo struct {
 	Id     LinkID
 	ProgId uint32
 	_      [4]byte
-	Extra  [40]uint8
+	Extra  [48]uint8
 }
 
 type MapInfo struct {
@@ -1263,7 +1263,7 @@ type CgroupLinkInfo struct {
 	_          [4]byte
 	CgroupId   uint64
 	AttachType AttachType
-	_          [28]byte
+	_          [36]byte
 }
 
 type IterLinkInfo struct {
@@ -1287,6 +1287,7 @@ type KprobeLinkInfo struct {
 	Offset        uint32
 	Addr          uint64
 	Missed        uint64
+	_             [8]byte
 }
 
 type KprobeMultiLinkInfo struct {
@@ -1298,7 +1299,7 @@ type KprobeMultiLinkInfo struct {
 	Count  uint32
 	Flags  uint32
 	Missed uint64
-	_      [16]byte
+	_      [24]byte
 }
 
 type NetNsLinkInfo struct {
@@ -1308,7 +1309,7 @@ type NetNsLinkInfo struct {
 	_          [4]byte
 	NetnsIno   uint32
 	AttachType AttachType
-	_          [32]byte
+	_          [40]byte
 }
 
 type NetfilterLinkInfo struct {
@@ -1320,7 +1321,7 @@ type NetfilterLinkInfo struct {
 	Hooknum  uint32
 	Priority int32
 	Flags    uint32
-	_        [24]byte
+	_        [32]byte
 }
 
 type NetkitLinkInfo struct {
@@ -1330,7 +1331,7 @@ type NetkitLinkInfo struct {
 	_          [4]byte
 	Ifindex    uint32
 	AttachType AttachType
-	_          [32]byte
+	_          [40]byte
 }
 
 type PerfEventLinkInfo struct {
@@ -1348,7 +1349,7 @@ type RawTracepointLinkInfo struct {
 	_         [4]byte
 	TpName    Pointer
 	TpNameLen uint32
-	_         [28]byte
+	_         [36]byte
 }
 
 type TcxLinkInfo struct {
@@ -1358,7 +1359,7 @@ type TcxLinkInfo struct {
 	_          [4]byte
 	Ifindex    uint32
 	AttachType AttachType
-	_          [32]byte
+	_          [40]byte
 }
 
 type TracingLinkInfo struct {
@@ -1369,7 +1370,7 @@ type TracingLinkInfo struct {
 	AttachType  AttachType
 	TargetObjId uint32
 	TargetBtfId TypeID
-	_           [28]byte
+	_           [36]byte
 }
 
 type XDPLinkInfo struct {
@@ -1378,5 +1379,5 @@ type XDPLinkInfo struct {
 	ProgId  uint32
 	_       [4]byte
 	Ifindex uint32
-	_       [36]byte
+	_       [44]byte
 }