diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 9c1674973e03..26ad1422a157 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -408,11 +408,14 @@ enum bpf_type_flag {
 	/* Size is known at compile time. */
 	MEM_FIXED_SIZE		= BIT(10 + BPF_BASE_TYPE_BITS),
 
+	/* DYNPTR points to sk_buff */
+	DYNPTR_TYPE_SKB		= BIT(11 + BPF_BASE_TYPE_BITS),
+
 	__BPF_TYPE_FLAG_MAX,
 	__BPF_TYPE_LAST_FLAG	= __BPF_TYPE_FLAG_MAX - 1,
 };
 
-#define DYNPTR_TYPE_FLAG_MASK	(DYNPTR_TYPE_LOCAL | DYNPTR_TYPE_RINGBUF)
+#define DYNPTR_TYPE_FLAG_MASK	(DYNPTR_TYPE_LOCAL | DYNPTR_TYPE_RINGBUF | DYNPTR_TYPE_SKB)
 
 /* Max number of base types. */
 #define BPF_BASE_TYPE_LIMIT	(1UL << BPF_BASE_TYPE_BITS)
@@ -904,6 +907,36 @@ static __always_inline __nocfi unsigned int bpf_dispatcher_nop_func(
 	return bpf_func(ctx, insnsi);
 }
 
+/* the implementation of the opaque uapi struct bpf_dynptr */
+struct bpf_dynptr_kern {
+	void *data;
+	/* Size represents the number of usable bytes of dynptr data.
+	 * If for example the offset is at 4 for a local dynptr whose data is
+	 * of type u64, the number of usable bytes is 4.
+	 *
+	 * The upper 8 bits are reserved. It is as follows:
+	 * Bits 0 - 23 = size
+	 * Bits 24 - 30 = dynptr type
+	 * Bit 31 = whether dynptr is read-only
+	 */
+	u32 size;
+	u32 offset;
+} __aligned(8);
+
+enum bpf_dynptr_type {
+	BPF_DYNPTR_TYPE_INVALID,
+	/* Points to memory that is local to the bpf program */
+	BPF_DYNPTR_TYPE_LOCAL,
+	/* Underlying data is a ringbuf record */
+	BPF_DYNPTR_TYPE_RINGBUF,
+	/* Underlying data is a sk_buff */
+	BPF_DYNPTR_TYPE_SKB,
+	/* Underlying data is a xdp_buff */
+	BPF_DYNPTR_TYPE_XDP,
+};
+
+int bpf_dynptr_check_size(u32 size);
+
 #ifdef CONFIG_BPF_JIT
 int bpf_trampoline_link_prog(struct bpf_tramp_link *link, struct bpf_trampoline *tr);
 int bpf_trampoline_unlink_prog(struct bpf_tramp_link *link, struct bpf_trampoline *tr);
@@ -1983,6 +2016,11 @@ static inline bool has_current_bpf_ctx(void)
 {
 	return !!current->bpf_ctx;
 }
+
+void bpf_dynptr_init(struct bpf_dynptr_kern *ptr, void *data,
+		     enum bpf_dynptr_type type, u32 offset, u32 size);
+void bpf_dynptr_set_null(struct bpf_dynptr_kern *ptr);
+void bpf_dynptr_set_rdonly(struct bpf_dynptr_kern *ptr);
 #else /* !CONFIG_BPF_SYSCALL */
 static inline struct bpf_prog *bpf_prog_get(u32 ufd)
 {
@@ -2196,6 +2234,19 @@ static inline bool has_current_bpf_ctx(void)
 {
 	return false;
 }
+
+static inline void bpf_dynptr_init(struct bpf_dynptr_kern *ptr, void *data,
+				   enum bpf_dynptr_type type, u32 offset, u32 size)
+{
+}
+
+static inline void bpf_dynptr_set_null(struct bpf_dynptr_kern *ptr)
+{
+}
+
+static inline void bpf_dynptr_set_rdonly(struct bpf_dynptr_kern *ptr)
+{
+}
 #endif /* CONFIG_BPF_SYSCALL */
 
 void __bpf_free_used_btfs(struct bpf_prog_aux *aux,
@@ -2557,35 +2608,6 @@ int bpf_bprintf_prepare(char *fmt, u32 fmt_size, const u64 *raw_args,
 			u32 **bin_buf, u32 num_args);
 void bpf_bprintf_cleanup(void);
 
-/* the implementation of the opaque uapi struct bpf_dynptr */
-struct bpf_dynptr_kern {
-	void *data;
-	/* Size represents the number of usable bytes of dynptr data.
-	 * If for example the offset is at 4 for a local dynptr whose data is
-	 * of type u64, the number of usable bytes is 4.
-	 *
-	 * The upper 8 bits are reserved. It is as follows:
-	 * Bits 0 - 23 = size
-	 * Bits 24 - 30 = dynptr type
-	 * Bit 31 = whether dynptr is read-only
-	 */
-	u32 size;
-	u32 offset;
-} __aligned(8);
-
-enum bpf_dynptr_type {
-	BPF_DYNPTR_TYPE_INVALID,
-	/* Points to memory that is local to the bpf program */
-	BPF_DYNPTR_TYPE_LOCAL,
-	/* Underlying data is a ringbuf record */
-	BPF_DYNPTR_TYPE_RINGBUF,
-};
-
-void bpf_dynptr_init(struct bpf_dynptr_kern *ptr, void *data,
-		     enum bpf_dynptr_type type, u32 offset, u32 size);
-void bpf_dynptr_set_null(struct bpf_dynptr_kern *ptr);
-int bpf_dynptr_check_size(u32 size);
-
 #ifdef CONFIG_BPF_LSM
 void bpf_cgroup_atype_get(u32 attach_btf_id, int cgroup_atype);
 void bpf_cgroup_atype_put(int cgroup_atype);
diff --git a/include/linux/filter.h b/include/linux/filter.h
index a5f21dc3c432..caa11c996309 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -1532,4 +1532,22 @@ static __always_inline int __bpf_xdp_redirect_map(struct bpf_map *map, u32 ifind
 	return XDP_REDIRECT;
 }
 
+#ifdef CONFIG_NET
+int __bpf_skb_load_bytes(const struct sk_buff *skb, u32 offset, void *to, u32 len);
+int __bpf_skb_store_bytes(struct sk_buff *skb, u32 offset, const void *from,
+			  u32 len, u64 flags);
+#else /* CONFIG_NET */
+static inline int __bpf_skb_load_bytes(const struct sk_buff *skb, u32 offset,
+				       void *to, u32 len)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int __bpf_skb_store_bytes(struct sk_buff *skb, u32 offset,
+					const void *from, u32 len, u64 flags)
+{
+	return -EOPNOTSUPP;
+}
+#endif /* CONFIG_NET */
+
 #endif /* __LINUX_FILTER_H__ */
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 962960a98835..b4e5f7d81a20 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -5284,22 +5284,44 @@ union bpf_attr {
  *	Description
  *		Write *len* bytes from *src* into *dst*, starting from *offset*
  *		into *dst*.
- *		*flags* is currently unused.
+ *
+ *		*flags* must be 0 except for skb-type dynptrs.
+ *
+ *		For skb-type dynptrs:
+ *		    *  All data slices of the dynptr are automatically
+ *		       invalidated after **bpf_dynptr_write**\ (). If you wish to
+ *		       avoid this, please perform the write using direct data slices
+ *		       instead.
+ *
+ *		    *  For *flags*, please see the flags accepted by
+ *		       **bpf_skb_store_bytes**\ ().
  *	Return
  *		0 on success, -E2BIG if *offset* + *len* exceeds the length
  *		of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst*
- *		is a read-only dynptr or if *flags* is not 0.
+ *		is a read-only dynptr or if *flags* is not correct. For skb-type dynptrs,
+ *		other errors correspond to errors returned by **bpf_skb_store_bytes**\ ().
  *
  * void *bpf_dynptr_data(struct bpf_dynptr *ptr, u32 offset, u32 len)
  *	Description
  *		Get a pointer to the underlying dynptr data.
  *
  *		*len* must be a statically known value. The returned data slice
- *		is invalidated whenever the dynptr is invalidated.
+ *		is invalidated whenever the dynptr is invalidated. If the dynptr
+ *		is read-only, this will return NULL.
+ *
+ *		For skb-type dynptrs:
+ *		    * If *offset* + *len* extends into the skb's paged buffers,
+ *		      the user should manually pull the skb with **bpf_skb_pull_data**\ ()
+ *		      and try again.
+ *
+ *		    * The data slice is automatically invalidated anytime
+ *		      **bpf_dynptr_write**\ () or a helper call that changes
+ *		      the underlying packet buffer (eg **bpf_skb_pull_data**\ ())
+ *		      is called.
  *	Return
  *		Pointer to the underlying dynptr data, NULL if the dynptr is
  *		read-only, if the dynptr is invalid, or if the offset and length
- *		is out of bounds.
+ *		is out of bounds or in a paged buffer for skb-type dynptrs.
  *
  * s64 bpf_tcp_raw_gen_syncookie_ipv4(struct iphdr *iph, struct tcphdr *th, u32 th_len)
  *	Description
@@ -5386,6 +5408,18 @@ union bpf_attr {
  *	Return
  *		Current *ktime*.
  *
+ * long bpf_dynptr_from_skb(struct sk_buff *skb, u64 flags, struct bpf_dynptr *ptr)
+ *	Description
+ *		Get a dynptr to the data in *skb*. *skb* must be the BPF program
+ *		context. Depending on program type, the dynptr may be read-only.
+ *
+ *		Calls that change the *skb*'s underlying packet buffer
+ *		(eg **bpf_skb_pull_data**\ ()) do not invalidate the dynptr, but
+ *		they do invalidate any data slices associated with the dynptr.
+ *
+ *		*flags* is currently unused, it must be 0 for now.
+ *	Return
+ *		0 on success or -EINVAL if flags is not 0.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -5597,6 +5631,7 @@ union bpf_attr {
 	FN(tcp_raw_check_syncookie_ipv4),	\
 	FN(tcp_raw_check_syncookie_ipv6),	\
 	FN(ktime_get_tai_ns),		\
+	FN(dynptr_from_skb),		\
 	/* */
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index fc08035f14ed..98fcb4704a9e 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1403,11 +1403,21 @@ static bool bpf_dynptr_is_rdonly(struct bpf_dynptr_kern *ptr)
 	return ptr->size & DYNPTR_RDONLY_BIT;
 }
 
+void bpf_dynptr_set_rdonly(struct bpf_dynptr_kern *ptr)
+{
+	ptr->size |= DYNPTR_RDONLY_BIT;
+}
+
 static void bpf_dynptr_set_type(struct bpf_dynptr_kern *ptr, enum bpf_dynptr_type type)
 {
 	ptr->size |= type << DYNPTR_TYPE_SHIFT;
 }
 
+static enum bpf_dynptr_type bpf_dynptr_get_type(const struct bpf_dynptr_kern *ptr)
+{
+	return (ptr->size & ~(DYNPTR_RDONLY_BIT)) >> DYNPTR_TYPE_SHIFT;
+}
+
 static u32 bpf_dynptr_get_size(struct bpf_dynptr_kern *ptr)
 {
 	return ptr->size & DYNPTR_SIZE_MASK;
@@ -1478,6 +1488,7 @@ static const struct bpf_func_proto bpf_dynptr_from_mem_proto = {
 BPF_CALL_5(bpf_dynptr_read, void *, dst, u32, len, struct bpf_dynptr_kern *, src,
 	   u32, offset, u64, flags)
 {
+	enum bpf_dynptr_type type;
 	int err;
 
 	if (!src->data || flags)
@@ -1487,9 +1498,19 @@ BPF_CALL_5(bpf_dynptr_read, void *, dst, u32, len, struct bpf_dynptr_kern *, src
 	if (err)
 		return err;
 
-	memcpy(dst, src->data + src->offset + offset, len);
+	type = bpf_dynptr_get_type(src);
 
-	return 0;
+	switch (type) {
+	case BPF_DYNPTR_TYPE_LOCAL:
+	case BPF_DYNPTR_TYPE_RINGBUF:
+		memcpy(dst, src->data + src->offset + offset, len);
+		return 0;
+	case BPF_DYNPTR_TYPE_SKB:
+		return __bpf_skb_load_bytes(src->data, src->offset + offset, dst, len);
+	default:
+		WARN_ONCE(true, "bpf_dynptr_read: unknown dynptr type %d\n", type);
+		return -EFAULT;
+	}
 }
 
 static const struct bpf_func_proto bpf_dynptr_read_proto = {
@@ -1506,18 +1527,32 @@ static const struct bpf_func_proto bpf_dynptr_read_proto = {
 BPF_CALL_5(bpf_dynptr_write, struct bpf_dynptr_kern *, dst, u32, offset, void *, src,
 	   u32, len, u64, flags)
 {
+	enum bpf_dynptr_type type;
 	int err;
 
-	if (!dst->data || flags || bpf_dynptr_is_rdonly(dst))
+	if (!dst->data || bpf_dynptr_is_rdonly(dst))
 		return -EINVAL;
 
 	err = bpf_dynptr_check_off_len(dst, offset, len);
 	if (err)
 		return err;
 
-	memcpy(dst->data + dst->offset + offset, src, len);
+	type = bpf_dynptr_get_type(dst);
 
-	return 0;
+	switch (type) {
+	case BPF_DYNPTR_TYPE_LOCAL:
+	case BPF_DYNPTR_TYPE_RINGBUF:
+		if (flags)
+			return -EINVAL;
+		memcpy(dst->data + dst->offset + offset, src, len);
+		return 0;
+	case BPF_DYNPTR_TYPE_SKB:
+		return __bpf_skb_store_bytes(dst->data, dst->offset + offset, src, len,
+					     flags);
+	default:
+		WARN_ONCE(true, "bpf_dynptr_write: unknown dynptr type %d\n", type);
+		return -EFAULT;
+	}
 }
 
 static const struct bpf_func_proto bpf_dynptr_write_proto = {
@@ -1533,6 +1568,8 @@ static const struct bpf_func_proto bpf_dynptr_write_proto = {
 
 BPF_CALL_3(bpf_dynptr_data, struct bpf_dynptr_kern *, ptr, u32, offset, u32, len)
 {
+	enum bpf_dynptr_type type;
+	void *data;
 	int err;
 
 	if (!ptr->data)
@@ -1545,7 +1582,29 @@ BPF_CALL_3(bpf_dynptr_data, struct bpf_dynptr_kern *, ptr, u32, offset, u32, len
 	if (bpf_dynptr_is_rdonly(ptr))
 		return 0;
 
-	return (unsigned long)(ptr->data + ptr->offset + offset);
+	type = bpf_dynptr_get_type(ptr);
+
+	switch (type) {
+	case BPF_DYNPTR_TYPE_LOCAL:
+	case BPF_DYNPTR_TYPE_RINGBUF:
+		data = ptr->data;
+		break;
+	case BPF_DYNPTR_TYPE_SKB:
+	{
+		struct sk_buff *skb = ptr->data;
+
+		/* if the data is paged, the caller needs to pull it first */
+		if (ptr->offset + offset + len > skb->len - skb->data_len)
+			return 0;
+
+		data = skb->data;
+		break;
+	}
+	default:
+		WARN_ONCE(true, "bpf_dynptr_data: unknown dynptr type %d\n", type);
+		return 0;
+	}
+	return (unsigned long)(data + ptr->offset + offset);
 }
 
 static const struct bpf_func_proto bpf_dynptr_data_proto = {
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 0194a36d0b36..7f67fac66735 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -684,6 +684,8 @@ static enum bpf_dynptr_type arg_to_dynptr_type(enum bpf_arg_type arg_type)
 		return BPF_DYNPTR_TYPE_LOCAL;
 	case DYNPTR_TYPE_RINGBUF:
 		return BPF_DYNPTR_TYPE_RINGBUF;
+	case DYNPTR_TYPE_SKB:
+		return BPF_DYNPTR_TYPE_SKB;
 	default:
 		return BPF_DYNPTR_TYPE_INVALID;
 	}
@@ -1406,6 +1408,12 @@ static bool reg_is_pkt_pointer_any(const struct bpf_reg_state *reg)
 	       reg->type == PTR_TO_PACKET_END;
 }
 
+static bool reg_is_dynptr_slice_pkt(const struct bpf_reg_state *reg)
+{
+	return base_type(reg->type) == PTR_TO_MEM &&
+		reg->type & DYNPTR_TYPE_SKB;
+}
+
 /* Unmodified PTR_TO_PACKET[_META,_END] register from ctx access. */
 static bool reg_is_init_pkt_pointer(const struct bpf_reg_state *reg,
 				    enum bpf_reg_type which)
@@ -5830,12 +5838,29 @@ int check_func_arg_reg_off(struct bpf_verifier_env *env,
 	return __check_ptr_off_reg(env, reg, regno, fixed_off_ok);
 }
 
-static u32 stack_slot_get_id(struct bpf_verifier_env *env, struct bpf_reg_state *reg)
+static struct bpf_reg_state *get_dynptr_arg_reg(const struct bpf_func_proto *fn,
+						struct bpf_reg_state *regs)
+{
+	int i;
+
+	for (i = 0; i < MAX_BPF_FUNC_REG_ARGS; i++)
+		if (arg_type_is_dynptr(fn->arg_type[i]))
+			return &regs[BPF_REG_1 + i];
+
+	return NULL;
+}
+
+static enum bpf_dynptr_type stack_slot_get_dynptr_info(struct bpf_verifier_env *env,
+						       struct bpf_reg_state *reg,
+						       int *ref_obj_id)
 {
 	struct bpf_func_state *state = func(env, reg);
 	int spi = get_spi(reg->off);
 
-	return state->stack[spi].spilled_ptr.id;
+	if (ref_obj_id)
+		*ref_obj_id = state->stack[spi].spilled_ptr.id;
+
+	return state->stack[spi].spilled_ptr.dynptr.type;
 }
 
 static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
@@ -6060,6 +6085,9 @@ static int check_func_arg(struct bpf_verifier_env *env, u32 arg,
 			case DYNPTR_TYPE_RINGBUF:
 				err_extra = "ringbuf ";
 				break;
+			case DYNPTR_TYPE_SKB:
+				err_extra = "skb ";
+				break;
 			default:
 				break;
 			}
@@ -6490,6 +6518,9 @@ static int check_func_proto(const struct bpf_func_proto *fn, int func_id)
 
 /* Packet data might have moved, any old PTR_TO_PACKET[_META,_END]
  * are now invalid, so turn them into unknown SCALAR_VALUE.
+ *
+ * This applies to dynptr slices belonging to skb dynptrs,
+ * since these slices point to packet data.
  */
 static void __clear_all_pkt_pointers(struct bpf_verifier_env *env,
 				     struct bpf_func_state *state)
@@ -6498,13 +6529,15 @@ static void __clear_all_pkt_pointers(struct bpf_verifier_env *env,
 	int i;
 
 	for (i = 0; i < MAX_BPF_REG; i++)
-		if (reg_is_pkt_pointer_any(&regs[i]))
+		if (reg_is_pkt_pointer_any(&regs[i]) ||
+		    reg_is_dynptr_slice_pkt(&regs[i]))
 			mark_reg_unknown(env, regs, i);
 
 	bpf_for_each_spilled_reg(i, state, reg) {
 		if (!reg)
 			continue;
-		if (reg_is_pkt_pointer_any(reg))
+		if (reg_is_pkt_pointer_any(reg) ||
+		    reg_is_dynptr_slice_pkt(&regs[i]))
 			__mark_reg_unknown(env, reg);
 	}
 }
@@ -7166,6 +7199,7 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 			     int *insn_idx_p)
 {
 	enum bpf_prog_type prog_type = resolve_prog_type(env->prog);
+	enum bpf_dynptr_type dynptr_type = BPF_DYNPTR_TYPE_INVALID;
 	const struct bpf_func_proto *fn = NULL;
 	enum bpf_return_type ret_type;
 	enum bpf_type_flag ret_flag;
@@ -7339,23 +7373,42 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 		}
 		break;
 	case BPF_FUNC_dynptr_data:
-		for (i = 0; i < MAX_BPF_FUNC_REG_ARGS; i++) {
-			if (arg_type_is_dynptr(fn->arg_type[i])) {
-				if (meta.ref_obj_id) {
-					verbose(env, "verifier internal error: meta.ref_obj_id already set\n");
-					return -EFAULT;
-				}
-				/* Find the id of the dynptr we're tracking the reference of */
-				meta.ref_obj_id = stack_slot_get_id(env, &regs[BPF_REG_1 + i]);
-				break;
-			}
-		}
-		if (i == MAX_BPF_FUNC_REG_ARGS) {
+	{
+		struct bpf_reg_state *reg;
+
+		reg = get_dynptr_arg_reg(fn, regs);
+		if (!reg) {
 			verbose(env, "verifier internal error: no dynptr in bpf_dynptr_data()\n");
 			return -EFAULT;
 		}
+
+		if (meta.ref_obj_id) {
+			verbose(env, "verifier internal error: meta.ref_obj_id already set\n");
+			return -EFAULT;
+		}
+
+		dynptr_type = stack_slot_get_dynptr_info(env, reg, &meta.ref_obj_id);
 		break;
 	}
+	case BPF_FUNC_dynptr_write:
+	{
+		struct bpf_reg_state *reg;
+
+		reg = get_dynptr_arg_reg(fn, regs);
+		if (!reg) {
+			verbose(env, "verifier internal error: no dynptr in bpf_dynptr_write()\n");
+			return -EFAULT;
+		}
+
+		/* bpf_dynptr_write() for skb-type dynptrs may pull the skb, so we must
+		 * invalidate all data slices associated with it
+		 */
+		if (stack_slot_get_dynptr_info(env, reg, NULL) == BPF_DYNPTR_TYPE_SKB)
+			changes_data = true;
+
+		break;
+	}
+	}
 
 	if (err)
 		return err;
@@ -7417,6 +7470,9 @@ static int check_helper_call(struct bpf_verifier_env *env, struct bpf_insn *insn
 		mark_reg_known_zero(env, regs, BPF_REG_0);
 		regs[BPF_REG_0].type = PTR_TO_MEM | ret_flag;
 		regs[BPF_REG_0].mem_size = meta.mem_size;
+		if (func_id == BPF_FUNC_dynptr_data &&
+		    dynptr_type == BPF_DYNPTR_TYPE_SKB)
+			regs[BPF_REG_0].type |= DYNPTR_TYPE_SKB;
 		break;
 	case RET_PTR_TO_MEM_OR_BTF_ID:
 	{
diff --git a/net/core/filter.c b/net/core/filter.c
index 63e25d8ce501..0e2238516d8b 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1681,8 +1681,8 @@ static inline void bpf_pull_mac_rcsum(struct sk_buff *skb)
 		skb_postpull_rcsum(skb, skb_mac_header(skb), skb->mac_len);
 }
 
-BPF_CALL_5(bpf_skb_store_bytes, struct sk_buff *, skb, u32, offset,
-	   const void *, from, u32, len, u64, flags)
+int __bpf_skb_store_bytes(struct sk_buff *skb, u32 offset, const void *from,
+			  u32 len, u64 flags)
 {
 	void *ptr;
 
@@ -1707,6 +1707,12 @@ BPF_CALL_5(bpf_skb_store_bytes, struct sk_buff *, skb, u32, offset,
 	return 0;
 }
 
+BPF_CALL_5(bpf_skb_store_bytes, struct sk_buff *, skb, u32, offset,
+	   const void *, from, u32, len, u64, flags)
+{
+	return __bpf_skb_store_bytes(skb, offset, from, len, flags);
+}
+
 static const struct bpf_func_proto bpf_skb_store_bytes_proto = {
 	.func		= bpf_skb_store_bytes,
 	.gpl_only	= false,
@@ -1718,8 +1724,7 @@ static const struct bpf_func_proto bpf_skb_store_bytes_proto = {
 	.arg5_type	= ARG_ANYTHING,
 };
 
-BPF_CALL_4(bpf_skb_load_bytes, const struct sk_buff *, skb, u32, offset,
-	   void *, to, u32, len)
+int __bpf_skb_load_bytes(const struct sk_buff *skb, u32 offset, void *to, u32 len)
 {
 	void *ptr;
 
@@ -1738,6 +1743,12 @@ BPF_CALL_4(bpf_skb_load_bytes, const struct sk_buff *, skb, u32, offset,
 	return -EFAULT;
 }
 
+BPF_CALL_4(bpf_skb_load_bytes, const struct sk_buff *, skb, u32, offset,
+	   void *, to, u32, len)
+{
+	return __bpf_skb_load_bytes(skb, offset, to, len);
+}
+
 static const struct bpf_func_proto bpf_skb_load_bytes_proto = {
 	.func		= bpf_skb_load_bytes,
 	.gpl_only	= false,
@@ -1849,6 +1860,51 @@ static const struct bpf_func_proto bpf_skb_pull_data_proto = {
 	.arg2_type	= ARG_ANYTHING,
 };
 
+BPF_CALL_3(bpf_dynptr_from_skb_rdwr, struct sk_buff *, skb, u64, flags,
+	   struct bpf_dynptr_kern *, ptr)
+{
+	if (flags) {
+		bpf_dynptr_set_null(ptr);
+		return -EINVAL;
+	}
+
+	bpf_dynptr_init(ptr, skb, BPF_DYNPTR_TYPE_SKB, 0, skb->len);
+
+	return 0;
+}
+
+static const struct bpf_func_proto bpf_dynptr_from_skb_rdwr_proto = {
+	.func		= bpf_dynptr_from_skb_rdwr,
+	.gpl_only	= false,
+	.ret_type	= RET_INTEGER,
+	.arg1_type	= ARG_PTR_TO_CTX,
+	.arg2_type	= ARG_ANYTHING,
+	.arg3_type	= ARG_PTR_TO_DYNPTR | DYNPTR_TYPE_SKB | MEM_UNINIT,
+};
+
+BPF_CALL_3(bpf_dynptr_from_skb_rdonly, struct sk_buff *, skb, u64, flags,
+	   struct bpf_dynptr_kern *, ptr)
+{
+	int err;
+
+	err = ____bpf_dynptr_from_skb_rdwr(skb, flags, ptr);
+	if (err)
+		return err;
+
+	bpf_dynptr_set_rdonly(ptr);
+
+	return 0;
+}
+
+static const struct bpf_func_proto bpf_dynptr_from_skb_rdonly_proto = {
+	.func		= bpf_dynptr_from_skb_rdonly,
+	.gpl_only	= false,
+	.ret_type	= RET_INTEGER,
+	.arg1_type	= ARG_PTR_TO_CTX,
+	.arg2_type	= ARG_ANYTHING,
+	.arg3_type	= ARG_PTR_TO_DYNPTR | DYNPTR_TYPE_SKB | MEM_UNINIT,
+};
+
 BPF_CALL_1(bpf_sk_fullsock, struct sock *, sk)
 {
 	return sk_fullsock(sk) ? (unsigned long)sk : (unsigned long)NULL;
@@ -7704,6 +7760,8 @@ sk_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 		return &bpf_get_socket_uid_proto;
 	case BPF_FUNC_perf_event_output:
 		return &bpf_skb_event_output_proto;
+	case BPF_FUNC_dynptr_from_skb:
+		return &bpf_dynptr_from_skb_rdonly_proto;
 	default:
 		return bpf_sk_base_func_proto(func_id);
 	}
@@ -7891,6 +7949,8 @@ tc_cls_act_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 		return &bpf_tcp_raw_check_syncookie_ipv6_proto;
 #endif
 #endif
+	case BPF_FUNC_dynptr_from_skb:
+		return &bpf_dynptr_from_skb_rdwr_proto;
 	default:
 		return bpf_sk_base_func_proto(func_id);
 	}
@@ -8090,6 +8150,8 @@ sk_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 	case BPF_FUNC_skc_lookup_tcp:
 		return &bpf_skc_lookup_tcp_proto;
 #endif
+	case BPF_FUNC_dynptr_from_skb:
+		return &bpf_dynptr_from_skb_rdwr_proto;
 	default:
 		return bpf_sk_base_func_proto(func_id);
 	}
@@ -8128,6 +8190,8 @@ lwt_out_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 		return &bpf_get_smp_processor_id_proto;
 	case BPF_FUNC_skb_under_cgroup:
 		return &bpf_skb_under_cgroup_proto;
+	case BPF_FUNC_dynptr_from_skb:
+		return &bpf_dynptr_from_skb_rdonly_proto;
 	default:
 		return bpf_sk_base_func_proto(func_id);
 	}
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index f4ba82a1eace..52e891b00a35 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -5284,22 +5284,44 @@ union bpf_attr {
  *	Description
  *		Write *len* bytes from *src* into *dst*, starting from *offset*
  *		into *dst*.
- *		*flags* is currently unused.
+ *
+ *		*flags* must be 0 except for skb-type dynptrs.
+ *
+ *		For skb-type dynptrs:
+ *		    *  All data slices of the dynptr are automatically
+ *		       invalidated after **bpf_dynptr_write**\ (). If you wish to
+ *		       avoid this, please perform the write using direct data slices
+ *		       instead.
+ *
+ *		    *  For *flags*, please see the flags accepted by
+ *		       **bpf_skb_store_bytes**\ ().
  *	Return
  *		0 on success, -E2BIG if *offset* + *len* exceeds the length
  *		of *dst*'s data, -EINVAL if *dst* is an invalid dynptr or if *dst*
- *		is a read-only dynptr or if *flags* is not 0.
+ *		is a read-only dynptr or if *flags* is not correct. For skb-type dynptrs,
+ *		other errors correspond to errors returned by **bpf_skb_store_bytes**\ ().
  *
  * void *bpf_dynptr_data(struct bpf_dynptr *ptr, u32 offset, u32 len)
  *	Description
  *		Get a pointer to the underlying dynptr data.
  *
  *		*len* must be a statically known value. The returned data slice
- *		is invalidated whenever the dynptr is invalidated.
+ *		is invalidated whenever the dynptr is invalidated. If the dynptr
+ *		is read-only, this will return NULL.
+ *
+ *		For skb-type dynptrs:
+ *		    * If *offset* + *len* extends into the skb's paged buffers,
+ *		      the user should manually pull the skb with **bpf_skb_pull_data**\ ()
+ *		      and try again.
+ *
+ *		    * The data slice is automatically invalidated anytime
+ *		      **bpf_dynptr_write**\ () or a helper call that changes
+ *		      the underlying packet buffer (eg **bpf_skb_pull_data**\ ())
+ *		      is called.
  *	Return
  *		Pointer to the underlying dynptr data, NULL if the dynptr is
  *		read-only, if the dynptr is invalid, or if the offset and length
- *		is out of bounds.
+ *		is out of bounds or in a paged buffer for skb-type dynptrs.
  *
  * s64 bpf_tcp_raw_gen_syncookie_ipv4(struct iphdr *iph, struct tcphdr *th, u32 th_len)
  *	Description
@@ -5386,6 +5408,18 @@ union bpf_attr {
  *	Return
  *		Current *ktime*.
  *
+ * long bpf_dynptr_from_skb(struct sk_buff *skb, u64 flags, struct bpf_dynptr *ptr)
+ *	Description
+ *		Get a dynptr to the data in *skb*. *skb* must be the BPF program
+ *		context. Depending on program type, the dynptr may be read-only.
+ *
+ *		Calls that change the *skb*'s underlying packet buffer
+ *		(eg **bpf_skb_pull_data**\ ()) do not invalidate the dynptr, but
+ *		they do invalidate any data slices associated with the dynptr.
+ *
+ *		*flags* is currently unused, it must be 0 for now.
+ *	Return
+ *		0 on success or -EINVAL if flags is not 0.
  */
 #define __BPF_FUNC_MAPPER(FN)		\
 	FN(unspec),			\
@@ -5597,6 +5631,7 @@ union bpf_attr {
 	FN(tcp_raw_check_syncookie_ipv4),	\
 	FN(tcp_raw_check_syncookie_ipv6),	\
 	FN(ktime_get_tai_ns),		\
+	FN(dynptr_from_skb),		\
 	/* */
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
