Open Menu /

Defined in 1 files as a function:

Referenced in 7 files:

Smatch caller information:

drivers/net/netkit.c netkit_run() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-2147483648[c]
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->next->csum_offset 0-u16max
HOST_DATA 0 skb->next->data_len 0-u32max[c]
HOST_DATA 0 skb->next->len 1-u32max[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 0-u32max[c]
HOST_DATA 0 skb->prev->truesize 0-u32max
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->extensions
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->prev->data_len
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
LOCK2 rcu_read
HALF_LOCKED2 &dev->tx_global_lock
HALF_LOCKED2 &txq->_xmit_lock
HALF_LOCKED2 bh
HALF_LOCKED2 flags

net/sched/cls_bpf.c bpf_prog_run_data_pointers() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->cb 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
CAPPED_DATA 0 skb 1
DATA_SOURCE 0 skb $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-u32max[c]
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 1-u32max[c]
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->protocol 1-255
HOST_DATA 0 skb->truesize 0-u32max
HOST_DATA 0 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->next->end
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
UNITS 0 skb unit_byte
HALF_LOCKED2 rcu_read

net/core/filter.c ____bpf_lwt_seg6_action() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->data 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c ____bpf_lwt_seg6_adjust_srh() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c ____bpf_skb_adjust_room() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c ____bpf_skb_change_head() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 skb->len

net/core/filter.c ____bpf_skb_change_proto() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c ____bpf_skb_change_tail() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c ____bpf_skb_vlan_pop() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c ____bpf_skb_vlan_push() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c bpf_push_seg6_encap() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/filter.c bpf_try_make_writable() -> bpf_compute_data_pointers()

Type Parameter Key Value
BUF_SIZE 0 skb (-1),1-s32max
BUF_SIZE 0 skb (-1),1-s32max
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/lwt_bpf.c bpf_lwt_push_ip_encap() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->head 1-u64max
CAPPED_DATA 0 skb->head 1
DATA_SOURCE 0 skb $0
NOCHECK_CALL

net/core/lwt_bpf.c run_lwt_bpf() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $0
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum 0-192512[c]
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-u32max[c]
HOST_DATA 0 skb->inner_protocol 1-255
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 0-u32max[c]
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->protocol 1-255
HOST_DATA 0 skb->truesize 0-u32max
HOST_DATA 0 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->proto_down
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->extensions
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->next->data_len
NO_OVERFLOW_SIMPLE 0 skb->next->end
NO_OVERFLOW_SIMPLE 0 skb->next->len
NO_OVERFLOW_SIMPLE 0 skb->next->tail
NO_OVERFLOW_SIMPLE 0 skb->next->truesize
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
LOCK2 bh
LOCK2 rcu_read

net/ipv6/seg6_local.c input_action_end_bpf() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
CAPPED_DATA 0 skb->dev->ip6_ptr 1
CAPPED_DATA 0 skb->dev->nd_net.net 1
DATA_SOURCE 0 skb $0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum 0-192512[c]
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->next->prev->csum_offset 0-u16max
HOST_DATA 0 skb->next->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->next->prev->len 1-u32max[c]
HOST_DATA 0 skb->next->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 0-u32max[c]
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->protocol 1-255
HOST_DATA 0 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->proto_down
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->next->end
NO_OVERFLOW_SIMPLE 0 skb->next->len
NO_OVERFLOW_SIMPLE 0 skb->next->tail
NO_OVERFLOW_SIMPLE 0 skb->next->truesize
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
LOCK2 rcu_read
HALF_LOCKED2 bh

net/sched/act_bpf.c bpf_prog_run_data_pointers() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->cb 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
DATA_SOURCE 0 skb $1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-u32max[c]
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 1-u32max[c]
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->truesize 0-u32max
HOST_DATA 0 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
UNITS 0 skb unit_byte

net/core/dev.c tcx_run() -> bpf_compute_data_pointers()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
CAPPED_DATA 0 skb 1
DATA_SOURCE 0 skb $1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 skb->csum 0-192512[c]
HOST_DATA 0 skb->csum_offset 0-u16max
HOST_DATA 0 skb->data_len 0-u32max[c]
HOST_DATA 0 skb->inner_protocol 1-255
HOST_DATA 0 skb->len 0-u32max[c]
HOST_DATA 0 skb->next->csum_offset 0-u16max
HOST_DATA 0 skb->next->data_len 0-u32max[c]
HOST_DATA 0 skb->next->len 1-u32max[c]
HOST_DATA 0 skb->prev->csum_offset 0-u16max
HOST_DATA 0 skb->prev->data_len 0-u32max[c]
HOST_DATA 0 skb->prev->len 0-u32max[c]
HOST_DATA 0 skb->prev->truesize 0-u32max
HOST_DATA 0 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->prev->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 skb->protocol 1-255
HOST_DATA 0 skb->truesize 0-u32max
HOST_DATA 0 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *skb->data 0-255
NO_OVERFLOW_SIMPLE 0 skb->data_len
NO_OVERFLOW_SIMPLE 0 skb->dev->group
NO_OVERFLOW_SIMPLE 0 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 0 skb->dev->proto_down
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 skb->end
NO_OVERFLOW_SIMPLE 0 skb->len
NO_OVERFLOW_SIMPLE 0 skb->next->end
NO_OVERFLOW_SIMPLE 0 skb->next->len
NO_OVERFLOW_SIMPLE 0 skb->next->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->data_len
NO_OVERFLOW_SIMPLE 0 skb->prev->end
NO_OVERFLOW_SIMPLE 0 skb->prev->len
NO_OVERFLOW_SIMPLE 0 skb->prev->tail
NO_OVERFLOW_SIMPLE 0 skb->prev->truesize
NO_OVERFLOW_SIMPLE 0 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 skb->tail
NO_OVERFLOW_SIMPLE 0 skb->truesize
UNITS 0 skb unit_byte
LOCK2 rcu_read
HALF_LOCKED2 bh