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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 1 files:

Smatch caller information:

net/openvswitch/actions.c clone() -> clone_execute()

Type Parameter Key Value
PARAM_VALUE 1 skb 1-u64max
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 skb->dev->rtnl_link_ops->priv_size 0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE 2 key 1-u64max
PARAM_VALUE 2 *key->nsh.context 0-4294967295
PARAM_VALUE 3 recirc_id 0
PARAM_VALUE 4 actions 4096-ptr_max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 2 key (-1),472
BUF_SIZE 2 key (-1),472
CAPPED_DATA 1 skb 1
DATA_SOURCE 0 dp $0
DATA_SOURCE 1 skb $1
DATA_SOURCE 2 key $2
DATA_SOURCE 4 actions r nla_next
DATA_SOURCE 6 last $4
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 skb->csum 0-4294967041[c]
HOST_DATA 1 skb->csum_offset 0-u16max
HOST_DATA 1 skb->data_len 0-u32max[c]
HOST_DATA 1 skb->inner_protocol 1-255
HOST_DATA 1 skb->len 0-u32max[c]
HOST_DATA 1 skb->prev->csum_offset 0-u16max
HOST_DATA 1 skb->prev->data_len 0-u32max[c]
HOST_DATA 1 skb->prev->len 0-u32max[c]
HOST_DATA 1 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->protocol 1-255
HOST_DATA 1 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *skb->data 0-255
USER_DATA 2 key->eth.cvlan.tci 0-u16max
USER_DATA 2 key->eth.cvlan.tpid 0-u16max[u]
USER_DATA 2 key->eth.vlan.tci 0-u16max
USER_DATA 2 key->eth.vlan.tpid 0-u16max
USER_DATA 2 key->ip.proto 0-255
USER_DATA 2 key->ip.tos 0-255
USER_DATA 2 key->ip.ttl 0-255
USER_DATA 2 key->ipv4.addr.dst 0-u32max[c]
USER_DATA 2 key->ipv4.addr.src 0-u32max[c]
USER_DATA 2 key->tp.dst 0-u16max
USER_DATA 2 key->tp.src 0-u16max
USER_DATA 4 actions->nla_len 0-u16max
USER_DATA 4 actions->nla_type 0-u16max
USER_DATA 5 len (-65536)-u16max
USER_DATA 6 last 0-1
NO_OVERFLOW_SIMPLE 1 skb->data_len
NO_OVERFLOW_SIMPLE 1 skb->dev->group
NO_OVERFLOW_SIMPLE 1 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 skb->end
NO_OVERFLOW_SIMPLE 1 skb->extensions
NO_OVERFLOW_SIMPLE 1 skb->len
NO_OVERFLOW_SIMPLE 1 skb->prev->end
NO_OVERFLOW_SIMPLE 1 skb->prev->len
NO_OVERFLOW_SIMPLE 1 skb->prev->tail
NO_OVERFLOW_SIMPLE 1 skb->prev->truesize
NO_OVERFLOW_SIMPLE 1 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 skb->tail
NO_OVERFLOW_SIMPLE 1 skb->truesize
UNITS 1 skb unit_byte
USER_PTR 4 actions

net/openvswitch/actions.c dec_ttl_exception_handler() -> clone_execute()

Type Parameter Key Value
PARAM_VALUE 1 skb 4096-ptr_max
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 skb->dev->rtnl_link_ops->priv_size 0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE 1 skb->protocol 2048,34525
PARAM_VALUE 2 key 1-u64max
PARAM_VALUE 2 *key->nsh.context 0-4294967295
PARAM_VALUE 3 recirc_id 0
PARAM_VALUE 5 len 0-u16max
PARAM_VALUE 6 last 1
PARAM_VALUE 7 clone_flow_key 0
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 2 key (-1),472
BUF_SIZE 2 key (-1),472
CAPPED_DATA 1 skb 1
DATA_SOURCE 0 dp $0
DATA_SOURCE 1 skb $1
DATA_SOURCE 2 key $2
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 skb->csum 0-4294967041[c]
HOST_DATA 1 skb->csum_offset 0-u16max
HOST_DATA 1 skb->inner_protocol 1-255
HOST_DATA 1 skb->len 0-u32max[c]
HOST_DATA 1 skb->prev->csum_offset 0-u16max
HOST_DATA 1 skb->prev->data_len 0-u32max[c]
HOST_DATA 1 skb->prev->len 0-u32max[c]
HOST_DATA 1 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *skb->data 0-255
USER_DATA 2 key->eth.cvlan.tci 0-u16max
USER_DATA 2 key->eth.cvlan.tpid 0-u16max[u]
USER_DATA 2 key->eth.vlan.tci 0-u16max
USER_DATA 2 key->eth.vlan.tpid 0-u16max
USER_DATA 2 key->ip.proto 0-255
USER_DATA 2 key->ip.tos 0-255
USER_DATA 2 key->ip.ttl 0-255
USER_DATA 2 key->ipv4.addr.dst 0-u32max[c]
USER_DATA 2 key->ipv4.addr.src 0-u32max[c]
USER_DATA 2 key->tp.dst 0-u16max
USER_DATA 2 key->tp.src 0-u16max
USER_DATA 4 actions->nla_len 0-u16max
USER_DATA 4 actions->nla_type 0-u16max
USER_DATA 5 len 0-u16max
NO_OVERFLOW_SIMPLE 1 skb->data_len
NO_OVERFLOW_SIMPLE 1 skb->dev->group
NO_OVERFLOW_SIMPLE 1 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 skb->end
NO_OVERFLOW_SIMPLE 1 skb->extensions
NO_OVERFLOW_SIMPLE 1 skb->len
NO_OVERFLOW_SIMPLE 1 skb->prev->end
NO_OVERFLOW_SIMPLE 1 skb->prev->len
NO_OVERFLOW_SIMPLE 1 skb->prev->tail
NO_OVERFLOW_SIMPLE 1 skb->prev->truesize
NO_OVERFLOW_SIMPLE 1 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 skb->tail
NO_OVERFLOW_SIMPLE 1 skb->truesize
UNITS 1 skb unit_byte
USER_PTR 4 actions

net/openvswitch/actions.c execute_check_pkt_len() -> clone_execute()

Type Parameter Key Value
PARAM_VALUE 1 skb 4096-ptr_max
PARAM_VALUE 1 skb->cb 4096-ptr_max
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 skb->dev->rtnl_link_ops->priv_size 0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE 2 key 1-u64max
PARAM_VALUE 2 *key->nsh.context 0-4294967295
PARAM_VALUE 3 recirc_id 0
PARAM_VALUE 5 len 0-u16max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 2 key (-1),472
BUF_SIZE 2 key (-1),472
CAPPED_DATA 1 skb 1
DATA_SOURCE 0 dp $0
DATA_SOURCE 1 skb $1
DATA_SOURCE 2 key $2
DATA_SOURCE 6 last $4
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 skb->csum 0-4294967041[c]
HOST_DATA 1 skb->csum_offset 0-u16max
HOST_DATA 1 skb->data_len 0-u32max[c]
HOST_DATA 1 skb->inner_protocol 1-255
HOST_DATA 1 skb->len 0-u32max[c]
HOST_DATA 1 skb->prev->csum_offset 0-u16max
HOST_DATA 1 skb->prev->data_len 0-u32max[c]
HOST_DATA 1 skb->prev->len 0-u32max[c]
HOST_DATA 1 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->protocol 1-255
HOST_DATA 1 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *skb->data 0-255
USER_DATA 2 key->eth.cvlan.tci 0-u16max
USER_DATA 2 key->eth.cvlan.tpid 0-u16max[u]
USER_DATA 2 key->eth.vlan.tci 0-u16max
USER_DATA 2 key->eth.vlan.tpid 0-u16max
USER_DATA 2 key->ip.proto 0-255
USER_DATA 2 key->ip.tos 0-255
USER_DATA 2 key->ip.ttl 0-255
USER_DATA 2 key->ipv4.addr.dst 0-u32max[c]
USER_DATA 2 key->ipv4.addr.src 0-u32max[c]
USER_DATA 2 key->tp.dst 0-u16max
USER_DATA 2 key->tp.src 0-u16max
USER_DATA 4 actions->nla_len 0-u16max
USER_DATA 4 actions->nla_type 0-u16max
USER_DATA 5 len 0-u16max
USER_DATA 6 last 0-1
USER_DATA 7 clone_flow_key 0-1
NO_OVERFLOW_SIMPLE 1 skb->data_len
NO_OVERFLOW_SIMPLE 1 skb->dev->group
NO_OVERFLOW_SIMPLE 1 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 skb->end
NO_OVERFLOW_SIMPLE 1 skb->extensions
NO_OVERFLOW_SIMPLE 1 skb->len
NO_OVERFLOW_SIMPLE 1 skb->prev->end
NO_OVERFLOW_SIMPLE 1 skb->prev->len
NO_OVERFLOW_SIMPLE 1 skb->prev->tail
NO_OVERFLOW_SIMPLE 1 skb->prev->truesize
NO_OVERFLOW_SIMPLE 1 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 skb->tail
NO_OVERFLOW_SIMPLE 1 skb->truesize
UNITS 1 skb unit_byte
USER_PTR 4 actions

net/openvswitch/actions.c execute_recirc() -> clone_execute()

Type Parameter Key Value
PARAM_VALUE 1 skb 1-u64max
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 skb->dev->rtnl_link_ops->priv_size 0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE 2 key 4096-ptr_max
PARAM_VALUE 2 *key->nsh.context 0-4294967295
PARAM_VALUE 4 actions 0
PARAM_VALUE 5 len 0
PARAM_VALUE 7 clone_flow_key 1
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 2 key (-1),472
BUF_SIZE 2 key (-1),472
CAPPED_DATA 1 skb 1
DATA_SOURCE 0 dp $0
DATA_SOURCE 1 skb $1
DATA_SOURCE 2 key $2
DATA_SOURCE 3 recirc_id r nla_get_u32
DATA_SOURCE 6 last $4
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 skb->csum 0-4294967041[c]
HOST_DATA 1 skb->csum_offset 0-u16max
HOST_DATA 1 skb->data_len 0-u32max[c]
HOST_DATA 1 skb->inner_protocol 1-255
HOST_DATA 1 skb->len 0-u32max[c]
HOST_DATA 1 skb->prev->csum_offset 0-u16max
HOST_DATA 1 skb->prev->data_len 0-u32max[c]
HOST_DATA 1 skb->prev->len 0-u32max[c]
HOST_DATA 1 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->protocol 1-255
HOST_DATA 1 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *skb->data 0-255
HOST_DATA 2 key->eth.type 1-255
USER_DATA 2 key->eth.cvlan.tci 0-u16max
USER_DATA 2 key->eth.cvlan.tpid 0-u16max[u]
USER_DATA 2 key->eth.vlan.tci 0-u16max
USER_DATA 2 key->eth.vlan.tpid 0-u16max
USER_DATA 2 key->ip.proto 0-255
USER_DATA 2 key->ip.tos 0-255
USER_DATA 2 key->ip.ttl 0-255
USER_DATA 2 key->ipv4.addr.dst 0-u32max[c]
USER_DATA 2 key->ipv4.addr.src 0-u32max[c]
USER_DATA 2 key->tp.dst 0-u16max
USER_DATA 2 key->tp.src 0-u16max
USER_DATA 6 last 0-1
NO_OVERFLOW_SIMPLE 1 skb->data_len
NO_OVERFLOW_SIMPLE 1 skb->dev->group
NO_OVERFLOW_SIMPLE 1 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 skb->end
NO_OVERFLOW_SIMPLE 1 skb->extensions
NO_OVERFLOW_SIMPLE 1 skb->len
NO_OVERFLOW_SIMPLE 1 skb->prev->end
NO_OVERFLOW_SIMPLE 1 skb->prev->len
NO_OVERFLOW_SIMPLE 1 skb->prev->tail
NO_OVERFLOW_SIMPLE 1 skb->prev->truesize
NO_OVERFLOW_SIMPLE 1 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 skb->tail
NO_OVERFLOW_SIMPLE 1 skb->truesize
UNITS 1 skb unit_byte

net/openvswitch/actions.c sample() -> clone_execute()

Type Parameter Key Value
PARAM_VALUE 1 skb 4096-ptr_max
PARAM_VALUE 1 skb->cb 4096-ptr_max
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 skb->dev->rtnl_link_ops->priv_size 0,8,32,40,48,56,88,112,120,144,160,224,240,256,296,616,624,728,736,744,1056,1128,1336,1616,2176,2240,2272,2560,3296,3544,3552,3720,9688-u64max
PARAM_VALUE 2 key 1-u64max
PARAM_VALUE 2 *key->nsh.context 0-4294967295
PARAM_VALUE 3 recirc_id 0
PARAM_VALUE 4 actions 4096-ptr_max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 1 skb (-1)-s32max
BUF_SIZE 2 key (-1),472
BUF_SIZE 2 key (-1),472
CAPPED_DATA 1 skb 1
DATA_SOURCE 0 dp $0
DATA_SOURCE 1 skb $1
DATA_SOURCE 2 key $2
DATA_SOURCE 4 actions r nla_next
DATA_SOURCE 6 last $4
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 1 skb->csum 0-4294967041[c]
HOST_DATA 1 skb->csum_offset 0-u16max
HOST_DATA 1 skb->data_len 0-u32max[c]
HOST_DATA 1 skb->inner_protocol 1-255
HOST_DATA 1 skb->len 0-u32max[c]
HOST_DATA 1 skb->prev->csum_offset 0-u16max
HOST_DATA 1 skb->prev->data_len 0-u32max[c]
HOST_DATA 1 skb->prev->len 0-u32max[c]
HOST_DATA 1 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->protocol 1-255
HOST_DATA 1 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *skb->data 0-255
USER_DATA 2 key->eth.cvlan.tci 0-u16max
USER_DATA 2 key->eth.cvlan.tpid 0-u16max[u]
USER_DATA 2 key->eth.vlan.tci 0-u16max
USER_DATA 2 key->eth.vlan.tpid 0-u16max
USER_DATA 2 key->ip.proto 0-255
USER_DATA 2 key->ip.tos 0-255
USER_DATA 2 key->ip.ttl 0-255
USER_DATA 2 key->ipv4.addr.dst 0-u32max[c]
USER_DATA 2 key->ipv4.addr.src 0-u32max[c]
USER_DATA 2 key->tp.dst 0-u16max
USER_DATA 2 key->tp.src 0-u16max
USER_DATA 4 actions->nla_len 0-u16max
USER_DATA 4 actions->nla_type 0-u16max
USER_DATA 5 len (-65536)-u16max
USER_DATA 6 last 0-1
USER_DATA 7 clone_flow_key 0-1
NO_OVERFLOW_SIMPLE 1 skb->data_len
NO_OVERFLOW_SIMPLE 1 skb->dev->group
NO_OVERFLOW_SIMPLE 1 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 skb->end
NO_OVERFLOW_SIMPLE 1 skb->extensions
NO_OVERFLOW_SIMPLE 1 skb->len
NO_OVERFLOW_SIMPLE 1 skb->prev->end
NO_OVERFLOW_SIMPLE 1 skb->prev->len
NO_OVERFLOW_SIMPLE 1 skb->prev->tail
NO_OVERFLOW_SIMPLE 1 skb->prev->truesize
NO_OVERFLOW_SIMPLE 1 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 skb->tail
NO_OVERFLOW_SIMPLE 1 skb->truesize
UNITS 1 skb unit_byte
USER_PTR 4 actions