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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/ipv4/tcp_ipv4.c tcp_v4_send_ack() -> ip_send_unicast_reply()

Type Parameter Key Value
PARAM_VALUE 1 orig_sk 4096-ptr_max
PARAM_VALUE 2 skb 4096-ptr_max
PARAM_VALUE 2 skb->cb 4096-ptr_max
PARAM_VALUE 2 skb->dev->ethtool_ops->create_rxfh_context 0-s64max
PARAM_VALUE 2 skb->dev->ethtool_ops->get_link_ext_state 0-s64max
PARAM_VALUE 2 skb->dev->ethtool_ops->get_mm_stats 0-s64max
PARAM_VALUE 2 skb->dev->ethtool_ops->modify_rxfh_context 0-s64max
PARAM_VALUE 2 skb->dev->ethtool_ops->remove_rxfh_context 0-s64max
PARAM_VALUE 2 skb->dev->ethtool_ops->rxfh_max_num_contexts 0-4294967295
PARAM_VALUE 2 skb->dev->ethtool_ops->supported_coalesce_params 0-s64max
PARAM_VALUE 2 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 2 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 2 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 2 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 2 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 2 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 2 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 *skb->dev->name 0-255
PARAM_VALUE 6 arg 4244855031080722432
PARAM_VALUE 6 arg->csum 0-4294967040
PARAM_VALUE 6 arg->csumoffset 8
PARAM_VALUE 6 arg->flags 0-1
PARAM_VALUE 7 len 20
BUF_SIZE 0 sk 0
BUF_SIZE 1 orig_sk->__sk_common.skc_prot (-1),448
BUF_SIZE 2 skb (-1)-s32max
BUF_SIZE 2 skb (-1)-s32max
CAPPED_DATA 1 orig_sk->__sk_common.skc_net.net 1
CAPPED_DATA 2 skb 1
DATA_SOURCE 1 orig_sk $0
DATA_SOURCE 2 skb $1
DATA_SOURCE 8 transmit_time r tcp_transmit_time
DATA_SOURCE 9 txhash $11
BIT_INFO 0 sk 0x0,0x0
BIT_INFO 0 &sk->__sk_common.skc_net 0x30,0xffffffffffffffff
MEM_ZERO 6 arg
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 1 orig_sk->sk_backlog.head->csum 0-4294967040[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->csum 0-4294967040[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->next->csum 0-4294967040[c]
HOST_DATA 1 orig_sk->sk_receive_queue.prev->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_receive_queue.prev->next->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->next->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_receive_queue.prev->next->truesize 0-u32max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->truesize 0-u32max
HOST_DATA 2 skb->csum 0-4294967040[c]
HOST_DATA 2 skb->csum_offset 0-u16max
HOST_DATA 2 skb->data_len 0-u32max[c]
HOST_DATA 2 skb->len 0-u32max[c]
HOST_DATA 2 skb->prev->csum_offset 0-u16max
HOST_DATA 2 skb->prev->data_len 0-u32max[c]
HOST_DATA 2 skb->prev->len 1-u32max[c]
HOST_DATA 2 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 2 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 2 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 2 *skb->data 0-255
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->next->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->truesize
NO_OVERFLOW_SIMPLE 2 skb->data_len
NO_OVERFLOW_SIMPLE 2 skb->dev->group
NO_OVERFLOW_SIMPLE 2 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 2 skb->dev->proto_down
NO_OVERFLOW_SIMPLE 2 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 2 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 2 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 2 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 2 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 2 skb->end
NO_OVERFLOW_SIMPLE 2 skb->len
NO_OVERFLOW_SIMPLE 2 skb->next->data_len
NO_OVERFLOW_SIMPLE 2 skb->next->end
NO_OVERFLOW_SIMPLE 2 skb->next->len
NO_OVERFLOW_SIMPLE 2 skb->next->tail
NO_OVERFLOW_SIMPLE 2 skb->next->truesize
NO_OVERFLOW_SIMPLE 2 skb->prev->data_len
NO_OVERFLOW_SIMPLE 2 skb->prev->end
NO_OVERFLOW_SIMPLE 2 skb->prev->len
NO_OVERFLOW_SIMPLE 2 skb->prev->tail
NO_OVERFLOW_SIMPLE 2 skb->prev->truesize
NO_OVERFLOW_SIMPLE 2 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 2 skb->tail
NO_OVERFLOW_SIMPLE 2 skb->truesize
UNITS 1 orig_sk unit_byte
UNITS 2 skb unit_byte
UNITS 4 daddr unit_byte
UNITS 5 saddr unit_byte
UNITS 7 len unit_byte
UNITS 9 txhash unit_byte
LOCK2 bh
HALF_LOCKED2 1 orig_sk
HALF_LOCKED2 1 &orig_sk->sk_lock.slock

net/ipv4/tcp_ipv4.c tcp_v4_send_reset() -> ip_send_unicast_reply()

Type Parameter Key Value
PARAM_VALUE 1 orig_sk 0,4096-ptr_max
PARAM_VALUE 2 skb 4096-ptr_max
PARAM_VALUE 2 skb->cb 4096-ptr_max
PARAM_VALUE 2 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 2 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 2 skb->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 2 skb->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 2 skb->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 2 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 2 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 skb->next->sk->ns_tracker->alloc_stack_handle 0-4294967295
PARAM_VALUE 2 skb->next->sk->ns_tracker->dead 0-1
PARAM_VALUE 2 skb->next->sk->ns_tracker->free_stack_handle 0-4294967295
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->process_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->process_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->request_key_auth->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->request_key_auth->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->session_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->session_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->thread_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->next->sk->sk_peer_cred->thread_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->dfl_pwq 0-s64max
PARAM_VALUE 2 skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_max_active s32min-s32max
PARAM_VALUE 2 skb->sk->__sk_common.skc_net.net->xfrm.nat_keepalive_work.wq->saved_min_active s32min-s32max
PARAM_VALUE 2 skb->sk->ns_tracker->alloc_stack_handle 0-4294967295
PARAM_VALUE 2 skb->sk->ns_tracker->dead 0-1
PARAM_VALUE 2 skb->sk->ns_tracker->free_stack_handle 0-4294967295
PARAM_VALUE 2 skb->sk->sk_peer_cred->process_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->process_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->request_key_auth->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->request_key_auth->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->session_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->session_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->thread_keyring->user->qnbytes s32min-s32max
PARAM_VALUE 2 skb->sk->sk_peer_cred->thread_keyring->user->qnkeys s32min-s32max
PARAM_VALUE 2 *skb->dev->name 0-255
PARAM_VALUE 6 arg 8554792396550193152
PARAM_VALUE 6 arg->csum 0-4294967040
PARAM_VALUE 6 arg->csumoffset 8
PARAM_VALUE 6 arg->flags 0-1
PARAM_VALUE 7 len 20
BUF_SIZE 0 sk 0
BUF_SIZE 1 orig_sk->__sk_common.skc_prot (-1),448
BUF_SIZE 2 skb (-1)-s32max
BUF_SIZE 2 skb (-1)-s32max
CAPPED_DATA 2 skb 1
DATA_SOURCE 1 orig_sk $0
DATA_SOURCE 2 skb $1
BIT_INFO 0 sk 0x0,0x0
BIT_INFO 0 &sk->__sk_common.skc_net 0x30,0xffffffffffffffff
MEM_ZERO 6 arg
PREEMPT_ADD <- disables preempt
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 1 orig_sk->sk_backlog.head->csum 0-4294967040[c]
HOST_DATA 1 orig_sk->sk_backlog.head->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_backlog.head->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_backlog.head->len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_backlog.head->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 orig_sk->sk_backlog.head->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 orig_sk->sk_backlog.tail->csum 0-4294967040[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_backlog.tail->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->next->csum 0-4294967040[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->next->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_backlog.tail->next->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->next->len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->next->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->next->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 orig_sk->sk_backlog.tail->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 orig_sk->sk_backlog.tail->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_receive_queue.prev->next->csum_offset 0-u16max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->next->data_len 0-u32max[c]
HOST_DATA 1 orig_sk->sk_receive_queue.prev->next->truesize 0-u32max
HOST_DATA 1 orig_sk->sk_receive_queue.prev->truesize 0-u32max
HOST_DATA 2 skb->csum 0-4294967041[c]
HOST_DATA 2 skb->csum_offset 0-u16max
HOST_DATA 2 skb->data_len 0-u32max[c]
HOST_DATA 2 skb->len 0-u32max[c]
HOST_DATA 2 skb->prev->csum_offset 0-u16max
HOST_DATA 2 skb->prev->data_len 0-u32max[c]
HOST_DATA 2 skb->prev->len 0-u32max[c]
HOST_DATA 2 skb->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 2 skb->truesize 0-u32max
HOST_DATA 2 skb->tstamp 500000002-4294967299794967295[c]
HOST_DATA 2 skb->users.refs.counter s32min-0,2-s32max
HOST_DATA 2 *skb->data 0-255
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.head->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_backlog.tail->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_prot_creator->twsk_prot->twsk_slab->sheaf_capacity
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_receive_queue.prev->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->end
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->prev->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->tail
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->next->data_len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->next->len
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->next->truesize
NO_OVERFLOW_SIMPLE 1 orig_sk->sk_write_queue.prev->truesize
NO_OVERFLOW_SIMPLE 2 skb->data_len
NO_OVERFLOW_SIMPLE 2 skb->dev->group
NO_OVERFLOW_SIMPLE 2 skb->dev->num_tc
NO_OVERFLOW_SIMPLE 2 skb->dev->proto_down
NO_OVERFLOW_SIMPLE 2 skb->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 2 skb->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 2 skb->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 2 skb->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 2 skb->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 2 skb->end
NO_OVERFLOW_SIMPLE 2 skb->len
NO_OVERFLOW_SIMPLE 2 skb->next->data_len
NO_OVERFLOW_SIMPLE 2 skb->next->end
NO_OVERFLOW_SIMPLE 2 skb->next->len
NO_OVERFLOW_SIMPLE 2 skb->next->tail
NO_OVERFLOW_SIMPLE 2 skb->next->truesize
NO_OVERFLOW_SIMPLE 2 skb->prev->data_len
NO_OVERFLOW_SIMPLE 2 skb->prev->end
NO_OVERFLOW_SIMPLE 2 skb->prev->len
NO_OVERFLOW_SIMPLE 2 skb->prev->tail
NO_OVERFLOW_SIMPLE 2 skb->prev->truesize
NO_OVERFLOW_SIMPLE 2 skb->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 2 skb->tail
NO_OVERFLOW_SIMPLE 2 skb->truesize
UNITS 1 orig_sk unit_byte
UNITS 2 skb unit_byte
UNITS 4 daddr unit_byte
UNITS 5 saddr unit_byte
UNITS 7 len unit_byte
UNITS 9 txhash unit_byte
LOCK2 bh
LOCK2 rcu_read
HALF_LOCKED2 1 orig_sk
HALF_LOCKED2 1 &orig_sk->sk_lock.slock