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Defined in 1 files as a function:

Referenced in 1 files:

Smatch caller information:

net/core/skbuff.c __skb_clone() -> __copy_skb_header()

Type Parameter Key Value
PARAM_VALUE 0 new 4096-ptr_max
PARAM_VALUE 0 new->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 0 new->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 0 new->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 0 new->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 0 new->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 0 new->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 0 new->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 0 new->next 0
PARAM_VALUE 0 new->prev 0
PARAM_VALUE 0 new->sk 0
PARAM_VALUE 1 old 4096-ptr_max
BUF_SIZE 0 new (-1)-s32max
BUF_SIZE 0 new (-1)-s32max
CAPPED_DATA 0 new 1
DATA_SOURCE 0 new $0
DATA_SOURCE 1 old $1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 new->csum 0-126976[c]
HOST_DATA 0 new->csum_offset 0-u16max
HOST_DATA 0 new->inner_protocol 1-255
HOST_DATA 0 new->prev->csum_offset 0-u16max
HOST_DATA 0 new->prev->data_len 0-u32max[c]
HOST_DATA 0 new->prev->len 1-u32max[c]
HOST_DATA 0 new->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 new->protocol 1-255
HOST_DATA 0 new->tstamp 500000002-4294967299794967295[c]
HOST_DATA 0 new->users.refs.counter s32min-0,2-s32max
HOST_DATA 0 *new->data 0-255
NO_OVERFLOW_SIMPLE 0 new->data_len
NO_OVERFLOW_SIMPLE 0 new->dev->group
NO_OVERFLOW_SIMPLE 0 new->dev->num_tc
NO_OVERFLOW_SIMPLE 0 new->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 0 new->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 0 new->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 0 new->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 0 new->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 0 new->end
NO_OVERFLOW_SIMPLE 0 new->extensions
NO_OVERFLOW_SIMPLE 0 new->len
NO_OVERFLOW_SIMPLE 0 new->next->end
NO_OVERFLOW_SIMPLE 0 new->next->len
NO_OVERFLOW_SIMPLE 0 new->next->tail
NO_OVERFLOW_SIMPLE 0 new->next->truesize
NO_OVERFLOW_SIMPLE 0 new->prev->end
NO_OVERFLOW_SIMPLE 0 new->prev->len
NO_OVERFLOW_SIMPLE 0 new->prev->tail
NO_OVERFLOW_SIMPLE 0 new->prev->truesize
NO_OVERFLOW_SIMPLE 0 new->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 0 new->tail
NO_OVERFLOW_SIMPLE 0 new->truesize
UNITS 0 new unit_byte
UNITS 1 old unit_byte
HALF_LOCKED2 rcu_read

net/core/skbuff.c alloc_skb_for_msg() -> __copy_skb_header()

Type Parameter Key Value
PARAM_VALUE 0 new 4096-ptr_max
PARAM_VALUE 1 old 4096-ptr_max
PARAM_VALUE 1 old->next 0
DATA_SOURCE 0 new r alloc_skb
DATA_SOURCE 1 old $0
NOCHECK_CALL

net/core/skbuff.c skb_copy_header() -> __copy_skb_header()

Type Parameter Key Value
PARAM_VALUE 0 new 4096-ptr_max
PARAM_VALUE 1 old->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 old->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 old->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 old->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 old->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 old->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 old->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
BUF_SIZE 0 new (-1)-s32max
BUF_SIZE 0 new (-1)-s32max
BUF_SIZE 1 old (-1)-s32max
BUF_SIZE 1 old (-1)-s32max
BUF_SIZE 1 old->dev s32min-(-1),1-s32max
CAPPED_DATA 0 new 1
DATA_SOURCE 0 new $0
DATA_SOURCE 1 old $1
STR_LEN 1 old->sk (-1)
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 0 new->data_len 0-u32max[c]
HOST_DATA 0 new->len 0-u32max[c]
HOST_DATA 0 new->truesize 0-u32max[c]
HOST_DATA 1 old->csum 0-4294967040[c]
HOST_DATA 1 old->csum_offset 0-u16max
HOST_DATA 1 old->data_len 0-u32max[c]
HOST_DATA 1 old->len 0-u32max[c]
HOST_DATA 1 old->next->csum_offset 0-u16max
HOST_DATA 1 old->next->data_len 0-u32max[c]
HOST_DATA 1 old->next->len 1-u32max[c]
HOST_DATA 1 old->next->prev->data_len 0-u32max[c]
HOST_DATA 1 old->prev->csum_offset 0-u16max
HOST_DATA 1 old->prev->data_len 0-u32max[c]
HOST_DATA 1 old->prev->len 0-u32max[c]
HOST_DATA 1 old->prev->truesize 0-u32max
HOST_DATA 1 old->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 old->prev->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 old->truesize 0-u32max
HOST_DATA 1 old->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 old->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *old->data 0-255
NO_OVERFLOW_SIMPLE 0 new->data_len
NO_OVERFLOW_SIMPLE 0 new->dev->num_tc
NO_OVERFLOW_SIMPLE 0 new->dev->proto_down
NO_OVERFLOW_SIMPLE 0 new->end
NO_OVERFLOW_SIMPLE 0 new->len
NO_OVERFLOW_SIMPLE 0 new->truesize
NO_OVERFLOW_SIMPLE 1 old->data_len
NO_OVERFLOW_SIMPLE 1 old->dev->group
NO_OVERFLOW_SIMPLE 1 old->dev->num_tc
NO_OVERFLOW_SIMPLE 1 old->dev->proto_down
NO_OVERFLOW_SIMPLE 1 old->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 old->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 old->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 old->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 old->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 old->end
NO_OVERFLOW_SIMPLE 1 old->extensions
NO_OVERFLOW_SIMPLE 1 old->len
NO_OVERFLOW_SIMPLE 1 old->next->end
NO_OVERFLOW_SIMPLE 1 old->next->len
NO_OVERFLOW_SIMPLE 1 old->next->tail
NO_OVERFLOW_SIMPLE 1 old->next->truesize
NO_OVERFLOW_SIMPLE 1 old->prev->data_len
NO_OVERFLOW_SIMPLE 1 old->prev->end
NO_OVERFLOW_SIMPLE 1 old->prev->len
NO_OVERFLOW_SIMPLE 1 old->prev->tail
NO_OVERFLOW_SIMPLE 1 old->prev->truesize
NO_OVERFLOW_SIMPLE 1 old->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 old->tail
NO_OVERFLOW_SIMPLE 1 old->truesize
UNITS 1 old unit_byte

net/core/skbuff.c skb_segment() -> __copy_skb_header()

Type Parameter Key Value
PARAM_VALUE 0 new 4096-ptr_max
PARAM_VALUE 0 new->_nfct 0
PARAM_VALUE 0 new->_sk_redir 0
PARAM_VALUE 0 new->_skb_refdst 0
PARAM_VALUE 0 new->active_extensions 0
PARAM_VALUE 0 new->alloc_cpu 0
PARAM_VALUE 0 new->cloned 0
PARAM_VALUE 0 new->csum 0
PARAM_VALUE 0 new->csum_complete_sw 0
PARAM_VALUE 0 new->csum_level 0
PARAM_VALUE 0 new->csum_not_inet 0
PARAM_VALUE 0 new->csum_offset 0
PARAM_VALUE 0 new->csum_start 0
PARAM_VALUE 0 new->csum_valid 0
PARAM_VALUE 0 new->data_len 0
PARAM_VALUE 0 new->decrypted 0
PARAM_VALUE 0 new->destructor 0
PARAM_VALUE 0 new->dev 0
PARAM_VALUE 0 new->dev_scratch 0
PARAM_VALUE 0 new->dst_pending_confirm 0
PARAM_VALUE 0 new->encap_hdr_csum 0
PARAM_VALUE 0 new->encapsulation 0
PARAM_VALUE 0 new->end 0
PARAM_VALUE 0 new->extensions 0
PARAM_VALUE 0 new->fclone 0-1
PARAM_VALUE 0 new->from_ingress 0
PARAM_VALUE 0 new->hash 0
PARAM_VALUE 0 new->hdr_len 0
PARAM_VALUE 0 new->head 1-u64max
PARAM_VALUE 0 new->head_frag 0
PARAM_VALUE 0 new->headers.alloc_cpu 0
PARAM_VALUE 0 new->headers.csum 0
PARAM_VALUE 0 new->headers.csum_complete_sw 0
PARAM_VALUE 0 new->headers.csum_level 0
PARAM_VALUE 0 new->headers.csum_not_inet 0
PARAM_VALUE 0 new->headers.csum_offset 0
PARAM_VALUE 0 new->headers.csum_start 0
PARAM_VALUE 0 new->headers.csum_valid 0
PARAM_VALUE 0 new->headers.decrypted 0
PARAM_VALUE 0 new->headers.dst_pending_confirm 0
PARAM_VALUE 0 new->headers.encap_hdr_csum 0
PARAM_VALUE 0 new->headers.encapsulation 0
PARAM_VALUE 0 new->headers.from_ingress 0
PARAM_VALUE 0 new->headers.hash 0
PARAM_VALUE 0 new->headers.ignore_df 0
PARAM_VALUE 0 new->headers.inner_ipproto 0
PARAM_VALUE 0 new->headers.inner_mac_header 0
PARAM_VALUE 0 new->headers.inner_network_header 0
PARAM_VALUE 0 new->headers.inner_protocol 0
PARAM_VALUE 0 new->headers.inner_protocol_type 0
PARAM_VALUE 0 new->headers.inner_transport_header 0
PARAM_VALUE 0 new->headers.ip_summed 0
PARAM_VALUE 0 new->headers.ipvs_property 0
PARAM_VALUE 0 new->headers.kcov_handle.val 0
PARAM_VALUE 0 new->headers.l4_hash 0
PARAM_VALUE 0 new->headers.mac_header 0
PARAM_VALUE 0 new->headers.mark 0
PARAM_VALUE 0 new->headers.napi_id 0
PARAM_VALUE 0 new->headers.ndisc_nodetype 0
PARAM_VALUE 0 new->headers.network_header 0
PARAM_VALUE 0 new->headers.nf_skip_egress 0
PARAM_VALUE 0 new->headers.nf_trace 0
PARAM_VALUE 0 new->headers.no_fcs 0
PARAM_VALUE 0 new->headers.offload_fwd_mark 0
PARAM_VALUE 0 new->headers.offload_l3_fwd_mark 0
PARAM_VALUE 0 new->headers.ooo_okay 0
PARAM_VALUE 0 new->headers.pkt_type 0
PARAM_VALUE 0 new->headers.priority 0
PARAM_VALUE 0 new->headers.protocol 0
PARAM_VALUE 0 new->headers.redirected 0
PARAM_VALUE 0 new->headers.remcsum_offload 0
PARAM_VALUE 0 new->headers.reserved_tailroom 0
PARAM_VALUE 0 new->headers.secmark 0
PARAM_VALUE 0 new->headers.sender_cpu 0
PARAM_VALUE 0 new->headers.skb_iif 0
PARAM_VALUE 0 new->headers.slow_gro 0
PARAM_VALUE 0 new->headers.sw_hash 0
PARAM_VALUE 0 new->headers.tc_at_ingress 0
PARAM_VALUE 0 new->headers.tc_depth 0
PARAM_VALUE 0 new->headers.tc_index 0
PARAM_VALUE 0 new->headers.tc_skip_classify 0
PARAM_VALUE 0 new->headers.transport_header 0
PARAM_VALUE 0 new->headers.tstamp_type 0
PARAM_VALUE 0 new->headers.unreadable 0
PARAM_VALUE 0 new->headers.vlan_all 0
PARAM_VALUE 0 new->headers.vlan_proto 0
PARAM_VALUE 0 new->headers.vlan_tci 0
PARAM_VALUE 0 new->headers.wifi_acked 0
PARAM_VALUE 0 new->headers.wifi_acked_valid 0
PARAM_VALUE 0 new->ignore_df 0
PARAM_VALUE 0 new->inner_ipproto 0
PARAM_VALUE 0 new->inner_mac_header 0
PARAM_VALUE 0 new->inner_network_header 0
PARAM_VALUE 0 new->inner_protocol 0
PARAM_VALUE 0 new->inner_protocol_type 0
PARAM_VALUE 0 new->inner_transport_header 0
PARAM_VALUE 0 new->ip_summed 0
PARAM_VALUE 0 new->ipvs_property 0
PARAM_VALUE 0 new->kcov_handle.val 0
PARAM_VALUE 0 new->l4_hash 0
PARAM_VALUE 0 new->list.next 0
PARAM_VALUE 0 new->list.prev 0
PARAM_VALUE 0 new->ll_node.next 0
PARAM_VALUE 0 new->mac_header u16max
PARAM_VALUE 0 new->mac_len 0
PARAM_VALUE 0 new->mark 0
PARAM_VALUE 0 new->napi_id 0
PARAM_VALUE 0 new->ndisc_nodetype 0
PARAM_VALUE 0 new->network_header 0
PARAM_VALUE 0 new->next 0
PARAM_VALUE 0 new->nf_skip_egress 0
PARAM_VALUE 0 new->nf_trace 0
PARAM_VALUE 0 new->no_fcs 0
PARAM_VALUE 0 new->nohdr 0
PARAM_VALUE 0 new->offload_fwd_mark 0
PARAM_VALUE 0 new->offload_l3_fwd_mark 0
PARAM_VALUE 0 new->ooo_okay 0
PARAM_VALUE 0 new->peeked 0
PARAM_VALUE 0 new->pkt_type 0
PARAM_VALUE 0 new->pp_recycle 0
PARAM_VALUE 0 new->prev 0
PARAM_VALUE 0 new->priority 0
PARAM_VALUE 0 new->protocol 0
PARAM_VALUE 0 new->queue_mapping 0
PARAM_VALUE 0 new->rbnode.__rb_parent_color 0
PARAM_VALUE 0 new->rbnode.rb_left 0
PARAM_VALUE 0 new->rbnode.rb_right 0
PARAM_VALUE 0 new->redirected 0
PARAM_VALUE 0 new->remcsum_offload 0
PARAM_VALUE 0 new->reserved_tailroom 0
PARAM_VALUE 0 new->secmark 0
PARAM_VALUE 0 new->sender_cpu 0
PARAM_VALUE 0 new->sk 0
PARAM_VALUE 0 new->sk->ns_tracker->alloc_stack_handle 0-4294967295
PARAM_VALUE 0 new->sk->ns_tracker->dead 0-1
PARAM_VALUE 0 new->sk->ns_tracker->free_stack_handle 0-4294967295
PARAM_VALUE 0 new->sk->sk_callback_lock.dep_map->name 0-255
PARAM_VALUE 0 new->sk->sk_filter->rcu.func 1-u64max
PARAM_VALUE 0 new->sk->sk_reuseport_cb->rcu.func 1-u64max
PARAM_VALUE 0 new->skb_iif 0
PARAM_VALUE 0 new->skb_mstamp_ns 0
PARAM_VALUE 0 new->slow_gro 0
PARAM_VALUE 0 new->sw_hash 0
PARAM_VALUE 0 new->tc_at_ingress 0
PARAM_VALUE 0 new->tc_depth 0
PARAM_VALUE 0 new->tc_index 0
PARAM_VALUE 0 new->tc_skip_classify 0
PARAM_VALUE 0 new->tcp_tsorted_anchor.next 0
PARAM_VALUE 0 new->tcp_tsorted_anchor.prev 0
PARAM_VALUE 0 new->transport_header u16max
PARAM_VALUE 0 new->tstamp 0
PARAM_VALUE 0 new->tstamp_type 0
PARAM_VALUE 0 new->unreadable 0
PARAM_VALUE 0 new->users.refs.counter 1
PARAM_VALUE 0 new->vlan_all 0
PARAM_VALUE 0 new->vlan_proto 0
PARAM_VALUE 0 new->vlan_tci 0
PARAM_VALUE 0 new->wifi_acked 0
PARAM_VALUE 0 new->wifi_acked_valid 0
PARAM_VALUE 1 old 4096-ptr_max
PARAM_VALUE 1 old->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 1 old->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 1 old->dev->ndisc_ops->fill_addr_option 4096-ptr_max
PARAM_VALUE 1 old->dev->ndisc_ops->parse_options 4096-ptr_max
PARAM_VALUE 1 old->dev->ndisc_ops->update 4096-ptr_max
PARAM_VALUE 1 old->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 old->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
BUF_SIZE 0 new 0-u32max,u64max
BUF_SIZE 0 new 0-u32max,u64max
BUF_SIZE 1 old (-1)-s32max
BUF_SIZE 1 old (-1)-s32max
BUF_SIZE 1 old->dev s32min-(-1),1-s32max
CAPPED_DATA 0 new->head 1
DATA_SOURCE 1 old $0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HOST_DATA 1 old->csum 0-4294967040[c]
HOST_DATA 1 old->csum_offset 0-u16max
HOST_DATA 1 old->inner_protocol 1-255
HOST_DATA 1 old->next->csum_offset 0-u16max
HOST_DATA 1 old->next->data_len 0-u32max[c]
HOST_DATA 1 old->next->len 1-u32max[c]
HOST_DATA 1 old->prev->csum_offset 0-u16max
HOST_DATA 1 old->prev->data_len 0-u32max[c]
HOST_DATA 1 old->prev->len 0-u32max[c]
HOST_DATA 1 old->prev->truesize 0-u32max
HOST_DATA 1 old->prev->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 old->prev->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 old->protocol 1-255
HOST_DATA 1 old->tstamp 500000002-4294967299794967295[c]
HOST_DATA 1 old->users.refs.counter s32min-0,2-s32max
HOST_DATA 1 *old->data 0-255
NO_OVERFLOW_SIMPLE 0 new->len
NO_OVERFLOW_SIMPLE 1 old->data_len
NO_OVERFLOW_SIMPLE 1 old->dev->group
NO_OVERFLOW_SIMPLE 1 old->dev->num_tc
NO_OVERFLOW_SIMPLE 1 old->dev->real_num_rx_queues
NO_OVERFLOW_SIMPLE 1 old->dev->real_num_tx_queues
NO_OVERFLOW_SIMPLE 1 old->dev->stats.rx_bytes
NO_OVERFLOW_SIMPLE 1 old->dev->stats.tx_bytes
NO_OVERFLOW_SIMPLE 1 old->dev->tx_queue_len
NO_OVERFLOW_SIMPLE 1 old->end
NO_OVERFLOW_SIMPLE 1 old->len
NO_OVERFLOW_SIMPLE 1 old->next->data_len
NO_OVERFLOW_SIMPLE 1 old->next->end
NO_OVERFLOW_SIMPLE 1 old->next->len
NO_OVERFLOW_SIMPLE 1 old->next->tail
NO_OVERFLOW_SIMPLE 1 old->next->truesize
NO_OVERFLOW_SIMPLE 1 old->prev->data_len
NO_OVERFLOW_SIMPLE 1 old->prev->end
NO_OVERFLOW_SIMPLE 1 old->prev->len
NO_OVERFLOW_SIMPLE 1 old->prev->tail
NO_OVERFLOW_SIMPLE 1 old->prev->truesize
NO_OVERFLOW_SIMPLE 1 old->sk->sk_backlog.len
NO_OVERFLOW_SIMPLE 1 old->tail
NO_OVERFLOW_SIMPLE 1 old->truesize

net/core/skbuff.c skb_segment_list() -> __copy_skb_header()

Type Parameter Key Value
PARAM_VALUE 0 new 4096-ptr_max
PARAM_VALUE 0 new->_nfct 0
PARAM_VALUE 0 new->_skb_refdst 0
PARAM_VALUE 0 new->active_extensions 0
PARAM_VALUE 0 new->destructor 0
PARAM_VALUE 0 *new->cb 0-255
PARAM_VALUE 1 old 4096-ptr_max
BUF_SIZE 0 new (-1),240
BUF_SIZE 0 new (-1),240
BUF_SIZE 1 old->next (-1),240
CAPPED_DATA 0 new->head 1
DATA_SOURCE 1 old $0
NOCHECK_CALL
UNITS 0 new unit_byte