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Defined in 1 files as a prototype:

Defined in 1 files as a function:

Referenced in 7 files:

Smatch caller information:

net/core/skbuff.c skb_copy_and_csum_bits() -> skb_copy_and_csum_bits()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
BUF_SIZE 2 to s32min-(-1),1-s32max
BUF_SIZE 2 to s32min-(-1),1-s32max
CAPPED_DATA 3 len 1
DATA_SOURCE 2 to $2 [m]
NOSPEC 2 to
NOSPEC 2 to
NOSPEC 3 len
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA 2 to 4096-ptr_max[c]
HOST_DATA 3 len s32min-2147483646[c]
USER_DATA 2 to 4096-ptr_max[c][u]
USER_DATA 3 len 1-2147483646[c]
NO_OVERFLOW_SIMPLE 3 len
UNITS 0 skb unit_byte
UNITS 1 offset unit_byte
UNITS 2 to unit_byte
UNITS 3 len unit_byte

net/core/skbuff.c skb_copy_and_csum_dev() -> skb_copy_and_csum_bits()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->dev->nd_net.net->ipv4.fqdir->f->frag_expire 0,663510801442193408,1753052602134376448,4007388366431105024,8876081723503042560
PARAM_VALUE 0 skb->dev->nd_net.net->ipv4.fqdir->f->qsize 0,304,320
PARAM_VALUE 0 skb->dev->rtnl_link_ops->maxtype 0-6,8-10,15,18,20,22,24,34,50
PARAM_VALUE 1 offset s32min-(-1)
PARAM_VALUE 2 to 4096-ptr_max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
CAPPED_DATA 0 skb 1
CAPPED_DATA 1 offset 1
DATA_SOURCE 0 skb $0
PARAM_COMPARE 1 offset != $0->len
RX_PATH
TASK_NOT_RUNNING
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
HOST_DATA 3 len s32min-s32max[c]
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
UNITS 1 offset unit_byte
UNITS 2 to unit_byte
UNITS 3 len unit_byte
HALF_LOCKED2 &hw_priv->hwlock
HALF_LOCKED2 &priv->lock
HALF_LOCKED2 &txq->_xmit_lock
HALF_LOCKED2 bh
HALF_LOCKED2 flags
HALF_LOCKED2 irq
HALF_LOCKED2 rcu_read

net/ipv4/icmp.c icmp_glue_bits() -> skb_copy_and_csum_bits()

Type Parameter Key Value
DATA_SOURCE 2 to $1
DATA_SOURCE 3 len $3
UNITS 0 skb unit_byte

net/sunrpc/socklib.c xdr_skb_read_bits() -> skb_copy_and_csum_bits()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
BUF_SIZE 2 to s32min-(-1),1-s32max
CAPPED_DATA 3 len 1
DATA_SOURCE 2 to $1
DATA_SOURCE 3 len $2 [m]
PREEMPT_ADD
RX_PATH
UNITS 2 to unit_byte
UNITS 3 len unit_byte
HALF_LOCKED2 &pool->lock
HALF_LOCKED2 &transport->recv_mutex
HALF_LOCKED2 bh

net/ipv6/ip6_output.c __ip6_append_data() -> skb_copy_and_csum_bits()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 0 skb->ip_summed 0-3
PARAM_VALUE 2 to 4096-ptr_max
PARAM_VALUE 3 len s32min-(-1),1-s32max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
FUZZY_MAX 0 skb->ip_summed 3
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 1 offset
UNITS 1 offset unit_byte
UNITS 2 to unit_byte
UNITS 3 len unit_byte

net/ipv6/icmp.c icmpv6_getfrag() -> skb_copy_and_csum_bits()

Type Parameter Key Value
DATA_SOURCE 2 to $1
DATA_SOURCE 3 len $3
UNITS 0 skb unit_byte

net/ipv4/ip_output.c __ip_append_data() -> skb_copy_and_csum_bits()

Type Parameter Key Value
PARAM_VALUE 0 skb 4096-ptr_max
PARAM_VALUE 3 len s32min-(-1),1-s32max
BUF_SIZE 0 skb (-1)-s32max
BUF_SIZE 0 skb (-1)-s32max
RX_PATH
TASK_NOT_RUNNING
NO_OVERFLOW_SIMPLE 1 offset
UNITS 1 offset unit_byte
UNITS 2 to unit_byte
UNITS 3 len unit_byte