skb_pfmemalloc identifier - Linux source code next-20260811

Projects

linux

Versions

FIXME
- FIXME
  - next-20260811

Documented in 1 files:

include/linux/skbuff.h, line 1135

Defined in 1 files as a function:

include/linux/skbuff.h, line 1139 (as a function)

Referenced in 5 files:

Smatch caller information:

net/ipv4/tcp_ipv4.c sk_add_backlog() -> skb_pfmemalloc()

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
HOST_DATA	0	skb->csum	0-4294967040[c]
HOST_DATA	0	skb->csum_offset	0-u16max
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->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->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		&sk->sk_lock.slock
TYPE_LOCK		(struct socket_lock_t)->slock

net/kcm/kcmsock.c sk_rmem_schedule() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	(-1)-0,240
BUF_SIZE	0	skb	(-1)-0,240
DATA_SOURCE	0	skb	$1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&mux->rx_lock
HALF_LOCKED2		bh

net/sctp/ulpqueue.c sk_rmem_schedule() -> skb_pfmemalloc()

Type	Parameter	Key	Value
DATA_SOURCE	0	skb	$1
UNITS	0	skb	unit_byte

net/x25/x25_dev.c sk_add_backlog() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	0-s32max
BUF_SIZE	0	skb	0-s32max
DATA_SOURCE	0	skb	$1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
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->tstamp	500000002-4294967299794967295[c]
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->end
NO_OVERFLOW_SIMPLE	0	skb->next->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		&sk->sk_lock.slock
HALF_LOCKED2		rcu_read
TYPE_LOCK		(struct socket_lock_t)->slock

net/core/skbuff.c pskb_carve_inside_header() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	(-1),240
BUF_SIZE	0	skb	(-1),240
DATA_SOURCE	0	skb	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	skb	unit_byte

net/core/skbuff.c pskb_carve_inside_nonlinear() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	(-1),240
BUF_SIZE	0	skb	(-1),240
DATA_SOURCE	0	skb	$0
RX_PATH
TASK_NOT_RUNNING
UNITS	0	skb	unit_byte

net/core/skbuff.c pskb_expand_head() -> skb_pfmemalloc()

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

net/core/skbuff.c skb_alloc_rx_flag() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb	(-1)-s32max
BUF_SIZE	0	skb->dev	s32min-(-1),1-s32max
DATA_SOURCE	0	skb	$0
STR_LEN	0	skb->sk	(-1)
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967040[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->next->prev->data_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->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->extensions
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->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

net/core/skbuff.c skb_clone() -> skb_pfmemalloc()

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

net/core/skmsg.c sk_rmem_schedule() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
DATA_SOURCE	0	skb	$1
LOCK2		&pool->lock
LOCK2		&psock->work_mutex
TYPE_LOCK		(struct sk_psock)->work_mutex

net/core/filter.c sk_filter_trim_cap() -> skb_pfmemalloc()

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
STR_LEN	0	skb->sk	(-1)
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967041[c]
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	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->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->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->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
HALF_LOCKED2		&conn->lock
HALF_LOCKED2		rcu_read

net/tipc/socket.c sk_add_backlog() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
DATA_SOURCE	0	skb	$1
RX_PATH
TASK_NOT_RUNNING
LOCK2		&sk->sk_lock.slock
LOCK2		bh
HALF_LOCKED2		&n->lock
HALF_LOCKED2		&pool->lock
HALF_LOCKED2		rcu_read
TYPE_LOCK		(struct socket_lock_t)->slock

net/sctp/ulpevent.c sk_rmem_schedule() -> skb_pfmemalloc()

Type	Parameter	Key	Value
DATA_SOURCE	0	skb	$1
UNITS	0	skb	unit_byte

net/ipv4/tcp_input.c sk_rmem_schedule() -> skb_pfmemalloc()

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->data_len	1
DATA_SOURCE	0	skb	$1
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967040[c]
HOST_DATA	0	skb->csum_offset	0-u16max
HOST_DATA	0	skb->data_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->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->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
UNITS	0	skb	unit_byte
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

net/xfrm/espintcp.c sk_rmem_schedule() -> skb_pfmemalloc()

Type	Key	Value
PARAM_VALUE	skb	4096-ptr_max
BUF_SIZE	skb	(-1)-0,240
BUF_SIZE	skb	(-1)-0,240
DATA_SOURCE	skb	$1

net/core/sock.c sk_add_backlog() -> skb_pfmemalloc()

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
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967041[c]
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->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->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->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		&sk->sk_lock.slock
HALF_LOCKED2		bh
HALF_LOCKED2		rcu_read
TYPE_LOCK		(struct socket_lock_t)->slock

net/core/sock.c sk_backlog_rcv() -> skb_pfmemalloc()

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
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967041[c]
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->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->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->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
HALF_LOCKED2		&sk->sk_lock.slock

net/core/sock.c sk_rmem_schedule() -> skb_pfmemalloc()

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
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-126976[c]
HOST_DATA	0	skb->csum_offset	0-u16max
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->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->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->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
HALF_LOCKED2		&conn->lock
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

net/sctp/input.c sk_add_backlog() -> skb_pfmemalloc()

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
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HOST_DATA	0	skb->csum	0-4294967041[c]
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->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->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->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
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		bh

net/llc/llc_conn.c sk_add_backlog() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
CAPPED_DATA	0	skb->dev->nd_net.net	1
DATA_SOURCE	0	skb	$1
BIT_INFO	0	skb->destructor	0x1110384244084000,0xffffffffffffffff
PREEMPT_ADD
LOCK2		&sk->sk_lock.slock
TYPE_LOCK		(struct socket_lock_t)->slock

net/ipv6/tcp_ipv6.c sk_rmem_schedule() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
BUF_SIZE	0	skb	(-1),240
BUF_SIZE	0	skb	(-1),240
DATA_SOURCE	0	skb	$1
RX_PATH
TASK_NOT_RUNNING
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->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->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->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
HALF_LOCKED2		&sk->sk_lock.slock
HALF_LOCKED2		sk

net/core/dev.c __netif_receive_skb() -> skb_pfmemalloc()

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	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
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->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->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_napi_configs
NO_OVERFLOW_SIMPLE	0	skb->dev->num_rx_queues
NO_OVERFLOW_SIMPLE	0	skb->dev->num_tc
NO_OVERFLOW_SIMPLE	0	skb->dev->num_tx_queues
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

net/core/dev.c __netif_receive_skb_list() -> skb_pfmemalloc()

Type	Parameter	Key	Value
PARAM_VALUE	0	skb	4096-ptr_max
CAPPED_DATA	0	&skb->list	1
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
LOCK2		rcu_read
HALF_LOCKED2		bh