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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:

kernel/bpf/verifier.c adjust_ptr_min_max_vals() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->cur_state->frame 4096-ptr_max
PARAM_VALUE 0 env->insn_aux_data->btf_var.reg_type 0,16,529,4112
PARAM_VALUE 0 env->prog->insnsi 4096-ptr_max
PARAM_VALUE 0 *env->tmp_str_buf 0-255
PARAM_VALUE 1 reg 4096-ptr_max
DATA_SOURCE 0 env $0
NOCHECK_CALL

kernel/bpf/verifier.c adjust_ptr_min_max_vals() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->allow_ptr_leaks 1
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->cur_state->frame 4096-ptr_max
PARAM_VALUE 0 env->insn_aux_data->btf_var.reg_type 0,16,529,4112
PARAM_VALUE 0 env->prog->insnsi 4096-ptr_max
PARAM_VALUE 0 *env->tmp_str_buf 0-255
PARAM_VALUE 1 reg 4096-ptr_max
DATA_SOURCE 0 env $0
NOCHECK_CALL

kernel/bpf/verifier.c adjust_scalar_min_max_vals() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->insn_aux_data->btf_var.reg_type 0,16,529,4112
PARAM_VALUE 0 env->prog->insnsi 4096-ptr_max
PARAM_VALUE 1 reg 4096-ptr_max
PARAM_VALUE 1 reg->type 1
DATA_SOURCE 0 env $0
DATA_SOURCE 1 reg $2
NOCHECK_CALL

kernel/bpf/verifier.c bpf_mark_reg_not_init() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->insn_aux_data->btf_var.reg_type 0,16,529,4112
PARAM_VALUE 0 env->ops->gen_ld_abs 0,4096-ptr_max
PARAM_VALUE 0 *env->bt.reg_masks 0-4294967295
PARAM_VALUE 0 *env->tmp_arg_name 0-255
PARAM_VALUE 0 *env->tmp_str_buf 0-255
BUF_SIZE 0 env->cur_state (-1),232
BUF_SIZE 0 env->head (-1),256
BUF_SIZE 1 reg (-1),80,480,560,640,880
BUF_SIZE 1 reg (-1),80,480,560,640,880
DATA_SOURCE 0 env $0
DATA_SOURCE 1 reg $1
STR_LEN 0 env (-1)
STR_LEN 0 env (-1)
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 env->cur_state->jmp_history_cnt

kernel/bpf/verifier.c check_ld_imm() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->used_maps 4096-ptr_max
PARAM_VALUE 1 reg 4096-ptr_max
DATA_SOURCE 0 env $0
NOCHECK_CALL

kernel/bpf/verifier.c check_stack_range_initialized() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->bypass_spec_v1 1
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->insn_aux_data->btf_var.reg_type 0,16,529,4112
PARAM_VALUE 0 env->ops->gen_ld_abs 0,4096-ptr_max
PARAM_VALUE 1 reg 4096-ptr_max
DATA_SOURCE 0 env $0
STR_LEN 0 env (-1),11
STR_LEN 0 env (-1),11
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 env->cur_state->jmp_history_cnt

kernel/bpf/verifier.c mark_reg_invalid() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->allow_ptr_leaks 1
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->ops->gen_ld_abs 0,4096-ptr_max
PARAM_VALUE 0 *env->log.kbuf 0-255
PARAM_VALUE 0 *env->tmp_arg_name 0-255
PARAM_VALUE 0 *env->tmp_str_buf 0-255
PARAM_VALUE 1 reg 4096-ptr_max
BUF_SIZE 1 reg (-1),80
BUF_SIZE 1 reg (-1),80
DATA_SOURCE 0 env $0
DATA_SOURCE 1 reg $1
STR_LEN 0 env (-1)
STR_LEN 0 env (-1)
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 env->cur_state->jmp_history_cnt

kernel/bpf/verifier.c mark_reg_unknown() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->insn_aux_data->btf_var.reg_type 0,16,529,4112
PARAM_VALUE 0 env->ops->btf_struct_access 0,109229580818747392,1844169638972944384,1972137615492878336,2503603943122952192,5286233595241070592
PARAM_VALUE 0 env->ops->gen_ld_abs 0,4096-ptr_max
PARAM_VALUE 0 *env->tmp_str_buf 0-255
PARAM_VALUE 1 reg 4096-ptr_max
BUF_SIZE 0 env->cur_state (-1),232
DATA_SOURCE 0 env $0
STR_LEN 0 env (-1),2-3,11
STR_LEN 0 env (-1),2-3,11
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 env->cur_state->jmp_history_cnt

kernel/bpf/verifier.c maybe_widen_reg() -> __mark_reg_unknown()

Type Parameter Key Value
PARAM_VALUE 0 env 4096-ptr_max
PARAM_VALUE 0 env->cur_state 4096-ptr_max
PARAM_VALUE 0 env->cur_state->curframe 0-2147483646
PARAM_VALUE 0 env->cur_state->frame 4096-ptr_max
PARAM_VALUE 0 env->ops->gen_ld_abs 0,4096-ptr_max
PARAM_VALUE 0 env->prog 4096-ptr_max
PARAM_VALUE 1 reg 4096-ptr_max
PARAM_VALUE 1 reg->precise 0
PARAM_VALUE 1 reg->type 1
CAPPED_DATA 0 env->cur_state->curframe 1
DATA_SOURCE 0 env $0
DATA_SOURCE 1 reg $2
NOCHECK_CALL
NO_OVERFLOW_SIMPLE 0 env->cur_state->jmp_history_cnt