Defined in 1 files as a function:
Referenced in 1 files:
Smatch caller information:
kernel/bpf/verifier.c prepare_func_exit() -> widen_imprecise_scalars()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | env | 4096-ptr_max |
| PARAM_VALUE | 0 | env->bt.frame | 0-2147483646 |
| PARAM_VALUE | 0 | env->cur_state | 4096-ptr_max |
| PARAM_VALUE | 0 | env->cur_state->curframe | 0-2147483645 |
| PARAM_VALUE | 0 | env->cur_state->dfs_depth | 1-u32max |
| PARAM_VALUE | 0 | env->cur_state->frame | 4096-ptr_max |
| PARAM_VALUE | 0 | env->insn_aux_data | 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->prog | 4096-ptr_max |
| PARAM_VALUE | 0 | *env->bt->reg_masks | 0-4294967295 |
| PARAM_VALUE | 0 | *env->bt->stack_arg_masks | 0-255 |
| PARAM_VALUE | 0 | *env->tmp_arg_name | 0-255 |
| PARAM_VALUE | 0 | *env->tmp_str_buf | 0-255 |
| PARAM_VALUE | 1 | old | 4096-ptr_max |
| PARAM_VALUE | 1 | old->branches | 1-u32max |
| PARAM_VALUE | 1 | old->dfs_depth | 0-4294967294 |
| PARAM_VALUE | 2 | cur | 4096-ptr_max |
| PARAM_VALUE | 2 | cur->curframe | 0-2147483645 |
| PARAM_VALUE | 2 | cur->dfs_depth | 1-u32max |
| PARAM_VALUE | 2 | cur->frame | 4096-ptr_max |
| BUF_SIZE | 1 | old | 232 |
| CAPPED_DATA | 1 | old->curframe | 1 |
| CAPPED_DATA | 1 | old->dfs_depth | 1 |
| CAPPED_DATA | 1 | old->insn_idx | 1 |
| DATA_SOURCE | 0 | env | $0 |
kernel/bpf/verifier.c process_iter_next_call() -> widen_imprecise_scalars()
| 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->cur_state->parent | 4096-ptr_max |
| PARAM_VALUE | 0 | env->cur_state->parent->dfs_depth | 1-u32max |
| PARAM_VALUE | 0 | env->head | 4096-ptr_max |
| PARAM_VALUE | 0 | env->insn_aux_data | 4096-ptr_max |
| PARAM_VALUE | 0 | env->insn_aux_data->btf_var.reg_type | 0,16,529,4112 |
| PARAM_VALUE | 0 | env->prog | 4096-ptr_max |
| PARAM_VALUE | 0 | env->prog->aux | 4096-ptr_max |
| PARAM_VALUE | 0 | env->prog->aux->kfunc_tab | 4096-ptr_max |
| PARAM_VALUE | 0 | env->stack_size | s32min-8192 |
| PARAM_VALUE | 0 | *env->tmp_str_buf | 0-255 |
| PARAM_VALUE | 1 | old | 4096-ptr_max |
| PARAM_VALUE | 1 | old->branches | 1-u32max |
| PARAM_VALUE | 1 | old->dfs_depth | 0-4294967294 |
| PARAM_VALUE | 2 | cur | 4096-ptr_max |
| PARAM_VALUE | 2 | cur->jmp_history | 1-u64max |
| PARAM_VALUE | 2 | cur->parent | 0,4096-ptr_max |
| PARAM_VALUE | 2 | cur->refs | 1-u64max |
| BUF_SIZE | 1 | old | 232 |
| BUF_SIZE | 2 | cur | 232 |
| CAPPED_DATA | 0 | env->cur_state->curframe | 1 |
| CAPPED_DATA | 1 | old->curframe | 1 |
| CAPPED_DATA | 1 | old->dfs_depth | 1 |
| CAPPED_DATA | 1 | old->insn_idx | 1 |
| DATA_SOURCE | 0 | env | $0 |
| DATA_SOURCE | 1 | old | r find_prev_entry |
| DATA_SOURCE | 2 | cur | r push_stack |
| NOCHECK_CALL | |||
| NO_OVERFLOW_SIMPLE | 2 | cur->st.jmp_history_cnt |