DepSurf

Function: map_kptr_match_type

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: Absent ⚠️
• In 4.10: Absent ⚠️
• In 4.13: Absent ⚠️
• In 4.15: Absent ⚠️
• In 4.18: Absent ⚠️
• In 5.0: Absent ⚠️
• In 5.3: Absent ⚠️
• In 5.4: Absent ⚠️
• In 5.8: Absent ⚠️
• In 5.11: Absent ⚠️
• In 5.13: Absent ⚠️
• In 5.15: Absent ⚠️
• In 5.19: ✅

  int map_kptr_match_type(struct bpf_verifier_env *env, struct bpf_map_value_off_desc *off_desc, struct bpf_reg_state *reg, u32 regno);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In kernel/bpf/verifier.c (ffffffff81285020)
  Location: kernel/bpf/verifier.c:3653
  Inline: False
  Direct callers:
    - kernel/bpf/verifier.c:check_reg_type
    - kernel/bpf/verifier.c:check_mem_access
  

  Symbols:

  ffffffff81285020-ffffffff812852a5: map_kptr_match_type (STB_LOCAL)
  

• In 6.2: ✅

  int map_kptr_match_type(struct bpf_verifier_env *env, struct btf_field *kptr_field, struct bpf_reg_state *reg, u32 regno);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In kernel/bpf/verifier.c (ffffffff812d72b0)
  Location: kernel/bpf/verifier.c:4095
  Inline: False
  Direct callers:
    - kernel/bpf/verifier.c:check_reg_type
    - kernel/bpf/verifier.c:check_mem_access
  

  Symbols:

  ffffffff812d72b0-ffffffff812d7474: map_kptr_match_type (STB_LOCAL)
  

• In 6.5: ✅

  int map_kptr_match_type(struct bpf_verifier_env *env, struct btf_field *kptr_field, struct bpf_reg_state *reg, u32 regno);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In kernel/bpf/verifier.c (ffffffff81300bd0)
  Location: kernel/bpf/verifier.c:4980
  Inline: False
  Direct callers:
    - kernel/bpf/verifier.c:check_reg_type
  

  Symbols:

  ffffffff81300bd0-ffffffff81300d83: map_kptr_match_type (STB_LOCAL)
  

• In 6.8: ✅

  int map_kptr_match_type(struct bpf_verifier_env *env, struct btf_field *kptr_field, struct bpf_reg_state *reg, u32 regno);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In kernel/bpf/verifier.c (ffffffff8131e6f0)
  Location: kernel/bpf/verifier.c:5138
  Inline: False
  Direct callers:
    - kernel/bpf/verifier.c:check_reg_type
  

  Symbols:

  ffffffff8131e6f0-ffffffff8131e8b7: map_kptr_match_type (STB_LOCAL)
  

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: Absent ⚠️
• In azure: Absent ⚠️
• In gcp: Absent ⚠️
• In lowlatency: Absent ⚠️

Differences

Regular

• Changed between 5.19 and 6.2 ⚠️

  • Param added. struct btf_field *kptr_field
  • Param removed. struct bpf_map_value_off_desc *off_desc
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅