DepSurf

Function: extract_crng

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81566570)
  Location: drivers/char/random.c:887
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff81566570-ffffffff815665b1: extract_crng (STB_LOCAL)
  

• In 4.10: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81592cd0)
  Location: drivers/char/random.c:887
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff81592cd0-ffffffff81592d11: extract_crng (STB_LOCAL)
  

• In 4.13: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff815a7e90)
  Location: drivers/char/random.c:871
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff815a7e90-ffffffff815a7ed1: extract_crng (STB_LOCAL)
  

• In 4.15: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8160e790)
  Location: drivers/char/random.c:870
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff8160e790-ffffffff8160e7d1: extract_crng (STB_LOCAL)
  

• In 4.18: ✅

  void extract_crng(__u32 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816480f0)
  Location: drivers/char/random.c:979
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff816480f0-ffffffff81648131: extract_crng (STB_LOCAL)
  

• In 5.0: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81666590)
  Location: drivers/char/random.c:992
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff81666590-ffffffff816665d1: extract_crng (STB_LOCAL)
  

• In 5.3: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8169afa0)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff8169afa0-ffffffff8169afe1: extract_crng (STB_LOCAL)
  

• In 5.4: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816bdcd0)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff816bdcd0-ffffffff816bdd11: extract_crng (STB_LOCAL)
  

• In 5.8: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff817725bd)
  Location: drivers/char/random.c:1016
  Inline: True
  Inline callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:extract_crng_user
  

• In 5.11: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8178d62d)
  Location: drivers/char/random.c:1016
  Inline: True
  Inline callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:extract_crng_user
  

• In 5.13: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff817705de)
  Location: drivers/char/random.c:1006
  Inline: True
  Inline callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:extract_crng_user
  

• In 5.15: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff817f6076)
  Location: drivers/char/random.c:1042
  Inline: True
  Inline callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

• In 5.19: Absent ⚠️
• In 6.2: Absent ⚠️
• In 6.5: Absent ⚠️
• In 6.8: Absent ⚠️

Arch

• In arm64: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffff8000108afb48)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffff8000108afb48-ffff8000108afbc8: extract_crng (STB_LOCAL)
  

• In armhf: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (c09aa7a8)
  Location: drivers/char/random.c:1069
  Inline: True
  Inline callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

• In ppc64el: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (c000000000947d80)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  c000000000947d80-c000000000947df0: extract_crng (STB_LOCAL)
  

• In riscv64: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffe000562486)
  Location: drivers/char/random.c:1069
  Inline: True
  Inline callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

Flavor

• In aws: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81683740)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff81683740-ffffffff81683781: extract_crng (STB_LOCAL)
  

• In azure: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816613c0)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff816613c0-ffffffff81661401: extract_crng (STB_LOCAL)
  

• In gcp: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816b1b10)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff816b1b10-ffffffff816b1b51: extract_crng (STB_LOCAL)
  

• In lowlatency: ✅

  void extract_crng(__u8 *out);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816cbfb0)
  Location: drivers/char/random.c:1069
  Inline: False
  Direct callers:
    - drivers/char/random.c:get_random_u32
    - drivers/char/random.c:get_random_u64
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_crng_backtrack_protect
  

  Symbols:

  ffffffff816cbfb0-ffffffff816cbff1: extract_crng (STB_LOCAL)
  

Differences

Regular

• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• Changed between 4.15 and 4.18 ⚠️

  • Param type changed. __u8 *out ➡️ __u32 *out
• Changed between 4.18 and 5.0 ⚠️

  • Param type changed. __u32 *out ➡️ __u8 *out
• No changes between 5.0 and 5.3 ✅
• No changes between 5.3 and 5.4 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and ppc64el ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅