DepSurf

Function: crng_backtrack_protect

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81567930)
  Location: drivers/char/random.c:924
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

  Symbols:

  ffffffff81567930-ffffffff81567976: crng_backtrack_protect (STB_LOCAL)
  

• In 4.10: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81594060)
  Location: drivers/char/random.c:924
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

  Symbols:

  ffffffff81594060-ffffffff815940a6: crng_backtrack_protect (STB_LOCAL)
  

• In 4.13: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff815a7f60)
  Location: drivers/char/random.c:908
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff815a7f60-ffffffff815a7fa6: crng_backtrack_protect (STB_LOCAL)
  

• In 4.15: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8160e860)
  Location: drivers/char/random.c:907
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff8160e860-ffffffff8160e8a6: crng_backtrack_protect (STB_LOCAL)
  

• In 4.18: ✅

  void crng_backtrack_protect(__u32 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816481b0)
  Location: drivers/char/random.c:1016
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff816481b0-ffffffff816481f6: crng_backtrack_protect (STB_LOCAL)
  

• In 5.0: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81666650)
  Location: drivers/char/random.c:1029
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff81666650-ffffffff81666696: crng_backtrack_protect (STB_LOCAL)
  

• In 5.3: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8169c390)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff8169c390-ffffffff8169c3d6: crng_backtrack_protect (STB_LOCAL)
  

• In 5.4: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816bf100)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff816bf100-ffffffff816bf146: crng_backtrack_protect (STB_LOCAL)
  

• In 5.8: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff817734ad)
  Location: drivers/char/random.c:1053
  Inline: True
  Inline callers:
    - 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 (ffffffff8178e47d)
  Location: drivers/char/random.c:1053
  Inline: True
  Inline callers:
    - 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 (ffffffff81770ced)
  Location: drivers/char/random.c:1043
  Inline: True
  Inline callers:
    - 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 (ffffffff817f67fc)
  Location: drivers/char/random.c:1071
  Inline: True
  Inline callers:
    - 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 crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffff8000108afcc8)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffff8000108afcc8-ffff8000108afd54: crng_backtrack_protect (STB_LOCAL)
  

• In armhf: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (c09aa578)
  Location: drivers/char/random.c:1106
  Inline: True
  Inline callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

• In ppc64el: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (c000000000947ec0)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  c000000000947ec0-c000000000947f34: crng_backtrack_protect (STB_LOCAL)
  

• In riscv64: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffe00056228c)
  Location: drivers/char/random.c:1106
  Inline: True
  Inline callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

Flavor

• In aws: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81684b50)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff81684b50-ffffffff81684b96: crng_backtrack_protect (STB_LOCAL)
  

• In azure: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816627f0)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff816627f0-ffffffff81662836: crng_backtrack_protect (STB_LOCAL)
  

• In gcp: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816b2f40)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff816b2f40-ffffffff816b2f86: crng_backtrack_protect (STB_LOCAL)
  

• In lowlatency: ✅

  void crng_backtrack_protect(__u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816cd4a0)
  Location: drivers/char/random.c:1106
  Inline: False
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff816cd4a0-ffffffff816cd4e6: crng_backtrack_protect (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 *tmp ➡️ __u32 *tmp
• Changed between 4.18 and 5.0 ⚠️

  • Param type changed. __u32 *tmp ➡️ __u8 *tmp
• 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 ✅