DepSurf

Function: _crng_backtrack_protect

Status

Regular

• In 4.4: Absent ⚠️
• In 4.8: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff815665c0)
  Location: drivers/char/random.c:904
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff815665c0-ffffffff81566638: _crng_backtrack_protect (STB_LOCAL)
  

• In 4.10: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81592d20)
  Location: drivers/char/random.c:904
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff81592d20-ffffffff81592d98: _crng_backtrack_protect (STB_LOCAL)
  

• In 4.13: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff815a7ee0)
  Location: drivers/char/random.c:888
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff815a7ee0-ffffffff815a7f51: _crng_backtrack_protect (STB_LOCAL)
  

• In 4.15: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8160e7e0)
  Location: drivers/char/random.c:887
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff8160e7e0-ffffffff8160e851: _crng_backtrack_protect (STB_LOCAL)
  

• In 4.18: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u32 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81648140)
  Location: drivers/char/random.c:996
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff81648140-ffffffff816481a7: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.0: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816665e0)
  Location: drivers/char/random.c:1009
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff816665e0-ffffffff81666647: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.3: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8169aff0)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff8169aff0-ffffffff8169b057: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.4: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816bdd20)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff816bdd20-ffffffff816bdd87: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.8: Selective Inline ⚠️

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: Selective

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff817735b3)
  Location: drivers/char/random.c:1033
  Inline: True
  Inline callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:crng_reseed
  Direct callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:extract_crng_user
  

  Symbols:

  ffffffff81772d30-ffffffff81772dc5: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.11: Selective Inline ⚠️

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: Selective

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff8178e56e)
  Location: drivers/char/random.c:1033
  Inline: True
  Inline callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:crng_reseed
  Direct callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:extract_crng_user
  

  Symbols:

  ffffffff8178dd20-ffffffff8178ddb5: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.13: Selective Inline ⚠️

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: Selective

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81770ddd)
  Location: drivers/char/random.c:1023
  Inline: True
  Inline callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:crng_reseed
  Direct callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:extract_crng_user
  

  Symbols:

  ffffffff817706d0-ffffffff81770765: _crng_backtrack_protect (STB_LOCAL)
  

• In 5.15: Selective Inline ⚠️

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: Selective

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff817f68eb)
  Location: drivers/char/random.c:1051
  Inline: True
  Inline callers:
    - drivers/char/random.c:_get_random_bytes
    - drivers/char/random.c:crng_reseed
  Direct callers:
    - drivers/char/random.c:_get_random_bytes
  

  Symbols:

  ffffffff817f60d0-ffffffff817f6165: _crng_backtrack_protect (STB_LOCAL)
  

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

Arch

• In arm64: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffff8000108afbc8)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffff8000108afbc8-ffff8000108afcc4: _crng_backtrack_protect (STB_LOCAL)
  

• In armhf: Selective Inline, Transformation ⚠️

  Collision: Unique Static

  Inline: Selective

  Transformation: True

  Instances:

  In drivers/char/random.c (c09aa364)
  Location: drivers/char/random.c:1086
  Inline: True
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

  Symbols:

  c09aa364-c09aa3e0: _crng_backtrack_protect.constprop.0 (STB_LOCAL)
  

• In ppc64el: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (c000000000947df0)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  c000000000947df0-c000000000947ebc: _crng_backtrack_protect (STB_LOCAL)
  

• In riscv64: Selective Inline, Transformation ⚠️

  Collision: Unique Static

  Inline: Selective

  Transformation: True

  Instances:

  In drivers/char/random.c (ffffffe000562148)
  Location: drivers/char/random.c:1086
  Inline: True
  Direct callers:
    - drivers/char/random.c:urandom_read
    - drivers/char/random.c:get_random_bytes
    - drivers/char/random.c:get_random_bytes
  

  Symbols:

  ffffffe000562148-ffffffe0005621d4: _crng_backtrack_protect.constprop.0 (STB_LOCAL)
  

Flavor

• In aws: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81683790)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff81683790-ffffffff816837f7: _crng_backtrack_protect (STB_LOCAL)
  

• In azure: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff81661410)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff81661410-ffffffff81661477: _crng_backtrack_protect (STB_LOCAL)
  

• In gcp: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816b1b60)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff816b1b60-ffffffff816b1bc7: _crng_backtrack_protect (STB_LOCAL)
  

• In lowlatency: ✅

  void _crng_backtrack_protect(struct crng_state *crng, __u8 *tmp, int used);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In drivers/char/random.c (ffffffff816cc000)
  Location: drivers/char/random.c:1086
  Inline: False
  Direct callers:
    - drivers/char/random.c:crng_backtrack_protect
    - drivers/char/random.c:crng_reseed
  

  Symbols:

  ffffffff816cc000-ffffffff816cc067: _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 ✅
• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅

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 ✅