DepSurf

Function: fscrypt_hkdf_expand

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: Transformation ⚠️

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffffffff8134bb73-ffffffff8134bb7f: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff8134b830-ffffffff8134bb22: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 5.8: Transformation ⚠️

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:111
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_iv_ino_lblk_32_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff813914b7-ffffffff813914c3: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff81391180-ffffffff81391477: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 5.11: Transformation ⚠️

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:111
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_iv_ino_lblk_32_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff81beae06-ffffffff81beae12: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff813a25e0-ffffffff813a28d7: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 5.13: Transformation ⚠️

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:111
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff81bdce53-ffffffff81bdce5f: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff813a9760-ffffffff813a9a61: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 5.15: Transformation ⚠️

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:116
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff81cc640e-ffffffff81cc641a: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff813f8fa0-ffffffff813f92a1: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 5.19: ✅

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (ffffffff8146bd60)
  Location: fs/crypto/hkdf.c:116
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_get_test_dummy_key_identifier
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff8146bd60-ffffffff8146c0cb: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 6.2: ✅

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (ffffffff814fd090)
  Location: fs/crypto/hkdf.c:116
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_get_test_dummy_key_identifier
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff814fd090-ffffffff814fd3fb: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 6.5: ✅

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (ffffffff815345f0)
  Location: fs/crypto/hkdf.c:116
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_get_test_dummy_key_identifier
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff815345f0-ffffffff8153495e: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In 6.8: ✅

  int fscrypt_hkdf_expand(const struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (ffffffff815695b0)
  Location: fs/crypto/hkdf.c:116
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_get_test_dummy_key_identifier
    - fs/crypto/keyring.c:add_master_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_enc_key
  

  Symbols:

  ffffffff815695b0-ffffffff8156991e: fscrypt_hkdf_expand (STB_GLOBAL)
  

Arch

• In arm64: ✅

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (ffff80001040c2c8)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffff80001040c2c8-ffff80001040c510: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In armhf: ✅

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (c05d93d0)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  c05d93d0-c05d9638: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In ppc64el: ✅

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (c000000000519240)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  c000000000519240-c000000000519568: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In riscv64: ✅

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In fs/crypto/hkdf.c (ffffffe0002b5bec)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffffffe0002b5bec-ffffffe0002b5dd0: fscrypt_hkdf_expand (STB_GLOBAL)
  

Flavor

• In aws: Transformation ⚠️

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffffffff81344153-ffffffff8134415f: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff81343e10-ffffffff81344102: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In azure: Transformation ⚠️

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffffffff81334e33-ffffffff81334e3f: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff81334af0-ffffffff81334de2: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In gcp: Transformation ⚠️

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffffffff81341c23-ffffffff81341c2f: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff813418e0-ffffffff81341bd2: fscrypt_hkdf_expand (STB_GLOBAL)
  

• In lowlatency: Transformation ⚠️

  int fscrypt_hkdf_expand(struct fscrypt_hkdf *hkdf, u8 context, const u8 *info, unsigned int infolen, u8 *okm, unsigned int okmlen);
  

  Collision: Unique Global

  Inline: No

  Transformation: True

  Instances:

  In fs/crypto/hkdf.c (0)
  Location: fs/crypto/hkdf.c:115
  Inline: False
  Direct callers:
    - fs/crypto/keyring.c:fscrypt_ioctl_add_key
    - fs/crypto/keysetup.c:fscrypt_setup_v2_file_key
    - fs/crypto/keysetup.c:setup_per_mode_key
  

  Symbols:

  ffffffff81354f23-ffffffff81354f2f: fscrypt_hkdf_expand.cold (STB_LOCAL)
  ffffffff81354be0-ffffffff81354ed2: fscrypt_hkdf_expand (STB_GLOBAL)
  

Differences

Regular

• Changed between 5.4 and 5.8 ⚠️

  • Param type changed. struct fscrypt_hkdf *hkdf ➡️ const struct fscrypt_hkdf *hkdf
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

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 ✅