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chromium / chromiumos / platform / pinweaver / 2d924525c86c9caea9f4aa8ffe86dd85c02946e1
commit2d924525c86c9caea9f4aa8ffe86dd85c02946e1[log] [tgz]
authorYi Chou <yich@google.com>Wed Aug 23 04:22:54 2023
committerChromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Aug 23 09:09:33 2023
tree9190974e8dad02c2cf47b2b0d11da5513e6b33d0
parente6059827113f3b25037006d4062061712e5ca800 [diff]
pinweaver: Fix the null argument UB in fuzzed ecdh

BUG=b:297056262
TEST=CQ

Change-Id: I2625902caa27233410fc4c65fd2133b38f319e70
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/pinweaver/+/4805584
Reviewed-by: Howard Yang <hcyang@google.com>
Tested-by: Yi Chou <yich@google.com>
Commit-Queue: Yi Chou <yich@google.com>
1 file changed
tree: 9190974e8dad02c2cf47b2b0d11da5513e6b33d0
  1. eal/
  2. fuzzer/
  3. BUILD.gn
  4. DIR_METADATA
  5. LICENSE
  6. OWNERS
  7. pinweaver.c
  8. pinweaver.h
  9. pinweaver_eal.h
  10. pinweaver_types.h
  11. PRESUBMIT.cfg
  12. README.md
README.md

Common PinWeaver Code

This directory contains reference PinWeaver code that can be used across implementation platforms.

It consists of:

  • PinWeaver reference code:
    • pinweaver.h - PinWeaver embedded API definition
    • pinweaver.c - implementation
    • pinweaver_eal.h - API for Environment Abstraction Layer (EAL) used by PinWeaver
      • note that some types used in this API are platform-specific and are defined in eal/**/pinweaver_eal_types.h
    • pinweaver_types.h - header that is shared by PinWeaver implementation and PinWeaver clients that call it through platform-specific interface.
  • Environment Abstraction Layer (EAL) implementations - in eal/ folder
    • eal/cr50 - implementation for cr50
      • pinweaver_eal_types.h - cr50-specific EAL API types
      • pinweaver_eal.c - cr50 implementation of EAL
    • eal/tpm_storage - implementation for platforms that use TPM as PinWeaver data storage
      • pinweaver_eal_types.h - TPM-storage-specific EAL API types
      • pinweaver_eal_tpm.h - additional EAL functions required by TPM storage
      • pinweaver_eal_linux.c - implementation of non-storage EAL methods for Linux case
      • tpm_storage_stubs.c - empty implementation of storage EAL methods
      • tpm_storage.c - implementation of storage EAL methods on top of TSS
      • mini_trunks/ - mini-TSS (TPM client software stack) used by TPM storage implementation
        • created from trunks TSS used by ChromeOS reduced to the minimal required set of TPM commands and ported from C++ to C
        • relies on pinweaver_eal.h + pinweaver_eal_tpm.h EAL methods
        • TSS API is defined in tss.h + *authorization_delegate.h

A platform implementation that uses TPM storage EAL option needs to implement all EAL methods implemented in pinweaver_eal_linux.c (or use it as-is, if Linux compatible).