fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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jsteemann 313e877285 fix reading encrypted files beyond file boundaries (#5160) ... Summary: This fix should help reading from encrypted files if the file-to-be-read is smaller than expected. For example, when using the encrypted env and making it read a journal file of exactly 0 bytes size, the encrypted env code crashes with SIGSEGV in its Decrypt function, as there is no check if the read attempts to read over the file's boundaries (as specified originally by the `dataSize` parameter). The most important problem this patch addresses is however that there is no size underlow check in `CTREncryptionProvider::CreateCipherStream`: The stream to be read will be initialized to a size of always `prefix.size() - (2 * blockSize)`. If the prefix however is smaller than twice the block size, this will obviously assume a _very_ large stream and read over the bounds. The patch adds a check here as follows: // If the prefix is smaller than twice the block size, we would below read a // very large chunk of the file (and very likely read over the bounds) assert(prefix.size() >= 2 * blockSize); if (prefix.size() < 2 * blockSize) { return Status::Corruption("Unable to read from file " + fname + ": read attempt would read beyond file bounds"); } so embedders can catch the error in their release builds. Pull Request resolved: https://github.com/facebook/rocksdb/pull/5160 Differential Revision: D14834633 Pulled By: sagar0 fbshipit-source-id: 47aa39a6db8977252cede054c7eb9a663b9a3484		6 years ago
..
env.cc	Collect compaction stats by priority and dump to info LOG (#5050)	6 years ago
env_basic_test.cc	Apply modernize-use-override (3)	6 years ago
env_chroot.cc	Apply modernize-use-override (3)	6 years ago
env_chroot.h	Change RocksDB License	7 years ago
env_encryption.cc	fix reading encrypted files beyond file boundaries (#5160)	6 years ago
env_hdfs.cc	Fix db_stress for custom env (#5122)	6 years ago
env_posix.cc	Apply modernize-use-override (3)	6 years ago
env_test.cc	Apply modernize-use-override (3)	6 years ago
io_posix.cc	remove incorrect assert in `GetUniqueIdFromFile` (#5102)	6 years ago
io_posix.h	Support for single-primary, multi-secondary instances (#4899)	6 years ago
mock_env.cc	Apply modernize-use-override (3)	6 years ago
mock_env.h	Update all unique/shared_ptr instances to be qualified with namespace std (#4638)	6 years ago
mock_env_test.cc	Apply modernize-use-override (3)	6 years ago
posix_logger.h	Auto recovery from out of space errors (#4164)	6 years ago