diff options
| author | Jakob Unterwurzacher | 2017-10-17 21:47:32 +0200 |
|---|---|---|
| committer | Jakob Unterwurzacher | 2017-10-17 21:48:29 +0200 |
| commit | 3009ec9852316c3c696f77f476390ab5a6d8d6d7 (patch) | |
| tree | e64b84f0cdda14b32fe986918aeae7f7be465a4d /internal/contentenc | |
| parent | 64e5906ffa1f225a51048b3d0ac6b1a09e2ca170 (diff) | |
fusefrontend: clamp oversized reads
Our byte cache pools are sized acc. to MAX_KERNEL_WRITE, but the
running kernel may have a higher limit set. Clamp to what we can
handle.
Fixes a panic on a Synology NAS reported at
https://github.com/rfjakob/gocryptfs/issues/145
Diffstat (limited to 'internal/contentenc')
| -rw-r--r-- | internal/contentenc/content.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/internal/contentenc/content.go b/internal/contentenc/content.go index f48080f..e6f79a6 100644 --- a/internal/contentenc/content.go +++ b/internal/contentenc/content.go @@ -194,6 +194,8 @@ func (be *ContentEnc) DecryptBlock(ciphertext []byte, blockNo uint64, fileID []b const encryptMaxSplit = 2 // EncryptBlocks is like EncryptBlock but takes multiple plaintext blocks. +// Returns a byte slice from CReqPool - so don't forget to return it +// to the pool. func (be *ContentEnc) EncryptBlocks(plaintextBlocks [][]byte, firstBlockNo uint64, fileID []byte) []byte { ciphertextBlocks := make([][]byte, len(plaintextBlocks)) // For large writes, we parallelize encryption. |