diff options
| author | Jakob Unterwurzacher | 2016-10-28 20:05:57 +0200 |
|---|---|---|
| committer | Jakob Unterwurzacher | 2016-10-28 21:18:36 +0200 |
| commit | 012152f3d1f111541f2fbb4c1e65c91243cd6bde (patch) | |
| tree | 453a9eb72bec16575f0dc5c8a8b45fa52d1107ca /internal/contentenc | |
| parent | 4cc64c2c9579283da6a997c425e986dfe014c56d (diff) | |
fusefrontend: I/O error instead of panic on all-zero nonce
Running xfstests generic/075 on tmpfs often triggered a panic
for what seems to be a tmpfs bug.
Quoting from the email to lkml,
http://www.spinics.net/lists/kernel/msg2370127.html :
tmpfs seems to be incorrectly returning 0-bytes when reading from
a file that is concurrently being truncated.
Diffstat (limited to 'internal/contentenc')
| -rw-r--r-- | internal/contentenc/content.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/internal/contentenc/content.go b/internal/contentenc/content.go index dd3b77a..c42a844 100644 --- a/internal/contentenc/content.go +++ b/internal/contentenc/content.go @@ -113,7 +113,10 @@ func (be *ContentEnc) DecryptBlock(ciphertext []byte, blockNo uint64, fileID []b // Extract nonce nonce := ciphertext[:be.cryptoCore.IVLen] if bytes.Equal(nonce, be.allZeroNonce) { - panic("Hit an all-zero nonce. This MUST NOT happen!") + // Bug in tmpfs? + // https://github.com/rfjakob/gocryptfs/issues/56 + // http://www.spinics.net/lists/kernel/msg2370127.html + return nil, errors.New("all-zero nonce") } ciphertextOrig := ciphertext ciphertext = ciphertext[be.cryptoCore.IVLen:] |