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| author |   Theodore Ts'o <tytso@mit.edu> | 2015-05-31 13:35:39 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2015-05-31 13:35:39 -0400 |
| commit | abdd438b26b409eaccf9c847fcf9c3ab52f1959e (patch) | |
| tree | 4473a3667ab265065f0ce81b49d76e8c095b19d2 /fs/ext4/crypto_policy.c | |
| parent | ext4 crypto: allocate the right amount of memory for the on-disk symlink (diff) | |
| download | linux-dev-abdd438b26b409eaccf9c847fcf9c3ab52f1959e.tar.xz linux-dev-abdd438b26b409eaccf9c847fcf9c3ab52f1959e.zip | |
ext4 crypto: handle unexpected lack of encryption keys
Fix up attempts by users to try to write to a file when they don't
have access to the encryption key.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/crypto_policy.c')
| -rw-r--r-- | fs/ext4/crypto_policy.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ext4/crypto_policy.c b/fs/ext4/crypto_policy.c index a1d434d0dea8..02c4e5df7afb 100644 --- a/fs/ext4/crypto_policy.c +++ b/fs/ext4/crypto_policy.c @@ -183,7 +183,8 @@ int ext4_inherit_context(struct inode *parent, struct inode *child) if (res < 0) return res; ci = EXT4_I(parent)->i_crypt_info; - BUG_ON(ci == NULL); + if (ci == NULL) + return -ENOKEY; ctx.format = EXT4_ENCRYPTION_CONTEXT_FORMAT_V1; if (DUMMY_ENCRYPTION_ENABLED(EXT4_SB(parent->i_sb))) { |