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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-03 14:57:15 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-05-13 19:32:24 +0300
commite1436df2f2550bc89d832ffd456373fdf5d5b5d7 (patch)
tree46e7fd60d448e896605fea231d053f872bbd10e5 /fs/ecryptfs
parent5265db2ccc735e2783b790d6c19fb5cee8c025ed (diff)
downloadlinux-e1436df2f2550bc89d832ffd456373fdf5d5b5d7.tar.xz
Revert "ecryptfs: replace BUG_ON with error handling code"
This reverts commit 2c2a7552dd6465e8fde6bc9cccf8d66ed1c1eb72. Because of recent interactions with developers from @umn.edu, all commits from them have been recently re-reviewed to ensure if they were correct or not. Upon review, this commit was found to be incorrect for the reasons below, so it must be reverted. It will be fixed up "correctly" in a later kernel change. The original commit log for this change was incorrect, no "error handling code" was added, things will blow up just as badly as before if any of these cases ever were true. As this BUG_ON() never fired, and most of these checks are "obviously" never going to be true, let's just revert to the original code for now until this gets unwound to be done correctly in the future. Cc: Aditya Pakki <pakki001@umn.edu> Fixes: 2c2a7552dd64 ("ecryptfs: replace BUG_ON with error handling code") Cc: stable <stable@vger.kernel.org> Acked-by: Tyler Hicks <code@tyhicks.com> Link: https://lore.kernel.org/r/20210503115736.2104747-49-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/ecryptfs')
-rw-r--r--fs/ecryptfs/crypto.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 345f8061e3b4..b1aa993784f7 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -296,10 +296,8 @@ static int crypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
struct extent_crypt_result ecr;
int rc = 0;
- if (!crypt_stat || !crypt_stat->tfm
- || !(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED))
- return -EINVAL;
-
+ BUG_ON(!crypt_stat || !crypt_stat->tfm
+ || !(crypt_stat->flags & ECRYPTFS_STRUCT_INITIALIZED));
if (unlikely(ecryptfs_verbosity > 0)) {
ecryptfs_printk(KERN_DEBUG, "Key size [%zd]; key:\n",
crypt_stat->key_size);