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fscrypt updates for 6.5

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Just one flex array conversion patch.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux

Pull fscrypt update from Eric Biggers:
 "Just one flex array conversion patch"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
  fscrypt: Replace 1-element array with flexible array
This commit is contained in:
Linus Torvalds 2023-06-26 10:54:55 -07:00
commit 4d483ab702
2 changed files with 6 additions and 6 deletions
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2
fs/crypto/fscrypt_private.h
View File

@ -171,7 +171,7 @@ fscrypt_policy_flags(const union fscrypt_policy *policy)
*/
struct fscrypt_symlink_data {
__le16 len;
char encrypted_path[1];
char encrypted_path[];
} __packed;
/**

10
fs/crypto/hooks.c
View File

@ -255,10 +255,10 @@ int fscrypt_prepare_symlink(struct inode *dir, const char *target,
* for now since filesystems will assume it is there and subtract it.
*/
if (!__fscrypt_fname_encrypted_size(policy, len,
max_len - sizeof(struct fscrypt_symlink_data),
max_len - sizeof(struct fscrypt_symlink_data) - 1,
&disk_link->len))
return -ENAMETOOLONG;
disk_link->len += sizeof(struct fscrypt_symlink_data);
disk_link->len += sizeof(struct fscrypt_symlink_data) + 1;
disk_link->name = NULL;
return 0;
@ -289,7 +289,7 @@ int __fscrypt_encrypt_symlink(struct inode *inode, const char *target,
if (!sd)
return -ENOMEM;
}
ciphertext_len = disk_link->len - sizeof(*sd);
ciphertext_len = disk_link->len - sizeof(*sd) - 1;
sd->len = cpu_to_le16(ciphertext_len);
err = fscrypt_fname_encrypt(inode, &iname, sd->encrypted_path,
@ -367,7 +367,7 @@ const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
* the ciphertext length, even though this is redundant with i_size.
*/
if (max_size < sizeof(*sd))
if (max_size < sizeof(*sd) + 1)
return ERR_PTR(-EUCLEAN);
sd = caddr;
cstr.name = (unsigned char *)sd->encrypted_path;
@ -376,7 +376,7 @@ const char *fscrypt_get_symlink(struct inode *inode, const void *caddr,
if (cstr.len == 0)
return ERR_PTR(-EUCLEAN);
if (cstr.len + sizeof(*sd) - 1 > max_size)
if (cstr.len + sizeof(*sd) > max_size)
return ERR_PTR(-EUCLEAN);
err = fscrypt_fname_alloc_buffer(cstr.len, &pstr);