diff options
Diffstat (limited to 'fs/f2fs/namei.c')
| -rw-r--r-- | fs/f2fs/namei.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c index a680bf38e4f0..dfa01c88b34b 100644 --- a/fs/f2fs/namei.c +++ b/fs/f2fs/namei.c @@ -947,8 +947,13 @@ static const char *f2fs_encrypted_follow_link(struct dentry *dentry, void **cook /* Symlink is encrypted */ sd = (struct f2fs_encrypted_symlink_data *)caddr; - cstr.name = sd->encrypted_path; cstr.len = le16_to_cpu(sd->len); + cstr.name = kmalloc(cstr.len, GFP_NOFS); + if (!cstr.name) { + res = -ENOMEM; + goto errout; + } + memcpy(cstr.name, sd->encrypted_path, cstr.len); /* this is broken symlink case */ if (cstr.name[0] == 0 && cstr.len == 0) { @@ -970,6 +975,8 @@ static const char *f2fs_encrypted_follow_link(struct dentry *dentry, void **cook if (res < 0) goto errout; + kfree(cstr.name); + paddr = pstr.name; /* Null-terminate the name */ @@ -979,6 +986,7 @@ static const char *f2fs_encrypted_follow_link(struct dentry *dentry, void **cook page_cache_release(cpage); return *cookie = paddr; errout: + kfree(cstr.name); f2fs_fname_crypto_free_buffer(&pstr); kunmap(cpage); page_cache_release(cpage); |