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| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2016-04-18 06:41:52 -0500 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2016-05-17 14:09:33 -0500 |
| commit | 1f1735cb75ab31ed948a7fce65beaaa6c0ed4ed4 (patch) | |
| tree | 35d88237f7ab55df1bf394d5c214185c2be03bd0 /fs/cifs/readdir.c | |
| parent | 7f427d3a6029331304f91ef4d7cf646f054216d2 (diff) | |
| download | linux-stable-1f1735cb75ab31ed948a7fce65beaaa6c0ed4ed4.tar.gz linux-stable-1f1735cb75ab31ed948a7fce65beaaa6c0ed4ed4.tar.bz2 linux-stable-1f1735cb75ab31ed948a7fce65beaaa6c0ed4ed4.zip | |
cifs: Use file_dentry()
CIFS may be used as lower layer of overlayfs and accessing f_path.dentry can
lead to a crash.
Fix by replacing direct access of file->f_path.dentry with the
file_dentry() accessor, which will always return a native object.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/readdir.c')
| -rw-r--r-- | fs/cifs/readdir.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 867439c21001..65cf85dcda09 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c @@ -303,7 +303,7 @@ initiate_cifs_search(const unsigned int xid, struct file *file) cifsFile->invalidHandle = true; cifsFile->srch_inf.endOfSearch = false; - full_path = build_path_from_dentry(file->f_path.dentry); + full_path = build_path_from_dentry(file_dentry(file)); if (full_path == NULL) { rc = -ENOMEM; goto error_exit; @@ -762,7 +762,7 @@ static int cifs_filldir(char *find_entry, struct file *file, */ fattr.cf_flags |= CIFS_FATTR_NEED_REVAL; - cifs_prime_dcache(file->f_path.dentry, &name, &fattr); + cifs_prime_dcache(file_dentry(file), &name, &fattr); ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid); return !dir_emit(ctx, name.name, name.len, ino, fattr.cf_dtype); |