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| author | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-10 13:12:05 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-12 10:04:13 -0400 |
| commit | 6de37b6dc085e7c5e092b69289af66876526da44 (patch) | |
| tree | 5d2519411b954eb4d97c70fb972d7b8a1fb1c635 /fs/open.c | |
| parent | c9c554f21490bbc96cc554f80024d27d09670480 (diff) | |
| download | lwn-6de37b6dc085e7c5e092b69289af66876526da44.tar.gz lwn-6de37b6dc085e7c5e092b69289af66876526da44.zip | |
pass creds to get_empty_filp(), make sure dentry_open() passes the right creds
... and rename get_empty_filp() to alloc_empty_file().
dentry_open() gets creds as argument, but the only thing that sees those is
security_file_open() - file->f_cred still ends up with current_cred(). For
almost all callers it's the same thing, but there are several broken cases.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/open.c')
| -rw-r--r-- | fs/open.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/open.c b/fs/open.c index 530da965e369..0061f9ea044d 100644 --- a/fs/open.c +++ b/fs/open.c @@ -921,7 +921,7 @@ struct file *dentry_open(const struct path *path, int flags, /* We must always pass in a valid mount pointer. */ BUG_ON(!path->mnt); - f = get_empty_filp(); + f = alloc_empty_file(cred); if (!IS_ERR(f)) { f->f_flags = flags; error = vfs_open(path, f, cred); |