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| author | Luca Vizzarro <Luca.Vizzarro@arm.com> | 2023-02-15 16:50:05 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2023-07-10 14:36:12 +0200 |
| commit | f4ae4081e5a871b4c4e2f802ccf73f8d69566073 (patch) | |
| tree | 4ab4c716633a1dc71f618c6d3b7405a1455b1456 /fs/notify | |
| parent | pipe: Pass argument of pipe_fcntl as int (diff) | |
| download | linux-f4ae4081e5a871b4c4e2f802ccf73f8d69566073.tar.xz linux-f4ae4081e5a871b4c4e2f802ccf73f8d69566073.zip | |
dnotify: Pass argument of fcntl_dirnotify as int
The interface for fcntl expects the argument passed for the command
F_DIRNOTIFY to be of type int. The current code wrongly treats it as
a long. In order to avoid access to undefined bits, we should explicitly
cast the argument to int.
Cc: Jan Kara <jack@suse.cz>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Kevin Brodsky <Kevin.Brodsky@arm.com>
Cc: Vincenzo Frascino <Vincenzo.Frascino@arm.com>
Cc: Szabolcs Nagy <Szabolcs.Nagy@arm.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: David Laight <David.Laight@ACULAB.com>
Cc: Mark Rutland <Mark.Rutland@arm.com>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-morello@op-lists.linaro.org
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Luca Vizzarro <Luca.Vizzarro@arm.com>
Message-Id: <20230414152459.816046-6-Luca.Vizzarro@arm.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/notify')
| -rw-r--r-- | fs/notify/dnotify/dnotify.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c index 190aa717fa32..ebdcc25df0f7 100644 --- a/fs/notify/dnotify/dnotify.c +++ b/fs/notify/dnotify/dnotify.c @@ -199,7 +199,7 @@ void dnotify_flush(struct file *filp, fl_owner_t id) } /* this conversion is done only at watch creation */ -static __u32 convert_arg(unsigned long arg) +static __u32 convert_arg(unsigned int arg) { __u32 new_mask = FS_EVENT_ON_CHILD; @@ -258,7 +258,7 @@ static int attach_dn(struct dnotify_struct *dn, struct dnotify_mark *dn_mark, * up here. Allocate both a mark for fsnotify to add and a dnotify_struct to be * attached to the fsnotify_mark. */ -int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg) +int fcntl_dirnotify(int fd, struct file *filp, unsigned int arg) { struct dnotify_mark *new_dn_mark, *dn_mark; struct fsnotify_mark *new_fsn_mark, *fsn_mark; |