summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLuca Vizzarro <Luca.Vizzarro@arm.com>2023-02-01 18:05:33 +0300
committerChristian Brauner <brauner@kernel.org>2023-07-10 15:36:11 +0300
commited5f17f66ef39273dcf83ca89b2f1d52a52b22a5 (patch)
tree57990e97f504bb474b8cd0142af1c0fe4b812b58
parentbccb5c397fbfe348e22c045f5e09c35780edb817 (diff)
downloadlinux-ed5f17f66ef39273dcf83ca89b2f1d52a52b22a5.tar.xz
fs: Pass argument to fcntl_setlease as int
The interface for fcntl expects the argument passed for the command F_SETLEASE 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: 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: Trond Myklebust <trond.myklebust@hammerspace.com> Cc: Anna Schumaker <anna@kernel.org> 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-cifs@vger.kernel.org Cc: linux-nfs@vger.kernel.org Cc: linux-morello@op-lists.linaro.org Signed-off-by: Luca Vizzarro <Luca.Vizzarro@arm.com> Message-Id: <20230414152459.816046-3-Luca.Vizzarro@arm.com> Signed-off-by: Christian Brauner <brauner@kernel.org>
-rw-r--r--fs/libfs.c2
-rw-r--r--fs/locks.c20
-rw-r--r--fs/nfs/nfs4_fs.h2
-rw-r--r--fs/nfs/nfs4file.c2
-rw-r--r--fs/nfs/nfs4proc.c4
-rw-r--r--fs/smb/client/cifsfs.c2
-rw-r--r--include/linux/filelock.h12
-rw-r--r--include/linux/fs.h4
8 files changed, 24 insertions, 24 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index 5b851315eeed..0ea7fedb0b7a 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1269,7 +1269,7 @@ EXPORT_SYMBOL(alloc_anon_inode);
* All arguments are ignored and it just returns -EINVAL.
*/
int
-simple_nosetlease(struct file *filp, long arg, struct file_lock **flp,
+simple_nosetlease(struct file *filp, int arg, struct file_lock **flp,
void **priv)
{
return -EINVAL;
diff --git a/fs/locks.c b/fs/locks.c
index df8b26a42524..265b5190db3e 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -438,7 +438,7 @@ static void flock_make_lock(struct file *filp, struct file_lock *fl, int type)
fl->fl_end = OFFSET_MAX;
}
-static int assign_type(struct file_lock *fl, long type)
+static int assign_type(struct file_lock *fl, int type)
{
switch (type) {
case F_RDLCK:
@@ -549,7 +549,7 @@ static const struct lock_manager_operations lease_manager_ops = {
/*
* Initialize a lease, use the default lock manager operations
*/
-static int lease_init(struct file *filp, long type, struct file_lock *fl)
+static int lease_init(struct file *filp, int type, struct file_lock *fl)
{
if (assign_type(fl, type) != 0)
return -EINVAL;
@@ -567,7 +567,7 @@ static int lease_init(struct file *filp, long type, struct file_lock *fl)
}
/* Allocate a file_lock initialised to this type of lease */
-static struct file_lock *lease_alloc(struct file *filp, long type)
+static struct file_lock *lease_alloc(struct file *filp, int type)
{
struct file_lock *fl = locks_alloc_lock();
int error = -ENOMEM;
@@ -1666,7 +1666,7 @@ int fcntl_getlease(struct file *filp)
* conflict with the lease we're trying to set.
*/
static int
-check_conflicting_open(struct file *filp, const long arg, int flags)
+check_conflicting_open(struct file *filp, const int arg, int flags)
{
struct inode *inode = file_inode(filp);
int self_wcount = 0, self_rcount = 0;
@@ -1701,7 +1701,7 @@ check_conflicting_open(struct file *filp, const long arg, int flags)
}
static int
-generic_add_lease(struct file *filp, long arg, struct file_lock **flp, void **priv)
+generic_add_lease(struct file *filp, int arg, struct file_lock **flp, void **priv)
{
struct file_lock *fl, *my_fl = NULL, *lease;
struct inode *inode = file_inode(filp);
@@ -1859,7 +1859,7 @@ static int generic_delete_lease(struct file *filp, void *owner)
* The (input) flp->fl_lmops->lm_break function is required
* by break_lease().
*/
-int generic_setlease(struct file *filp, long arg, struct file_lock **flp,
+int generic_setlease(struct file *filp, int arg, struct file_lock **flp,
void **priv)
{
struct inode *inode = file_inode(filp);
@@ -1906,7 +1906,7 @@ lease_notifier_chain_init(void)
}
static inline void
-setlease_notifier(long arg, struct file_lock *lease)
+setlease_notifier(int arg, struct file_lock *lease)
{
if (arg != F_UNLCK)
srcu_notifier_call_chain(&lease_notifier_chain, arg, lease);
@@ -1942,7 +1942,7 @@ EXPORT_SYMBOL_GPL(lease_unregister_notifier);
* may be NULL if the lm_setup operation doesn't require it.
*/
int
-vfs_setlease(struct file *filp, long arg, struct file_lock **lease, void **priv)
+vfs_setlease(struct file *filp, int arg, struct file_lock **lease, void **priv)
{
if (lease)
setlease_notifier(arg, *lease);
@@ -1953,7 +1953,7 @@ vfs_setlease(struct file *filp, long arg, struct file_lock **lease, void **priv)
}
EXPORT_SYMBOL_GPL(vfs_setlease);
-static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
+static int do_fcntl_add_lease(unsigned int fd, struct file *filp, int arg)
{
struct file_lock *fl;
struct fasync_struct *new;
@@ -1988,7 +1988,7 @@ static int do_fcntl_add_lease(unsigned int fd, struct file *filp, long arg)
* Note that you also need to call %F_SETSIG to
* receive a signal when the lease is broken.
*/
-int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
+int fcntl_setlease(unsigned int fd, struct file *filp, int arg)
{
if (arg == F_UNLCK)
return vfs_setlease(filp, F_UNLCK, NULL, (void **)&filp);
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4c9f8bd866ab..47c5c1f86d66 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -328,7 +328,7 @@ extern int update_open_stateid(struct nfs4_state *state,
const nfs4_stateid *open_stateid,
const nfs4_stateid *deleg_stateid,
fmode_t fmode);
-extern int nfs4_proc_setlease(struct file *file, long arg,
+extern int nfs4_proc_setlease(struct file *file, int arg,
struct file_lock **lease, void **priv);
extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
struct nfs_fsinfo *fsinfo);
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 4aeadd6e1a6d..02788c3c85e5 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -438,7 +438,7 @@ void nfs42_ssc_unregister_ops(void)
}
#endif /* CONFIG_NFS_V4_2 */
-static int nfs4_setlease(struct file *file, long arg, struct file_lock **lease,
+static int nfs4_setlease(struct file *file, int arg, struct file_lock **lease,
void **priv)
{
return nfs4_proc_setlease(file, arg, lease, priv);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e1a886b58354..b4593fbe0114 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7573,7 +7573,7 @@ static int nfs4_delete_lease(struct file *file, void **priv)
return generic_setlease(file, F_UNLCK, NULL, priv);
}
-static int nfs4_add_lease(struct file *file, long arg, struct file_lock **lease,
+static int nfs4_add_lease(struct file *file, int arg, struct file_lock **lease,
void **priv)
{
struct inode *inode = file_inode(file);
@@ -7591,7 +7591,7 @@ static int nfs4_add_lease(struct file *file, long arg, struct file_lock **lease,
return -EAGAIN;
}
-int nfs4_proc_setlease(struct file *file, long arg, struct file_lock **lease,
+int nfs4_proc_setlease(struct file *file, int arg, struct file_lock **lease,
void **priv)
{
switch (arg) {
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index a4d8b0ea1c8c..6fc8f43b1c9d 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -1077,7 +1077,7 @@ static loff_t cifs_llseek(struct file *file, loff_t offset, int whence)
}
static int
-cifs_setlease(struct file *file, long arg, struct file_lock **lease, void **priv)
+cifs_setlease(struct file *file, int arg, struct file_lock **lease, void **priv)
{
/*
* Note that this is called by vfs setlease with i_lock held to
diff --git a/include/linux/filelock.h b/include/linux/filelock.h
index efcdd1631d9b..95e868e09e29 100644
--- a/include/linux/filelock.h
+++ b/include/linux/filelock.h
@@ -144,7 +144,7 @@ int fcntl_setlk64(unsigned int, struct file *, unsigned int,
struct flock64 *);
#endif
-int fcntl_setlease(unsigned int fd, struct file *filp, long arg);
+int fcntl_setlease(unsigned int fd, struct file *filp, int arg);
int fcntl_getlease(struct file *filp);
/* fs/locks.c */
@@ -167,8 +167,8 @@ bool vfs_inode_has_locks(struct inode *inode);
int locks_lock_inode_wait(struct inode *inode, struct file_lock *fl);
int __break_lease(struct inode *inode, unsigned int flags, unsigned int type);
void lease_get_mtime(struct inode *, struct timespec64 *time);
-int generic_setlease(struct file *, long, struct file_lock **, void **priv);
-int vfs_setlease(struct file *, long, struct file_lock **, void **);
+int generic_setlease(struct file *, int, struct file_lock **, void **priv);
+int vfs_setlease(struct file *, int, struct file_lock **, void **);
int lease_modify(struct file_lock *, int, struct list_head *);
struct notifier_block;
@@ -213,7 +213,7 @@ static inline int fcntl_setlk64(unsigned int fd, struct file *file,
return -EACCES;
}
#endif
-static inline int fcntl_setlease(unsigned int fd, struct file *filp, long arg)
+static inline int fcntl_setlease(unsigned int fd, struct file *filp, int arg)
{
return -EINVAL;
}
@@ -306,13 +306,13 @@ static inline void lease_get_mtime(struct inode *inode,
return;
}
-static inline int generic_setlease(struct file *filp, long arg,
+static inline int generic_setlease(struct file *filp, int arg,
struct file_lock **flp, void **priv)
{
return -EINVAL;
}
-static inline int vfs_setlease(struct file *filp, long arg,
+static inline int vfs_setlease(struct file *filp, int arg,
struct file_lock **lease, void **priv)
{
return -EINVAL;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8e546433c781..11055d00fab8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1799,7 +1799,7 @@ struct file_operations {
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
void (*splice_eof)(struct file *file);
- int (*setlease)(struct file *, long, struct file_lock **, void **);
+ int (*setlease)(struct file *, int, struct file_lock **, void **);
long (*fallocate)(struct file *file, int mode, loff_t offset,
loff_t len);
void (*show_fdinfo)(struct seq_file *m, struct file *f);
@@ -2950,7 +2950,7 @@ extern int simple_write_begin(struct file *file, struct address_space *mapping,
extern const struct address_space_operations ram_aops;
extern int always_delete_dentry(const struct dentry *);
extern struct inode *alloc_anon_inode(struct super_block *);
-extern int simple_nosetlease(struct file *, long, struct file_lock **, void **);
+extern int simple_nosetlease(struct file *, int, struct file_lock **, void **);
extern const struct dentry_operations simple_dentry_operations;
extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);