diff options
| -rw-r--r-- | fs/locks.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/locks.c b/fs/locks.c index 3b54b98236ee..09d6c8c33c81 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1931,6 +1931,10 @@ int fcntl_getlk(struct file *filp, unsigned int cmd, struct flock __user *l) goto out; if (cmd == F_GETLKP) { + error = -EINVAL; + if (flock.l_pid != 0) + goto out; + cmd = F_GETLK; file_lock.fl_flags |= FL_FILE_PVT; file_lock.fl_owner = (fl_owner_t)filp; @@ -2062,11 +2066,19 @@ again: */ switch (cmd) { case F_SETLKP: + error = -EINVAL; + if (flock.l_pid != 0) + goto out; + cmd = F_SETLK; file_lock->fl_flags |= FL_FILE_PVT; file_lock->fl_owner = (fl_owner_t)filp; break; case F_SETLKPW: + error = -EINVAL; + if (flock.l_pid != 0) + goto out; + cmd = F_SETLKW; file_lock->fl_flags |= FL_FILE_PVT; file_lock->fl_owner = (fl_owner_t)filp; @@ -2121,6 +2133,10 @@ int fcntl_getlk64(struct file *filp, unsigned int cmd, struct flock64 __user *l) goto out; if (cmd == F_GETLKP) { + error = -EINVAL; + if (flock.l_pid != 0) + goto out; + cmd = F_GETLK64; file_lock.fl_flags |= FL_FILE_PVT; file_lock.fl_owner = (fl_owner_t)filp; @@ -2185,11 +2201,19 @@ again: */ switch (cmd) { case F_SETLKP: + error = -EINVAL; + if (flock.l_pid != 0) + goto out; + cmd = F_SETLK64; file_lock->fl_flags |= FL_FILE_PVT; file_lock->fl_owner = (fl_owner_t)filp; break; case F_SETLKPW: + error = -EINVAL; + if (flock.l_pid != 0) + goto out; + cmd = F_SETLKW64; file_lock->fl_flags |= FL_FILE_PVT; file_lock->fl_owner = (fl_owner_t)filp; |