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mqueue: fix mq_open() file descriptor leak on user-space processes

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We leak fd on lookup_one_len() failure

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
André Goddard Rosa 2010-02-23 04:04:28 -03:00 committed by Al Viro
parent 4919c5e45a
commit 4294a8eedb
1 changed files with 1 additions and 2 deletions
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3
ipc/mqueue.c
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@ -705,7 +705,7 @@ SYSCALL_DEFINE4(mq_open, const char __user *, u_name, int, oflag, mode_t, mode,
dentry = lookup_one_len(name, ipc_ns->mq_mnt->mnt_root, strlen(name));
if (IS_ERR(dentry)) {
error = PTR_ERR(dentry);
goto out_err;
goto out_putfd;
}
mntget(ipc_ns->mq_mnt);
@ -742,7 +742,6 @@ out:
mntput(ipc_ns->mq_mnt);
out_putfd:
put_unused_fd(fd);
out_err:
fd = error;
out_upsem:
mutex_unlock(&ipc_ns->mq_mnt->mnt_root->d_inode->i_mutex);