A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Allow passing O_PATH descriptors via SCM_RIGHTS datagrams

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Just need to make sure that AF_UNIX garbage collector won't
confuse O_PATHed socket on filesystem for real AF_UNIX opened
socket.

Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Al Viro 2011-03-13 17:08:22 -04:00
commit 326be7b484
3 changed files with 4 additions and 2 deletions
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2
net/core/scm.c
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@ -95,7 +95,7 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp)
int fd = fdp[i];
struct file *file;
if (fd < 0 || !(file = fget(fd)))
if (fd < 0 || !(file = fget_raw(fd)))
return -EBADF;
*fpp++ = file;
fpl->count++;

2
net/unix/garbage.c
View file

@ -104,7 +104,7 @@ struct sock *unix_get_socket(struct file *filp)
/*
* Socket ?
*/
if (S_ISSOCK(inode->i_mode)) {
if (S_ISSOCK(inode->i_mode) && !(filp->f_mode & FMODE_PATH)) {
struct socket *sock = SOCKET_I(inode);
struct sock *s = sock->sk;