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[PATCH] file: modify struct fown_struct to use a struct pid

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File handles can be requested to send sigio and sigurg to processes.  By
tracking the destination processes using struct pid instead of pid_t we make
the interface safe from all potential pid wrap around problems.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman
2006-10-02 02:17:15 -07:00
committed by Linus Torvalds
parent bde0d2c98b
commit 609d7fa956
8 changed files with 59 additions and 34 deletions
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2
net/socket.c
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@@ -825,7 +825,7 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
break;
case FIOGETOWN:
case SIOCGPGRP:
err = put_user(sock->file->f_owner.pid,
err = put_user(f_getown(sock->file),
(int __user *)argp);
break;
case SIOCGIFBR: