linux-kernel - [PATCH 14/19] fs: Permit FIBMAP for users with CAP_SYS_RAWIO in s_user

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Message-Id: <1449070821-73820-15-git-send-email-seth.forshee@canonical.com>
Date:	Wed,  2 Dec 2015 09:40:14 -0600
From:	Seth Forshee <seth.forshee@...onical.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Alexander Viro <viro@...iv.linux.org.uk>
Cc:	Serge Hallyn <serge.hallyn@...onical.com>,
	Richard Weinberger <richard.weinberger@...il.com>,
	Austin S Hemmelgarn <ahferroin7@...il.com>,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-bcache@...r.kernel.org, dm-devel@...hat.com,
	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-mtd@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
	fuse-devel@...ts.sourceforge.net,
	linux-security-module@...r.kernel.org, selinux@...ho.nsa.gov,
	Seth Forshee <seth.forshee@...onical.com>
Subject: [PATCH 14/19] fs: Permit FIBMAP for users with CAP_SYS_RAWIO in s_user_ns

Signed-off-by: Seth Forshee <seth.forshee@...onical.com>
---
 fs/ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ioctl.c b/fs/ioctl.c
index 5d01d2638ca5..45c371bed7ee 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -55,7 +55,7 @@ static int ioctl_fibmap(struct file *filp, int __user *p)
 	/* do we support this mess? */
 	if (!mapping->a_ops->bmap)
 		return -EINVAL;
-	if (!capable(CAP_SYS_RAWIO))
+	if (!ns_capable(filp->f_inode->i_sb->s_user_ns, CAP_SYS_RAWIO))
 		return -EPERM;
 	res = get_user(block, p);
 	if (res)
-- 
1.9.1

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