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From: Dongsu Park <dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Miklos Szeredi <mszeredi-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Seth Forshee
	<seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>,
	dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	Alban Crequy <alban-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>,
	"Eric W . Biederman"
	<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
	linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Jan Kara <jack-IBi9RG/b67k@public.gmane.org>,
	Sargun Dhillon <sargun-GaZTRHToo+CzQB+pC5nmwQ@public.gmane.org>,
	linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Alexander Viro
	<viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
Subject: [PATCH 01/11] block_dev: Support checking inode permissions in lookup_bdev()
Date: Fri, 22 Dec 2017 15:32:25 +0100	[thread overview]
Message-ID: <ef5e609602df6d7e2b4aa07b92600f04b6851902.1512041070.git.dongsu__45265.4060246006$1513953000$gmane$org@kinvolk.io> (raw)
In-Reply-To: <cover.1512741134.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>

From: Seth Forshee <seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>

When looking up a block device by path no permission check is
done to verify that the user has access to the block device inode
at the specified path. In some cases it may be necessary to
check permissions towards the inode, such as allowing
unprivileged users to mount block devices in user namespaces.

Add an argument to lookup_bdev() to optionally perform this
permission check. A value of 0 skips the permission check and
behaves the same as before. A non-zero value specifies the mask
of access rights required towards the inode at the specified
path. The check is always skipped if the user has CAP_SYS_ADMIN.

All callers of lookup_bdev() currently pass a mask of 0, so this
patch results in no functional change. Subsequent patches will
add permission checks where appropriate.

Patch v4 is available: https://patchwork.kernel.org/patch/8943601/

Cc: dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: Alexander Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
Cc: Jan Kara <jack-IBi9RG/b67k@public.gmane.org>
Cc: Serge Hallyn <serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Seth Forshee <seth.forshee-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
Signed-off-by: Dongsu Park <dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
---
 drivers/md/bcache/super.c |  2 +-
 drivers/md/dm-table.c     |  2 +-
 drivers/mtd/mtdsuper.c    |  2 +-
 fs/block_dev.c            | 13 ++++++++++---
 fs/quota/quota.c          |  2 +-
 include/linux/fs.h        |  2 +-
 6 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index b4d28928..acc9d56c 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1967,7 +1967,7 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr,
 				  sb);
 	if (IS_ERR(bdev)) {
 		if (bdev == ERR_PTR(-EBUSY)) {
-			bdev = lookup_bdev(strim(path));
+			bdev = lookup_bdev(strim(path), 0);
 			mutex_lock(&bch_register_lock);
 			if (!IS_ERR(bdev) && bch_is_open(bdev))
 				err = "device already registered";
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 88130b5d..bca5eaf4 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -410,7 +410,7 @@ dev_t dm_get_dev_t(const char *path)
 	dev_t dev;
 	struct block_device *bdev;
 
-	bdev = lookup_bdev(path);
+	bdev = lookup_bdev(path, 0);
 	if (IS_ERR(bdev))
 		dev = name_to_dev_t(path);
 	else {
diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index e43fea89..4a4d40c0 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -180,7 +180,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
 	/* try the old way - the hack where we allowed users to mount
 	 * /dev/mtdblock$(n) but didn't actually _use_ the blockdev
 	 */
-	bdev = lookup_bdev(dev_name);
+	bdev = lookup_bdev(dev_name, 0);
 	if (IS_ERR(bdev)) {
 		ret = PTR_ERR(bdev);
 		pr_debug("MTDSB: lookup_bdev() returned %d\n", ret);
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 4a181fcb..5ca06095 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1662,7 +1662,7 @@ struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
 	struct block_device *bdev;
 	int err;
 
-	bdev = lookup_bdev(path);
+	bdev = lookup_bdev(path, 0);
 	if (IS_ERR(bdev))
 		return bdev;
 
@@ -2052,12 +2052,14 @@ EXPORT_SYMBOL(ioctl_by_bdev);
 /**
  * lookup_bdev  - lookup a struct block_device by name
  * @pathname:	special file representing the block device
+ * @mask:	rights to check for (%MAY_READ, %MAY_WRITE, %MAY_EXEC)
  *
  * Get a reference to the blockdevice at @pathname in the current
  * namespace if possible and return it.  Return ERR_PTR(error)
- * otherwise.
+ * otherwise.  If @mask is non-zero, check for access rights to the
+ * inode at @pathname.
  */
-struct block_device *lookup_bdev(const char *pathname)
+struct block_device *lookup_bdev(const char *pathname, int mask)
 {
 	struct block_device *bdev;
 	struct inode *inode;
@@ -2072,6 +2074,11 @@ struct block_device *lookup_bdev(const char *pathname)
 		return ERR_PTR(error);
 
 	inode = d_backing_inode(path.dentry);
+	if (mask != 0 && !capable(CAP_SYS_ADMIN)) {
+		error = __inode_permission(inode, mask);
+		if (error)
+			goto fail;
+	}
 	error = -ENOTBLK;
 	if (!S_ISBLK(inode->i_mode))
 		goto fail;
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 43612e2a..e5d47955 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -807,7 +807,7 @@ static struct super_block *quotactl_block(const char __user *special, int cmd)
 
 	if (IS_ERR(tmp))
 		return ERR_CAST(tmp);
-	bdev = lookup_bdev(tmp->name);
+	bdev = lookup_bdev(tmp->name, 0);
 	putname(tmp);
 	if (IS_ERR(bdev))
 		return ERR_CAST(bdev);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2995a271..fce19c49 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2551,7 +2551,7 @@ static inline void unregister_chrdev(unsigned int major, const char *name)
 #define BLKDEV_MAJOR_MAX	512
 extern const char *__bdevname(dev_t, char *buffer);
 extern const char *bdevname(struct block_device *bdev, char *buffer);
-extern struct block_device *lookup_bdev(const char *);
+extern struct block_device *lookup_bdev(const char *, int mask);
 extern void blkdev_show(struct seq_file *,off_t);
 
 #else
-- 
2.13.6

  parent reply	other threads:[~2017-12-22 14:32 UTC|newest]

Thread overview: 218+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-22 14:32 [PATCH v5 00/11] FUSE mounts from non-init user namespaces Dongsu Park
2017-12-22 14:32 ` [PATCH 01/11] block_dev: Support checking inode permissions in lookup_bdev() Dongsu Park
2017-12-22 18:59   ` Coly Li
2017-12-23 12:00     ` Dongsu Park
     [not found]     ` <17fbec10-68b1-2d2b-d417-2cdfee22b0fa-53JG2FQvpdo@public.gmane.org>
2017-12-23 12:00       ` Dongsu Park
     [not found]   ` <ef5e609602df6d7e2b4aa07b92600f04b6851902.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-22 18:59     ` Coly Li
2017-12-23  3:03     ` Serge E. Hallyn
2017-12-23  3:03   ` Serge E. Hallyn
2017-12-22 14:32 ` [PATCH 03/11] fs: Allow superblock owner to change ownership of inodes Dongsu Park
     [not found]   ` <ac3d34002d7690f6ca5928b57b7fc4d707104b04.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:17     ` Serge E. Hallyn
2017-12-23  3:17       ` Serge E. Hallyn
2018-01-05 19:24     ` Luis R. Rodriguez
2018-02-13 13:18     ` Miklos Szeredi
2018-01-05 19:24   ` Luis R. Rodriguez
2018-01-09 15:10     ` Dongsu Park
2018-01-09 17:23       ` Luis R. Rodriguez
     [not found]       ` <CANxcAMvDQFH0g5PPnVZ3p2Tei04N+8fNf0pk02DrfTkBHjjrPQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-09 17:23         ` Luis R. Rodriguez
     [not found]     ` <20180105192407.GF22430-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2018-01-09 15:10       ` Dongsu Park
2018-02-13 13:18   ` Miklos Szeredi
2018-02-16 22:00     ` Eric W. Biederman
     [not found]     ` <CAOssrKcZeAHsRz7P_dxh==QAKnp7HeSTh4vWY2tgbWa1ZD918g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-16 22:00       ` Eric W. Biederman
2017-12-22 14:32 ` [PATCH 04/11] fs: Don't remove suid for CAP_FSETID for userns root Dongsu Park
     [not found]   ` <ddf1fb9b5001e633e0022dee7fecb0ef431e851f.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:26     ` Serge E. Hallyn
2017-12-23  3:26   ` Serge E. Hallyn
2017-12-23 12:38     ` Dongsu Park
     [not found]       ` <CANxcAMtpE05xpOPt3Ua+4DkiTzkW5hOo4BBpiNZh_5+RTCfThA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-13 13:37         ` Miklos Szeredi
2018-02-13 13:37           ` Miklos Szeredi
     [not found]     ` <20171223032606.GD6837-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2017-12-23 12:38       ` Dongsu Park
2017-12-22 14:32 ` [PATCH 05/11] fs: Allow superblock owner to access do_remount_sb() Dongsu Park
     [not found]   ` <8dd484dceb9e96e5b67f21b8a0cf333753985e89.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:30     ` Serge E. Hallyn
2017-12-23  3:30   ` Serge E. Hallyn
2017-12-22 14:32 ` [PATCH 08/11] fuse: Support fuse filesystems outside of init_user_ns Dongsu Park
2018-01-17 10:59   ` Alban Crequy
2018-01-17 14:29     ` Seth Forshee
2018-01-17 18:56       ` Alban Crequy
2018-01-17 18:56       ` Alban Crequy
2018-01-17 19:31         ` Seth Forshee
2018-01-18 10:29           ` Alban Crequy
2018-01-18 10:29           ` Alban Crequy
     [not found]         ` <CADZs7q6ZHGHbrdL96Bmy148Zc6TxruiJrEeDjaDYEX8U-5QV1A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-17 19:31           ` Seth Forshee
     [not found]     ` <CADZs7q5NA7Kox62vnCOkL=TGgzTxX+oNYz6=oNXKWkQkQwSMrA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-17 14:29       ` Seth Forshee
     [not found]   ` <c85c293e19a478353aba8e6e3ee39e5914f798d5.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:46     ` Serge E. Hallyn
2017-12-23  3:46       ` Serge E. Hallyn
2018-01-17 10:59     ` Alban Crequy
2018-02-12 15:57     ` Miklos Szeredi
2018-02-12 15:57       ` Miklos Szeredi
2018-02-12 16:35       ` Eric W. Biederman
     [not found]         ` <87lgfy5fpd.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-13 10:20           ` Miklos Szeredi
2018-02-13 10:20         ` Miklos Szeredi
     [not found]           ` <CAOssrKcKz8p9YQJLf2W_NCBo+12auxir5jFwXGbANdWdgavpsw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-16 21:52             ` Eric W. Biederman
2018-02-16 21:52           ` Eric W. Biederman
     [not found]       ` <CAOssrKd6vkMDwRT=QQofKCufzQczzQ7dXoVbVfVax-0HqD986w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-12 16:35         ` Eric W. Biederman
2018-02-20  2:12     ` Eric W. Biederman
2018-02-20  2:12       ` Eric W. Biederman
     [not found] ` <cover.1512741134.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-22 14:32   ` Dongsu Park [this message]
2017-12-22 14:32   ` [PATCH 02/11] mtd: Check permissions towards mtd block device inode when mounting Dongsu Park
2017-12-22 14:32     ` Dongsu Park
     [not found]     ` <945d325a2239efcd55273abb2bac41cfc7264fea.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-22 21:06       ` Richard Weinberger
2017-12-23  3:05       ` Serge E. Hallyn
2017-12-22 21:06     ` Richard Weinberger
     [not found]       ` <CAFLxGvwzRBGJf0-jCAwGts1HwV_nT072+yhHLP079sxQezoTFQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-23 12:18         ` Dongsu Park
2017-12-23 12:18           ` Dongsu Park
     [not found]           ` <CANxcAMtVqgLmQaTtfJocGGgsn5dSX2CDwzh6bwv6OnjUUwsTrg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-23 12:56             ` Richard Weinberger
2017-12-23 12:56           ` Richard Weinberger
2017-12-23  3:05     ` Serge E. Hallyn
2017-12-22 14:32   ` [PATCH 03/11] fs: Allow superblock owner to change ownership of inodes Dongsu Park
2017-12-22 14:32   ` [PATCH 04/11] fs: Don't remove suid for CAP_FSETID for userns root Dongsu Park
2017-12-22 14:32   ` [PATCH 05/11] fs: Allow superblock owner to access do_remount_sb() Dongsu Park
2017-12-22 14:32   ` [PATCH 06/11] capabilities: Allow privileged user in s_user_ns to set security.* xattrs Dongsu Park
2017-12-22 14:32     ` Dongsu Park
2017-12-22 14:32     ` Dongsu Park
2017-12-23  3:33     ` Serge E. Hallyn
2017-12-23  3:33       ` Serge E. Hallyn
     [not found]     ` <5adc5e31c25beb987798ecc219df79671547a9ac.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:33       ` Serge E. Hallyn
2017-12-22 14:32   ` [PATCH 07/11] fs: Allow CAP_SYS_ADMIN in s_user_ns to freeze and thaw filesystems Dongsu Park
2017-12-22 14:32     ` Dongsu Park
2017-12-23  3:39     ` Serge E. Hallyn
2018-02-14 12:28     ` Miklos Szeredi
     [not found]       ` <CAOssrKeSTY1pAhpmegFWdGh7irNbT4veG5JaYFj8Q1JjMynadw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-19 22:56         ` Eric W. Biederman
2018-02-19 22:56           ` Eric W. Biederman
     [not found]     ` <61a37f0b159dd56825696d8d3beb8eaffdf1f72f.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:39       ` Serge E. Hallyn
2018-02-14 12:28       ` Miklos Szeredi
2017-12-22 14:32   ` [PATCH 08/11] fuse: Support fuse filesystems outside of init_user_ns Dongsu Park
2017-12-22 14:32   ` [PATCH 09/11] fuse: Restrict allow_other to the superblock's namespace or a descendant Dongsu Park
2017-12-22 14:32   ` [PATCH 10/11] fuse: Allow user namespace mounts Dongsu Park
2017-12-22 14:32   ` [PATCH 11/11] evm: Don't update hmacs in user ns mounts Dongsu Park
2017-12-25  7:05   ` [PATCH v5 00/11] FUSE mounts from non-init user namespaces Eric W. Biederman
2018-02-13 11:32   ` Miklos Szeredi
2018-02-13 11:32     ` Miklos Szeredi
2018-02-16 21:53     ` Eric W. Biederman
     [not found]     ` <CAOssrKey+oxahrXHO5d6Lu1ZD=r1t-b0i4iZM_Ke9ToqTckjkQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-16 21:53       ` Eric W. Biederman
2018-02-21 20:24   ` [PATCH v6 0/6] fuse: " Eric W. Biederman
2018-02-21 20:24     ` Eric W. Biederman
     [not found]     ` <878tbmf5vl.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-21 20:29       ` [PATCH v6 1/5] fuse: Remove the buggy retranslation of pids in fuse_dev_do_read Eric W. Biederman
2018-02-21 20:29         ` Eric W. Biederman
2018-02-22 10:13         ` Miklos Szeredi
     [not found]           ` <CAOssrKch20vj8phkjfjMe=07-8uQiuXfOuCTDjrMzPbkg6DoxA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-22 19:04             ` Eric W. Biederman
2018-02-22 19:04               ` Eric W. Biederman
2018-02-21 20:29       ` [PATCH v6 2/5] fuse: Fail all requests with invalid uids or gids Eric W. Biederman
2018-02-21 20:29         ` Eric W. Biederman
2018-02-22 10:26         ` Miklos Szeredi
     [not found]           ` <CAOssrKeYuVj6ZWUrXp7R_d+wdoArnJ=mhRp22qE9JBW3x-7tfw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-22 18:15             ` Eric W. Biederman
2018-02-22 18:15               ` Eric W. Biederman
2018-02-21 20:29       ` [PATCH v6 3/5] fuse: Support fuse filesystems outside of init_user_ns Eric W. Biederman
2018-02-21 20:29         ` Eric W. Biederman
2018-02-21 20:29       ` [PATCH v6 4/5] fuse: Ensure posix acls are translated " Eric W. Biederman
2018-02-21 20:29         ` Eric W. Biederman
2018-02-22 11:40         ` Miklos Szeredi
     [not found]           ` <CAOssrKeNLBeMkMrrCeRBO9Z80zFxCCEygKL3DErnQ9xBoLkH0g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-22 19:18             ` Eric W. Biederman
2018-02-22 19:18               ` Eric W. Biederman
     [not found]               ` <87inao6dfa.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-22 22:50                 ` Eric W. Biederman
2018-02-22 22:50                   ` Eric W. Biederman
2018-02-26  7:47                   ` Miklos Szeredi
     [not found]                     ` <CAOssrKd+c0Mx+=S-+zr1QS8a37Pm=VGki=FVR+LXQZBsk3byqA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-26 16:35                       ` Eric W. Biederman
2018-02-26 16:35                         ` Eric W. Biederman
     [not found]                         ` <87zi3v1zga.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-26 21:51                           ` Eric W. Biederman
2018-02-26 21:51                             ` Eric W. Biederman
     [not found]                   ` <87mv004p0t.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-26  7:47                     ` Miklos Szeredi
2018-02-21 20:29       ` [PATCH v6 5/5] fuse: Restrict allow_other to the superblock's namespace or a descendant Eric W. Biederman
2018-02-21 20:29         ` Eric W. Biederman
2018-02-26 23:52       ` [PATCH v7 0/7] fuse: mounts from non-init user namespaces Eric W. Biederman
2018-02-26 23:52     ` Eric W. Biederman
2018-02-26 23:52       ` [PATCH v7 1/7] fuse: Remove the buggy retranslation of pids in fuse_dev_do_read Eric W. Biederman
     [not found]       ` <87po4rz4ui.fsf_-_-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-26 23:52         ` Eric W. Biederman
2018-02-26 23:52         ` [PATCH v7 2/7] fuse: Fail all requests with invalid uids or gids Eric W. Biederman
2018-02-26 23:52           ` Eric W. Biederman
2018-02-26 23:52         ` [PATCH v7 3/7] fs/posix_acl: Document that get_acl respects ACL_DONT_CACHE Eric W. Biederman
2018-02-26 23:52         ` [PATCH v7 4/7] fuse: Cache a NULL acl when FUSE_GETXATTR returns -ENOSYS Eric W. Biederman
2018-02-26 23:53         ` [PATCH v7 5/7] fuse: Simplfiy the posix acl handling logic Eric W. Biederman
2018-02-26 23:53           ` Eric W. Biederman
     [not found]           ` <20180226235302.12708-5-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-27  9:00             ` Miklos Szeredi
2018-02-27  9:00           ` Miklos Szeredi
     [not found]             ` <CAOssrKeWvYpgj4_cgsRBL_kTOHyRS-9_mfO9JHP-JahgqFnfHQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-03-02 21:49               ` Eric W. Biederman
2018-03-02 21:49                 ` Eric W. Biederman
2018-02-26 23:53         ` [PATCH v7 6/7] fuse: Support fuse filesystems outside of init_user_ns Eric W. Biederman
2018-02-26 23:53           ` Eric W. Biederman
2018-02-26 23:53         ` [PATCH v7 7/7] fuse: Restrict allow_other to the superblock's namespace or a descendant Eric W. Biederman
2018-03-02 21:58         ` [PATCH v8 0/6] fuse: mounts from non-init user namespaces Eric W. Biederman
2018-02-26 23:52       ` [PATCH v7 3/7] fs/posix_acl: Document that get_acl respects ACL_DONT_CACHE Eric W. Biederman
     [not found]         ` <20180226235302.12708-3-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-27  1:13           ` Linus Torvalds
2018-02-27  1:13             ` Linus Torvalds
     [not found]             ` <CA+55aFySgJyR6JLcS9HLC9wEpWU1isdyTkchHxZHbJWsh7HFpg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-27  2:53               ` Eric W. Biederman
2018-02-27  2:53                 ` Eric W. Biederman
     [not found]                 ` <87r2p7rvn5.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-27  3:14                   ` Eric W. Biederman
2018-02-27  3:14                     ` Eric W. Biederman
     [not found]                     ` <87tvu3qg2b.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-02-27  3:41                       ` Linus Torvalds
2018-02-27  3:41                     ` Linus Torvalds
     [not found]                       ` <CA+55aFwPo7Pbq+3Oup-oo8MUFHeEpFXp7qr6z2PrzKp7S0ON+A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-03-02 19:53                         ` [RFC][PATCH] fs/posix_acl: Update the comments and support lightweight cache skipping Eric W. Biederman
2018-03-02 19:53                       ` Eric W. Biederman
2018-02-27  3:36                   ` [PATCH v7 3/7] fs/posix_acl: Document that get_acl respects ACL_DONT_CACHE Linus Torvalds
2018-02-27  3:36                     ` Linus Torvalds
2018-02-26 23:52       ` [PATCH v7 4/7] fuse: Cache a NULL acl when FUSE_GETXATTR returns -ENOSYS Eric W. Biederman
2018-02-26 23:53       ` [PATCH v7 7/7] fuse: Restrict allow_other to the superblock's namespace or a descendant Eric W. Biederman
2018-03-02 21:58       ` [PATCH v8 0/6] fuse: mounts from non-init user namespaces Eric W. Biederman
     [not found]         ` <87r2p287i8.fsf_-_-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-03-02 21:59           ` [PATCH v8 1/6] fs/posix_acl: Update the comments and support lightweight cache skipping Eric W. Biederman
2018-03-02 21:59             ` Eric W. Biederman
     [not found]             ` <20180302215919.27207-1-ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-03-05  9:53               ` Miklos Szeredi
2018-03-05  9:53             ` Miklos Szeredi
     [not found]               ` <CAOssrKf0cuxx1YLiwFJHSnzMOOoejjWWibs98Mb5KSXVSSXfOg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-03-05 13:53                 ` Eric W. Biederman
2018-03-05 13:53                   ` Eric W. Biederman
2018-03-02 21:59           ` [PATCH v8 2/6] fuse: Simplfiy the posix acl handling logic Eric W. Biederman
2018-03-02 21:59             ` Eric W. Biederman
2018-03-02 21:59           ` [PATCH v8 3/6] fuse: Remove the buggy retranslation of pids in fuse_dev_do_read Eric W. Biederman
2018-03-02 21:59             ` Eric W. Biederman
2018-03-02 21:59           ` [PATCH v8 4/6] fuse: Fail all requests with invalid uids or gids Eric W. Biederman
2018-03-02 21:59           ` [PATCH v8 5/6] fuse: Support fuse filesystems outside of init_user_ns Eric W. Biederman
2018-03-02 21:59           ` [PATCH v8 6/6] fuse: Restrict allow_other to the superblock's namespace or a descendant Eric W. Biederman
2018-03-02 21:59             ` Eric W. Biederman
2018-03-08 21:23           ` [PATCH v9 0/4] fuse: mounts from non-init user namespaces Eric W. Biederman
2018-03-08 21:23             ` Eric W. Biederman
2018-03-08 21:24             ` [PATCH v9 1/4] fuse: Remove the buggy retranslation of pids in fuse_dev_do_read Eric W. Biederman
     [not found]             ` <87ina6ntx0.fsf_-_-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-03-08 21:24               ` Eric W. Biederman
2018-03-08 21:24               ` [PATCH v9 2/4] fuse: Fail all requests with invalid uids or gids Eric W. Biederman
2018-03-08 21:24                 ` Eric W. Biederman
2018-03-08 21:24               ` [PATCH v9 3/4] fuse: Support fuse filesystems outside of init_user_ns Eric W. Biederman
2018-03-08 21:24               ` [PATCH v9 4/4] fuse: Restrict allow_other to the superblock's namespace or a descendant Eric W. Biederman
2018-03-20 16:25               ` [PATCH v9 0/4] fuse: mounts from non-init user namespaces Miklos Szeredi
2018-03-08 21:24             ` [PATCH v9 3/4] fuse: Support fuse filesystems outside of init_user_ns Eric W. Biederman
2018-03-08 21:24             ` [PATCH v9 4/4] fuse: Restrict allow_other to the superblock's namespace or a descendant Eric W. Biederman
2018-03-20 16:25             ` [PATCH v9 0/4] fuse: mounts from non-init user namespaces Miklos Szeredi
     [not found]               ` <CAOssrKebhX-nm06RAwep8HUUV4QpsAa=ZOgxdRyP=WF9p-=4Tw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-03-20 18:27                 ` Eric W. Biederman
2018-03-20 18:27                   ` Eric W. Biederman
2018-03-21  8:38                   ` Miklos Szeredi
     [not found]                   ` <87tvta38lu.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-03-21  8:38                     ` Miklos Szeredi
2018-03-02 21:59         ` [PATCH v8 4/6] fuse: Fail all requests with invalid uids or gids Eric W. Biederman
2018-03-02 21:59         ` [PATCH v8 5/6] fuse: Support fuse filesystems outside of init_user_ns Eric W. Biederman
2017-12-22 14:32 ` [PATCH 09/11] fuse: Restrict allow_other to the superblock's namespace or a descendant Dongsu Park
2017-12-23  3:50   ` Serge E. Hallyn
     [not found]   ` <d055925e5d5c0099e9e9c871004fb45fab67e4bc.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:50     ` Serge E. Hallyn
2018-02-19 23:16     ` Eric W. Biederman
2018-02-19 23:16       ` Eric W. Biederman
2017-12-22 14:32 ` [PATCH 10/11] fuse: Allow user namespace mounts Dongsu Park
     [not found]   ` <a26103156b3f6ba73b1e46c6f577f1bee74872d9.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  3:51     ` Serge E. Hallyn
2017-12-23  3:51       ` Serge E. Hallyn
2018-02-14 13:44     ` Miklos Szeredi
2018-02-14 13:44   ` Miklos Szeredi
     [not found]     ` <CAOssrKcHOp9OaCWRALsxe5MTk+tv7Gi5rPsHz2VLguzK-P+LMw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-15  8:46       ` Miklos Szeredi
2018-02-15  8:46     ` Miklos Szeredi
2017-12-22 14:32 ` [PATCH 11/11] evm: Don't update hmacs in user ns mounts Dongsu Park
2017-12-22 14:32   ` Dongsu Park
     [not found]   ` <1f2233a1a028f1eb1e9bea7d06efa6d34e69e752.1512041070.git.dongsu-lYLaGTFnO9sWenYVfaLwtA@public.gmane.org>
2017-12-23  4:03     ` Serge E. Hallyn
2017-12-23  4:03       ` Serge E. Hallyn
2017-12-23  4:03       ` Serge E. Hallyn
     [not found]       ` <20171223040348.GK6837-7LNsyQBKDXoIagZqoN9o3w@public.gmane.org>
2017-12-24  5:12         ` Mimi Zohar
2017-12-24  5:12       ` Mimi Zohar
2017-12-24  5:12         ` Mimi Zohar
2017-12-24  5:12         ` Mimi Zohar
     [not found]         ` <1514092328.5221.116.camel-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
2017-12-24  5:56           ` Mimi Zohar
2017-12-24  5:56         ` Mimi Zohar
2017-12-24  5:56           ` Mimi Zohar
2017-12-24  5:56           ` Mimi Zohar
2017-12-25  7:05 ` [PATCH v5 00/11] FUSE mounts from non-init user namespaces Eric W. Biederman
     [not found]   ` <877etbcmnd.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2018-01-09 15:05     ` Dongsu Park
2018-01-09 15:05   ` Dongsu Park
2018-01-18 14:58     ` Alban Crequy
     [not found]       ` <CADZs7q438szfwd-kaaRDnpDFrmno3zy7Zq+6EsnotW8bS0vrTA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-19 23:09         ` Eric W. Biederman
2018-02-19 23:09           ` Eric W. Biederman
     [not found]     ` <CANxcAMvwwiPXBTKmTM9sEo8Y1T--V7fNaFqzHfyEvwvaYQV60A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-01-18 14:58       ` Alban Crequy

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