[PATCH 22/34] af_unix: handle idmapped mounts
From: Christian Brauner <hidden>
Date: 2020-10-29 00:37:40
Also in:
linux-api, linux-ext4, linux-fsdevel, linux-security-module, linux-unionfs, selinux
Subsystem:
networking [general], networking [unix sockets], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Linus Torvalds
When binding a non-abstract AF_UNIX socket it will gain a representation in the filesystem. Enable the socket infrastructure to handle idmapped mounts by using the new vfs_mapped_mknod() helper. Non-idmapped mounts will not see any altered behavior. Signed-off-by: Christian Brauner <redacted> --- net/unix/af_unix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 41c3303c3357..f79f7ce3243f 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c@@ -996,7 +996,7 @@ static int unix_mknod(const char *sun_path, umode_t mode, struct path *res) */ err = security_path_mknod(&path, dentry, mode, 0); if (!err) { - err = vfs_mknod(d_inode(path.dentry), dentry, mode, 0); + err = vfs_mapped_mknod(mnt_user_ns(path.mnt), d_inode(path.dentry), dentry, mode, 0); if (!err) { res->mnt = mntget(path.mnt); res->dentry = dget(dentry);
--
2.29.0