Author: kib
Date: Fri Jul 22 17:25:28 2016
New Revision: 303194
URL: https://svnweb.freebsd.org/changeset/base/303194
Log:
MFC r302893:
Do not allow creation of char or block special nodes with VNOVAL dev_t.
Modified:
stable/10/sys/kern/vfs_syscalls.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/kern/vfs_syscalls.c
==============================================================================
--- stable/10/sys/kern/vfs_syscalls.c Fri Jul 22 17:24:36 2016
(r303193)
+++ stable/10/sys/kern/vfs_syscalls.c Fri Jul 22 17:25:28 2016
(r303194)
@@ -1269,6 +1269,8 @@ kern_mknodat(struct thread *td, int fd,
case S_IFCHR:
case S_IFBLK:
error = priv_check(td, PRIV_VFS_MKNOD_DEV);
+ if (error == 0 && dev == VNOVAL)
+ error = EINVAL;
break;
case S_IFMT:
error = priv_check(td, PRIV_VFS_MKNOD_BAD);
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