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-rw-r--r--sys/kern/vfs_syscalls.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index bef5829..f2ddf66 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1269,6 +1269,8 @@ kern_mknodat(struct thread *td, int fd, char *path, enum uio_seg pathseg,
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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