git: 326836a1ebc6 - main - nullfs: do not allow bypass on copy_file_range()

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=326836a1ebc6ce9b28c8f2bc1d177a444fba8ea6

commit 326836a1ebc6ce9b28c8f2bc1d177a444fba8ea6
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2023-11-18 09:23:22 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2023-11-28 17:32:53 +0000

    nullfs: do not allow bypass on copy_file_range()
    
    There must be no callers of VOP_COPY_FILE_RANGE() except
    vn_copy_file_range(), which does enough to find the write-vnodes where
    to call the VOP.
    
    Reviewed by:    markj, Olivier Certner <olce.freebsd@certner.fr>
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D42603
---
 sys/fs/nullfs/null_vnops.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/fs/nullfs/null_vnops.c b/sys/fs/nullfs/null_vnops.c
index c05e3394a9a6..4747b1dd5b82 100644
--- a/sys/fs/nullfs/null_vnops.c
+++ b/sys/fs/nullfs/null_vnops.c
@@ -1177,5 +1177,6 @@ struct vop_vector null_vnodeops = {
 	.vop_vptofh =		null_vptofh,
 	.vop_add_writecount =	null_add_writecount,
 	.vop_vput_pair =	null_vput_pair,
+	.vop_copy_file_range =	VOP_PANIC,
 };
 VFS_VOP_VECTOR_REGISTER(null_vnodeops);