[PATCH v2 05/63] nsfs: raise SB_I_NODEV and SB_I_NOEXEC
From: Christian Brauner <brauner@kernel.org>
Date: 2025-10-22 16:06:32
Also in:
bpf, cgroups, linux-fsdevel, lkml
Subsystem:
filesystems (vfs and infrastructure), the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
There's zero need for nsfs to allow device nodes or execution. Signed-off-by: Christian Brauner <brauner@kernel.org> --- fs/nsfs.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/nsfs.c b/fs/nsfs.c
index 0e3fe8fda5bf..363be226e357 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c@@ -589,6 +589,8 @@ static int nsfs_init_fs_context(struct fs_context *fc) struct pseudo_fs_context *ctx = init_pseudo(fc, NSFS_MAGIC); if (!ctx) return -ENOMEM; + fc->s_iflags |= SB_I_NOEXEC; + fc->s_iflags |= SB_I_NODEV; ctx->s_d_flags |= DCACHE_DONTCACHE; ctx->ops = &nsfs_ops; ctx->eops = &nsfs_export_operations;
--
2.47.3