[Devel] [PATCH RHEL10 COMMIT] fixup! ve/sunrpc: Prohibit mounting rpc_pipefs in CT without nfsd feature

Konstantin Khorenko khorenko at virtuozzo.com
Fri Jun 5 21:32:03 MSK 2026


The commit is pushed to "branch-rh10-6.12.0-55.52.1.5.x.vz10-ovz" and will appear at git at bitbucket.org:openvz/vzkernel.git
after rh10-6.12.0-55.52.1.5.29.vz10
------>
commit 3b4dec301a7ff8f904deeb77385d8d43cbaf5950
Author: Vladimir Riabchun <vladimir.riabchun at virtuozzo.com>
Date:   Tue Jun 2 21:10:28 2026 +0000

    fixup! ve/sunrpc: Prohibit mounting rpc_pipefs in CT without nfsd feature
    
    get_exec_env() is dereferenced without check.
    
    https://virtuozzo.atlassian.net/browse/VSTOR-130116
    
    Feature: !CONFIG_VE build
    Signed-off-by: Vladimir Riabchun <vladimir.riabchun at virtuozzo.com>
    Reviewed-by: Vasileios Almpanis <vasileios.almpanis at virtuozzo.com>
---
 net/sunrpc/rpc_pipe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 2fcf10fc4bcdc..208de401ea9bb 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1437,7 +1437,7 @@ static const struct fs_context_operations rpc_fs_context_ops = {
 
 static int rpc_init_fs_context(struct fs_context *fc)
 {
-	if (!(get_exec_env()->features & VE_FEATURE_NFSD))
+	if (!(get_exec_env() && get_exec_env()->features & VE_FEATURE_NFSD))
 		return -ENODEV;
 
 	put_user_ns(fc->user_ns);


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