The following patch modifies create_new_namespaces() to also use the
errors returned by the copy_*_ns routines and not to systematically
return ENOMEM.
Signed-off-by: Cedric Le Goater <[email protected]>
Cc: Serge E. Hallyn <[email protected]>
Cc: Badari Pulavarty <[email protected]>
Cc: Pavel Emelianov <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Eric W. Biederman <[email protected]>
---
kernel/nsproxy.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
Index: 2.6.22-rc4-mm2/kernel/nsproxy.c
===================================================================
--- 2.6.22-rc4-mm2.orig/kernel/nsproxy.c
+++ 2.6.22-rc4-mm2/kernel/nsproxy.c
@@ -58,30 +58,41 @@ static struct nsproxy *create_new_namesp
struct fs_struct *new_fs)
{
struct nsproxy *new_nsp;
+ int err;
new_nsp = clone_nsproxy(tsk->nsproxy);
if (!new_nsp)
return ERR_PTR(-ENOMEM);
new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, new_fs);
- if (IS_ERR(new_nsp->mnt_ns))
+ if (IS_ERR(new_nsp->mnt_ns)) {
+ err = PTR_ERR(new_nsp->mnt_ns);
goto out_ns;
+ }
new_nsp->uts_ns = copy_utsname(flags, tsk->nsproxy->uts_ns);
- if (IS_ERR(new_nsp->uts_ns))
+ if (IS_ERR(new_nsp->uts_ns)) {
+ err = PTR_ERR(new_nsp->uts_ns);
goto out_uts;
+ }
new_nsp->ipc_ns = copy_ipcs(flags, tsk->nsproxy->ipc_ns);
- if (IS_ERR(new_nsp->ipc_ns))
+ if (IS_ERR(new_nsp->ipc_ns)) {
+ err = PTR_ERR(new_nsp->ipc_ns);
goto out_ipc;
+ }
new_nsp->pid_ns = copy_pid_ns(flags, tsk->nsproxy->pid_ns);
- if (IS_ERR(new_nsp->pid_ns))
+ if (IS_ERR(new_nsp->pid_ns)) {
+ err = PTR_ERR(new_nsp->pid_ns);
goto out_pid;
+ }
new_nsp->user_ns = copy_user_ns(flags, tsk->nsproxy->user_ns);
- if (IS_ERR(new_nsp->user_ns))
+ if (IS_ERR(new_nsp->user_ns)) {
+ err = PTR_ERR(new_nsp->user_ns);
goto out_user;
+ }
return new_nsp;
@@ -99,7 +110,7 @@ out_uts:
put_mnt_ns(new_nsp->mnt_ns);
out_ns:
kfree(new_nsp);
- return ERR_PTR(-ENOMEM);
+ return ERR_PTR(err);
}
/*
-
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