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-rw-r--r--fs/compat.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/compat.c b/fs/compat.c
index 5e374aad33f7..b543363dd625 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1420,12 +1420,17 @@ int compat_do_execve(char * filename,
{
struct linux_binprm *bprm;
struct file *file;
+ struct files_struct *displaced;
int retval;
+ retval = unshare_files(&displaced);
+ if (retval)
+ goto out_ret;
+
retval = -ENOMEM;
bprm = kzalloc(sizeof(*bprm), GFP_KERNEL);
if (!bprm)
- goto out_ret;
+ goto out_files;
retval = mutex_lock_interruptible(&current->cred_exec_mutex);
if (retval < 0)
@@ -1487,6 +1492,8 @@ int compat_do_execve(char * filename,
mutex_unlock(&current->cred_exec_mutex);
acct_update_integrals(current);
free_bprm(bprm);
+ if (displaced)
+ put_files_struct(displaced);
return retval;
out:
@@ -1506,6 +1513,9 @@ out_unlock:
out_free:
free_bprm(bprm);
+out_files:
+ if (displaced)
+ reset_files_struct(displaced);
out_ret:
return retval;
}