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-rw-r--r--fs/proc/base.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c
index c282811..fc471b8 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -919,20 +919,18 @@ static ssize_t environ_read(struct file *file, char __user *buf,
if (!task)
goto out_no_task;
- if (!ptrace_may_access(task, PTRACE_MODE_READ))
- goto out;
-
ret = -ENOMEM;
page = (char *)__get_free_page(GFP_TEMPORARY);
if (!page)
goto out;
- ret = 0;
- mm = get_task_mm(task);
- if (!mm)
+ mm = mm_for_maps(task);
+ ret = PTR_ERR(mm);
+ if (!mm || IS_ERR(mm))
goto out_free;
+ ret = 0;
while (count > 0) {
int this_len, retval, max_len;
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