auxv: require the target to be tracable (or yourself)
same as for environ, except that we didn't do any checks to prevent access after suid execve Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -281,9 +281,9 @@ static int proc_pid_cmdline(struct task_struct *task, char * buffer)
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static int proc_pid_auxv(struct task_struct *task, char *buffer)
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static int proc_pid_auxv(struct task_struct *task, char *buffer)
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{
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{
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int res = 0;
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struct mm_struct *mm = mm_for_maps(task);
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struct mm_struct *mm = get_task_mm(task);
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int res = PTR_ERR(mm);
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if (mm) {
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if (mm && !IS_ERR(mm)) {
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unsigned int nwords = 0;
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unsigned int nwords = 0;
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do {
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do {
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nwords += 2;
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nwords += 2;
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