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Message-Id: <20211013130446.237421-1-qtxuning1999@sjtu.edu.cn> Date: Wed, 13 Oct 2021 21:04:46 +0800 From: Guo Zhi <qtxuning1999@...u.edu.cn> To: unlisted-recipients:; (no To-header on input) Cc: Guo Zhi <qtxuning1999@...u.edu.cn>, linux-kernel@...r.kernel.org Subject: [PATCH] kernel/kallsym.c: Fix kernel pointer leak Pointers should be printed with %p rather than %px which printed kernel pointer directly. Change %px to %p to print the secured pointer. Signed-off-by: Guo Zhi <qtxuning1999@...u.edu.cn> --- kernel/kallsyms.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index 0ba87982d017..5a8ea50ce812 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -760,10 +760,10 @@ static int s_show(struct seq_file *m, void *p) */ type = iter->exported ? toupper(iter->type) : tolower(iter->type); - seq_printf(m, "%px %c %s\t[%s]\n", value, + seq_printf(m, "%p %c %s\t[%s]\n", value, type, iter->name, iter->module_name); } else - seq_printf(m, "%px %c %s\n", value, + seq_printf(m, "%p %c %s\n", value, iter->type, iter->name); return 0; } -- 2.33.0
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