From: Geert Uytterhoeven Date: Wed, 31 Jul 2019 11:38:48 +0000 (+0100) Subject: ARM: 8896/1: VDSO: Don't leak kernel addresses X-Git-Tag: v5.4-rc1~79^2~15 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=3e07590e7248db951fed6a2039403b5a39010be7;p=linux.git ARM: 8896/1: VDSO: Don't leak kernel addresses Since commit ad67b74d2469d9b8 ("printk: hash addresses printed with %p"), an obfuscated kernel pointer is printed at every boot if debugging is enabled: vdso: 1 text pages at base (____ptrval____) Remove the print completely, as it's useless without the address. Based on commit 0f1bf7e39822476b ("arm64/vdso: don't leak kernel addresses"). Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p") Signed-off-by: Geert Uytterhoeven Signed-off-by: Russell King --- diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c index 8872acf9ff99..9bf16c93ee6a 100644 --- a/arch/arm/kernel/vdso.c +++ b/arch/arm/kernel/vdso.c @@ -194,7 +194,6 @@ static int __init vdso_init(void) } text_pages = (vdso_end - vdso_start) >> PAGE_SHIFT; - pr_debug("vdso: %i text pages at base %p\n", text_pages, vdso_start); /* Allocate the VDSO text pagelist */ vdso_text_pagelist = kcalloc(text_pages, sizeof(struct page *),