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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2019-07-31 12:38:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-27 14:51:07 +0100 |
| commit | f16e29f000f1de1f3030566d5b8c69b4b59afc5b (patch) | |
| tree | 49bcf79e86a2441ee8635ddbbe94efcaa10313ec /arch | |
| parent | 57bc41eb3420b43823acc89745fe78ec5aa1585d (diff) | |
| download | linux-stable-f16e29f000f1de1f3030566d5b8c69b4b59afc5b.tar.gz linux-stable-f16e29f000f1de1f3030566d5b8c69b4b59afc5b.tar.bz2 linux-stable-f16e29f000f1de1f3030566d5b8c69b4b59afc5b.zip | |
ARM: 8896/1: VDSO: Don't leak kernel addresses
[ Upstream commit 3e07590e7248db951fed6a2039403b5a39010be7 ]
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 <geert+renesas@glider.be>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/vdso.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c index f4dd7f9663c1..e8cda5e02b4e 100644 --- a/arch/arm/kernel/vdso.c +++ b/arch/arm/kernel/vdso.c @@ -205,7 +205,6 @@ 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 *), |