From: "Peter Müller" <peter.mueller@ipfire.org>
To: development@lists.ipfire.org
Subject: [PATCH] kernel: enable page poisoning on x86_64
Date: Tue, 14 Apr 2020 16:32:47 +0200 [thread overview]
Message-ID: <fcbd1c89-4a64-51e9-cce6-311b0df2a264@ipfire.org> (raw)
[-- Attachment #1: Type: text/plain, Size: 931 bytes --]
This is already active on i586 and prevents information leaks from freed
data.
Cc: Arne Fitzenreiter <arne.fitzenreiter(a)ipfire.org>
Signed-off-by: Peter Müller <peter.mueller(a)ipfire.org>
---
config/kernel/kernel.config.x86_64-ipfire | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire
index b16d13504..f6819859d 100644
--- a/config/kernel/kernel.config.x86_64-ipfire
+++ b/config/kernel/kernel.config.x86_64-ipfire
@@ -6387,7 +6387,9 @@ CONFIG_DEBUG_KERNEL=y
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
-# CONFIG_PAGE_POISONING is not set
+CONFIG_PAGE_POISONING=y
+# CONFIG_PAGE_POISONING_NO_SANITY is not set
+CONFIG_PAGE_POISONING_ZERO=y
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_OBJECTS is not set
--
2.16.4
next reply other threads:[~2020-04-14 14:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-14 14:32 Peter Müller [this message]
2020-04-14 14:33 ` Michael Tremer
2020-04-14 14:36 ` Peter Müller
2020-04-14 14:54 ` Michael Tremer
2020-04-14 15:04 ` Peter Müller
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