linux-kernel - [RFC PATCH v4 16/34] early kprobes: perhibit probing at early kprobe reserved area.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 2 Mar 2015 22:24:54 +0800
From:	Wang Nan <wangnan0@...wei.com>
To:	<rostedt@...dmis.org>, <masami.hiramatsu.pt@...achi.com>,
	<mingo@...e.hu>, <linux@....linux.org.uk>, <tixy@...aro.org>
CC:	<lizefan@...wei.com>, <linux-kernel@...r.kernel.org>,
	<x86@...nel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: [RFC PATCH v4 16/34] early kprobes: perhibit probing at early kprobe reserved area.

Puts early kprobe reserved area into kprobe blacklist.

Signed-off-by: Wang Nan <wangnan0@...wei.com>
---
 kernel/kprobes.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 2d178fc..7dbe8b2 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1405,6 +1405,12 @@ static bool within_kprobe_blacklist(unsigned long addr)
 	if (arch_within_kprobe_blacklist(addr))
 		return true;
 
+#ifdef CONFIG_EARLY_KPROBES
+	if (addr >= (unsigned long)__early_kprobes_start &&
+			addr < (unsigned long)__early_kprobes_end)
+		return true;
+#endif
+
 	if (!kprobes_blacklist_initialized)
 		return within_kprobe_blacklist_early(addr);
 
-- 
1.8.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/