linux-kernel - [PATCH v2 2/4] uprobes: refuse uprobe on trap variants

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]

Message-ID: <20130322151758.GC20010@in.ibm.com>
Date:	Fri, 22 Mar 2013 20:47:58 +0530
From:	Ananth N Mavinakayanahalli <ananth@...ibm.com>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	oleg@...hat.com, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	benh@...nel.crashing.org, ppcdev <linuxppc-dev@...ts.ozlabs.org>
Subject: [PATCH v2 2/4] uprobes: refuse uprobe on trap variants

From: Ananth N Mavinakayanahalli <ananth@...ibm.com>

Refuse to place a uprobe if a trap variant already exists in the
file copy at the address.

Signed-off-by: Ananth N Mavinakayanahalli <ananth@...ibm.com>
---
 kernel/events/uprobes.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-3.9-rc3/kernel/events/uprobes.c
===================================================================
--- linux-3.9-rc3.orig/kernel/events/uprobes.c
+++ linux-3.9-rc3/kernel/events/uprobes.c
@@ -573,7 +573,7 @@ static int prepare_uprobe(struct uprobe
 		goto out;
 
 	ret = -ENOTSUPP;
-	if (is_swbp_insn((uprobe_opcode_t *)uprobe->arch.insn))
+	if (is_trap_insn((uprobe_opcode_t *)uprobe->arch.insn))
 		goto out;
 
 	ret = arch_uprobe_analyze_insn(&uprobe->arch, mm, vaddr);

--
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/