linux-kernel - [PATCH 4.14 41/69] parisc: regs_return

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: <20190415183732.777623370@linuxfoundation.org>
Date:   Mon, 15 Apr 2019 20:58:59 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sven Schnelle <svens@...ckframe.org>,
        Helge Deller <deller@....de>
Subject: [PATCH 4.14 41/69] parisc: regs_return_value() should return gpr28

From: Sven Schnelle <svens@...ckframe.org>

commit 45efd871bf0a47648f119d1b41467f70484de5bc upstream.

While working on kretprobes for PA-RISC I was wondering while the
kprobes sanity test always fails on kretprobes. This is caused by
returning gpr20 instead of gpr28.

Signed-off-by: Sven Schnelle <svens@...ckframe.org>
Signed-off-by: Helge Deller <deller@....de>
Cc: stable@...r.kernel.org # 4.14+
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/parisc/include/asm/ptrace.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -22,7 +22,7 @@ unsigned long profile_pc(struct pt_regs
 
 static inline unsigned long regs_return_value(struct pt_regs *regs)
 {
-	return regs->gr[20];
+	return regs->gr[28];
 }
 
 #endif