1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
From e2218c420f1aca6c8910f4ddd6df11815c137bdf Mon Sep 17 00:00:00 2001
From: Michael Karcher <sourceware-bugzilla@mkarcher.dialup.fu-berlin.de>
Date: Sat, 17 Feb 2024 22:47:58 +0100
Subject: [PATCH] Mitigation for "clone on sparc might fail with -EFAULT for no
valid reason"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Bug: https://www.mail-archive.com/debian-glibc@lists.debian.org/msg62592.html
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31394
See-also: https://lore.kernel.org/sparclinux/62f9be9d-a086-4134-9a9f-5df8822708af@mkarcher.dialup.fu-berlin.de/
Signed-off-by: Andreas K. Hüttel <dilfridge@gentoo.org>
(cherry picked from commit fa441cd6be9a34d81306d41defeefaa2ac31d0b8)
---
sysdeps/unix/sysv/linux/sparc/sparc32/clone.S | 3 +++
sysdeps/unix/sysv/linux/sparc/sparc64/clone.S | 3 +++
2 files changed, 6 insertions(+)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index b48aa96ea6..0b1af3203b 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -28,6 +28,9 @@
.text
ENTRY (__clone)
save %sp,-96,%sp
+ save %sp,-96,%sp
+ flushw
+ restore
cfi_def_cfa_register(%fp)
cfi_window_save
cfi_register(%o7, %i7)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index e6c4e12f47..48a7152f38 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -32,6 +32,9 @@
ENTRY (__clone)
save %sp, -192, %sp
+ save %sp, -192, %sp
+ flushw
+ restore
cfi_def_cfa_register(%fp)
cfi_window_save
cfi_register(%o7, %i7)
--
2.43.0
|
GitWeb
