CVE-2018-25032 on u-boot zlib
This is to report that CVE is detected during u-boot scanning. Sending to open mailing list as get_maintainer suggested. The current zlib version used in u-boot contains CVE-2018-25032 [1]. Corresponding fix in zlib mainline has been addressed in v1.2.12 [2]. It is required to upgrade zlib in u-boot to that version or later to mitigate the CVE. [1] https://www.cve.org/CVERecord?id=CVE-2018-25032 [2] https://github.com/madler/zlib/commit/5c44459c3b28a9bd3283aaceab7c615f8020c531 - Yau Wai
Re: [U-Boot] [PATCH] nios2: 10m50: Add CPU pre-relocation in device tree
Hi all, this patch has been sent for a while. I did cc the patch to the u-boot custodian for Nios II, Thomas Chou. Can I know how can I get this patch reviewed and merged sooner? Thank you. ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] Nios II 10m50 is not working
Hi Kirill,
Yes I did manage to debug using GDB and found the issue is with the device tree
dm-pre-reloc for CPU. Thanks for confirming this.
I sent the patch so we can have fix for the 10m50 board. I am using the golden
hardware reference design which has MMU enabled.
Best regards,
Yau Wai
-Original Message-
From: Kirill Smirnov [mailto:kirill.k.smir...@gmail.com]
Sent: Wednesday, July 26, 2017 6:00 PM
To: Gan, Yau Wai <yau.wai@intel.com>; u-boot@lists.denx.de
Subject: [U-Boot] Nios II 10m50 is not working
Hi, Yau
I had a very similar problem with my project. It was sufficient for me to add
"u-boot,dm-pre-reloc" stanza to cpu node only. This is necessary to properly
setup mmu/nommu-related memory mappings. Other nodes remain unchanged.
The resulting cpu node (omitting details) is as follows:
cpu: cpu@0x0 {
device_type = "cpu";
compatible = "altr,nios2-16.0", "altr,nios2-1.1";
reg = <0x>;
u-boot,dm-pre-reloc;
}
This works for my custom no-mmu project. Unfortunately, I cannot test this
solution on other boards.
-------
On Thu Jul 6 14:30:54 UTC 2017 Gan, Yau Wai wrote:
I tried adding the dm-pre-reloc line to every node and sub-node, but it doesn’t
help.
On 06/07/2017, 8:26 PM, "Lothar Waßmann" wrote:
>Hi,
>
>On Thu, 6 Jul 2017 10:32:57 + Gan, Yau Wai wrote:
>> U-boot for Nios II on the 10m50 dev board is not functioning. The serial
>> terminal prints nothing upon booting up. The u-boot image is loaded via
>> GDB/JTAG to the FPGA on-chip RAM.
>>
>> Bisect activities were carried and discovered that the change from using
>> dm_scan_fdt_node to dm_scan_fdt_dev in the simple_bus.c. This leads to
>> suspecting the 10m50_devboard.dts need update to include
>> "u-boot,dm-pre-reloc".
>>
>u-boot,dm-pre-reloc has to be present in each item of the DT path
>leading to the node where you need it.
>
>
>Lothar Waßmann
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[U-Boot] [PATCH] nios2: 10m50: Add CPU pre-relocation in device tree
Tag CPU with dm-pre-reloc to enable driver before
relocation.
Signed-off-by: Gan, Yau Wai <yau.wai@intel.com>
Cc: Thomas Chou <tho...@wytron.com.tw>
---
arch/nios2/dts/10m50_devboard.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/nios2/dts/10m50_devboard.dts
b/arch/nios2/dts/10m50_devboard.dts
index 05eac30..461ae68 100644
--- a/arch/nios2/dts/10m50_devboard.dts
+++ b/arch/nios2/dts/10m50_devboard.dts
@@ -19,6 +19,7 @@
#size-cells = <0>;
cpu: cpu@0 {
+ u-boot,dm-pre-reloc;
device_type = "cpu";
compatible = "altr,nios2-1.1";
reg = <0x>;
--
2.7.4
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[U-Boot] Question about uclass_add function
For Nios II arch_cpu_init_dm, the uclass_first_device_err is called to find the UCLASS_CPU. This happened right after initf_dm during board_init_f. No SPL is involved here. Tracing through uclass_first_device_err function, I notice that it tries to find the uclass (via uclass_get) but not success. The code is then continue by adding the uclass (via uclass_add). Inside uclass_add, the code is able to locate memory address for u_boot_list_2_uclass_2_cpu ( which I believe it is doing the job right). However, it then try to init the uclass's dev_head by pointing the next and prev of the doubly linked list to itself. Upon returning to its caller, it then checks for dev_head is list_empty. This is true and the function return without error code, and a NULL pointer for the devp. This subsequently failed the Nios CPU dm init. May I consult if the above behavior is expected? What fix is needed if otherwise? Thank you. ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
Re: [U-Boot] Nios II 10m50 is not working
I tried adding the dm-pre-reloc line to every node and sub-node, but it doesn’t help. On 06/07/2017, 8:26 PM, "Lothar Waßmann" <l...@karo-electronics.de> wrote: >Hi, > >On Thu, 6 Jul 2017 10:32:57 + Gan, Yau Wai wrote: >> U-boot for Nios II on the 10m50 dev board is not functioning. The serial >> terminal prints nothing upon booting up. The u-boot image is loaded via >> GDB/JTAG to the FPGA on-chip RAM. >> >> Bisect activities were carried and discovered that the change from using >> dm_scan_fdt_node to dm_scan_fdt_dev in the simple_bus.c. This leads to >> suspecting the 10m50_devboard.dts need update to include >> "u-boot,dm-pre-reloc". >> >u-boot,dm-pre-reloc has to be present in each item of the DT path >leading to the node where you need it. > > >Lothar Waßmann ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
[U-Boot] Nios II 10m50 is not working
U-boot for Nios II on the 10m50 dev board is not functioning. The serial terminal prints nothing upon booting up. The u-boot image is loaded via GDB/JTAG to the FPGA on-chip RAM. Bisect activities were carried and discovered that the change from using dm_scan_fdt_node to dm_scan_fdt_dev in the simple_bus.c. This leads to suspecting the 10m50_devboard.dts need update to include "u-boot,dm-pre-reloc". However, changing the 10m50_devboard.dts still does not solve the problem. Any idea? Sorry if missing out any info and I will glad to supply. Thanks. ___ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
