Repair the python tests for authenticated EFI capsules, which can be run
with sandbox_defconfig plus CONFIG_EFI_CAPSULE_AUTHENTICATE=y.
- Account for the reset changes done by commit 3e6f810006 ("efi_loader:
test/py: Reset system after capsule update on disk").
- Fix the capsule GUID typo introduced by commit 2e9c3c6965 ("test:
capsule: Modify the capsule tests to use GUID values for sandbox").
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
The OsIndications is a 64 bit variable, and the current code expects
the value of the variable to be 64 bit. Update the documentation to
reflect this fact.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The GetImageInfo function of the Firmware Mangement Protocol(FMP) gets
called initially to query the size of the image descriptor array that
would have to be allocated. During this call, the rest of the function
arguments, specifically pointers might be passed as NULL. Do not
populate the descriptor_count value before it is known that the call
to GetImageInfo has been made with the allocated buffer for the image
descriptors.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
"valu" should be "value".
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Since the power domain driver default select CONFIG_CLK, so we will
meet lots failures without CLK_IMX8MQ, so default select it.
Fixes: commit 4eb82c2e56 ("imx: power-domain: Get rid of SMCCC dependency")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Add a new device tree property "u-boot,version" in the chosen node to
pass the U-Boot version to the operating system.
This can be useful to implement a firmware upgrade procedure from the
operating system.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Nicolas Bidron and Nicolas Guigo reported the two bugs below:
"
----------BUG 1----------
In compiled versions of U-Boot that define CONFIG_IP_DEFRAG, a value of
`ip->ip_len` (IP packet header's Total Length) higher than `IP_HDR_SIZE`
and strictly lower than `IP_HDR_SIZE+8` will lead to a value for `len`
comprised between `0` and `7`. This will ultimately result in a
truncated division by `8` resulting value of `0` forcing the hole
metadata and fragment to point to the same location. The subsequent
memcopy will overwrite the hole metadata with the fragment data. Through
a second fragment, this can be exploited to write to an arbitrary offset
controlled by that overwritten hole metadata value.
This bug is only exploitable locally as it requires crafting two packets
the first of which would most likely be dropped through routing due to
its unexpectedly low Total Length. However, this bug can potentially be
exploited to root linux based embedded devices locally.
```C
static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
{
static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
static u16 first_hole, total_len;
struct hole *payload, *thisfrag, *h, *newh;
struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
uchar *indata = (uchar *)ip;
int offset8, start, len, done = 0;
u16 ip_off = ntohs(ip->ip_off);
/* payload starts after IP header, this fragment is in there */
payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
offset8 = (ip_off & IP_OFFS);
thisfrag = payload + offset8;
start = offset8 * 8;
len = ntohs(ip->ip_len) - IP_HDR_SIZE;
```
The last line of the previous excerpt from `u-boot/net/net.c` shows how
the attacker can control the value of `len` to be strictly lower than
`8` by issuing a packet with `ip_len` between `21` and `27`
(`IP_HDR_SIZE` has a value of `20`).
Also note that `offset8` here is `0` which leads to `thisfrag = payload`.
```C
} else if (h >= thisfrag) {
/* overlaps with initial part of the hole: move this hole */
newh = thisfrag + (len / 8);
*newh = *h;
h = newh;
if (h->next_hole)
payload[h->next_hole].prev_hole = (h - payload);
if (h->prev_hole)
payload[h->prev_hole].next_hole = (h - payload);
else
first_hole = (h - payload);
} else {
```
Lower down the same function, execution reaches the above code path.
Here, `len / 8` evaluates to `0` leading to `newh = thisfrag`. Also note
that `first_hole` here is `0` since `h` and `payload` point to the same
location.
```C
/* finally copy this fragment and possibly return whole packet */
memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
```
Finally, in the above excerpt the `memcpy` overwrites the hole metadata
since `thisfrag` and `h` both point to the same location. The hole
metadata is effectively overwritten with arbitrary data from the
fragmented IP packet data. If `len` was crafted to be `6`, `last_byte`,
`next_hole`, and `prev_hole` of the `first_hole` can be controlled by
the attacker.
Finally the arbitrary offset write occurs through a second fragment that
only needs to be crafted to write data in the hole pointed to by the
previously controlled hole metadata (`next_hole`) from the first packet.
### Recommendation
Handle cases where `len` is strictly lower than 8 by preventing the
overwrite of the hole metadata during the memcpy of the fragment. This
could be achieved by either:
* Moving the location where the hole metadata is stored when `len` is
lower than `8`.
* Or outright rejecting fragmented IP datagram with a Total Length
(`ip_len`) lower than 28 bytes which is the minimum valid fragmented IP
datagram size (as defined as the minimum fragment of 8 octets in the IP
Specification Document:
[RFC791](https://datatracker.ietf.org/doc/html/rfc791) page 25).
----------BUG 2----------
In compiled versions of U-Boot that define CONFIG_IP_DEFRAG, a value of
`ip->ip_len` (IP packet header's Total Length) lower than `IP_HDR_SIZE`
will lead to a negative value for `len` which will ultimately result in
a buffer overflow during the subsequent `memcpy` that uses `len` as it's
`count` parameter.
This bug is only exploitable on local ethernet as it requires crafting
an invalid packet to include an unexpected `ip_len` value in the IP UDP
header that's lower than the minimum accepted Total Length of a packet
(21 as defined in the IP Specification Document:
[RFC791](https://datatracker.ietf.org/doc/html/rfc791)). Such packet
would in all likelihood be dropped while being routed to its final
destination through most routing equipment and as such requires the
attacker to be in a local position in order to be exploited.
```C
static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
{
static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
static u16 first_hole, total_len;
struct hole *payload, *thisfrag, *h, *newh;
struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
uchar *indata = (uchar *)ip;
int offset8, start, len, done = 0;
u16 ip_off = ntohs(ip->ip_off);
/* payload starts after IP header, this fragment is in there */
payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
offset8 = (ip_off & IP_OFFS);
thisfrag = payload + offset8;
start = offset8 * 8;
len = ntohs(ip->ip_len) - IP_HDR_SIZE;
```
The last line of the previous excerpt from `u-boot/net/net.c` shows
where the underflow to a negative `len` value occurs if `ip_len` is set
to a value strictly lower than 20 (`IP_HDR_SIZE` being 20). Also note
that in the above excerpt the `pkt_buff` buffer has a size of
`CONFIG_NET_MAXDEFRAG` which defaults to 16 KB but can range from 1KB to
64 KB depending on configurations.
```C
/* finally copy this fragment and possibly return whole packet */
memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
```
In the above excerpt the `memcpy` overflows the destination by
attempting to make a copy of nearly 4 gigabytes in a buffer that's
designed to hold `CONFIG_NET_MAXDEFRAG` bytes at most which leads to a DoS.
### Recommendation
Stop processing of the packet if `ip_len` is lower than 21 (as defined
by the minimum length of a data carrying datagram in the IP
Specification Document:
[RFC791](https://datatracker.ietf.org/doc/html/rfc791) page 34)."
Add a check for ip_len lesser than 28 and stop processing the packet
in this case.
Such a check covers the two reported bugs.
Reported-by: Nicolas Bidron <nicolas.bidron@nccgroup.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
The AArch64 TCR_ELx register is a 64-bit register, and many newer
architecture features use bits in the upper half. So far U-Boot was
igorant of those bits, trying to leave them alone.
However, in an effort to set bit 31 to 1, it failed doing so, because
the compiler sign-extended "1 << 31", so that all bits[63:31] got set.
Older ARMv8.0 cores don't define anything dangerous up there, but newer
architecture revisions do, and setting all those bits will end badly:
=================
$ qemu-system-aarch64 -cpu max ....
U-Boot 2022.07-rc1 (May 09 2022 - 15:21:00 +0100)
DRAM: 1.5 GiB
================= (hangs here)
Defining TCR_ELx_RSVD to "1U << 31" avoids the sign-extension, so all
upper bits stay at a safe 0 value. This means no more surprises when
U-Boot runs on a more capable CPU core.
Reported-by: Balaji Anandapadmanaban <Balaji.Anandapadmanaban@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Tested-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Peter Collingbourne <pcc@google.com>
If the device fails to probe - for example, when there is no
ethaddr set - then the private data is automatically freed
but the mdiobus remains registered.
Fixes: 1e354cb393 ("drivers: net: fsl_enetc: register internal MDIO bus")
Signed-off-by: Michael Walle <michael@walle.cc>
Commit b1a14f8a1c ("UBIFS: Change ubifsload to not read beyond the
requested size") added optimization to do not read more bytes than it is
really needed. But this commit introduced incorrect handling of the hole at
the end of file. This logic cause U-Boot to crash or lockup when trying to
read from the ubifs filesystem.
When read_block() call returns -ENOENT error (not an error, but the hole)
then dn-> structure is not filled and contain garbage. So using of dn->size
for memcpy() argument cause that U-Boot tries to copy unspecified amount of
bytes from possible unmapped memory. Which randomly cause lockup of P2020
CPU.
Fix this issue by copying UBIFS_BLOCK_SIZE bytes from read buffer when
dn->size is not available. UBIFS_BLOCK_SIZE is the size of the buffer
itself and read_block() fills buffer by zeros when it returns -ENOENT.
This patch fixes ubifsload on P2020.
Fixes: b1a14f8a1c ("UBIFS: Change ubifsload to not read beyond the requested size")
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
UEFI:
* fix a problem in loading an image from a short-path
* fix building the bootmenu command for CONFIG_EFI_LOADER=n
* correct the bootefi command syntax
* add firmware management protocol to the documentation
Others:
* bootmenu: fix bootmenu title handling
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Merge tag 'efi-2022-07-rc4-3' of https://source.denx.de/u-boot/custodians/u-boot-efi
Pull request for efi-2022-07-rc4-3
UEFI:
* fix a problem in loading an image from a short-path
* fix building the bootmenu command for CONFIG_EFI_LOADER=n
* correct the bootefi command syntax
* add firmware management protocol to the documentation
Others:
* bootmenu: fix bootmenu title handling
Tested-by: Pali Rohár <pali@kernel.org> [n900, for bootmenu working as before]
The commit a3d0aa87ac ("bootmenu: update bootmenu_entry structure")
changes the bootmenu title type from char to u16(UTF16 string)
to support EFI based system. If EFI_LOADER is not enabled,
printf("%ls") is not supported, so bootmenu does not appear
correctly.
This commit changes the type of menu title from u16(UTF16) to
utf-8 string and EFI strings is conveted into utf-8.
Fixes: a3d0aa87ac ("bootmenu: update bootmenu_entry structure")
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Tested-by: Pali Rohar <pali@kernel.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The firmware management protocol can be used to manage device firmware.
U-Boot can be configured to provide an implementation.
Document the related functions in the API section.
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This fixes the following warnings:
./lib/efi_loader/efi_firmware.c:283: warning: Function parameter or member 'package_version' not described in 'efi_firmware_fit_get_image_info'
./lib/efi_loader/efi_firmware.c:283: warning: Function parameter or member 'package_version_name' not described in 'efi_firmware_fit_get_image_info'
./lib/efi_loader/efi_firmware.c:369: warning: bad line: firmware image
./lib/efi_loader/efi_firmware.c:395: warning: Function parameter or member 'package_version' not described in 'efi_firmware_raw_get_image_info'
./lib/efi_loader/efi_firmware.c:395: warning: Function parameter or member 'package_version_name' not described in 'efi_firmware_raw_get_image_info'
Signed-off-by: Vincent Stehlé <vincent.stehle@arm.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit fixes the following compile warnings
for the documentation.
./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Booting from a short-form device path which starts with the first element
being a File Path Media Device Path failed because it doesn't contain
any valid device with simple file system protocol and efi_dp_find_obj()
in efi_load_image_from_path() will return NULL.
For instance,
/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/Scsi(0,0)/\helloworld.efi
-> shortened version: /\helloworld.efi
With this patch applied, all the media devices with simple file system
protocol are enumerated and the boot manager attempts to boot temporarily
generated device paths one-by-one.
This new implementation is still a bit incompatible with the UEFI
specification in terms of:
* not creating real boot options
* not try
"If a device does not support the EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, but
supports the EFI_BLOCK_IO_PROTOCOL protocol, then the EFI Boot Service
ConnectController must be called for this device with DriverImageHandle
and RemainingDevicePath set to NULL and the Recursive flag is set to TRUE."
(See section 3.1.2 "Load Option Processing".)
But it still gives us a closer and better solution than the current.
Fixes: commit 9cdf470274 ("efi_loader: support booting via short-form device-path")
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This helper function will be used to determine if the device is
removable media, initially for handling a short-path loading.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
For indicating the address and size of a memory region other commands use a
<addr>[:<size>] syntax. Do the same for bootefi.
Fixes: 2058983689 ("cmd: bootefi: restore ability to boot arbitrary blob")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Changing the console timeout to 500 ms without restoring the original value
leads to failures in other tests. As the console timeout change is not
necessary for the text input protocol tests remove it.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The commit 2158b0da22 ("bootmenu: add Kconfig option
not to enter U-Boot console") disables to enter U-Boot
console from bootmenu as default, this change affects the
existing bootmenu users.
This commit reverts the default behavior, the bootmenu can
enter U-Boot console same as before.
CMD_BOOTMENU_ENTER_UBOOT_CONSOLE is renamed
BOOTMENU_DISABLE_UBOOT_CONSOLE and depends on
AUTOBOOT_MENU_SHOW.
Fixes: 2158b0da22 ("bootmenu: add Kconfig option not to enter U-Boot console")
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Tested-by: Pali Rohar <pali@kernel.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This documents some additional options which can be used with valgrind, as
well as directions for future work. It also fixes up inline literals to
actually be inline literals (and not italics). The content of this
documentation is primarily adapted from [1].
[1] https://lore.kernel.org/u-boot/57cb4b49-fa30-1194-9ac3-faa53e8033bd@gmail.com/
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
The following Python packages are used by U-Boot, too:
* python3-asteval
* python3-subunit
* python3-testtools
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Image created by LTO is not friendly to debugger, let's document this.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Mention CONFIG_CC_OPTIMIZE_FOR_DEBUG and LLDB.
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
It should be CONFIG_SANDBOX_RAM_SIZE_MB.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
There are no defined instruction sequences in include/valgrind.h for
Risc-V, so CONFIG_VALGRIND will do nothing on this arch (and possibly won't
compile?). Update Kconfig accordingly.
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
In the bootmenu unit test the console timeout is set to 500 ms.
Other tests rely on the original timeout. Ensure that the original value
is restored.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
alloc_read_gpt_entries() writes differentiated error messages.
The caller is_gpt_valid() should not write an extra possibly wrong message.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
- Fixes for pytest timeout in CI, missing dependency on PCI for the
e1000 driver, fix for CVE-2022-30767 (NFS), TI K3 AM642 DTS bugfix,
MAINTAINERS updates, mksquashfs version check fix.
This driver depends on PCI. Update the Kconfig accordingly.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Testing with mksquasshfs 4.5.1 results in an error
ValueError: could not convert string to float: '4.5.1'
Version 4.10 would be considered to be lower than 4.4.
Fixes: 04c9813e95 ("test/py: rewrite common tools for SquashFS tests")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Since commit dffdb1f8eb ("board: ti: am64x: Use fdt functions
for ram and bank init") ddr_init() and dram_bank_init() have
switched to fdtdec for getting the memory configuration from
the am64xx dts files instead of using hardcoded values. This
requires an accessible memory node in SPL as we already have
in k3-am642-r5-evm.dts.
Make the memory node accessible in A53 SPL for both am642-sk
and am642-evm and in am642-sk R5 SPL.
Signed-off-by: Georgi Vlaev <g-vlaev@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add the rest of the ASPEED drivers that are in tree. Most are obvious,
except for ftgmac100 which matches the register layout used in the
ASPEED SoC.
I am the Linux maintainer for the ASPEED kernel port, and help maintain
the fork of u-boot used for OpenBMC, so add myself as a reviewer so I
can stay informed about u-boot changes.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
This patch mitigates the vulnerability identified via CVE-2019-14196.
The previous patch was bypassed/ineffective, and now the vulnerability
is identified via CVE-2022-30767. The patch removes the sanity check
introduced to mitigate CVE-2019-14196 since it's ineffective.
filefh3_length is changed to unsigned type integer, preventing negative
numbers from being used during comparison with positive values during
size sanity checks.
Signed-off-by: Andrea zi0Black Cappa <zi0Black@protonmail.com>
Reset the console timeout value as some tests may change its default
value during the execution.
This fixes the random case timeout issue seen in the U-Boot CI.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Set kernel_comp_addr_r and kernel_comp_size for compressed kernel.
Adjust existing addresses for ramdisk, so that kernel_comp_addr_r
comes before the ramdisk image, since the decompressed kernel size
is known to us. This way we can allow big ramdisk image to be loaded.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Set kernel_comp_addr_r and kernel_comp_size for compressed kernel.
Adjust existing addresses for ramdisk, so that kernel_comp_addr_r
comes before the ramdisk image, since the decompressed kernel size
is known to us. This way we can allow big ramdisk image to be loaded.
Update unleashed.rst to remove the manual environment configuration
for compressed kernel boot.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Move kernel_comp_addr_r to an address that comes before the ramdisk
image, since the decompressed kernel size is known to us. This way
we can allow big ramdisk image to be loaded.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Clean up asm/io.h by
- removing commented code
- removing outdated comments
- removing unused definitions (for mem_isa, mem_pci)
This massively improves the readability of the file.
Suggested by commits:
7ab2e47d27 ("arm: Clean up asm/io.h")
909d0399a5 ("ARM: asm/io.h: kill off confusing #ifdef __mem_pci block")
Signed-off-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Commit ba1ed5b022 ("Convert CONFIG_ARCH_MAP_SYSMEM to Kconfig") clearly
defined that this option is available for SANDBOX (was also for already
removed NDS32). That's why there is no way how this code can be enabled
with current Kconfig layout for riscv.
Based on this removing this code.
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The sbi command displays the ID of the implementation of the RISC-V
Supervisor Binary Interface Specification. A new ID for Coffer has recently
been added.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Disable BINMAN_FDT for ae350 boards which don't actually use it.
Fixes: 836eac7c6f ("fdt: Make OF_BOARD a bool option")
Signed-off-by: Rick Chen <rick@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
