With a10a204aab ("kernel: make ubi auto-attach check for a tar file
magic") the check for the magic was added without considering a failing
mtd_read(). If the read fails, no check is done and the mount code is
called straight away.
Failing with an error message for such cases seems to me the cleaner way,
as it would allow to spot hidden/workaround issues.
Signed-off-by: Mathias Kresin <dev@kresin.me>
(backported from 3716b5e4e6)
(rebased patches)
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
The first block(s) of the ubi mtd device might be bad. We need to take
care on our own to skip the bad block(s) and read the next one(s).
Don't treat recoverable read errors as fatal and check for the UBI magic
if the data of a block could be recovered using ECC or similar.
Signed-off-by: Mathias Kresin <dev@kresin.me>
(backported from 0ac91d82ed)
(rebased patches)
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Move the put_mtd_device() called on multiple error conditions to a goto
label to use it later for more error conditions.
The early return on failed open of the mtd device and mismatching mtd
type allows to get rid of one level of indentation. By jumping to the
cleanup code, a refcount bug is fixed for the wrong flash type condition.
While at it, make clear that we only check for the UBI magic if the read
from flash was successful.
Signed-off-by: Mathias Kresin <dev@kresin.me>
(backported from fdf6760cda)
(rebased patches)
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Newer kernels have a patch that implements compatible functionality
directly. Adjust the attribute of our own patch in preparation for
dropping it later
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(backported from 41a1c1af4b)
There was a bug in ubifs related to the O_TMPFILE. When reapplying
changes after power cut data could be lost. This problem was exposed by
overlayfs and the upstream commit 3a1e819b4e80 ("ovl: store file handle
of lower inode on copy up").
This fixes a regression introduced when switching from 4.9 to 4.14.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit c6a1bcac16)
Newer batches of several Mikrotik boards contain this yet-unsupported
flash chip, for instance:
- rb941-2nd (hAP lite)
- rb952ui-5ac2nd (hAP ac lite)
- RBM33G
and probably other Mikrotik boards need this patch as well.
The patch was submitted upstream by Robert Marko: https://patchwork.ozlabs.org/patch/934181/
Closes: FS#1715
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
Cc: Robert Marko <robimarko@gmail.com>
[Rebased + refreshed on current kernels]
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
starting from upstream commit 577b4eb23811 ("ubi: Reject MLC NAND")
it is not allowed to use UBI and UBIFS on a MLC flavoured NAND flash chip. [1]
According to David Oberhollenzer [2]:
The real problem is that on MLC NAND, pages come in pairs.
Multiple voltage levels inside a single, physical memory cell are used to
encode more than one bit. Instead of just having pages that are twice as big,
the flash exposes them as two different pages. Those pages are usually not
ordered sequentially either, but according to a vendor/device specific
pairing scheme.
Within OpenWrt, devices utilizing this type of flash,
combined with UBI(fs) will be bricked when a user upgrades
from 17.01.4 to a newer version as the MLC will be refused.
As these devices are currently advertised as supported by OpenWrt,
we should at least maintain the original state during the lifecycle
of the current releases.
Support can be gracefully ended when a new release-branch is created.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.e>
[1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v4.14.77&id=577b4eb23811dfc8e38924dc476dbc866be74253
[2] https://lore.kernel.org/patchwork/patch/920344/
Refreshed all patches.
Altered patches:
- 666-Add-support-for-MAP-E-FMRs-mesh-mode.patch
New symbol for arm targets:
- HARDEN_BRANCH_PREDICTOR
Compile-tested on: cns3xxx, imx6, x86_64
Runtime-tested on: cns3xxx, imx6, x86_64
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
Compaction is the only memory management component to form high order (larger
physically contiguous) memory blocks reliably. The page allocator relies on
compaction heavily and the lack of the feature can lead to unexpected OOM
killer invocations for high order memory requests. You shouldn't disable this
option unless there really is a strong reason for it.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
This fixes regression introduced in kernel 4.14 and makes bcm53xx revert
obsolete.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 43d36606d6)
The intention of 967b6be118 ("ar8327: Add workarounds for AR8337
switch") was to remove the register fixups for AR8337. But instead they
were removed for AR8327.
The RGMII RX delay is forced even if the port is used as phy instead of
mac, which results in no package flow at least for one board.
Fixes: FS#1664
Signed-off-by: Mathias Kresin <dev@kresin.me>
The following patch was integrated upstream:
* target/linux/generic/backport-4.9/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch
This fixes tries to work around the following security problems:
* CVE-2018-3620 L1 Terminal Fault OS, SMM related aspects
* CVE-2018-3646 L1 Terminal Fault Virtualization related aspects
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
They're already in linux.git, so they shouldn't be in pending.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
(cherry picked from commit 14b6c72541)
The previous round of fixes for the 82574 chip cause an issue with
emulated e1000e devices in VMware ESXi 6.5. It also contains changes
that are not strictly necessary. These patches fix the issues introduced
in the previous series, revert the unnecessary changes to avoid
unforeseen fallout, and avoid a case where interrupts can be missed.
The final two patches of this series are already in the kernel, so no
need to include them here.
Patchwork: https://patchwork.ozlabs.org/cover/881776/
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
(cherry picked from commit ef025e6417)
Backport an upstream fix for a remotely exploitable TCP denial of service
flaw in Linux 4.9+.
The fixes are included in Linux 4.14.59 and later but did not yet end up in
version 4.9.118.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit fefe1da440)
