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When mmap is called, the code in correctly checks for p == MAP_FAILED.
But the resource cleanup at the end of busname_peek_message checks for
p == NULL, and if that's not true, munmap is called.
Therefore in error case, munmap is called with a MAP_FAILED argument
which can result in unexpected behaviour depending on sz's value.
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
It is possible to overflow uint64_t while validating the header of
a journal file. To prevent this, the addition itself is checked to
be within the limits of UINT64_MAX first.
To keep this readable, I have introduced two stack variables which
hold the converted values during validation.
It is useful for desktop environments to be able to show Caps-Lock or
Num-Lock status changes as an on-screen display when using a keyboard
that doesn't have LEDs for this.
Closes: #5559
The legacy *.pkla files are not required when running against polkit ≥ 106,
and we want to avoid shipping files in /var if possible (but pkla files
can only be in /etc/ or /var).
Only install the *.pkla files if we detect an old polkit version during
configure. Don't install them if polkit isn't installed during build, as
distributions other than Debian-based ones have moved to the new polkit
long ago.
Fixes#5523
We *do* have the occasional security issue, where it would be nice to have
non-public disclosure and time to fix the issue before it's fully public. Our
github infrastracture does not make it easy to report vulnerabilities in
confidential manner, so let's leverage the distro mechanisms for that. I
think we're better off with this solution than leaving it up to individual
reporters to discover some mechanism on their own.
Not all bluetooth devices come through the bluetooth subsystem and those that
don't currently lack the ID_BUS=bluetooth env. This again fails to apply udev
rules and/or hwdb entries that rely on the bluetooth bustype to be set.
Fix this by checking the attribute id/bustype on the device instead of just
the subsystem.
Fixes#4566
This patch adds quirks for the two laptops I could test on
(8540w and 8560w). The accelerometer is configured in the
kernel to report values according to the base of the laptop.
We want the values according to the screen instead.
It is likely (but untested) to match all HP laptops with the
lis3lv02d accelerometer on this list:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/platform/x86/hp_accel.c#n207
Package build machines may have module loading disabled, thus AF_ALG
sockets are not available. Skip the tests that cover those (khash and
id128) instead of failing them in this case.
Fixes#5524
Compiling against the dm-ioctl.h header as provided by the Linux kernel
will embed the DM interface version number. Running an older kernel can
result in an error like this on shutdown:
Could not detach DM dm-11: ioctl mismatch, kernel(4.34.4), user(4.35.4)
Work around this by shipping a local copy of dm-ioctl.h. We need at
least the version from 3.13 for DM_DEFERRED_REMOVE [1], so bump the
requirements in README accordingly.
[1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2c140a246dc0bc085b98eddde978060fcec1080cFixes: #5492
On SuperH, there are multiple sub-architectures defined with
different values for LIB_ARCH_TUPLE. The different sub-
architectures can be detected by checking whether __SH1__,
__SH2__, __SH3__, __SH4__, and so on are defined.
On powerpc, there are two possible ABIs and hence values for
LIB_ARCH_TUPLE. The convential type with an FPU and the embedded
variant, called powerpcspe, which does not have a convential FPU
but a special Signal Processing Engine (SPE). The latter can be
detected by checking whether __NO_FPRS__ is defined.
On x86_64, there are two possible ABIs and hence values for
LIB_ARCH_TUPLE. The convential 64-bit type and the 32-bit
variant, called x32. The latter can be detected by checking
whether __ILP32__ is defined.
The existing accelerometer rules only support IIO devices, however
iio-sensor-proxy can also work with accelerometers made available
through the input (evdev) subsystem.
In this case I am working with an accelerometer input device backed by an
ACPI driver for which the hierarchy is:
- ACCE0001 (ACPI device)
-> input8
-> event7
We want the mount matrix (from hwdb) to be applied to both input8 and
event7. However, to match in 60-sensor.hwdb, we need to be working
with the modalias of the parent device (ACCE0001), and it is tricky
to access that when processing the input8 device which has it's own
modalias.
Instead of working directly with modalias, this ACPI-specific rule
uses the "hid" attribute to reconstruct the ACPI modalias. Since input
and event devices do not provide a hid attribute we will always get this
from the ACPI parent.
The modalias is constructed according to the definition in the kernel's
Documentation/acpi/namespace.txt and create_pnp_modalias(). We will only
use the first _CID/_HID value available, i.e. in some cases we will only
reconstruct the first part of the modalias, but that should be enough
granularity for our needs.
This doesn't add anything major, but moves some stuff around.
In particular changes which might require updates to the build
environment (new kernel requirements, cgroup stuff, dbus, etc)
are moved to the top, where it's most likely that people will
read them. In particular cgroup hierarchy changes are moved to the
top because they're most likely to be problematic.
Various items are grouped by subject where it's easy.
The description of list-jobs --after/--before was reversed.
The builtin path id for virtio block devices has been changed
to use the bus id without a prefix "virtio-pci" to be
compatible with all virtio transport types.
In order to not break existing setups, the by-path symlinks for
virtio block devices on the PCI bus are reintroduced by udev rules.
The virtio-pci symlinks are considered to be deprecated and
should be replaced by the native PCI symlinks.
Example output for a virtio disk in PCI slot 7:
$ ls /dev/disk/by-path
pci-0000:00:07.0
pci-0000:00:07.0-part1
virtio-pci-0000:00:07.0
virtio-pci-0000:00:07.0-part1
See also
[1] https://lists.freedesktop.org/archives/systemd-devel/2017-February/038326.html
[2] https://lists.freedesktop.org/archives/systemd-devel/2017-March/038397.html
This reverts f073b1b but keeps the same symlinks for compatibility.
