We have a few cases or reported issues which are about a timeout to parse
the input in 25 s. In all cases, the input is a few hundred kb. We don't really
care if the config parsers are super efficent, so let's set a limit on the input
size to avoid triggering such issues. The parsers often contain quadratic
algorithms. This is OK, because the numbers of elements are almost always very
small in real use. Rewriting the code to use more complicated data structures
to speed this up would not only complicate the code, but also pessimize behaviour
for the overwhelmingly common case of small samples. Note that in all those
cases, the input data is trusted. We care about memory correctness, and not
not so much about efficiency.
The size checks are done twice: using options for libfuzzer, and using an
internal check for afl. Those should be changed together. I didn't use a define,
because there is no easy mechanism to share the define between the two files.
The string validation should always be done correctly, and not fail just
because EFI is turned off. After all an EFI loader entry name string
remains properly formatted regardless if EFI is on or off...
Fixes: #11948
When enabled, three samples are used to determine the value of a
received bit by majority rule.
This patch adds support for the TripleSampling= option in the [CAN]
section of .network files.
If EFI is disabled compilation can fail with:
../src/login/logind-dbus.c: In function ‘property_get_reboot_to_boot_loader_entry’:
../src/login/logind-dbus.c:2772:29: error: implicit declaration of function ‘efi_loader_entry_name_valid’; did you mean ‘efi_loader_get_features’? [-Werror=implicit-function-declaration]
} else if (!efi_loader_entry_name_valid(v)) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~
efi_loader_get_features
../src/login/logind-dbus.c:2772:29: warning: nested extern declaration of ‘efi_loader_entry_name_valid’ [-Wnested-externs]
This adds stub for efi_loader_entry_name_valid() to enable compilation.
This is the TrackPoint on an older IBM-branded ThinkPad-y USB keyboard.
It needs ID_INPUT_POINTINGSTICK=1 for TrackPoint scrolling to work, and
also for the AttrTrackpointMultiplier quirk to apply in libinput
(otherwise the TrackPoint is too slooooow).
If the QEMU_SMP value has not been explicitly set, try to determine it
from the number of online CPUs using the nproc utility. If this approach
fails, fall back to the default value QEMU_SMP=1.
This change should significantly help when running integration tests
under QEMU on multicore systems.
ProtectHostname= turns off hostname change propagation from host to
service. This means for services that care about the hostname and need
to be able to notice changes to it it's not suitable (though it is
useful for most other cases still).
Let's turn it off hence for journald (which logs the current hostname)
for networkd (which optionally sends the current hostname to dhcp
servers) and resolved (which announces the current hostname via
llmnr/mdns).
Zbigniew Jędrzejewski-Szmek
Davide Cavalca
Sylvain Plantefève
Frantisek Sumsal
Yu Watanabe
Evgeny Vereshchagin
Lennart Poettering
Clemens Gruber
StKob
Vesa Jääskeläinen
Lubomir Rintel
Robin Elvedi