gmtime_r() will return NULL in that case, and we would crash.
I committed the reproducer case in fuzz-regressions/, even though we don't have
ubsan hooked up yet. Let's add it anyway in case it is useful in the future. We
actually crash anyway when compiled with asserts, so this can be easily
reproduced without ubsan.
oss-fuzz #6886.
The extended testsuite only works with uid=0. It contains of several
subdirectories named "test/TEST-??-*", which are run one by one.
To run the extended testsuite do the following:
$ make all # Avoid the "sudo make" below building anything as root
$ cd test
$ sudo make clean check
...
make[1]: Entering directory `/mnt/data/harald/git/systemd/test/TEST-01-BASIC'
Making all in .
Making all in po
TEST: Basic systemd setup [OK]
make[1]: Leaving directory `/mnt/data/harald/git/systemd/test/TEST-01-BASIC'
...
If one of the tests fails, then $subdir/test.log contains the log file of
the test.
To debug a special testcase of the testsuite do:
$ make all
$ cd test/TEST-01-BASIC
$ sudo make clean setup run
QEMU
====
If you want to log in the testsuite virtual machine, you can specify
additional kernel command line parameter with $KERNEL_APPEND.
$ sudo make KERNEL_APPEND="systemd.unit=multi-user.target" clean setup run
you can even skip the "clean" and "setup" if you want to run the machine again.
$ sudo make KERNEL_APPEND="systemd.unit=multi-user.target" run
You can specify a different kernel and initramfs with $KERNEL_BIN and $INITRD.
(Fedora's or Debian's default kernel path and initramfs are used by default)
$ sudo make KERNEL_BIN=/boot/vmlinuz-foo INITRD=/boot/initramfs-bar clean check
A script will try to find your QEMU binary. If you want to specify a different
one you can use $QEMU_BIN.
$ sudo make QEMU_BIN=/path/to/qemu/qemu-kvm clean check
55a30fd4e8
