Bug#916678: systemd: Caught <SEGV>, dumped core as pid 2097

[Cristian Ionescu-Idbohrn]

On Mon, 17 Dec 2018, Bernhard Übelacker wrote:
> 
> Hello Cristian Ionescu-Idbohrn,
> following is what I get from a buster amd64 qemu VM,
> with explicitly downgraded systemd packages to 239-13:
> 
> It has quite a similarity to upstream bug [1].
> And upstream received a fix for that just a few days ago,
> and is therefore not yet contained in an upstream release.

Thanks.  So, this bug is present in 239-15 too and can bite again, 
isn't it?

> [1] https://github.com/systemd/systemd/issues/10716
> 
> (gdb) bt
> #0  0x00007f2d9386bb37 in kill () at ../sysdeps/unix/syscall-template.S:78
> #1  0x0000561672b85436 in crash (sig=11) at ../src/core/main.c:183
> #2  <signal handler called>
> #3  __strlen_avx2 () at ../sysdeps/x86_64/multiarch/strlen-avx2.S:93
> #4  0x00007f2d93680cb7 in message_append_basic (m=m at entry=0x561674c79870, type=<optimized out>, p=0xffffffffffffffff, stored=stored at entry=0x0) at ../src/basic/string-util.h:36
> #5  0x00007f2d936812ab in sd_bus_message_append_basic (m=m at entry=0x561674c79870, type=<optimized out>, p=<optimized out>) at ../src/libsystemd/sd-bus/bus-message.c:1565
> #6  0x00007f2d93681719 in sd_bus_message_appendv (m=0x561674c79870, types=<optimized out>, ap=ap at entry=0x7ffcabd85950) at ../src/libsystemd/sd-bus/bus-message.c:2358
> #7  0x00007f2d93681cf9 in sd_bus_message_append (m=<optimized out>, types=<optimized out>) at ../src/libsystemd/sd-bus/bus-message.c:2473
> #8  0x0000561672b01daf in send_removed_signal (bus=0x561674bb3130, userdata=0x561674c144f0) at ../src/core/job.c:1565
> #9  0x0000561672b71dbf in bus_foreach_bus (m=0x561674ab5830, subscribed2=0x0, send_message=0x561672b01d00 <send_removed_signal>, userdata=0x561674c144f0) at ../src/core/dbus.c:1187
> #10 0x0000561672b03f78 in bus_job_send_removed_signal (j=<optimized out>, j=<optimized out>) at ../src/core/dbus-job.c:225
> #11 0x0000561672b8300e in manager_flush_finished_jobs (m=<optimized out>) at ../src/core/manager.c:3359
> #12 manager_reload (m=0x561674ab5830) at ../src/core/manager.c:3477
> #13 invoke_main_loop (m=0x561674ab5830, ret_reexecute=0x7ffcabd85c2a, ret_retval=0x7ffcabd85c2c, ret_shutdown_verb=<optimized out>, ret_fds=0x7ffcabd85c30, ret_switch_root_dir=0x7ffcabd85c58, ret_switch_root_init=0x7ffcabd85c50, ret_error_message=0x7ffcabd85c40) at ../src/core/main.c:1661
> #14 0x0000561672ae4620 in main (argc=<optimized out>, argv=0x7ffcabd85f08) at ../src/core/main.c:2415


Cheers,

-- 
Cristian