Public bug reported:
$ lsb_release -rd
Description: Ubuntu 20.04.6 LTS
Release: 20.04
$ apt-cache policy libjq1 libjq-dev
libjq1:
Installed: 1.6-1ubuntu0.20.04.1+esm2
Candidate: 1.6-1ubuntu0.20.04.1+esm2
Version table:
*** 1.6-1ubuntu0.20.04.1+esm2 510
510 https://esm.ubuntu.com/infra/ubuntu focal-infra-security/main amd64
Packages
100 /var/lib/dpkg/status
1.6-1ubuntu0.20.04.1 500
500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
1.6-1 500
500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages
libjq-dev:
Installed: 1.6-1ubuntu0.20.04.1+esm2
Candidate: 1.6-1ubuntu0.20.04.1+esm2
Version table:
*** 1.6-1ubuntu0.20.04.1+esm2 510
510 https://esm.ubuntu.com/infra/ubuntu focal-infra-security/main amd64
Packages
100 /var/lib/dpkg/status
1.6-1ubuntu0.20.04.1 500
500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
1.6-1 500
500 http://archive.ubuntu.com/ubuntu focal/universe amd64 Packages
Using version 1.6-1ubuntu0.20.04.1+esm2 a simple code like the following
will segfault, while downgrading to version 1.6-1ubuntu0.20.04.1 will
work correctly:
#include <thread>
#include <unistd.h>
#include <vector>
extern "C" {
#include <jq.h>
}
static void entry() {
jq_state* jq = jq_init();
jq_compile(jq, ".name}");
usleep(5000000);
jq_teardown(&jq);
}
int main()
{
std::vector<std::thread> threads;
for (int i = 0; i < 10; ++i)
threads.emplace_back(&entry);
for (auto& t : threads)
t.join();
return 0;
}
//Compile it with: g++ -std=c++11 -Wall -Werror -pthread -g -O0 -o main
main.cpp -ljq
$ gdb ./main
core._home_ubuntu_main.1000.54978e03-2050-4546-b1b4-22645999ce29.4782.1526840
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007f4c67d9aa99 in jv_nomem_handler () from
/lib/x86_64-linux-gnu/libjq.so.1
#2 0x00007f4c67d937dd in jq_compile_args () from
/lib/x86_64-linux-gnu/libjq.so.1
#3 0x00005575431d43da in entry () at main.cpp:10
#4 0x00005575431d60c4 in std::__invoke_impl<void, void (*)()>
(__f=@0x557555143478: 0x5575431d43a3 <entry()>) at
/usr/include/c++/9/bits/invoke.h:60
#5 0x00005575431d605c in std::__invoke<void (*)()> (__fn=@0x557555143478:
0x5575431d43a3 <entry()>) at /usr/include/c++/9/bits/invoke.h:95
#6 0x00005575431d5fee in std::thread::_Invoker<std::tuple<void (*)()>
>::_M_invoke<0ul> (this=0x557555143478) at /usr/include/c++/9/thread:244
#7 0x00005575431d5fab in std::thread::_Invoker<std::tuple<void (*)()>
>::operator() (this=0x557555143478) at /usr/include/c++/9/thread:251
#8 0x00005575431d5f7c in
std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (*)()> >
>::_M_run (this=0x557555143470) at /usr/include/c++/9/thread:195
#9 0x00007f4c67c6fdf4 in ?? () from /lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007f4c67b63609 in start_thread (arg=<optimized out>) at
pthread_create.c:477
#11 0x00007f4c67a883a3 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
The workaround is to downgrade libjq packages to the latest non-ESM version:
$ sudo apt install libjq1=1.6-1ubuntu0.20.04.1 libjq-dev=1.6-1ubuntu0.20.04.1
** Affects: jq (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/2152052
Title:
Regression introduced in version 1.6-1ubuntu0.20.04.1+esm2
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/jq/+bug/2152052/+subscriptions
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
