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test: loop: add test for destroying source of thread loop

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Add test which tries to destroy an active source precisely
after the loop has returned from polling but has not yet
acquired the thread loop lock.
This commit is contained in:
Barnabás Pőcze 2022-02-18 19:27:13 +01:00
parent 16f63a3c8f
commit d1f7e96f82
1 changed files with 34 additions and 0 deletions
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34
test/test-loop.c
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@ -227,11 +227,45 @@ PWTEST(pwtest_loop_recurse2)
return PWTEST_PASS;
}
PWTEST(thread_loop_destroy_between_poll_and_lock)
{
pw_init(NULL, NULL);
struct pw_thread_loop *thread_loop = pw_thread_loop_new("uaf", NULL);
pwtest_ptr_notnull(thread_loop);
struct pw_loop *loop = pw_thread_loop_get_loop(thread_loop);
pwtest_ptr_notnull(loop);
int evfd = eventfd(0, 0);
pwtest_errno_ok(evfd);
struct spa_source *source = pw_loop_add_io(loop, evfd, SPA_IO_IN, true, NULL, NULL);
pwtest_ptr_notnull(source);
pw_thread_loop_start(thread_loop);
pw_thread_loop_lock(thread_loop);
{
write(evfd, &(uint64_t){1}, sizeof(uint64_t));
sleep(1);
pw_loop_destroy_source(loop, source);
}
pw_thread_loop_unlock(thread_loop);
pw_thread_loop_destroy(thread_loop);
pw_deinit();
return PWTEST_PASS;
}
PWTEST_SUITE(support)
{
pwtest_add(pwtest_loop_destroy2, PWTEST_NOARG);
pwtest_add(pwtest_loop_recurse1, PWTEST_NOARG);
pwtest_add(pwtest_loop_recurse2, PWTEST_NOARG);
pwtest_add(thread_loop_destroy_between_poll_and_lock, PWTEST_NOARG);
return PWTEST_PASS;
}