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| author | Lennart Poettering <lennart@poettering.net> | 2019-01-17 21:06:30 +0100 |
|---|---|---|
| committer | Lukas Nykryn <lnykryn@redhat.com> | 2020-02-03 11:05:28 +0100 |
| commit | fb04f17617458d2d3d09e0bef29f1255d4d3500c (patch) | |
| tree | ab1967cb83eb2ac0df9c4e81ea48ca0857e3b7aa | |
| parent | e81231e9a88ebc68c715010ce288c1d59c52e88f (diff) | |
| download | systemd-fb04f17617458d2d3d09e0bef29f1255d4d3500c.tar.gz | |
sd-bus: initialize mutex after we allocated the wqueue
That way the mutex doesn't have to be destroyed when we exit early due
to OOM.
(cherry picked from commit 2fe9a10d7695c4c3a748969a0d1662c624e50e5e)
Related: CVE-2020-1712
| -rw-r--r-- | src/libsystemd/sd-bus/sd-bus.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c index 01060d105c..e49d58137d 100644 --- a/src/libsystemd/sd-bus/sd-bus.c +++ b/src/libsystemd/sd-bus/sd-bus.c @@ -248,12 +248,12 @@ _public_ int sd_bus_new(sd_bus **ret) { b->original_pid = getpid_cached(); b->n_groups = (size_t) -1; - assert_se(pthread_mutex_init(&b->memfd_cache_mutex, NULL) == 0); - /* We guarantee that wqueue always has space for at least one entry */ if (!GREEDY_REALLOC(b->wqueue, b->wqueue_allocated, 1)) return -ENOMEM; + assert_se(pthread_mutex_init(&b->memfd_cache_mutex, NULL) == 0); + *ret = TAKE_PTR(b); return 0; } |