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| author | Neels Hofmeyr <neels@hofmeyr.de> | 2020-03-09 21:01:56 +0100 |
|---|---|---|
| committer | Neels Hofmeyr <neels@hofmeyr.de> | 2020-03-09 21:02:31 +0100 |
| commit | ebf55f4b31f14e7118ee3d59dd43fd9dc00d128d (patch) | |
| tree | b3600c9f221a812b7a78699f1607f4f2e21a1c8d | |
| parent | 40b11c9ba414db943105aa7a221d5d905cdfa51a (diff) | |
fix segfault: unsolicited Paging Response
Do not crash when a Paging Response could not be associated with a VLR
subscriber.
Related: OS#4449
Change-Id: Ie117949dd6da86afaa1a0a6ac57bf2111f6cff43
| -rw-r--r-- | src/libmsc/paging.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libmsc/paging.c b/src/libmsc/paging.c index 743ce5c86..b288414d8 100644 --- a/src/libmsc/paging.c +++ b/src/libmsc/paging.c @@ -137,6 +137,11 @@ static void paging_concludes(struct vlr_subscr *vsub, struct msc_a *msc_a) struct paging_request *pr, *pr_next; struct paging_signal_data sig_data; + if (!vsub) { + /* A Paging Response has no subscriber. (Related: OS#4449) */ + return; + } + osmo_timer_del(&vsub->cs.paging_response_timer); llist_for_each_entry_safe(pr, pr_next, &vsub->cs.requests, entry) { |