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| author | Volker Lendecke <vl@samba.org> | 2013-01-31 16:34:41 +0100 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2013-02-02 19:53:30 -0800 |
| commit | 1cfc76f72ae454b13dbaeca22df06cb6f78f078f (patch) | |
| tree | 8cd62a3d976c7bb2285e3778746644be86f9dd8a | |
| parent | 611fcca641a22a2a23b26752105af99cf338d6a1 (diff) | |
| download | samba-1cfc76f72ae454b13dbaeca22df06cb6f78f078f.tar.gz samba-1cfc76f72ae454b13dbaeca22df06cb6f78f078f.tar.bz2 samba-1cfc76f72ae454b13dbaeca22df06cb6f78f078f.zip | |
tevent_poll: Avoid a crash in poll_event_set_fd_flags
The event context might have been freed before the fde
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
| -rw-r--r-- | lib/tevent/tevent_poll.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/tevent/tevent_poll.c b/lib/tevent/tevent_poll.c index f63173744f..7d10665353 100644 --- a/lib/tevent/tevent_poll.c +++ b/lib/tevent/tevent_poll.c @@ -297,11 +297,17 @@ static struct tevent_fd *poll_event_add_fd(struct tevent_context *ev, */ static void poll_event_set_fd_flags(struct tevent_fd *fde, uint16_t flags) { - struct poll_event_context *poll_ev = talloc_get_type_abort( - fde->event_ctx->additional_data, struct poll_event_context); + struct tevent_context *ev = fde->event_ctx; + struct poll_event_context *poll_ev; uint64_t idx = fde->additional_flags; uint16_t pollflags; + if (ev == NULL) { + return; + } + poll_ev = talloc_get_type_abort( + ev->additional_data, struct poll_event_context); + fde->flags = flags; if (idx == UINT64_MAX) { |