You must selwakeup{,pri}() when closing a selectable object or the

td->td_sel will get trashed and crash the system. Fix BPF's mistake in this area. MFC after: 1 day
2005-03-27 23:16:17 +00:00 · 2005-03-27 23:16:17 +00:00 · 3099929dde
commit 3099929dde
parent 225da24b06
1 changed files with 1 additions and 0 deletions
--- a/sys/net/bpf.c
+++ b/sys/net/bpf.c
@ -386,6 +386,7 @@ bpfclose(dev, flags, fmt, td)
 	if (d->bd_bif)
 		bpf_detachd(d);
 	mtx_unlock(&bpf_mtx);
+	selwakeuppri(&d->bd_sel, PRINET);
 #ifdef MAC
 	mac_destroy_bpfdesc(d);
 #endif /* MAC */