AF_UNIX: check for unp == unp2 on disconnect
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=334756
@ -872,21 +872,19 @@ uipc_disconnect(struct socket *so)
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UNP_PCB_UNLOCK(unp);
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return (0);
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}
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if (unp == unp2) {
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if (unp_pcb_rele(unp) == 0)
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if (__predict_true(unp != unp2)) {
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unp_pcb_owned_lock2(unp, unp2, freed);
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if (__predict_false(freed)) {
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UNP_PCB_UNLOCK(unp);
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return (0);
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}
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unp_pcb_hold(unp2);
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}
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unp_pcb_owned_lock2(unp, unp2, freed);
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if (__predict_false(freed)) {
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UNP_PCB_UNLOCK(unp);
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return (0);
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}
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unp_pcb_hold(unp2);
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unp_pcb_hold(unp);
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unp_disconnect(unp, unp2);
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if (unp_pcb_rele(unp) == 0)
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UNP_PCB_UNLOCK(unp);
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if (unp_pcb_rele(unp2) == 0)
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if ((unp != unp2) && unp_pcb_rele(unp2) == 0)
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UNP_PCB_UNLOCK(unp2);
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return (0);
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}
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