Re: [PATCH 2/2] Revert "dccp: don't free ccid2_hc_tx_sock struct in dccp_disconnect()"
Kleber Souza <[email protected]>
| Newsgroups | org.kernel.vger.dccp,org.kernel.vger.linux-kernel,org.kernel.vger.netdev |
|---|---|
| Message-ID | <[email protected]> |
On 15.10.20 05:42, Jakub Kicinski wrote: > On Tue, 13 Oct 2020 19:18:49 +0200 Kleber Sacilotto de Souza wrote: >> From: Thadeu Lima de Souza Cascardo <[email protected]> >> >> This reverts commit 2677d20677314101293e6da0094ede7b5526d2b1. >> >> This fixes an issue that after disconnect, dccps_hc_tx_ccid will still be >> kept, allowing the socket to be reused as a listener socket, and the cloned >> socket will free its dccps_hc_tx_ccid, leading to a later use after free, >> when the listener socket is closed. >> >> This addresses CVE-2020-16119. >> >> Fixes: 2677d2067731 (dccp: don't free ccid2_hc_tx_sock struct in dccp_disconnect()) >> Reported-by: Hadar Manor > > Does this person has an email address? We have received this report via a private Launchpad bug and the submitter didn't provide any public email address, so we have only their name. > >> Signed-off-by: Thadeu Lima de Souza Cascardo <[email protected]> >> Signed-off-by: Kleber Sacilotto de Souza <[email protected]>