lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-ID: <4CEF64A4.5080802@cn.fujitsu.com> Date: Fri, 26 Nov 2010 15:41:24 +0800 From: Shan Wei <shanwei@...fujitsu.com> To: Eric Dumazet <eric.dumazet@...il.com> CC: Марк Коренберг <socketpair@...il.com>, David Miller <davem@...emloft.net>, netdev@...r.kernel.org Subject: Re: Fwd: Simple kernel attack using socketpair. easy, 100% reproductiblle, works under guest. no way to protect :( Eric Dumazet wrote, at 11/25/2010 10:11 PM: > @@ -1845,6 +1871,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock, > unix_state_lock(sk); > skb = skb_dequeue(&sk->sk_receive_queue); > if (skb == NULL) { > + unix_sk(sk)->recursion_level = 0; For SOCK_SEQPACKET type, no need to clear recursion_level counter? -- Best Regards ----- Shan Wei -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists