From nobody Tue Jul 12 12:23:03 2022 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4152017F9625 for ; Tue, 12 Jul 2022 12:23:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Lj0Jm0shnz3pJc for ; Tue, 12 Jul 2022 12:23:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4Lj0Jl72cJzkHl for ; Tue, 12 Jul 2022 12:23:03 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 26CCN34v012762 for ; Tue, 12 Jul 2022 12:23:03 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 26CCN3YG012761 for net@FreeBSD.org; Tue, 12 Jul 2022 12:23:03 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 265154] tcp: syncache_expand() potential race Date: Tue, 12 Jul 2022 12:23:03 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: tuexen@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1657628584; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0JQO3tcpiTXnbvgvcpT0MN0c2vEZpWPV00Wd9/bI0Fw=; b=xp7BLYBTeN7/l28WWGen0rBFp16e+CBOeJwo+hjFyNUahZjS7I+PFm5LqMdB6RwD966YRH RtYsxxEbI/QwM08qZXP2AoiYXXEBiSq7RZJITD9SetjzNVdYYdyGSywdETqJP41XAq96Z+ I1rCwx8XJN2Zglhx/sws3ZhYL0fWHQ9cJiyb73edqRXx0/5chGDF3X07FWzAH3YYEgnEdY Qg0uFpTtyLnl6lWcAaiRRazHkRZtYYy8pou5TMVqLpxaKYdJZSHpqUX5cCQ7lMgvzig+ta LDgWJ0ey8wJyw12TYuOG/8QyrnvjQgejVUmZANqcIRuQHwvnLKWIZaA19LPqmg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1657628584; a=rsa-sha256; cv=none; b=XfXfPOyF4uKwcGwN/sxKKVrsKUtx3axuIlsSqYvkt3kTkfA55BEBKh7+f6aW5Kxs1z1q9b OXyj6AKX41J5ekSpOU9k7ipHCFwAHDcHt7s3a52lBoemhR8hTOpO16UWjPzBkvnblQSA3X 4uXPGJb30gWaKlahMnW8i97RxrUJ+Lpm6TYZxrBEgZ9yTaKDNXMDYl5d6gOVJMQmugYLxh zOO8PxWD0LbQMKZIhcq1qLfe6Zs0Mfam0oT4YlEUHNkAK7bVaHC6lyKipl/ITW4UnpUcwq xNPfKMUyIy1tuHNvvb60WkPL639m/EdsGhYzT4GlqDbyF0eeBFu/QrIAAtxN1A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265154 Michael Tuexen changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tuexen@freebsd.org --- Comment #1 from Michael Tuexen --- I guess you are referring to a race between a) an incoming ACK segment being the third segment of the three way hand sh= ake b) an incoming non-SYN segment (for example the first data segment from the peer The non-SYN segment is responded with a RST, right? If that is true, I discussed such a race with glebius@ recently... --=20 You are receiving this mail because: You are the assignee for the bug.=