From nobody Sun Jun 05 09:49:12 2022 X-Original-To: bugs@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 7BC821BDD4E2 for ; Sun, 5 Jun 2022 09:49:12 +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 4LGBfJ0T4hz3GGb for ; Sun, 5 Jun 2022 09:49:12 +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 DE24B7B9D for ; Sun, 5 Jun 2022 09:49:11 +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 2559nBQP066853 for ; Sun, 5 Jun 2022 09:49:11 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 2559nBK8066852 for bugs@FreeBSD.org; Sun, 5 Jun 2022 09:49:11 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: bugs@FreeBSD.org Subject: [Bug 264469] net/mlx4_core: fix a use-after-free Date: Sun, 05 Jun 2022 09:49:12 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: Unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: ruc_gongyuanjun@163.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter attachments.created Message-ID: 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: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1654422552; 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; bh=ZEo3JiSDlPCGCEQ2+hs5hlg3XS+Z+NNgFlV/0uH+aHE=; b=u0Yqe2hlPLg0x47cADwKYB8gUq64rVmkvLKfjkunqExEZO2ehwKSmI+pPAv4j8Ay+GYZvk 80BwryRhxk8fHBCHaD5Z3JyBpGW7l5tQqFXxXFDLFSPbrcQ9/Gkg+vu1F5ucr9XtdriyiK x2VuFEKqRu56vu1VbXiGmlHIbX6a/a+/lmKvevwxDhQIQ6OCQXq69n3zfyVmJGCMAmEusU 96EHkxpdkaSRWpa+9/Qq17z/5SXxzfR8UnIuOprVk+hd2QKfnqWYkkiAJJJvtp+tEh+2oS l+cji6ey7efhgCsV7YJ4FbGYhzHLypnwgCH/NBTjJnurv+CMMmCEdBEGFk1Xkg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1654422552; a=rsa-sha256; cv=none; b=LeLP8KVoqS8/po24yZxz+w8jaIMjmrHYXBtieZtSftfRLSYH6x9xhT4/v+hfS11tOrphlm BEAz1vK+IzltL5AoUzmo/146eHsP7bUWeKvEQEfrgNX3fa3d0/BpLDJ9RvmxPoI9Dgzxt4 sawjZa9fSEnZslYiLftJhFXLAdrvvJDHHRklqB1YgVrt47lKp8wGBcGLLIm4iQ6YeQZvxP XPxs8oMHn0woflx2C1AV6hNDCxS0wD5jp5BCjvFoU+n621QCtqTupI/lf3F20hIw+LziM9 7KMiQtpbBU3xlQba4KsyqJVa3Lc6zyTADzchEFFYUAjxDrZyLWbWZelsP3EkoQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264469 Bug ID: 264469 Summary: net/mlx4_core: fix a use-after-free Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: ruc_gongyuanjun@163.com Created attachment 234460 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D234460&action= =3Dedit a possible patch mlx4_QP_FLOW_STEERING_DETACH_wrapper first removes the rrule and then references qpn field in rrule. The memory of rrule might be reallocated, making the pqn field different. Fix this by saving qpn in a local variable. --=20 You are receiving this mail because: You are the assignee for the bug.=