From nobody Tue Jan 25 05:16:22 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 54FF319857E9 for ; Tue, 25 Jan 2022 05:16:23 +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 4JjZny5Hwpz3hnK for ; Tue, 25 Jan 2022 05:16:22 +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 8DF7F2375D for ; Tue, 25 Jan 2022 05:16:22 +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 20P5GMvB080231 for ; Tue, 25 Jan 2022 05:16:22 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 20P5GMdr080230 for bugs@FreeBSD.org; Tue, 25 Jan 2022 05:16:22 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 261455] Fix a possible Null pointer dereference in svc_dg_create() Date: Tue, 25 Jan 2022 05:16:22 +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: zhou1615@umn.edu 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=1643087782; 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=Cx/TTG5LwqGnYI0BGCtrno+jmVKneJ5HDLofEVnnDN0=; b=rs7oZKGa5Qfyjqqn89phym7Ml4g85+Fco+oz5f4z8228lxMNASXZQ6XOSqmYPpjJoD20dE /QHQfeBSdPHZ6pUwBMGe2nJAIA1vTrcc//Z06PvjMh/7FyGHHDMPv0tfltyNA7bnQ1JVcv GvIniouTClUtPUtEXxWbuEzxsfEzbz3k+PgkuXIuePgXIXWqI2YOT41sE1pO2qACnPpYnz yotO1ZpTxQqHHkC5SX0DIRFwA5A8R3VRojhYFWML5kCU1AI3eG3gXP6z8UfkCBr3NA07xp jrUVFWQBUh7fQatlCBz+12v03llbypMJSx4biK/A7rMtBBoOBuD/5b0U40TpUg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1643087782; a=rsa-sha256; cv=none; b=vpNcYjgR98ghPp+z642USxYiadyz4Aif5LjkYrL/MaZbD1HhjdbHwUx3jGcBzlEfLco6gq vdQZ2q3d8UxpGdDSeQnI+seA9QCgmbcGbjofGOkqKmxM95gVE5hKIHpIKsCA/kUKRn8rT8 DGRZkSN9i2F5s4Gx21OldtA0GZrZ2eSMOhuPf8ihmjyeHaz6KPe5qTLX1AhPTkx614hAMs uNZdrPzAaxnTuMYI+hoZqMqj9VQOp0BAzFDxr6W/eADOBHqGogwmvqexwPpwCO1DaXwBhF 8p+ryKILil/gqBNY0qPOWJgJWIRcDQ4QJpmzP6wiTKa1mYLA7aX8byouzMUYBA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D261455 Bug ID: 261455 Summary: Fix a possible Null pointer dereference in svc_dg_create() Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: zhou1615@umn.edu Created attachment 231295 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D231295&action= =3Dedit A simple fix for this bug In sys/rpc/svc_dg.c file, the return value of svc_xprt_alloc() is assigned = to xprt and there is a dereference of it right after that, which would lead to NULL pointer dereference on failure of allocation. Fix this bug by adding a NULL check of xprt. This bug is found by static analyzer, please advise. --=20 You are receiving this mail because: You are the assignee for the bug.=