From nobody Tue Jan 25 07:17:27 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 561F0198F535 for ; Tue, 25 Jan 2022 07:17:28 +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 4JjdTg4sPfz3FTn for ; Tue, 25 Jan 2022 07:17:27 +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 7F861255BB for ; Tue, 25 Jan 2022 07:17:27 +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 20P7HRiH048031 for ; Tue, 25 Jan 2022 07:17:27 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 20P7HRPS048030 for bugs@FreeBSD.org; Tue, 25 Jan 2022 07:17:27 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 261458] Fix a possible Null pointer dereference in igmp_domifattach() Date: Tue, 25 Jan 2022 07:17:27 +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 Only Me 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=1643095047; 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=ccubZ/spP7eWPaM20TUfP+7vdhq4cMM9au1qYB4OuOY=; b=GBMMUeZ8Oy1uVSQGbI3p0j/RpCWlOejU5kH+6YHI2o5sx5IZd/8Ix+HoctBaoilZSvMI9B bfj4dfuRAdJJ0SGo7nKISxdqm8adNWnsbfI5bEmLeTro8J7Pm7kBID55OdG9MjjV8nHSE5 qJTHbQwwZHljgQ+fx96skw8H6cjyXyeeRaBbyZKnLnytRdNy9UsXAw6iWCybWEGACxgt3G Rf7+ISfWNfEVm2swj1eZO7kzo3eIe3/nsaV/rMaxN7vS7VMY+PIuSYHOWETBqgOSuWBpWL +HTX1up2qiUFMXBaSjKFis/c32vFS8bfKvwjWShil9/J2OvP4jYPi1KkESlF5g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1643095047; a=rsa-sha256; cv=none; b=QUBK48p8Hic76UB5/Vy9k5QnSoc1KD5aN9g2k5qYdJDyg4Nudq3IylGfRBqoCUjASjg2bj dlYjYdmVZAiM+2O9Z/qvmUoky8OaHa8+LvYL9MObzSokL5qhZETqzAefDYHWaG4iQYesC6 Ghb1cD7330PbrUppCywVrOuFHP4CD0Il81ETMhmVl94nWXHlTj5yOVB5qo3qb1CKeR3Xqg 4WmsOu79T3F9jQMAFtWoiCOTcOQtwyhp4q+COmbGtLEmGQhX+gH4j/g1lCXQliC2Wj+mOF ybt6W+Rud8coH4xVhp4aJXEP7YfqpjKPHXpXtAfbxeVZW8n4uLYE6RGK1eniXw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D261458 Bug ID: 261458 Summary: Fix a possible Null pointer dereference in igmp_domifattach() Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: zhou1615@umn.edu Created attachment 231298 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D231298&action= =3Dedit A simple fix for this bug In sys/netinet/igmp.c file, the return value of igi_alloc_locked() is assig= ned to igi 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 igi. This bug is found by static analyzer, please advise. --=20 You are receiving this mail because: You are the assignee for the bug.=