From nobody Mon Jun 13 02:43:31 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 127CF83F6D4 for ; Mon, 13 Jun 2022 02:43:32 +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 4LLwqR4QvKz3J3j for ; Mon, 13 Jun 2022 02:43:31 +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 78CE3572B for ; Mon, 13 Jun 2022 02:43:31 +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 25D2hVLT076491 for ; Mon, 13 Jun 2022 02:43:31 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 25D2hVow076490 for bugs@FreeBSD.org; Mon, 13 Jun 2022 02:43:31 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 264650] RDMA/ucma: Fix use-after-free access in ucma_close Date: Mon, 13 Jun 2022 02:43:31 +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: xiaohuizhang@ruc.edu.cn 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=1655088211; 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=GQUBsX1Mksmtm/ZGtuaV8Jm73VyfY+DueUxy2ERy/DQ=; b=Bp/Pify4zDOnniJ04bjSkRu6uaHjq/JBFs5MJkOOe33piHJRrgd+Sr7cwWQzYDpcyPfAWI xn3vg3GfJu0v73UVPYTCprToLB3FjZORElhBaSNgHt/NhmsqVrIci6aMKHRTp78zCf5wcU kMF/HrihUTKLlVLwYLC6Nb6UShrJI9IeaZOs4fxLlzRFrxRnQ84VPz0WBej1Wf2oZveok8 J7YzBvVxzJPlMxKfrPlP7ImAKW3nr6XhWJ3wjK9tj6GmhZFo+xDTEoY2GFIcxDrH485aYM QYfCq1o8U0ukdDm5+/wtB5JRz1EcfSwhSX7N9YY6tiGhHouK612N01Mmu6Xh6g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1655088211; a=rsa-sha256; cv=none; b=ONnpH/miVAfG5C+wRoGJSsmSWFMBfq5jAQUTkphjIfHMtEdeE0WMJhuPd+Ye9Q8yo6Qasm Vm5CDJoSnSUbUSkBLovQB6MuDyfxZ3g0gPaRjLXKBzWb1cEdgje1bkwAWElbEh0ojOheBb QPvRVvOQ/eLAhkgjFSUmTODNBfCAMEjtzX9NO38bkSZzHaBsbP82g95qndmkq8rVzyMN5o bsCIQgJ7exK8+HfIDc6/UGYcAB8FwZClPbIadmIhNvek9vD7mFgbe71482oy5YsGZy57P3 Ye/V23VsggcyUs+e88MWBxDQq8kN9KB97xQpuHvrZk9prY6XU4kXvPNiwHf/tg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264650 Bug ID: 264650 Summary: RDMA/ucma: Fix use-after-free access in ucma_close Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: xiaohuizhang@ruc.edu.cn Created attachment 234656 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D234656&action= =3Dedit a possible patch The error in ucma_create_id() left ctx in the list of contexts belong to ucma file descriptor. The attempt to close this file descriptor causes to use-after-free accesses while iterating over such list. --=20 You are receiving this mail because: You are the assignee for the bug.=