From nobody Sun Jun 12 13:05:40 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 161FD851FF7 for ; Sun, 12 Jun 2022 13:05:41 +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 4LLZgm5CgDz3HSn for ; Sun, 12 Jun 2022 13:05:40 +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 8F97921F86 for ; Sun, 12 Jun 2022 13:05:40 +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 25CD5eYx056676 for ; Sun, 12 Jun 2022 13:05:40 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 25CD5eMX056675 for bugs@FreeBSD.org; Sun, 12 Jun 2022 13:05:40 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 264632] drm/edid: Fix parsing of EDID 1.4 Established Timings III descriptor Date: Sun, 12 Jun 2022 13:05:40 +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=1655039140; 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=qRne+d7oRBmqeNNmfNSB2m/WSlUt3+UdeZ9WUDWAqZk=; b=RZS+u0Mc5ru1QXR8i7PgSq3aY4Dg4GsfACrPMgQIVa7V5U7s/6A47+0m979tevoc33zC0b DBeljZoKekqlH4FUMyeUiRMSpHs9I84RurZ8CVDmZdvUdQuIz82WWfvLa77uDM+icTZUpX Y8tzYH/aImxdiKg7Ax7CCLjR1l+WYfDWTYO7ALVIme5ISOSAF85UPCv4YhK6lpN26K0gym fY6VhdIFHajz10WNDdCr9zothAQxPc1PLl4tZbV/SYa+cXApCziVah+mfRw0ZbiS7L51xp BEsWO29u9cEhi3fUuU5G42jAyF+iFoaTQNuNh6cCHfvCJyUEQzEyxPyAg2vM1w== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1655039140; a=rsa-sha256; cv=none; b=yzt0p0Am2IntTj53iPmCm8+QSSpfSJUVv1rWasZmqLtIMKsCSc/SIFKh4ljsKpRnEOMfyO tSGCUhql3E8DDzyWTrmmxAeHk2cfWrOlCU2s72Sxjf+GfcVX2KtAoU+YPIm/5cRsrRE2vV UFegXOcOrtryXGeEg5ThF7nqopZdOVXLdgGJ6LUX07zhh6UoejRCggiPEx7z1LQblGRDa6 qKAZ8/05Tsa9CyqpVCOx9j5oar6O6uJJEl1lGjBFSkmHhmviB02QscRtXVOZLPrfjO6v51 l61MUFoW0PxbKxjvqtdKkpI4aOmlqbd/nAc/kPgxbIxhw2Mc5zlVWcKThaYM1w== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D264632 Bug ID: 264632 Summary: drm/edid: Fix parsing of EDID 1.4 Established Timings III descriptor 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 234639 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D234639&action= =3Dedit a possible patch The EDID 1.4 specification section 3.10.3.9 defines an Established Timings = III=20 descriptor (tag #F7h). The parsing of this descriptor by drm_est3_modes() is off by one byte: the offset of the first timing bitmap is 6, not 5. The similar bug has been fixed in linux (commit f3a32d74ef73). --=20 You are receiving this mail because: You are the assignee for the bug.=