From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6938B3DDDDB for ; Fri, 8 May 2026 13:14:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778246059; cv=none; b=Mt1CcXFNyFHzqfeZUUUTz2N3D4a+gOlTP5Ba5Um5MCXRFHGsqtbd0cI5pGUbZ1sDJa5sGRFoUJ1FPXO8/V51Dpz2OZLklbDU1YF2MItE8kBZXxRGUORYkR/b2ySJ+7ycShew+1mKQSMBloHZc/8CnyJFoKSCmYkiEv5UX6Ilaak= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778246059; c=relaxed/simple; bh=ZuCbLYMXYhYBTbQa4Mv6cght8pJyZTtARemPcFaIPJ4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ZgmIRGQral9yleenuG26o7T/pajpCKSi/yZ0xC8cNhiRcxAsNhyaRFfWGKq06s/cgXe7aXNtbppxPKEH8OYSFCTv2SGIgIf0jZx1jFl/fdHzpC9+pFoxJqvd+fk/cFGXafFD8JucobKVi1SxB/BPxk+sVoA5Nt6h9PDZATzlvWk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cMxp3D24; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="cMxp3D24" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AE8AFC2BCB0; Fri, 8 May 2026 13:14:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778246059; bh=ZuCbLYMXYhYBTbQa4Mv6cght8pJyZTtARemPcFaIPJ4=; h=From:To:Cc:Subject:Date:Reply-To:From; b=cMxp3D24XBk+aQZQMd6pcmyWlVzFbaj6SSuMC85/Lgs7mwInWR1+lgc0D433rA4pJ /+9QkWvWEWMt0Dwyk0GkDphVSkDKvCvKyMMinR72verCJnsfdnWczc1SQstEUz6BkB J3nP4duOFf52sdq0IN/R/qtqepilSOG77DPBTTB4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43300: drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove() Date: Fri, 8 May 2026 15:12:05 +0200 Message-ID: <2026050856-CVE-2026-43300-7dbe@gregkh> X-Mailer: git-send-email 2.54.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2530; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=LwLy6+Jh9t4a5msOD/bsyx/E0IHinnKCEq9ReeMHXhQ=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/H8r4/DNNXCRlsGdmwdHwju6SaMXzMYUXrjluDb+gn uX5ZVNSRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEyEzZthvsuEdU+nu7M5aclu ubnA4cXdxR6HrBkWTJTxmDpRxdDjT0t/pu3+ndPrZ5qYAgA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove() In jdi_panel_dsi_remove(), jdi is explicitly checked, indicating that it may be NULL: if (!jdi) mipi_dsi_detach(dsi); However, when jdi is NULL, the function does not return and continues by calling jdi_panel_disable(): err = jdi_panel_disable(&jdi->base); Inside jdi_panel_disable(), jdi is dereferenced unconditionally, which can lead to a NULL-pointer dereference: struct jdi_panel *jdi = to_panel_jdi(panel); backlight_disable(jdi->backlight); To prevent such a potential NULL-pointer dereference, return early from jdi_panel_dsi_remove() when jdi is NULL. The Linux kernel CVE team has assigned CVE-2026-43300 to this issue. Affected and fixed versions =========================== Fixed in 6.12.75 with commit ec2f37bbb733cdd7ed7d04171fca728a532414d5 Fixed in 6.18.16 with commit 2f5427d8726b22b807beec248d7d6bf88e291e0b Fixed in 6.19.6 with commit 83ce0085fabf757b039322928188ad78e962d609 Fixed in 7.0 with commit 95eed73b871111123a8b1d31cb1fce7e902e49ea Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-43300 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/gpu/drm/panel/panel-jdi-lpm102a188a.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/ec2f37bbb733cdd7ed7d04171fca728a532414d5 https://git.kernel.org/stable/c/2f5427d8726b22b807beec248d7d6bf88e291e0b https://git.kernel.org/stable/c/83ce0085fabf757b039322928188ad78e962d609 https://git.kernel.org/stable/c/95eed73b871111123a8b1d31cb1fce7e902e49ea