Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 619F1476CC1; Tue, 21 Jul 2026 20:57:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784667462; cv=none; b=pGue61OSmBamsRxfvY+xw4YVDcWh2OWB9rZB2hE316i+zDt3cOp87OAZszVCRj4YKqHUMLXE7gUm/9xcs7lhTbTL5LNDFjuxUpVobqQ6qvQxqv7sjIZ3qKGxRpTdIV7Dh1Emafn7AGu38YlJ3TfpsNHwIxab0Ov+Dm+Z0n4UbL4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784667462; c=relaxed/simple; bh=KhYmEGNVaddGZGrjjiaSTUepbuKsxFzJHzZkJ14zRUk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XqZsxhZe+l2eqNvfumNyAWGhQTAy7FRXgefP4FbdSw/xyRzOk9UBiUlXXjV3WMuzKcz968+s4fPiuAW8sMAfC0DWEPSM4fANpvWm6dG7oc+Ba01PYtYPoYlAGq3DW7W7stt3i/jUzgyw4hFNsMrSbIK7mwzz07Cfdj/PV9lbcCk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=mwjSHa9L; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="mwjSHa9L" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EF181F00A3D; Tue, 21 Jul 2026 20:57:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784667458; bh=w6QmaCxfZl/w+lhYySoejEqNEjhe9wV5cXVsj7sXXno=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=mwjSHa9LAAljdx3M7JkzUOgKmTfQHICMMkibS0ZfPpcBLKxxfPRCoqAMCQRBy/B1p w/AHjZVOYIFegaYSJyG+iKDVAqIo3kPuQa0As4QSATG4kxSYKNkl2TOvdJi+33gv4m PjmU2YepXPXTWd9ZhSn+UYneioCsJZGVqlR8SKRM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sashiko bot , Dmitry Torokhov Subject: [PATCH 6.6 1070/1266] Input: ims-pcu - fix out-of-bounds read in ims_pcu_irq() debug logging Date: Tue, 21 Jul 2026 17:25:07 +0200 Message-ID: <20260721152505.762554074@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152441.786066624@linuxfoundation.org> References: <20260721152441.786066624@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Torokhov commit 403b0a6970b1084bb27907c0f8225801fdd0fe1d upstream. The debug logging in ims_pcu_irq() unconditionally prints data from pcu->urb_in_buf. However, if the interrupt fired for pcu->urb_ctrl, the actual data resides in pcu->urb_ctrl_buf. If urb->actual_length for the control URB exceeds pcu->max_in_size, this leads to an out-of-bounds read. Fix this by printing from the correct buffer associated with the URB. Fixes: 628329d52474 ("Input: add IMS Passenger Control Unit driver") Cc: stable@vger.kernel.org Reported-by: Sashiko bot Assisted-by: Gemini:gemini-3.1-pro Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- drivers/input/misc/ims-pcu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/input/misc/ims-pcu.c +++ b/drivers/input/misc/ims-pcu.c @@ -1547,7 +1547,7 @@ static void ims_pcu_irq(struct urb *urb) } dev_dbg(pcu->dev, "%s: received %d: %*ph\n", __func__, - urb->actual_length, urb->actual_length, pcu->urb_in_buf); + urb->actual_length, urb->actual_length, urb->transfer_buffer); if (urb == pcu->urb_in) ims_pcu_process_data(pcu, urb);