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 16B0B37524F for ; Sat, 28 Feb 2026 18:16:48 +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=1772302608; cv=none; b=P+uJpiWBMo/8J80YR+2KqWG+VkdN3RVQ6A4DUShusrqmbojwnU+T+XoCMtlg4ZIxZ97W6eh4MhMEYtBYpFpWHG2z+7/CJCV2bEQFM3w/LNxdbkom98/INE3eEo3y//YtpogKHaDG0B9719QSEhQtFu2tZLrV2EG6ePfAdyYva8g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772302608; c=relaxed/simple; bh=HfhvTey7/FHVnlRB6PHItdu1Cg7z3ANDEMy3QucTxFo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cnORgyu1pZmE3Xsfh28TsJrVbe6xL2yd6P75tl5GcWHg5G4lopDLBCk44oehFwHVjyelENkjdczY+ZadE0nccm4DZj8hsZCUJrMrDU4LJfJcTgbeEpjHyjv4HaeoxQp1ZRjxAAppqPA0osae3o9A09FQxkIRoVkMKrWCwjlQuW8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RuMWe6Ur; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RuMWe6Ur" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7BB84C116D0; Sat, 28 Feb 2026 18:16:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772302608; bh=HfhvTey7/FHVnlRB6PHItdu1Cg7z3ANDEMy3QucTxFo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RuMWe6UrQT8pZ+3140Z974beuj4Ax3bupvNnwuu1UW7t125DoPzmKGaBI6qJJcfSY ieq8xFAxuK6qakLHEgmsYtlzGTj+GjwmEyrsa9saHlvuGcD2nnq7uQ7swScdTUc8hG iNafHmmYGFEqJuvE1iHKtJ2+WEHeBkT6DkWkxU3pQFy+lQlY0DjyIXkXhu/d2DMZbb htAtTTozBiUciuZ5AldZZXZAKCSxI+xKIVMHhm2GTichQL7jBM1wWBn8/3g09kTlMV v9uVy+coTzWBtQRf2YXtwX6fSx2jQOOribtobkeGREa/jZvduvW6NNOqxpZtgg74c0 DX+Ed36rg1ubw== From: Sasha Levin To: patches@lists.linux.dev Cc: Colin Ian King , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.15 123/164] scsi: csiostor: Fix dereference of null pointer rn Date: Sat, 28 Feb 2026 13:14:22 -0500 Message-ID: <20260228181505.1600663-123-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228181505.1600663-1-sashal@kernel.org> References: <20260228181505.1600663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Colin Ian King [ Upstream commit 1982257570b84dc33753d536dd969fd357a014e9 ] The error exit path when rn is NULL ends up deferencing the null pointer rn via the use of the macro CSIO_INC_STATS. Fix this by adding a new error return path label after the use of the macro to avoid the deference. Fixes: a3667aaed569 ("[SCSI] csiostor: Chelsio FCoE offload driver") Signed-off-by: Colin Ian King Link: https://patch.msgid.link/20260129155332.196338-1-colin.i.king@gmail.com Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/csiostor/csio_scsi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 3b2eb6ce1fcff..59d7dadfbfb71 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -2070,7 +2070,7 @@ csio_eh_lun_reset_handler(struct scsi_cmnd *cmnd) struct csio_scsi_level_data sld; if (!rn) - goto fail; + goto fail_ret; csio_dbg(hw, "Request to reset LUN:%llu (ssni:0x%x tgtid:%d)\n", cmnd->device->lun, rn->flowid, rn->scsi_id); @@ -2215,6 +2215,7 @@ csio_eh_lun_reset_handler(struct scsi_cmnd *cmnd) csio_put_scsi_ioreq_lock(hw, scsim, ioreq); fail: CSIO_INC_STATS(rn, n_lun_rst_fail); +fail_ret: return FAILED; } -- 2.51.0