From nobody Fri Sep 25 02:06:46 2026 Received: from cstnet.cn (smtp25.cstnet.cn [159.226.251.25]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86DE045BE3; Thu, 17 Sep 2026 15:18:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.25 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789658328; cv=none; b=uyvmfN16uZlOpZusbqV6DPivQuNHeTLp5M9VjXkPiEA8FRGkvCqpPIXE7DeEHGsQB1ZM1KzxYNyha2LskSxs8CAhQzxRpe8HczFtq28QY2Jf9gjuWto75vHx4l7Fg/Okj4CtaYBzwDtkyeBEB2LOYlc5YcASfhPmKJnCRq8xAyA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789658328; c=relaxed/simple; bh=jPFR28v535VHgmUsZ2xAjS5/Sf1zVqdsI8NvQfGMpvg=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=YSkZt4PTAcvIvyVq7nViMFrbflKggje+qIAuvNes2jqo9868WdfJnfWrAAq4OIdukqm3rLduTQeMzVm0B9Nyn0hQ1zrIaox+x6U4IC5CqUqLQnZgNHeJ0JpSyxVROLFHntvFmRioXdjstN2ZUQjYn4rVKbOTR9e6UoRf0BjJnzE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from dfae2b116770.home.arpa (unknown [36.110.52.2]) by APP-05 (Coremail) with SMTP id zQCowABHtD7EBKxq5GKDCA--.5596S2; Thu, 17 Sep 2026 23:18:28 +0800 (CST) From: Wentao Liang To: James.Bottomley@HansenPartnership.com Cc: hare@kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, martin.petersen@oracle.com, Wentao Liang , stable@vger.kernel.org Subject: [PATCH] scsi: myrs: Fix scsi_device reference leak in myrs_log_event() Date: Thu, 17 Sep 2026 15:18:28 +0000 Message-Id: <20260917151828.2158730-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: zQCowABHtD7EBKxq5GKDCA--.5596S2 X-Coremail-Antispam: 1UD129KBjvdXoWrtw4UurW7GF48tF47AryxZrb_yoWfuwc_Wr 4Fvr9rXFyUCF92k34xtrnrAr9a93ZrW3yrCw1ktr93CFW8XFyIvr45ZrZ0v3y7Ww48Aa4Y gw1DAF4Fyw17WjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbS8YjsxI4VWkKwAYFVCjjxCrM7CY07I20VC2zVCF04k26cxKx2IY s7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4 kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_ Gr1j6F4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxV W0oVCq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv 7VC0I7IYx2IY67AKxVWUtVWrXwAv7VC2z280aVAFwI0_Cr1j6rxdMcvjeVCFs4IE7xkEbV WUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VAI37AI020EjII2zVCS5cI20VAGYxC7MxkF 7I0En4kS14v26r126r1DMxAIw28IcxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_Gr43Wr 1UJr1l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8G jcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2I x0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAI w20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Gr1j6F4UJwCI42IY6I8E87Iv6x kF7I0E14v26rxl6s0DYxBIdaVFxhVjvjDU0xZFpf9x07b818PUUUUU= X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiBwENA2qr9tghpAAAsi Content-Type: text/plain; charset="utf-8" scsi_device_lookup() returns a scsi_device with an extra reference that the caller has to drop with scsi_device_put(). The physical device event handler never releases it, so the scsi_device reference is leaked for every physical device event reported by the controller. Drop the reference after the device state has been updated. Fixes: 77266186397c ("scsi: myrs: Add Mylex RAID controller (SCSI interface= )") Cc: stable@vger.kernel.org Signed-off-by: Wentao Liang --- drivers/scsi/myrs.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c index afd68225221a..79ee3a352524 100644 --- a/drivers/scsi/myrs.c +++ b/drivers/scsi/myrs.c @@ -875,6 +875,8 @@ static void myrs_log_event(struct myrs_hba *cs, struct = myrs_event *ev) break; } } + if (sdev) + scsi_device_put(sdev); break; case 'L': shost_printk(KERN_INFO, shost, --=20 2.34.1