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([2001:250:5800:1002::de93]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-877a94f4fefsm130384b3a.25.2026.09.18.10.43.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Sep 2026 10:43:11 -0700 (PDT) From: Guangshuo Li To: "James E.J. Bottomley" , "Martin K. Petersen" , linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Guangshuo Li , stable@vger.kernel.org Subject: [PATCH] scsi: sim710: put SCSI host on remove Date: Sat, 19 Sep 2026 01:43:04 +0800 Message-ID: <20260918174304.3611005-1-lgs201920130244@gmail.com> X-Mailer: git-send-email 2.43.0 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 Content-Type: text/plain; charset="utf-8" sim710_probe_common() obtains a SCSI host through NCR_700_detect(). The probe failure path drops the host reference with scsi_host_put(), but the normal remove path does not perform the corresponding cleanup. As a result, the SCSI host reference remains allocated after the device is removed. Call scsi_host_put() after all users of the SCSI host have been torn down to release the reference acquired during probe. This issue was found by manual code inspection. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Signed-off-by: Guangshuo Li --- drivers/scsi/sim710.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c index 408f37003748..c3454e04c1e7 100644 --- a/drivers/scsi/sim710.c +++ b/drivers/scsi/sim710.c @@ -153,6 +153,7 @@ static int sim710_device_remove(struct device *dev) kfree(hostdata); free_irq(host->irq, host); release_region(host->base, 64); + scsi_host_put(host); return 0; } =20 --=20 2.43.0