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Date: Tue, 10 Aug 2021 21:48:03 +0800 From: Tuo Li <islituo@...il.com> To: martin.petersen@...cle.com Cc: baijiaju1990@...il.com, linux-scsi@...r.kernel.org, target-devel@...r.kernel.org, Linux Kernel <linux-kernel@...r.kernel.org> Subject: [BUG] scsi: iscsi: possible null-pointer dereference in iscsit_tpg_add_network_portal() Hello, Our static analysis tool finds a possible null-pointer dereference in the iscsi driver in Linux 5.14.0-rc3: The variable tpg->tpg_tiqn is checked in: 496: if (tpg->tpg_tiqn) This indicates that it can be NULL. If so, a null-pointer dereference will occur: 508: pr_debug("CORE[%s] - Added Network Portal: %pISpc,%hu on %s\n", tpg->tpg_tiqn->tiqn, ...) I am not quite sure whether this possible null-pointer dereference is real and how to fix it if it is real. Any feedback would be appreciated, thanks! Reported-by: TOTE Robot <oslab@...nghua.edu.cn> Best wishes, Tuo Li
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