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Date: Mon, 06 Mar 2023 20:42:14 -0500 From: "Martin K. Petersen" <martin.petersen@...cle.com> To: Ranjan Kumar <ranjan.kumar@...adcom.com>, Sreekanth Reddy <sreekanth.reddy@...adcom.com> Cc: Wenchao Hao <haowenchao2@...wei.com>, Sathya Prakash <sathya.prakash@...adcom.com>, Suganath Prabu Subramani <suganath-prabu.subramani@...adcom.com>, "James E . J . Bottomley" <jejb@...ux.ibm.com>, "Martin K . Petersen" <martin.petersen@...cle.com>, <MPT-FusionLinux.pdl@...adcom.com>, <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linfeilong@...wei.com> Subject: Re: [PATCH] scsi: mpt3sas: fix NULL pointer access in mpt3sas_transport_port_add() Ranjan/Sreekanth, > port is allocated by sas_port_alloc_num() and rphy is allocated by > sas_end_device_alloc() or sas_expander_alloc() which may return NULL, > so we need to check the rphy to avoid possible NULL pointer access. > > If sas_rphy_add() called with failure rphy is set to NULL, we would > access the rphy in next lines which would also result NULL pointer > access. > > Fix commit 78316e9dfc24 ("scsi: mpt3sas: Fix possible resource leaks > in mpt3sas_transport_port_add()") Please review! -- Martin K. Petersen Oracle Linux Engineering
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