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authorJia-Ju Bai <baijiaju1990@gmail.com>2019-07-29 16:44:51 +0800
committerMartin K. Petersen <martin.petersen@oracle.com>2019-07-30 12:49:46 -0400
commite82f04ec6ba91065fd33a6201ffd7cab840e1475 (patch)
treeaa9866fe8914b1645e4e38a5b9b74b301d0f3ee9 /drivers/scsi/lpfc/lpfc_init.c
parentscsi: mpt3sas: Use 63-bit DMA addressing on SAS35 HBA (diff)
downloadlinux-dev-e82f04ec6ba91065fd33a6201ffd7cab840e1475.tar.xz
linux-dev-e82f04ec6ba91065fd33a6201ffd7cab840e1475.zip
scsi: qla2xxx: Fix possible fcport null-pointer dereferences
In qla2x00_alloc_fcport(), fcport is assigned to NULL in the error handling code on line 4880: fcport = NULL; Then fcport is used on lines 4883-4886: INIT_WORK(&fcport->del_work, qla24xx_delete_sess_fn); INIT_WORK(&fcport->reg_work, qla_register_fcport_fn); INIT_LIST_HEAD(&fcport->gnl_entry); INIT_LIST_HEAD(&fcport->list); Thus, possible null-pointer dereferences may occur. To fix these bugs, qla2x00_alloc_fcport() directly returns NULL in the error handling code. These bugs are found by a static analysis tool STCheck written by us. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Acked-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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