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Message-Id: <1322706601-26181-1-git-send-email-haogangchen@gmail.com> Date: Wed, 30 Nov 2011 21:30:01 -0500 From: Haogang Chen <haogangchen@...il.com> To: aacraid@...ptec.com Cc: JBottomley@...allels.com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org, haogangchen@...il.com Subject: [PATCH] SCSI: aacraid: potential integer overflow in aac_get_containers() There is a potential integer overflow in aac_get_containers(). When maximum_num_containers is large, the subsequent call to kzalloc() will allocate a buffer smaller than expected, which leads to memory corruption in the for loop. The patch replaces kzalloc with kcalloc. Signed-off-by: Haogang Chen <haogangchen@...il.com> --- drivers/scsi/aacraid/aachba.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 409f580..440b84d 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -381,7 +381,7 @@ int aac_get_containers(struct aac_dev *dev) if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS) maximum_num_containers = MAXIMUM_NUM_CONTAINERS; - fsa_dev_ptr = kzalloc(sizeof(*fsa_dev_ptr) * maximum_num_containers, + fsa_dev_ptr = kcalloc(maximum_num_containers, sizeof(*fsa_dev_ptr), GFP_KERNEL); if (!fsa_dev_ptr) return -ENOMEM; -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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