From: Stephen Hemminger <stephen@networkplumber.org>
To: ajit.khaparde@broadcom.com, somnath.kotur@broadcom.com
Cc: dev@dpdk.org, Stephen Hemminger <stephen@networkplumber.org>,
Christopher Ertl <Christopher.Ertl@microsoft.com>
Subject: [dpdk-dev] [PATCH 3/6] net/bnxt: avoid potential out of bounds read
Date: Tue, 3 Mar 2020 09:59:35 -0800 [thread overview]
Message-ID: <20200303175938.14292-4-stephen@networkplumber.org> (raw)
In-Reply-To: <20200303175938.14292-1-stephen@networkplumber.org>
If hardware returned a bogus number of vnic's from the
query it could cause an out of bounds read into vnic table.
Reported-by: Christopher Ertl <Christopher.Ertl@microsoft.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/bnxt/bnxt_hwrm.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 20e2f6a36713..ad8bdb1c2913 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -4029,6 +4029,12 @@ static int bnxt_hwrm_func_vf_vnic_query(struct bnxt *bp, uint16_t vf,
HWRM_UNLOCK();
+ if (rc > bp->pf.total_vnics) {
+ PMD_DRV_LOG(ERR,
+ "Vnic id %d is out of range\n", rc);
+ return -EINVAL;
+ }
+
return rc;
}
--
2.20.1
next prev parent reply other threads:[~2020-03-03 18:00 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-03 17:59 [dpdk-dev] [PATCH 0/6] net/bnxt: bounds checking patches Stephen Hemminger
2020-03-03 17:59 ` [dpdk-dev] [PATCH 1/6] eal: add portable way to check for math overflow Stephen Hemminger
2020-03-03 22:28 ` Dmitry Kozlyuk
2020-03-03 17:59 ` [dpdk-dev] [PATCH 2/6] net/bnxt: fix potential data race Stephen Hemminger
2020-03-03 18:13 ` [dpdk-dev] [EXTERNAL] " Christopher Ertl
2020-03-03 18:16 ` Stephen Hemminger
2020-03-03 17:59 ` Stephen Hemminger [this message]
2020-03-03 17:59 ` [dpdk-dev] [PATCH 4/6] net/bnxt: check for integer overflow in buffer sizing Stephen Hemminger
2020-03-03 17:59 ` [dpdk-dev] [PATCH 5/6] net/bnxt: add integer underflow check Stephen Hemminger
2020-03-03 17:59 ` [dpdk-dev] [PATCH 6/6] net/bnxt: sanitize max_l2_ctx Stephen Hemminger
2020-03-31 11:47 ` [dpdk-dev] [PATCH 0/6] net/bnxt: bounds checking patches Ferruh Yigit
2020-03-31 17:52 ` Ajit Khaparde
2020-03-31 18:04 ` Stephen Hemminger
2020-10-19 22:28 ` Thomas Monjalon
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