From: Colin King <colin.king@canonical.com> To: Kalle Valo <kvalo@codeaurora.org>, "David S . Miller" <davem@davemloft.net>, linux-wireless@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH] ray_cs: fix array out-of-bounds access Date: Thu, 20 Dec 2018 14:05:50 +0000 [thread overview] Message-ID: <20181220140550.18853-1-colin.king@canonical.com> (raw) From: Colin Ian King <colin.king@canonical.com> Currently array element org[3] is being accessed, however the array is only 3 elements in size, so this looks like an off-by-one out-of-bounds error. Fix this by using org[2], which I believe was the original intent. This issue has existed in the driver back in the pre-git days, so no idea when it was introduced. Detected by CoverityScan, CID#711344 ("Out-of-bounds read") Signed-off-by: Colin Ian King <colin.king@canonical.com> --- drivers/net/wireless/ray_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 33ad87528d9a..8b2741c8edf2 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -959,7 +959,7 @@ static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, if (proto == htons(ETH_P_AARP) || proto == htons(ETH_P_IPX)) { /* This is the selective translation table, only 2 entries */ writeb(0xf8, - &((struct snaphdr_t __iomem *)ptx->var)->org[3]); + &((struct snaphdr_t __iomem *)ptx->var)->org[2]); } /* Copy body of ethernet packet without ethernet header */ memcpy_toio((void __iomem *)&ptx->var + -- 2.19.1
WARNING: multiple messages have this Message-ID (diff)
From: Colin King <colin.king@canonical.com> To: Kalle Valo <kvalo@codeaurora.org>, "David S . Miller" <davem@davemloft.net>, linux-wireless@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH] ray_cs: fix array out-of-bounds access Date: Thu, 20 Dec 2018 14:05:50 +0000 [thread overview] Message-ID: <20181220140550.18853-1-colin.king@canonical.com> (raw) From: Colin Ian King <colin.king@canonical.com> Currently array element org[3] is being accessed, however the array is only 3 elements in size, so this looks like an off-by-one out-of-bounds error. Fix this by using org[2], which I believe was the original intent. This issue has existed in the driver back in the pre-git days, so no idea when it was introduced. Detected by CoverityScan, CID#711344 ("Out-of-bounds read") Signed-off-by: Colin Ian King <colin.king@canonical.com> --- drivers/net/wireless/ray_cs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 33ad87528d9a..8b2741c8edf2 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -959,7 +959,7 @@ static int translate_frame(ray_dev_t *local, struct tx_msg __iomem *ptx, if (proto = htons(ETH_P_AARP) || proto = htons(ETH_P_IPX)) { /* This is the selective translation table, only 2 entries */ writeb(0xf8, - &((struct snaphdr_t __iomem *)ptx->var)->org[3]); + &((struct snaphdr_t __iomem *)ptx->var)->org[2]); } /* Copy body of ethernet packet without ethernet header */ memcpy_toio((void __iomem *)&ptx->var + -- 2.19.1
next reply other threads:[~2018-12-20 14:05 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-12-20 14:05 Colin King [this message] 2018-12-20 14:05 ` [PATCH] ray_cs: fix array out-of-bounds access Colin King 2019-01-10 11:32 ` Kalle Valo 2019-01-10 11:32 ` Kalle Valo
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