From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>,
Zhiyong Tao <zhiyong.tao@mediatek.com>,
Chen-Yu Tsai <wenst@chromium.org>,
Linus Walleij <linus.walleij@linaro.org>,
Sasha Levin <sashal@kernel.org>,
sean.wang@kernel.org, matthias.bgg@gmail.com,
linux-mediatek@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.15 01/26] pinctrl: mediatek: fix global-out-of-bounds issue
Date: Mon, 27 Dec 2021 14:03:02 -0500 [thread overview]
Message-ID: <20211227190327.1042326-1-sashal@kernel.org> (raw)
From: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
[ Upstream commit 2d5446da5acecf9c67db1c9d55ae2c3e5de01f8d ]
When eint virtual eint number is greater than gpio number,
it maybe produce 'desc[eint_n]' size globle-out-of-bounds issue.
Signed-off-by: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20211110071900.4490-2-zhiyong.tao@mediatek.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
index 45ebdeba985ae..12163d3c4bcb0 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c
@@ -285,8 +285,12 @@ static int mtk_xt_get_gpio_n(void *data, unsigned long eint_n,
desc = (const struct mtk_pin_desc *)hw->soc->pins;
*gpio_chip = &hw->chip;
- /* Be greedy to guess first gpio_n is equal to eint_n */
- if (desc[eint_n].eint.eint_n == eint_n)
+ /*
+ * Be greedy to guess first gpio_n is equal to eint_n.
+ * Only eint virtual eint number is greater than gpio number.
+ */
+ if (hw->soc->npins > eint_n &&
+ desc[eint_n].eint.eint_n == eint_n)
*gpio_n = eint_n;
else
*gpio_n = mtk_xt_find_eint_num(hw, eint_n);
--
2.34.1
next reply other threads:[~2021-12-27 19:03 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-27 19:03 Sasha Levin [this message]
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 02/26] Input: i8042 - add deferred probe support Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 03/26] Input: iqs626a - prohibit inlining of channel parsing functions Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 04/26] ASoC: SOF: Intel: pci-tgl: add ADL-N support Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 05/26] ASoC: SOF: Intel: pci-tgl: add new ADL-P variant Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 06/26] Input: i8042 - enable deferred probe quirk for ASUS UM325UA Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 07/26] Input: goodix - add id->model mapping for the "9111" model Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 08/26] hwmon: (lm90) Do not report 'busy' status bit as alarm Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 09/26] ASoC: rt5682: fix the wrong jack type detected Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 10/26] ASoC: tas2770: Fix setting of high sample rates Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 11/26] Revert "x86/boot: Pull up cmdline preparation and early param parsing" Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 12/26] tomoyo: Check exceeded quota early in tomoyo_domain_quota_is_ok() Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 13/26] tomoyo: use hwight16() " Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 14/26] x86/boot: Move EFI range reservation after cmdline parsing Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 15/26] net/sched: Extend qdisc control block with tc control block Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 16/26] tun: avoid double free in tun_free_netdev Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 17/26] ax25: NPD bug when detaching AX25 device Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 18/26] Input: elants_i2c - do not check Remark ID on eKTH3900/eKTH5312 Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 19/26] phonet/pep: refuse to enable an unbound pipe Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 20/26] parisc: Clear stale IIR value on instruction access rights trap Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 21/26] platform/mellanox: mlxbf-pmc: Fix an IS_ERR() vs NULL bug in mlxbf_pmc_map_counters Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 22/26] platform/x86: apple-gmux: use resource_size() with res Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 23/26] memblock: fix memblock_phys_alloc() section mismatch error Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 24/26] ALSA: hda: intel-sdw-acpi: harden detection of controller Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 25/26] ALSA: hda: intel-sdw-acpi: go through HDAS ACPI at max depth of 2 Sasha Levin
2021-12-27 19:03 ` [PATCH AUTOSEL 5.15 26/26] r8152: sync ocp base Sasha Levin
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