From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Johannes Berg <johannes.berg@intel.com>,
syzbot+d451401ffd00a60677ee@syzkaller.appspotmail.com,
Sasha Levin <sashal@kernel.org>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 09/26] cfg80211: regulatory: reject invalid hints
Date: Mon, 7 Sep 2020 12:34:09 -0400 [thread overview]
Message-ID: <20200907163426.1281284-9-sashal@kernel.org> (raw)
In-Reply-To: <20200907163426.1281284-1-sashal@kernel.org>
From: Johannes Berg <johannes.berg@intel.com>
[ Upstream commit 47caf685a6854593348f216e0b489b71c10cbe03 ]
Reject invalid hints early in order to not cause a kernel
WARN later if they're restored to or similar.
Reported-by: syzbot+d451401ffd00a60677ee@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?extid=d451401ffd00a60677ee
Link: https://lore.kernel.org/r/20200819084648.13956-1-johannes@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/wireless/reg.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 32f575857e415..935aebf150107 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -2936,6 +2936,9 @@ int regulatory_hint_user(const char *alpha2,
if (WARN_ON(!alpha2))
return -EINVAL;
+ if (!is_world_regdom(alpha2) && !is_an_alpha2(alpha2))
+ return -EINVAL;
+
request = kzalloc(sizeof(struct regulatory_request), GFP_KERNEL);
if (!request)
return -ENOMEM;
--
2.25.1
next prev parent reply other threads:[~2020-09-07 16:53 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-07 16:34 [PATCH AUTOSEL 4.19 01/26] ARC: HSDK: wireup perf irq Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 02/26] dmaengine: acpi: Put the CSRT table after using it Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 03/26] netfilter: conntrack: allow sctp hearbeat after connection re-use Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 04/26] drivers/net/wan/lapbether: Added needed_tailroom Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 05/26] NFC: st95hf: Fix memleak in st95hf_in_send_cmd Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 06/26] firestream: Fix memleak in fs_open Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 07/26] ALSA: hda: Fix 2 channel swapping for Tegra Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 08/26] drivers/net/wan/lapbether: Set network_header before transmitting Sasha Levin
2020-09-07 16:34 ` Sasha Levin [this message]
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 10/26] net: usb: Fix uninit-was-stored issue in asix_read_phy_addr() Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 11/26] xfs: initialize the shortform attr header padding entry Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 12/26] irqchip/eznps: Fix build error for !ARC700 builds Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 13/26] nvme-fabrics: don't check state NVME_CTRL_NEW for request acceptance Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 14/26] nvme: have nvme_wait_freeze_timeout return if it timed out Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 15/26] nvme-rdma: serialize controller teardown sequences Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 16/26] HID: quirks: Set INCREMENT_USAGE_ON_DUPLICATE for all Saitek X52 devices Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 17/26] drivers/net/wan/hdlc_cisco: Add hard_header_len Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 18/26] HID: elan: Fix memleak in elan_input_configured Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 19/26] ARC: [plat-hsdk]: Switch ethernet phy-mode to rgmii-id Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 20/26] cpufreq: intel_pstate: Refuse to turn off with HWP enabled Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 21/26] cpufreq: intel_pstate: Fix intel_pstate_get_hwp_max() for turbo disabled Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 22/26] net: usb: dm9601: Add USB ID of Keenetic Plus DSL Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 23/26] ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 24/26] drm/amdgpu: Fix bug in reporting voltage for CIK Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 25/26] iommu/amd: Do not use IOMMUv2 functionality when SME is active Sasha Levin
2020-09-07 16:34 ` [PATCH AUTOSEL 4.19 26/26] gcov: Disable gcov build with GCC 10 Sasha Levin
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