netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Qiujun Huang <hqjagain@gmail.com>,
	syzbot+b1c61e5f11be5782f192@syzkaller.appspotmail.com,
	Kalle Valo <kvalo@codeaurora.org>,
	Sasha Levin <sashal@kernel.org>,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 002/106] ath9k: Fix use-after-free Write in ath9k_htc_rx_msg
Date: Mon,  8 Jun 2020 19:20:54 -0400	[thread overview]
Message-ID: <20200608232238.3368589-2-sashal@kernel.org> (raw)
In-Reply-To: <20200608232238.3368589-1-sashal@kernel.org>

From: Qiujun Huang <hqjagain@gmail.com>

[ Upstream commit e4ff08a4d727146bb6717a39a8d399d834654345 ]

Write out of slab bounds. We should check epid.

The case reported by syzbot:
https://lore.kernel.org/linux-usb/0000000000006ac55b05a1c05d72@google.com
BUG: KASAN: use-after-free in htc_process_conn_rsp
drivers/net/wireless/ath/ath9k/htc_hst.c:131 [inline]
BUG: KASAN: use-after-free in ath9k_htc_rx_msg+0xa25/0xaf0
drivers/net/wireless/ath/ath9k/htc_hst.c:443
Write of size 2 at addr ffff8881cea291f0 by task swapper/1/0

Call Trace:
 htc_process_conn_rsp drivers/net/wireless/ath/ath9k/htc_hst.c:131
[inline]
ath9k_htc_rx_msg+0xa25/0xaf0
drivers/net/wireless/ath/ath9k/htc_hst.c:443
ath9k_hif_usb_reg_in_cb+0x1ba/0x630
drivers/net/wireless/ath/ath9k/hif_usb.c:718
__usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650
usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716
dummy_timer+0x1258/0x32ae drivers/usb/gadget/udc/dummy_hcd.c:1966
call_timer_fn+0x195/0x6f0 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1449 [inline]
__run_timers kernel/time/timer.c:1773 [inline]
__run_timers kernel/time/timer.c:1740 [inline]
run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1786

Reported-and-tested-by: syzbot+b1c61e5f11be5782f192@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200404041838.10426-4-hqjagain@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/wireless/ath/ath9k/htc_hst.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c
index 1bf63a4efb4c..d2e062eaf561 100644
--- a/drivers/net/wireless/ath/ath9k/htc_hst.c
+++ b/drivers/net/wireless/ath/ath9k/htc_hst.c
@@ -113,6 +113,9 @@ static void htc_process_conn_rsp(struct htc_target *target,
 
 	if (svc_rspmsg->status == HTC_SERVICE_SUCCESS) {
 		epid = svc_rspmsg->endpoint_id;
+		if (epid < 0 || epid >= ENDPOINT_MAX)
+			return;
+
 		service_id = be16_to_cpu(svc_rspmsg->service_id);
 		max_msglen = be16_to_cpu(svc_rspmsg->max_msg_len);
 		endpoint = &target->endpoint[epid];
-- 
2.25.1


  reply	other threads:[~2020-06-08 23:22 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-08 23:20 [PATCH AUTOSEL 4.19 001/106] ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb Sasha Levin
2020-06-08 23:20 ` Sasha Levin [this message]
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 008/106] net: atlantic: make hw_get_regs optional Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 009/106] net: ena: fix error returning in ena_com_get_hash_function() Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 015/106] ixgbe: Fix XDP redirect on archs with PAGE_SIZE above 4K Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 017/106] Bluetooth: Add SCO fallback for invalid LMP parameters error Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 025/106] batman-adv: Revert "disable ethtool link speed detection when auto negotiation off" Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 029/106] net: vmxnet3: fix possible buffer overflow caused by bad DMA value in vmxnet3_get_rss() Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 031/106] ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 032/106] ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 033/106] brcmfmac: fix wrong location to get firmware feature Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 035/106] e1000: Distribute switch variables for initialization Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 043/106] netfilter: nft_nat: return EOPNOTSUPP if type or flags are not supported Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 044/106] selftests/bpf: Fix memory leak in extract_build_id() Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 045/106] net: bcmgenet: set Rx mode before starting netif Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 051/106] net: lpc-enet: fix error return code in lpc_mii_init() Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 053/106] net: allwinner: Fix use correct return type for ndo_start_xmit() Sasha Levin
2020-06-08 23:21 ` [PATCH AUTOSEL 4.19 055/106] ath9k_htc: Silence undersized packet warnings Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 068/106] ath10k: Remove msdu from idr when management pkt send fails Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 069/106] wcn36xx: Fix error handling path in 'wcn36xx_probe()' Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 070/106] net: qed*: Reduce RX and TX default ring count when running inside kdump kernel Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 071/106] mt76: avoid rx reorder buffer overflow Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 073/106] net: dsa: mt7530: set CPU port to fallback mode Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 074/106] veth: Adjust hard_start offset on redirect XDP frames Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 075/106] net/mlx5e: IPoIB, Drop multicast packets that this interface sent Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 076/106] rtlwifi: Fix a double free in _rtl_usb_tx_urb_setup() Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 077/106] mwifiex: Fix memory corruption in dump_station Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 087/106] net: ethernet: fec: move GPR register offset and bit into DT Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 088/106] macvlan: Skip loopback packets in RX handler Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 097/106] ixgbe: fix signed-integer-overflow warning Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 104/106] vxlan: Avoid infinite loop when suppressing NS messages with invalid options Sasha Levin
2020-06-08 23:22 ` [PATCH AUTOSEL 4.19 105/106] net_failover: fixed rollback in net_failover_open() Sasha Levin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200608232238.3368589-2-sashal@kernel.org \
    --to=sashal@kernel.org \
    --cc=hqjagain@gmail.com \
    --cc=kvalo@codeaurora.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    --cc=stable@vger.kernel.org \
    --cc=syzbot+b1c61e5f11be5782f192@syzkaller.appspotmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).