From: Sasha Levin <sashal@kernel•org>
To: linux-kernel@vger•kernel.org, stable@vger•kernel.org
Cc: Deren Wu <deren.wu@mediatek•com>,
Lorenzo Bianconi <lorenzo@kernel•org>,
Sean Wang <sean.wang@mediatek•com>, Felix Fietkau <nbd@nbd•name>,
Sasha Levin <sashal@kernel•org>,
lorenzo.bianconi83@gmail•com, ryder.lee@mediatek•com,
kvalo@kernel•org, davem@davemloft•net, kuba@kernel•org,
pabeni@redhat•com, matthias.bgg@gmail•com,
linux-wireless@vger•kernel.org, netdev@vger•kernel.org,
linux-arm-kernel@lists•infradead.org,
linux-mediatek@lists•infradead.org
Subject: [PATCH AUTOSEL 5.17 138/149] mt76: fix monitor mode crash with sdio driver
Date: Fri, 1 Apr 2022 10:25:25 -0400 [thread overview]
Message-ID: <20220401142536.1948161-138-sashal@kernel.org> (raw)
In-Reply-To: <20220401142536.1948161-1-sashal@kernel.org>
From: Deren Wu <deren.wu@mediatek•com>
[ Upstream commit 123bc712b1de0805f9d683687e17b1ec2aba0b68 ]
mt7921s driver may receive frames with fragment buffers. If there is a
CTS packet received in monitor mode, the payload is 10 bytes only and
need 6 bytes header padding after RXD buffer. However, only RXD in the
first linear buffer, if we pull buffer size RXD-size+6 bytes with
skb_pull(), that would trigger "BUG_ON(skb->len < skb->data_len)" in
__skb_pull().
To avoid the nonlinear buffer issue, enlarge the RXD size from 128 to
256 to make sure all MCU operation in linear buffer.
[ 52.007562] kernel BUG at include/linux/skbuff.h:2313!
[ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[ 52.007987] pc : skb_pull+0x48/0x4c
[ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common]
[ 52.008361] Call trace:
[ 52.008377] skb_pull+0x48/0x4c
[ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c]
[ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917]
[ 52.008449] kthread+0x148/0x3ac
[ 52.008466] ret_from_fork+0x10/0x30
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel•org>
Signed-off-by: Sean Wang <sean.wang@mediatek•com>
Signed-off-by: Deren Wu <deren.wu@mediatek•com>
Signed-off-by: Felix Fietkau <nbd@nbd•name>
Signed-off-by: Sasha Levin <sashal@kernel•org>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 404c3d1a70d6..368a5c6455b1 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -19,7 +19,7 @@
#define MT_MCU_RING_SIZE 32
#define MT_RX_BUF_SIZE 2048
-#define MT_SKB_HEAD_LEN 128
+#define MT_SKB_HEAD_LEN 256
#define MT_MAX_NON_AQL_PKT 16
#define MT_TXQ_FREE_THR 32
--
2.34.1
next prev parent reply other threads:[~2022-04-01 14:34 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20220401142536.1948161-1-sashal@kernel.org>
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 002/149] Bluetooth: hci_sync: Fix compilation warning Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 003/149] ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 004/149] Bluetooth: fix null ptr deref on hci_sync_conn_complete_evt Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 009/149] Bluetooth: hci_event: Ignore multiple conn complete events Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 017/149] ptp: replace snprintf with sysfs_emit Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 018/149] Bluetooth: hci_sync: Fix queuing commands when HCI_UNREGISTER is set Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 019/149] selftests, xsk: Fix bpf_res cleanup test Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 020/149] net/mlx5e: TC, Hold sample_attr on stack instead of pointer Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 025/149] mlxsw: spectrum: Guard against invalid local ports Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 029/149] ath11k: fix kernel panic during unload/load ath11k modules Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 030/149] ath11k: pci: fix crash on suspend if board file is not found Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 031/149] ath11k: mhi: use mhi_sync_power_up() Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 032/149] net/smc: Send directly when TCP_CORK is cleared Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 034/149] bpf: Make dst_port field in struct bpf_sock 16-bit wide Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 039/149] mt76: mt7921: fix crash when startup fails Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 040/149] mt76: dma: initialize skip_unmap in mt76_dma_rx_fill Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 041/149] i40e: Add sending commands in atomic context Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 042/149] cfg80211: don't add non transmitted BSS to 6GHz scanned channels Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 043/149] libbpf: Fix build issue with llvm-readelf Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 044/149] ipv6: make mc_forwarding atomic Sasha Levin
2022-04-01 14:23 ` [PATCH AUTOSEL 5.17 046/149] net: initialize init_net earlier Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 060/149] libbpf: Fix accessing syscall arguments on powerpc Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 061/149] libbpf: Fix accessing the first syscall argument on arm64 Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 062/149] libbpf: Fix accessing the first syscall argument on s390 Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 064/149] tcp: Don't acquire inet_listen_hashbucket::lock with disabled BH Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 074/149] net/mlx5e: Disable TX queues before registering the netdev Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 078/149] iwlwifi: mvm: Correctly set fragmented EBS Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 079/149] iwlwifi: mvm: Passively scan non PSC channels only when requested so Sasha Levin
2022-04-01 14:52 ` Ben Greear
2022-04-09 14:04 ` Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 080/149] iwlwifi: fix small doc mistake for iwl_fw_ini_addr_val Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 081/149] iwlwifi: mvm: move only to an enabled channel Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 082/149] ipv6: annotate some data-races around sk->sk_prot Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 085/149] rtw89: fix RCU usage in rtw89_core_txq_push() Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 086/149] ath11k: Fix frames flush failure caused by deadlock Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 087/149] ipv4: Invalidate neighbour for broadcast address upon address addition Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 088/149] rtw88: change rtw_info() to proper message level Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 099/149] mt76: mt7915: fix injected MPDU transmission to not use HW A-MSDU Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 101/149] mctp: make __mctp_dev_get() take a refcount hold Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 103/149] mt76: mt7615: Fix assigning negative values to unsigned variable Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 109/149] net/smc: correct settings of RMB window update limit Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 111/149] iavf: stop leaking iavf_status as "errno" values Sasha Levin
2022-04-01 14:24 ` [PATCH AUTOSEL 5.17 112/149] macvtap: advertise link netns via netlink Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 114/149] tuntap: add sanity checks about msg_controllen in sendmsg Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 117/149] Bluetooth: Fix not checking for valid hdev on bt_dev_{info,warn,err,dbg} Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 118/149] Bluetooth: use memset avoid memory leaks Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 119/149] bnxt_en: Eliminate unintended link toggle during FW reset Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 123/149] powerpc/64e: Tie PPC_BOOK3E_64 to PPC_FSL_BOOK3E Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 127/149] can: isotp: set default value for N_As to 50 micro seconds Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 128/149] can: etas_es58x: es58x_fd_rx_event_msg(): initialize rx_event_msg before calling es58x_check_msg_len() Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 130/149] net: account alternate interface name memory Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 131/149] net: limit altnames to 64k total Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 132/149] net/mlx5e: Remove overzealous validations in netlink EEPROM query Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 135/149] net: sfp: add 2500base-X quirk for Lantech SFP module Sasha Levin
2022-04-01 14:25 ` Sasha Levin [this message]
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 140/149] iwlwifi: mei: fix building iwlmei Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 142/149] Bluetooth: Fix use after free in hci_send_acl Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 143/149] netfilter: conntrack: revisit gc autotuning Sasha Levin
2022-04-01 14:25 ` [PATCH AUTOSEL 5.17 144/149] netlabel: fix out-of-bounds memory accesses Sasha Levin
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