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From: Sasha Levin <sashal@kernel•org>
To: linux-kernel@vger•kernel.org, stable@vger•kernel.org
Cc: Phong Tran <tranmanphong@gmail•com>,
	syzbot+8a3fc6674bbc3978ed4e@syzkaller•appspotmail.com,
	"David S . Miller" <davem@davemloft•net>,
	Sasha Levin <sashal@kernel•org>,
	linux-usb@vger•kernel.org, netdev@vger•kernel.org,
	clang-built-linux@googlegroups•com
Subject: [PATCH AUTOSEL 5.2 222/249] net: usb: asix: init MAC address buffers
Date: Mon, 15 Jul 2019 09:46:27 -0400	[thread overview]
Message-ID: <20190715134655.4076-222-sashal@kernel.org> (raw)
In-Reply-To: <20190715134655.4076-1-sashal@kernel.org>

From: Phong Tran <tranmanphong@gmail•com>

[ Upstream commit 78226f6eaac80bf30256a33a4926c194ceefdf36 ]

This is for fixing bug KMSAN: uninit-value in ax88772_bind

Tested by
https://groups.google.com/d/msg/syzkaller-bugs/aFQurGotng4/eB_HlNhhCwAJ

Reported-by: syzbot+8a3fc6674bbc3978ed4e@syzkaller•appspotmail.com

syzbot found the following crash on:

HEAD commit:    f75e4cfe kmsan: use kmsan_handle_urb() in urb.c
git tree:       kmsan
console output: https://syzkaller.appspot.com/x/log.txt?x=136d720ea00000
kernel config:
https://syzkaller.appspot.com/x/.config?x=602468164ccdc30a
dashboard link:
https://syzkaller.appspot.com/bug?extid=8a3fc6674bbc3978ed4e
compiler:       clang version 9.0.0 (/home/glider/llvm/clang
06d00afa61eef8f7f501ebdb4e8612ea43ec2d78)
syz repro:
https://syzkaller.appspot.com/x/repro.syz?x=12788316a00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=120359aaa00000

==================================================================
BUG: KMSAN: uninit-value in is_valid_ether_addr
include/linux/etherdevice.h:200 [inline]
BUG: KMSAN: uninit-value in asix_set_netdev_dev_addr
drivers/net/usb/asix_devices.c:73 [inline]
BUG: KMSAN: uninit-value in ax88772_bind+0x93d/0x11e0
drivers/net/usb/asix_devices.c:724
CPU: 0 PID: 3348 Comm: kworker/0:2 Not tainted 5.1.0+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x191/0x1f0 lib/dump_stack.c:113
  kmsan_report+0x130/0x2a0 mm/kmsan/kmsan.c:622
  __msan_warning+0x75/0xe0 mm/kmsan/kmsan_instr.c:310
  is_valid_ether_addr include/linux/etherdevice.h:200 [inline]
  asix_set_netdev_dev_addr drivers/net/usb/asix_devices.c:73 [inline]
  ax88772_bind+0x93d/0x11e0 drivers/net/usb/asix_devices.c:724
  usbnet_probe+0x10f5/0x3940 drivers/net/usb/usbnet.c:1728
  usb_probe_interface+0xd66/0x1320 drivers/usb/core/driver.c:361
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_set_configuration+0x30dc/0x3750 drivers/usb/core/message.c:2027
  generic_probe+0xe7/0x280 drivers/usb/core/generic.c:210
  usb_probe_device+0x14c/0x200 drivers/usb/core/driver.c:266
  really_probe+0xdae/0x1d80 drivers/base/dd.c:513
  driver_probe_device+0x1b3/0x4f0 drivers/base/dd.c:671
  __device_attach_driver+0x5b8/0x790 drivers/base/dd.c:778
  bus_for_each_drv+0x28e/0x3b0 drivers/base/bus.c:454
  __device_attach+0x454/0x730 drivers/base/dd.c:844
  device_initial_probe+0x4a/0x60 drivers/base/dd.c:891
  bus_probe_device+0x137/0x390 drivers/base/bus.c:514
  device_add+0x288d/0x30e0 drivers/base/core.c:2106
  usb_new_device+0x23e5/0x2ff0 drivers/usb/core/hub.c:2534
  hub_port_connect drivers/usb/core/hub.c:5089 [inline]
  hub_port_connect_change drivers/usb/core/hub.c:5204 [inline]
  port_event drivers/usb/core/hub.c:5350 [inline]
  hub_event+0x48d1/0x7290 drivers/usb/core/hub.c:5432
  process_one_work+0x1572/0x1f00 kernel/workqueue.c:2269
  process_scheduled_works kernel/workqueue.c:2331 [inline]
  worker_thread+0x189c/0x2460 kernel/workqueue.c:2417
  kthread+0x4b5/0x4f0 kernel/kthread.c:254
  ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Signed-off-by: Phong Tran <tranmanphong@gmail•com>
Signed-off-by: David S. Miller <davem@davemloft•net>
Signed-off-by: Sasha Levin <sashal@kernel•org>
---
 drivers/net/usb/asix_devices.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index c9bc96310ed4..ef548beba684 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -226,7 +226,7 @@ static void asix_phy_reset(struct usbnet *dev, unsigned int reset_bits)
 static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret = 0;
-	u8 buf[ETH_ALEN];
+	u8 buf[ETH_ALEN] = {0};
 	int i;
 	unsigned long gpio_bits = dev->driver_info->data;
 
@@ -677,7 +677,7 @@ static int asix_resume(struct usb_interface *intf)
 static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret, i;
-	u8 buf[ETH_ALEN], chipcode = 0;
+	u8 buf[ETH_ALEN] = {0}, chipcode = 0;
 	u32 phyid;
 	struct asix_common_private *priv;
 
@@ -1061,7 +1061,7 @@ static const struct net_device_ops ax88178_netdev_ops = {
 static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
 {
 	int ret;
-	u8 buf[ETH_ALEN];
+	u8 buf[ETH_ALEN] = {0};
 
 	usbnet_get_endpoints(dev,intf);
 
-- 
2.20.1


  parent reply	other threads:[~2019-07-15 14:01 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-15 13:42 [PATCH AUTOSEL 5.2 001/249] ath10k: Check tx_stats before use it Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 002/249] ath10k: htt: don't use txdone_fifo with SDIO Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 003/249] ath10k: fix incorrect multicast/broadcast rate setting Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 004/249] ath9k: Don't trust TX status TID number when reporting airtime Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 005/249] wil6210: fix potential out-of-bounds read Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 006/249] ath10k: Do not send probe response template for mesh Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 008/249] ath9k: Check for errors when reading SREV register Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 009/249] ath10k: Fix the wrong value of enums for wmi tlv stats id Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 010/249] wil6210: fix missed MISC mbox interrupt Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 011/249] ath6kl: add some bounds checking Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 012/249] ath10k: add peer id check in ath10k_peer_find_by_id Sasha Levin
2019-07-15 13:42 ` [PATCH AUTOSEL 5.2 014/249] wil6210: fix spurious interrupts in 3-msi Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 015/249] ath: DFS JP domain W56 fixed pulse type 3 RADAR detection Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 016/249] ath10k: Fix encoding for protected management frames Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 018/249] batman-adv: fix for leaked TVLV handler Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 024/249] selftests/bpf: adjust verifier scale test Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 027/249] ice: Gracefully handle reset failure in ice_alloc_vfs() Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 030/249] net: stmmac: dwmac1000: Clear unused address entries Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 031/249] net: stmmac: dwmac4/5: " Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 032/249] net: stmmac: Prevent missing interrupts when running NAPI Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 033/249] ice: Fix couple of issues in ice_vsi_release Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 034/249] net: mvpp2: cls: Extract the RSS context when parsing the ethtool rule Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 035/249] net: hns3: initialize CPU reverse mapping Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 036/249] net: hns3: fix for FEC configuration Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 037/249] qed: Set the doorbell address correctly Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 040/249] af_key: fix leaks in key_pol_get_resp and dump_sp Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 041/249] xfrm: Fix xfrm sel prefix length validation Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 047/249] Revert "e1000e: fix cyclic resets at link up with active tx" Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 048/249] e1000e: start network tx queue only when link is up Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 049/249] ice: Check all VFs for MDD activity, don't disable Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 054/249] net: phy: Check against net_device being NULL Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 055/249] net: dsa: sja1105: Fix broken fixed-link interfaces on user ports Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 059/249] batman-adv: Fix duplicated OGMs on NETDEV_UP Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 064/249] net: hns3: add a check to pointer in error_detected and slot_reset Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 065/249] net: hns3: set ops to null when unregister ad_dev Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 072/249] net: stmmac: dwmac4: fix flow control issue Sasha Levin
2019-07-15 13:43 ` [PATCH AUTOSEL 5.2 073/249] net: stmmac: modify default value of tx-frames Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 075/249] net: fec: Do not use netdev messages too early Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 076/249] net: axienet: Fix race condition causing TX hang Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 079/249] net: sfp: add mutex to prevent concurrent state checks Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 080/249] netfilter: ipset: fix a missing check of nla_parse Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 081/249] ipset: Fix memory accounting for hash types on resize Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 085/249] selftests/bpf : clean up feature/ when make clean Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 095/249] bpf: silence warning messages in core Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 104/249] qed: iWARP - Fix tc for MPA ll2 connection Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 105/249] net: hns3: fix for dereferencing before null checking Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 106/249] net: hns3: fix for skb leak when doing selftest Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 107/249] net: hns3: delay ring buffer clearing during reset Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 110/249] xfrm: fix sa selector validation Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 119/249] vhost_net: disable zerocopy by default Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 120/249] iavf: allow null RX descriptors Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 124/249] bpf: fix callees pruning callers Sasha Levin
2019-07-15 13:44 ` [PATCH AUTOSEL 5.2 127/249] net: netsec: initialize tx ring on ndo_open Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 141/249] ipsec: select crypto ciphers for xfrm_algo Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 143/249] ipvs: defer hook registration to avoid leaks Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 156/249] net: stmmac: sun8i: force select external PHY when no internal one Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 157/249] rtlwifi: rtl8192cu: fix error handle when usb probe failed Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 158/249] mt7601u: do not schedule rx_tasklet when the device has been disconnected Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 160/249] mt7601u: fix possible memory leak when the device is disconnected Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 161/249] ipvs: fix tinfo memory leak in start_sync_thread Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 162/249] mt76: mt7615: do not process rx packets if the device is not initialized Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 163/249] ath10k: add missing error handling Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 164/249] ath10k: fix fw crash by moving chip reset after napi disabled Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 165/249] ath10k: fix PCIE device wake up failed Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 174/249] netfilter: ctnetlink: Fix regression in conntrack entry deletion Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 175/249] xsk: Properly terminate assignment in xskq_produce_flush_desc Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 177/249] bpf: fix BPF_ALU32 | BPF_ARSH on BE arches Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 180/249] net: hns3: restore the MAC autoneg state after reset Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 181/249] net/mlx5: Get vport ACL namespace by vport index Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 182/249] ixgbe: Check DDM existence in transceiver before access Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 186/249] ath9k: correctly handle short radar pulses Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 187/249] wil6210: drop old event after wmi_call timeout Sasha Levin
2019-07-15 13:45 ` [PATCH AUTOSEL 5.2 189/249] net/mlx5e: Attach/detach XDP program safely Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 199/249] net: hns3: fix a -Wformat-nonliteral compile warning Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 200/249] net: hns3: add some error checking in hclge_tm module Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 201/249] ath10k: Fix memory leak in qmi Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 202/249] ath10k: destroy sdio workqueue while remove sdio module Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 203/249] net: mvpp2: prs: Don't override the sign bit in SRAM parser shift Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 204/249] igb: clear out skb->tstamp after reading the txtime Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 205/249] net: hns3: add Asym Pause support to fix autoneg problem Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 206/249] net: ethernet: ti: cpsw: Assign OF node to slave devices Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 207/249] ixgbe: Avoid NULL pointer dereference with VF on non-IPsec hw Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 208/249] iwlwifi: mvm: Drop large non sta frames Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 209/249] bpf: fix uapi bpf_prog_info fields alignment Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 210/249] netfilter: Fix remainder of pseudo-header protocol 0 Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 211/249] iwlwifi: dbg: fix debug monitor stop and restart delays Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 212/249] bnxt_en: Disable bus master during PCI shutdown and driver unload Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 213/249] bnxt_en: Fix statistics context reservation logic for RDMA driver Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 214/249] bnxt_en: Cap the returned MSIX vectors to the " Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 220/249] vxlan: do not destroy fdb if register_netdevice() is failed Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 221/249] bnx2x: Prevent ptp_task to be rescheduled indefinitely Sasha Levin
2019-07-15 13:46 ` Sasha Levin [this message]
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 224/249] libbpf: fix GCC8 warning for strncpy Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 225/249] bpf, libbpf, smatch: Fix potential NULL pointer dereference Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 226/249] selftests: bpf: fix inlines in test_lwt_seg6local Sasha Levin
2019-07-17  9:43   ` Jiri Benc
2019-07-17 23:47     ` Sasha Levin
2019-07-18  7:36       ` Jiri Benc
2019-07-18 18:55         ` David Miller
2019-07-19  7:54           ` Jiri Benc
2019-07-18 19:32         ` Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 227/249] bonding: validate ip header before check IPPROTO_IGMP Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 231/249] tools: bpftool: Fix json dump crash on powerpc Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 232/249] net: hns3: enable broadcast promisc mode when initializing VF Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 233/249] net: hns3: fix port capbility updating issue Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 237/249] Bluetooth: 6lowpan: search for destination address in all peers Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 240/249] Bluetooth: Check state in l2cap_disconnect_rsp Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 241/249] Bluetooth: hidp: NUL terminate a string in the compat ioctl Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 242/249] gtp: add missing gtp_encap_disable_sock() in gtp_encap_enable() Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 243/249] Bluetooth: validate BLE connection interval updates Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 244/249] gtp: fix suspicious RCU usage Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 245/249] gtp: fix Illegal context switch in RCU read-side critical section Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 246/249] gtp: fix use-after-free in gtp_encap_destroy() Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 247/249] gtp: fix use-after-free in gtp_newlink() Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 248/249] xdp: fix race on generic receive path Sasha Levin
2019-07-15 13:46 ` [PATCH AUTOSEL 5.2 249/249] net: mvmdio: defer probe of orion-mdio if a clock is not ready Sasha Levin

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