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general protection fault in ath6kl_usb_alloc_urb_from_pipe

Status: fixed on 2019/10/15 23:40
Subsystems: usb wireless
[Documentation on labels]
Reported-by: syzbot+ead4037ec793e025e66f@syzkaller.appspotmail.com
Fix commit: 39d170b3cb62 ath6kl: fix a NULL-ptr-deref bug in ath6kl_usb_alloc_urb_from_pipe()
First crash: 2028d, last: 1868d
▶ ▼ Discussions (9)
Title Replies (including bot) Last reply
general protection fault in ath6kl_usb_alloc_urb_from_pipe 1 (2) 2019/10/01 16:38
Reminder: 52 active syzbot reports in usb subsystem 4 (4) 2019/09/19 19:01
Reminder: 52 active syzbot reports in usb subsystem 1 (1) 2019/08/22 03:28
KASAN reporting bug in ath6kl 1 (1) 2019/07/29 12:58
Reminder: 11 open syzbot bugs in "net/wireless" subsystem 1 (1) 2019/07/24 01:47
Reminder: 67 open syzbot bugs in usb subsystem 1 (1) 2019/07/24 01:35
Reminder: 47 open syzbot bugs in usb subsystem 1 (1) 2019/07/09 19:01
Reminder: 12 open syzbot bugs in "net/wireless" subsystem 1 (1) 2019/06/25 05:51
Reminder: 42 open syzbot bugs in usb subsystem 1 (1) 2019/06/25 03:44

Sample crash report:
usb 1-1: config 0 has no interface number 0
usb 1-1: New USB device found, idVendor=0cf3, idProduct=9375, bcdDevice=d4.90
usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-1: config 0 descriptor??
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:__lock_acquire+0x10b0/0x3b50 kernel/locking/lockdep.c:3753
Code: 00 0f 85 5a 1e 00 00 48 81 c4 f0 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 56 1f 00 00 49 81 3e e0 58 67 88 0f 84 11 f0 ff
RSP: 0018:ffff8881d9686fa0 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: ffff8881da236000 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff0f13ce7 R11: ffffffff8789e73f R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8c6fea000 CR3: 00000001d387d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 lock_acquire+0x127/0x320 kernel/locking/lockdep.c:4412
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x32/0x50 kernel/locking/spinlock.c:159
 ath6kl_usb_alloc_urb_from_pipe+0x44/0x2b0 drivers/net/wireless/ath/ath6kl/usb.c:135
 ath6kl_usb_post_recv_transfers.constprop.0+0x22e/0x400 drivers/net/wireless/ath/ath6kl/usb.c:410
 ath6kl_usb_start_recv_pipes drivers/net/wireless/ath/ath6kl/usb.c:484 [inline]
 hif_start drivers/net/wireless/ath/ath6kl/usb.c:682 [inline]
 ath6kl_usb_power_on+0x88/0x120 drivers/net/wireless/ath/ath6kl/usb.c:1041
 ath6kl_hif_power_on drivers/net/wireless/ath/ath6kl/hif-ops.h:136 [inline]
 ath6kl_core_init+0x154/0x10b0 drivers/net/wireless/ath/ath6kl/core.c:97
 ath6kl_usb_probe+0xc7a/0x1180 drivers/net/wireless/ath/ath6kl/usb.c:1147
 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
 really_probe+0x281/0x6d0 drivers/base/dd.c:548
 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721
 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:454
 __device_attach+0x217/0x360 drivers/base/dd.c:894
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
 device_add+0xae6/0x16f0 drivers/base/core.c:2165
 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023
 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210
 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266
 really_probe+0x281/0x6d0 drivers/base/dd.c:548
 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721
 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828
 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:454
 __device_attach+0x217/0x360 drivers/base/dd.c:894
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514
 device_add+0xae6/0x16f0 drivers/base/core.c:2165
 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536
 hub_port_connect drivers/usb/core/hub.c:5098 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
 port_event drivers/usb/core/hub.c:5359 [inline]
 hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441
 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
 worker_thread+0x96/0xe20 kernel/workqueue.c:2415
 kthread+0x318/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 65cec9eebe55dcc9 ]---
RIP: 0010:__lock_acquire+0x10b0/0x3b50 kernel/locking/lockdep.c:3753
Code: 00 0f 85 5a 1e 00 00 48 81 c4 f0 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 56 1f 00 00 49 81 3e e0 58 67 88 0f 84 11 f0 ff
RSP: 0018:ffff8881d9686fa0 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000018
RBP: ffff8881da236000 R08: 0000000000000001 R09: 0000000000000001
R10: fffffbfff0f13ce7 R11: ffffffff8789e73f R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000018 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8c6fea000 CR3: 00000001d387d000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1160):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/09/07 00:00 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 acb5b744 .config console log report syz C ci2-upstream-usb
2019/08/30 19:56 https://github.com/google/kasan.git usb-fuzzer eea39f24f4a5 9adfa876 .config console log report syz C ci2-upstream-usb
2019/08/20 17:10 https://github.com/google/kasan.git usb-fuzzer eea39f24f4a5 cfc9868f .config console log report syz C ci2-upstream-usb
2019/08/09 12:15 https://github.com/google/kasan.git usb-fuzzer e96407b49762 ede31a9b .config console log report syz C ci2-upstream-usb
2019/08/07 20:02 https://github.com/google/kasan.git usb-fuzzer e96407b49762 e6ebef88 .config console log report syz C ci2-upstream-usb
2019/07/23 04:57 https://github.com/google/kasan.git usb-fuzzer 6a3599ceaa39 55e0c077 .config console log report syz C ci2-upstream-usb
2019/07/11 18:59 https://github.com/google/kasan.git usb-fuzzer 6a3599ceaa39 186a30b9 .config console log report syz C ci2-upstream-usb
2019/07/10 22:43 https://github.com/google/kasan.git usb-fuzzer 7829a896a587 ff7bf04c .config console log report syz C ci2-upstream-usb
2019/07/09 16:32 https://github.com/google/kasan.git usb-fuzzer 7829a896a587 f62e1e85 .config console log report syz C ci2-upstream-usb
2019/07/01 17:53 https://github.com/google/kasan.git usb-fuzzer 7829a896a587 907bf746 .config console log report syz C ci2-upstream-usb
2019/06/12 19:40 https://github.com/google/kasan.git usb-fuzzer 69bbe8c72e6f 794a1ad7 .config console log report syz C ci2-upstream-usb
2019/06/07 20:53 https://github.com/google/kasan.git usb-fuzzer 69bbe8c72e6f cf9c3a50 .config console log report syz C ci2-upstream-usb
2019/06/03 20:17 https://github.com/google/kasan.git usb-fuzzer 69bbe8c72e6f 63bf051f .config console log report syz C ci2-upstream-usb
2019/04/12 18:34 https://github.com/google/kasan.git usb-fuzzer 9a33b36996cb 4f421599 .config console log report syz C ci2-upstream-usb
2019/04/12 12:47 https://github.com/google/kasan.git usb-fuzzer 9a33b36996cb 8916f5e1 .config console log report syz C ci2-upstream-usb
2019/09/19 11:33 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 eb940044 .config console log report ci2-upstream-usb
2019/09/18 08:08 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 03e0d245 .config console log report ci2-upstream-usb
2019/09/17 16:53 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 13dcda9b .config console log report ci2-upstream-usb
2019/09/17 13:04 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 13dcda9b .config console log report ci2-upstream-usb
2019/09/17 07:19 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 51ca0454 .config console log report ci2-upstream-usb
2019/09/16 20:08 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 55c50e70 .config console log report ci2-upstream-usb
2019/09/16 16:36 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 55c50e70 .config console log report ci2-upstream-usb
2019/09/15 20:31 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/15 17:04 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/15 12:32 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/15 01:36 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/14 22:13 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/14 18:43 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/14 16:39 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/14 11:31 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/14 03:11 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/13 23:46 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/13 21:25 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/13 21:08 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 32d59357 .config console log report ci2-upstream-usb
2019/09/13 13:28 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 40fa42bc .config console log report ci2-upstream-usb
2019/09/12 23:16 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 0b7672ee .config console log report ci2-upstream-usb
2019/09/12 20:29 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 0b7672ee .config console log report ci2-upstream-usb
2019/09/12 02:15 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 f4e53c10 .config console log report ci2-upstream-usb
2019/09/11 22:33 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 f4e53c10 .config console log report ci2-upstream-usb
2019/09/11 17:59 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/11 12:04 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/11 08:14 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/11 05:07 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/11 02:59 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/11 01:00 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/10 22:56 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/10 20:18 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/10 16:35 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/10 09:58 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/10 07:55 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/09 21:59 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/09 19:00 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/09 15:36 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/09 04:52 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/09 00:28 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/08 16:49 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/08 13:05 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/08 06:39 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/07 22:04 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/07 20:37 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/07 18:38 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/07 11:04 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/07 07:38 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 a60cb4cd .config console log report ci2-upstream-usb
2019/09/06 23:42 https://github.com/google/kasan.git usb-fuzzer f0df5c1be1e9 acb5b744 .config console log report ci2-upstream-usb
* Struck through repros no longer work on HEAD.