syzbot


general protection fault in smsusb_init_device

Status: fixed on 2019/06/20 05:27
Reported-by: syzbot+53f029db71c19a47325a@syzkaller.appspotmail.com
Fix commit: 31e0456de5be media: usb: siano: Fix general protection fault in smsusb
First crash: 1219d, last: 1179d
Patch testing requests:
Created Duration User Patch Repo Result
2019/05/06 20:41 38m stern@rowland.harvard.edu patch https://github.com/google/kasan.git usb-fuzzer OK

Sample crash report:
usb 1-1: config 0 descriptor??
usb 1-1: string descriptor 0 read error: -71
smsusb:smsusb_probe: board id=18, interface number 0
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 PTI
CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.1.0-rc5-319617-gd34f951 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:smsusb_init_device+0x366/0x937 drivers/media/usb/siano/smsusb.c:429
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 24 1e 66 f7 4d 8b b6 f0 04 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7e 04 48 89 fa 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 ff c0 38 d0 7c 09 84 d2 74 05 e8 b1 1d
RSP: 0018:ffff8880a86570d0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: ffff88809a81b300 RCX: ffffffff8a42b5b3
RDX: 0000000000000000 RSI: ffffffff8a42b6a3 RDI: 0000000000000004
RBP: ffff88808ca70000 R08: ffff8880a8503100 R09: ffff8880a8657130
R10: ffffed10150cae34 R11: ffff8880a86571a7 R12: ffff88809a81be54
R13: ffff88809a81be5c R14: 0000000000000000 R15: ffff88808ca70000
FS:  0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ad259d000 CR3: 000000009a3aa000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 smsusb_probe+0xd64/0xe08 drivers/media/usb/siano/smsusb.c:570
 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021
 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266
 really_probe+0x2da/0xb10 drivers/base/dd.c:509
 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x223/0x3a0 drivers/base/dd.c:844
 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514
 device_add+0xad2/0x16e0 drivers/base/core.c:2106
 usb_new_device.cold+0x537/0xccf 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+0x1398/0x3b00 drivers/usb/core/hub.c:5432
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x313/0x420 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 6175778b99b10882 ]---
RIP: 0010:smsusb_init_device+0x366/0x937 drivers/media/usb/siano/smsusb.c:429
Code: 48 c1 ea 03 80 3c 02 00 74 05 e8 24 1e 66 f7 4d 8b b6 f0 04 00 00 b8 ff ff 37 00 48 c1 e0 2a 49 8d 7e 04 48 89 fa 48 c1 ea 03 <8a> 14 02 48 89 f8 83 e0 07 ff c0 38 d0 7c 09 84 d2 74 05 e8 b1 1d
RSP: 0018:ffff8880a86570d0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: ffff88809a81b300 RCX: ffffffff8a42b5b3
RDX: 0000000000000000 RSI: ffffffff8a42b6a3 RDI: 0000000000000004
RBP: ffff88808ca70000 R08: ffff8880a8503100 R09: ffff8880a8657130
R10: ffffed10150cae34 R11: ffff8880a86571a7 R12: ffff88809a81be54
R13: ffff88809a81be5c R14: 0000000000000000 R15: ffff88808ca70000
FS:  0000000000000000(0000) GS:ffff8880ad100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1ad259d000 CR3: 000000009a3aa000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (23):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-usb 2019/04/18 01:55 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report syz C
ci2-upstream-usb 2019/05/27 07:20 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 85c57315 .config log report
ci2-upstream-usb 2019/05/21 23:17 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 13427bd9 .config log report
ci2-upstream-usb 2019/05/21 10:31 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 8285069f .config log report
ci2-upstream-usb 2019/05/21 05:12 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 8285069f .config log report
ci2-upstream-usb 2019/05/18 11:29 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 5a4461b0 .config log report
ci2-upstream-usb 2019/05/13 00:29 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 5f302c04 .config log report
ci2-upstream-usb 2019/05/10 17:19 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 46caad94 .config log report
ci2-upstream-usb 2019/05/10 12:33 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 018207ef .config log report
ci2-upstream-usb 2019/05/02 17:31 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 1852eb18 .config log report
ci2-upstream-usb 2019/05/02 16:01 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce 1852eb18 .config log report
ci2-upstream-usb 2019/04/26 16:53 https://github.com/google/kasan.git usb-fuzzer 43151d6c3fce b617407b .config log report
ci2-upstream-usb 2019/04/24 13:30 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa 8e3c52b1 .config log report
ci2-upstream-usb 2019/04/23 21:19 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa 2398edea .config log report
ci2-upstream-usb 2019/04/23 17:10 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa 2398edea .config log report
ci2-upstream-usb 2019/04/23 14:32 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa 2398edea .config log report
ci2-upstream-usb 2019/04/22 05:28 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report
ci2-upstream-usb 2019/04/21 23:30 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report
ci2-upstream-usb 2019/04/21 19:30 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report
ci2-upstream-usb 2019/04/21 14:51 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report
ci2-upstream-usb 2019/04/19 20:08 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report
ci2-upstream-usb 2019/04/18 14:09 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report
ci2-upstream-usb 2019/04/18 07:21 https://github.com/google/kasan.git usb-fuzzer d34f9519daaa b0e8efcb .config log report