Extracting prog: 1m15.22117682s
Minimizing prog: 3m44.835860066s
Simplifying prog options: 0s
Extracting C: 26.437146272s
Simplifying C: 4m2.199586068s
extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0, 0x24f})
syz_usb_ep_read(r0, 0x1, 0x73, &(0x7f0000000040)=""/115)
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=34.346322988s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0, 0x24f})
program did not crash
testing program (duration=34.346322988s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_ep_read
detailed listing:
executing program 0:
syz_usb_ep_read(0xffffffffffffffff, 0x1, 0x73, &(0x7f0000000040)=""/115)
program did not crash
testing program (duration=34.346322988s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x0, 0x0, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0})
syz_usb_ep_read(r0, 0x1, 0x73, &(0x7f0000000040)=""/115)
program did not crash
testing program (duration=34.346322988s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, 0x0)
syz_usb_ep_read(r0, 0x1, 0x73, &(0x7f0000000040)=""/115)
program did not crash
testing program (duration=34.346322988s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0, 0x24f})
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=34.346322988s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
simplifying C reproducer
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing compiled C program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
testing program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0, 0x24f})
syz_usb_ep_read(r0, 0x1, 0x73, &(0x7f0000000040)=""/115)
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
validation run: crashed=true
testing program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0, 0x24f})
syz_usb_ep_read(r0, 0x1, 0x73, &(0x7f0000000040)=""/115)
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
validation run: crashed=true
testing program (duration=34.346322988s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x2d, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xb3, 0xb8, 0xd4, 0x40, 0x11ba, 0x1001, 0xec57, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x1, 0x19, 0xb0, 0x13, [{{0x9, 0x4, 0x4e, 0x3, 0x1, 0x4d, 0x6b, 0xe7, 0xca, [], [{{0x9, 0x5, 0x1, 0x2, 0x8, 0x7, 0x7, 0x2}}]}}]}}]}}, &(0x7f0000000940)={0x0, 0x0, 0x0, 0x0, 0x24f})
syz_usb_ep_read(r0, 0x1, 0x73, &(0x7f0000000040)=""/115)
program crashed: WARNING in pvr2_send_request_ex/usb_submit_urb
validation run: crashed=true
reproducing took 11m16.498378144s
repro crashed as (corrupted=false):
pvrusb2: Invalid read control endpoint
------------[ cut here ]------------
URB ffff88802a666200 submitted while active
WARNING: drivers/usb/core/urb.c:380 at usb_submit_urb+0x15fa/0x1910 drivers/usb/core/urb.c:380, CPU#1: pvrusb2-context/2489
Modules linked in:
CPU: 1 UID: 0 PID: 2489 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:usb_submit_urb+0x15fd/0x1910 drivers/usb/core/urb.c:380
Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 73 ff ff ff bb ed ff ff ff e9 be f2 ff ff e8 4d d8 b8 fa 48 8d 3d 56 54 96 09 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 a0 f2 ff ff c7 44 24 30 00 00 00
RSP: 0018:ffffc9000e05ed68 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802a666200 RCX: ffffffff8828bb41
RDX: ffff88802f890000 RSI: ffff88802a666200 RDI: ffffffff90e616d0
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000c0008200 R14: ffff8880381b4000 R15: ffff888038775628
FS: 0000000000000000(0000) GS:ffff8880d644a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84638436d4 CR3: 0000000033d32000 CR4: 0000000000352ef0
Call Trace:
pvr2_send_request_ex+0x7ed/0x1ea0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3676
pvr2_send_request+0x3a/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3824
pvr2_i2c_read+0x20c/0x670 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:130
pvr2_i2c_basic_op+0xa4/0x100 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:172
pvr2_i2c_xfer+0x380/0xb50 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:445
__i2c_transfer+0x5d9/0x17f0 drivers/i2c/i2c-core-base.c:2261
i2c_smbus_xfer_emulated+0x22a/0x10e0 drivers/i2c/i2c-core-smbus.c:470
__i2c_smbus_xfer+0x5b7/0x1080 drivers/i2c/i2c-core-smbus.c:608
i2c_smbus_xfer+0x185/0x3c0 drivers/i2c/i2c-core-smbus.c:546
i2c_smbus_read_byte_data+0x135/0x1e0 drivers/i2c/i2c-core-smbus.c:143
saa711x_detect_chip drivers/media/i2c/saa7115.c:1710 [inline]
saa711x_probe+0x1e1/0x870 drivers/media/i2c/saa7115.c:1816
i2c_device_probe+0x658/0xd10 drivers/i2c/i2c-core-base.c:592
call_driver_probe drivers/base/dd.c:583 [inline]
really_probe+0x241/0xa60 drivers/base/dd.c:661
__driver_probe_device+0x1de/0x400 drivers/base/dd.c:803
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:833
__device_attach_driver+0x1ff/0x3e0 drivers/base/dd.c:961
bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
__device_attach+0x1e4/0x4d0 drivers/base/dd.c:1033
device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1088
bus_probe_device+0x64/0x160 drivers/base/bus.c:574
device_add+0x11d9/0x1950 drivers/base/core.c:3689
i2c_new_client_device+0x660/0xd30 drivers/i2c/i2c-core-base.c:1019
v4l2_i2c_new_subdev_board+0xb6/0x2b0 drivers/media/v4l2-core/v4l2-i2c.c:81
v4l2_i2c_new_subdev+0x13e/0x190 drivers/media/v4l2-core/v4l2-i2c.c:136
pvr2_hdw_load_subdev drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2022 [inline]
pvr2_hdw_load_modules drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2074 [inline]
pvr2_hdw_setup_low drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2155 [inline]
pvr2_hdw_setup drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2261 [inline]
pvr2_hdw_initialize+0x2158/0x3710 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
pvr2_context_thread_func+0x253/0x920 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 00 48 8b add %cl,-0x75(%rax)
3: 04 24 add $0x24,%al
5: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx
c: e9 73 ff ff ff jmp 0xffffff84
11: bb ed ff ff ff mov $0xffffffed,%ebx
16: e9 be f2 ff ff jmp 0xfffff2d9
1b: e8 4d d8 b8 fa call 0xfab8d86d
20: 48 8d 3d 56 54 96 09 lea 0x9965456(%rip),%rdi # 0x996547d
27: 48 89 de mov %rbx,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: bb f0 ff ff ff mov $0xfffffff0,%ebx
34: e9 a0 f2 ff ff jmp 0xfffff2d9
39: c7 .byte 0xc7
3a: 44 24 30 rex.R and $0x30,%al
3d: 00 00 add %al,(%rax)
final repro crashed as (corrupted=false):
pvrusb2: Invalid read control endpoint
------------[ cut here ]------------
URB ffff88802a666200 submitted while active
WARNING: drivers/usb/core/urb.c:380 at usb_submit_urb+0x15fa/0x1910 drivers/usb/core/urb.c:380, CPU#1: pvrusb2-context/2489
Modules linked in:
CPU: 1 UID: 0 PID: 2489 Comm: pvrusb2-context Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:usb_submit_urb+0x15fd/0x1910 drivers/usb/core/urb.c:380
Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 73 ff ff ff bb ed ff ff ff e9 be f2 ff ff e8 4d d8 b8 fa 48 8d 3d 56 54 96 09 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 a0 f2 ff ff c7 44 24 30 00 00 00
RSP: 0018:ffffc9000e05ed68 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88802a666200 RCX: ffffffff8828bb41
RDX: ffff88802f890000 RSI: ffff88802a666200 RDI: ffffffff90e616d0
RBP: 0000000000000005 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 00000000c0008200 R14: ffff8880381b4000 R15: ffff888038775628
FS: 0000000000000000(0000) GS:ffff8880d644a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84638436d4 CR3: 0000000033d32000 CR4: 0000000000352ef0
Call Trace:
pvr2_send_request_ex+0x7ed/0x1ea0 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3676
pvr2_send_request+0x3a/0x50 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:3824
pvr2_i2c_read+0x20c/0x670 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:130
pvr2_i2c_basic_op+0xa4/0x100 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:172
pvr2_i2c_xfer+0x380/0xb50 drivers/media/usb/pvrusb2/pvrusb2-i2c-core.c:445
__i2c_transfer+0x5d9/0x17f0 drivers/i2c/i2c-core-base.c:2261
i2c_smbus_xfer_emulated+0x22a/0x10e0 drivers/i2c/i2c-core-smbus.c:470
__i2c_smbus_xfer+0x5b7/0x1080 drivers/i2c/i2c-core-smbus.c:608
i2c_smbus_xfer+0x185/0x3c0 drivers/i2c/i2c-core-smbus.c:546
i2c_smbus_read_byte_data+0x135/0x1e0 drivers/i2c/i2c-core-smbus.c:143
saa711x_detect_chip drivers/media/i2c/saa7115.c:1710 [inline]
saa711x_probe+0x1e1/0x870 drivers/media/i2c/saa7115.c:1816
i2c_device_probe+0x658/0xd10 drivers/i2c/i2c-core-base.c:592
call_driver_probe drivers/base/dd.c:583 [inline]
really_probe+0x241/0xa60 drivers/base/dd.c:661
__driver_probe_device+0x1de/0x400 drivers/base/dd.c:803
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:833
__device_attach_driver+0x1ff/0x3e0 drivers/base/dd.c:961
bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
__device_attach+0x1e4/0x4d0 drivers/base/dd.c:1033
device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1088
bus_probe_device+0x64/0x160 drivers/base/bus.c:574
device_add+0x11d9/0x1950 drivers/base/core.c:3689
i2c_new_client_device+0x660/0xd30 drivers/i2c/i2c-core-base.c:1019
v4l2_i2c_new_subdev_board+0xb6/0x2b0 drivers/media/v4l2-core/v4l2-i2c.c:81
v4l2_i2c_new_subdev+0x13e/0x190 drivers/media/v4l2-core/v4l2-i2c.c:136
pvr2_hdw_load_subdev drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2022 [inline]
pvr2_hdw_load_modules drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2074 [inline]
pvr2_hdw_setup_low drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2155 [inline]
pvr2_hdw_setup drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2261 [inline]
pvr2_hdw_initialize+0x2158/0x3710 drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2338
pvr2_context_check drivers/media/usb/pvrusb2/pvrusb2-context.c:111 [inline]
pvr2_context_thread_func+0x253/0x920 drivers/media/usb/pvrusb2/pvrusb2-context.c:158
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
----------------
Code disassembly (best guess):
0: 00 48 8b add %cl,-0x75(%rax)
3: 04 24 add $0x24,%al
5: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx
c: e9 73 ff ff ff jmp 0xffffff84
11: bb ed ff ff ff mov $0xffffffed,%ebx
16: e9 be f2 ff ff jmp 0xfffff2d9
1b: e8 4d d8 b8 fa call 0xfab8d86d
20: 48 8d 3d 56 54 96 09 lea 0x9965456(%rip),%rdi # 0x996547d
27: 48 89 de mov %rbx,%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: bb f0 ff ff ff mov $0xfffffff0,%ebx
34: e9 a0 f2 ff ff jmp 0xfffff2d9
39: c7 .byte 0xc7
3a: 44 24 30 rex.R and $0x30,%al
3d: 00 00 add %al,(%rax)