BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
PGD 80000001bcf8d067 P4D 80000001bcf8d067 PUD 16d528067 PMD 0
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 10351 Comm: syz-executor7 Not tainted 4.19.0-rc1+ #40
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:klist_put lib/klist.c:213 [inline]
RIP: 0010:klist_del lib/klist.c:231 [inline]
RIP: 0010:klist_remove+0x24d/0x670 lib/klist.c:250
Code: 90 0f 85 67 02 00 00 49 8b 1e 4c 89 f7 e8 0b 68 cd f8 4c 8b 20 44 8b 2a 48 83 e3 fe 4c 8d 7b 20 49 83 e4 fe 0f 85 51 02 00 00 <48> 8b 43 20 48 89 45 b0 4c 89 ff e8 e3 67 cd f8 48 8b 00 48 89 85
RSP: 0018:ffff8801c1edf8b8 EFLAGS: 00010246
RAX: ffff8801c921f888 RBX: 0000000000000000 RCX: ffff8801c9220888
RDX: ffff8801c9220888 RSI: aaaaaaaaaaaab000 RDI: ffffea000ab6cb40
RBP: ffff8801c1edf968 R08: 0000000000480000 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff85c9dc30 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8801c921e888 R15: 0000000000000020
FS: 00007f2dd9981700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 00000001beea0000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__device_release_driver drivers/base/dd.c:979 [inline]
device_release_driver_internal+0xb75/0xd90 drivers/base/dd.c:999
device_release_driver+0x4b/0x60 drivers/base/dd.c:1024
usb_driver_release_interface+0x20f/0x2b0 drivers/usb/core/driver.c:604
proc_disconnect_claim drivers/usb/core/devio.c:2281 [inline]
usbdev_do_ioctl+0xad64/0xbb80 drivers/usb/core/devio.c:2523
usbdev_ioctl+0x8c/0xb0 drivers/usb/core/devio.c:2551
vfs_ioctl fs/ioctl.c:46 [inline]
do_vfs_ioctl+0xc77/0x2660 fs/ioctl.c:687
ksys_ioctl fs/ioctl.c:702 [inline]
__do_sys_ioctl fs/ioctl.c:709 [inline]
__se_sys_ioctl+0x1da/0x270 fs/ioctl.c:707
__x64_sys_ioctl+0x4a/0x70 fs/ioctl.c:707
do_syscall_64+0xb8/0x100 arch/x86/entry/common.c:291
entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457099
Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f2dd9980c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2dd99816d4 RCX: 0000000000457099
RDX: 0000000020000040 RSI: 000000008108551b RDI: 0000000000000003
RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004ce8f0 R14: 00000000004c4e0b R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
(ftrace buffer empty)
CR2: 0000000000000020
---[ end trace 740678de98745418 ]---
RIP: 0010:klist_put lib/klist.c:213 [inline]
RIP: 0010:klist_del lib/klist.c:231 [inline]
RIP: 0010:klist_remove+0x24d/0x670 lib/klist.c:250
Code: 90 0f 85 67 02 00 00 49 8b 1e 4c 89 f7 e8 0b 68 cd f8 4c 8b 20 44 8b 2a 48 83 e3 fe 4c 8d 7b 20 49 83 e4 fe 0f 85 51 02 00 00 <48> 8b 43 20 48 89 45 b0 4c 89 ff e8 e3 67 cd f8 48 8b 00 48 89 85
RSP: 0018:ffff8801c1edf8b8 EFLAGS: 00010246
RAX: ffff8801c921f888 RBX: 0000000000000000 RCX: ffff8801c9220888
RDX: ffff8801c9220888 RSI: aaaaaaaaaaaab000 RDI: ffffea000ab6cb40
RBP: ffff8801c1edf968 R08: 0000000000480000 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff85c9dc30 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8801c921e888 R15: 0000000000000020
FS: 00007f2dd9981700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 00000001beea0000 CR4: 00000000001406f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600