8021q: adding VLAN 0 to HW filter on device bond0
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
Modules linked in:
8021q: adding VLAN 0 to HW filter on device batadv0
CPU: 1 PID: 6782 Comm: syz-executor.1 Not tainted 4.14.166-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888084c3a3c0 task.stack: ffff8880a0d98000
8021q: adding VLAN 0 to HW filter on device bond0
RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline]
RIP: 0010:atomic_read arch/x86/include/asm/atomic.h:27 [inline]
RIP: 0010:refcount_sub_and_test+0x1c/0x90 lib/refcount.c:179
RSP: 0018:ffff8880a0d9fbd0 EFLAGS: 00010282
8021q: adding VLAN 0 to HW filter on device bond0
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 1ffff11010987591
RDX: 0000000000000004 RSI: 0000000000000020 RDI: 0000000000000001
RBP: ffff8880a0d9fbe0 R08: ffff888084c3ac88 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880853f15c0
R13: dffffc0000000000 R14: ffff8880853f15d4 R15: 0000000000000000
FS:  000000000116f940(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000712388 CR3: 0000000099d67000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 refcount_dec_and_test+0x11/0x20 lib/refcount.c:212
 vb2_vmalloc_put+0x11/0x50 drivers/media/v4l2-core/videobuf2-vmalloc.c:68
 __vb2_buf_mem_free+0xf0/0x1c0 drivers/media/v4l2-core/videobuf2-core.c:240
 __vb2_free_mem drivers/media/v4l2-core/videobuf2-core.c:409 [inline]
 __vb2_queue_free+0x57a/0x770 drivers/media/v4l2-core/videobuf2-core.c:454
IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
 vb2_core_queue_release+0x57/0x70 drivers/media/v4l2-core/videobuf2-core.c:2043
 vb2_queue_release drivers/media/v4l2-core/videobuf2-v4l2.c:669 [inline]
 _vb2_fop_release+0x1ac/0x280 drivers/media/v4l2-core/videobuf2-v4l2.c:840
 vb2_fop_release+0x66/0xd0 drivers/media/v4l2-core/videobuf2-v4l2.c:854
 vivid_fop_release+0x15f/0x3a0 drivers/media/platform/vivid/vivid-core.c:486
 v4l2_release+0xeb/0x1a0 drivers/media/v4l2-core/v4l2-dev.c:446
 __fput+0x232/0x750 fs/file_table.c:210
 ____fput+0x9/0x10 fs/file_table.c:244
IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready
 task_work_run+0xe5/0x170 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x16a/0x1b0 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x416/0x5b0 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x412f61
IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
RSP: 002b:00007ffc89b2e5e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000412f61
RDX: 0000001b31620000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: ffffffffffffffff R09: ffffffffffffffff
R10: 00007ffc89b2e6c0 R11: 0000000000000293 R12: 0000000000760ef8
R13: 000000000000d4c1 R14: 000000000000d4ee R15: 000000000075bf2c
Code: f0 87 6e 05 00 0f 84 42 
IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
02 
IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
00 
8021q: adding VLAN 0 to HW filter on device team0
00 5d c3 66 90 48 b8 00 00 00 00 00 fc ff df 55 48 89 f2 48 89 e5 48 c1 ea 03 53 89 fb 48 83 ec 08 <0f> b6 14 02 48 89 f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3a 
RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff8880a0d9fbd0
RIP: atomic_read arch/x86/include/asm/atomic.h:27 [inline] RSP: ffff8880a0d9fbd0
RIP: refcount_sub_and_test+0x1c/0x90 lib/refcount.c:179 RSP: ffff8880a0d9fbd0
---[ end trace b5fde21a3b2497ad ]---
IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready