0 pages HighMem/MovableOnly
333804 pages reserved
0 pages cma reserved
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
Modules linked in:
CPU: 1 PID: 6903 Comm: syz-executor.0 Not tainted 4.14.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888093090240 task.stack: ffff8880982f0000
RIP: 0010:vb2_vmalloc_put_userptr+0x69/0x1e0 drivers/media/v4l2-core/videobuf2-vmalloc.c:136
RSP: 0018:ffff8880982f79f0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffc90005eb2000 RCX: ffffffff8423b2e0
RDX: 0000000000000001 RSI: ffffed10142bad4a RDI: 0000000000000009
RBP: ffff8880982f7a18 R08: ffff8880797faa80 R09: 1ffffffff0de57dc
R10: ffff8880982f7aa8 R11: ffff888093090240 R12: ffff8880797faa80
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880797faa88
FS:  00007f6da1cdd700(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 00000000a58dc000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __vb2_buf_userptr_put drivers/media/v4l2-core/videobuf2-core.c:256 [inline]
 __vb2_free_mem drivers/media/v4l2-core/videobuf2-core.c:413 [inline]
 __vb2_queue_free+0x337/0x770 drivers/media/v4l2-core/videobuf2-core.c:454
 vb2_core_queue_release+0x57/0x70 drivers/media/v4l2-core/videobuf2-core.c:2043
 vb2_queue_release+0x9/0x10 drivers/media/v4l2-core/videobuf2-v4l2.c:669
 v4l2_m2m_ctx_release+0x22/0x30 drivers/media/v4l2-core/v4l2-mem2mem.c:674
 vim2m_release+0xcd/0x120 drivers/media/platform/vim2m.c:959
 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
 task_work_run+0xe5/0x170 kernel/task_work.c:113
 get_signal+0x148c/0x1b30 kernel/signal.c:2229
 do_signal+0x7f/0x19a0 arch/x86/kernel/signal.c:814
 exit_to_usermode_loop+0x114/0x1b0 arch/x86/entry/common.c:160
 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: 0033:0x4592c9
RSP: 002b:00007f6da1cdcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: fffffffffffffff2 RBX: 0000000000000003 RCX: 00000000004592c9
RDX: 00000000200001c0 RSI: 00000000c100565c RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6da1cdd6d4
R13: 00000000004c4241 R14: 00000000004d7ee0 R15: 00000000ffffffff
Code: 4c 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 76 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 6c 24 08 49 8d 7d 09 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 07 01 00 
RIP: vb2_vmalloc_put_userptr+0x69/0x1e0 drivers/media/v4l2-core/videobuf2-vmalloc.c:136 RSP: ffff8880982f79f0
---[ end trace e1f11b215510ce45 ]---