device team0 entered promiscuous mode device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode 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 CPU: 1 PID: 10488 Comm: syz-executor4 Not tainted 4.20.0-rc4+ #352 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 drivers/media/common/videobuf2/videobuf2-vmalloc.c:136 Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 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 72 01 00 00 RSP: 0018:ffff88817d89f638 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000de56000 RDX: 0000000000000001 RSI: ffffffff855a6449 RDI: 0000000000000009 RBP: ffff88817d89f668 R08: ffff8881d79e8040 R09: ffffed10369aaec6 R10: ffff88817d89f760 R11: ffff8881b4d57637 R12: ffffc900136c1000 R13: 0000000000000000 R14: ffff8881bd12de00 R15: ffff8881bd12de00 FS: 00007f2385328700(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 00000001b8c00000 CR4: 00000000001406e0 Call Trace: __vb2_buf_userptr_put drivers/media/common/videobuf2/videobuf2-core.c:258 [inline] __vb2_free_mem drivers/media/common/videobuf2/videobuf2-core.c:417 [inline] __vb2_queue_free+0x4b1/0xa30 drivers/media/common/videobuf2/videobuf2-core.c:458 vb2_core_queue_release+0x62/0x80 drivers/media/common/videobuf2/videobuf2-core.c:2231 vb2_queue_release+0x15/0x20 drivers/media/common/videobuf2/videobuf2-v4l2.c:837 v4l2_m2m_ctx_release+0x1e/0x35 drivers/media/v4l2-core/v4l2-mem2mem.c:930 vim2m_release+0xe6/0x150 drivers/media/platform/vim2m.c:977 v4l2_release+0x224/0x3a0 drivers/media/v4l2-core/v4l2-dev.c:456 __fput+0x385/0xa30 fs/file_table.c:278 ____fput+0x15/0x20 fs/file_table.c:309 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 get_signal+0x1558/0x1980 kernel/signal.c:2347 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x2e5/0x380 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 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 b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f2385327c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000457569 RDX: 00000000200003c0 RSI: 00000000c100565c RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f23853286d4 R13: 00000000004c18db R14: 00000000004d2e60 R15: 00000000ffffffff Modules linked in: ---[ end trace 94b6066f7de3d294 ]--- RIP: 0010:vb2_vmalloc_put_userptr+0x73/0x250 drivers/media/common/videobuf2/videobuf2-vmalloc.c:136 Code: fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 c2 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 08 48 8d 7b 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 72 01 00 00 RSP: 0018:ffff88817d89f638 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000de56000 RDX: 0000000000000001 RSI: ffffffff855a6449 RDI: 0000000000000009 RBP: ffff88817d89f668 R08: ffff8881d79e8040 R09: ffffed10369aaec6 R10: ffff88817d89f760 R11: ffff8881b4d57637 R12: ffffc900136c1000 R13: 0000000000000000 R14: ffff8881bd12de00 R15: ffff8881bd12de00 FS: 00007f2385328700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000001b8c00000 CR4: 00000000001406f0 netlink: 24 bytes leftover after parsing attributes in process `syz-executor2'.