Warning: Permanently added '10.128.1.122' (ECDSA) to the list of known hosts.
syzkaller login: [   34.587658] IPVS: ftp: loaded support on port[0] = 21
executing program
[   34.656934] ------------[ cut here ]------------
[   34.661703] kernel BUG at drivers/dma-buf/dma-buf.c:68!
[   34.667572] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   34.672937] CPU: 0 PID: 8105 Comm: syz-executor297 Not tainted 4.19.211-syzkaller #0
[   34.680792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   34.690134] RIP: 0010:dma_buf_release+0x345/0x630
[   34.694968] Code: e4 e8 9f 29 52 fd 48 89 ef e8 e7 3a 91 fd e8 42 8c 5b fd 44 89 e0 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 2b 8c 5b fd <0f> 0b e8 24 8c 5b fd e8 9f a4 49 fd 48 8d bd 38 02 00 00 48 b8 00
[   34.713845] RSP: 0018:ffff888095287df0 EFLAGS: 00010293
[   34.719186] RAX: ffff8880b148e280 RBX: 0000000000000004 RCX: ffffffff8406f6ec
[   34.726440] RDX: 0000000000000000 RSI: ffffffff8406f945 RDI: 0000000000000005
[   34.733685] RBP: ffff8880b258d6c0 R08: 0000000000000000 R09: 0000000000000000
[   34.740935] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b40cbafc
[   34.748186] R13: ffff8880b40cbaa8 R14: ffffffff8406f600 R15: ffff8880b5b84820
[   34.755453] FS:  0000555556532300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
[   34.763661] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.769529] CR2: 00007f43ac2cc6c0 CR3: 00000000aa8f0000 CR4: 00000000003406f0
[   34.776784] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.784044] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.791292] Call Trace:
[   34.793864]  ? ima_file_free+0xb6/0x460
[   34.797821]  ? dma_buf_detach+0x240/0x240
[   34.801947]  __fput+0x2ce/0x890
[   34.805208]  task_work_run+0x148/0x1c0
[   34.809076]  exit_to_usermode_loop+0x251/0x2a0
[   34.813635]  do_syscall_64+0x538/0x620
[   34.817503]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   34.822671] RIP: 0033:0x7f509e1105a3
[   34.826379] Code: c7 c2 c0 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb ba 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8
[   34.845258] RSP: 002b:00007ffc7505af08 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[   34.852956] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f509e1105a3
[   34.860205] RDX: 0000000020000000 RSI: 00000000c00464b4 RDI: 0000000000000003
[   34.867452] RBP: 00007ffc7505af18 R08: 00007f509e1bfe40 R09: 00007f509e1bfe40
[   34.874697] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc7505af20
[   34.881943] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[   34.889195] Modules linked in:
[   34.892863] ---[ end trace 51a4d24e0ad6d90f ]---
[   34.897639] RIP: 0010:dma_buf_release+0x345/0x630
[   34.902547] Code: e4 e8 9f 29 52 fd 48 89 ef e8 e7 3a 91 fd e8 42 8c 5b fd 44 89 e0 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 2b 8c 5b fd <0f> 0b e8 24 8c 5b fd e8 9f a4 49 fd 48 8d bd 38 02 00 00 48 b8 00
[   34.921662] RSP: 0018:ffff888095287df0 EFLAGS: 00010293
[   34.927009] RAX: ffff8880b148e280 RBX: 0000000000000004 RCX: ffffffff8406f6ec
[   34.934316] RDX: 0000000000000000 RSI: ffffffff8406f945 RDI: 0000000000000005
[   34.941641] RBP: ffff8880b258d6c0 R08: 0000000000000000 R09: 0000000000000000
[   34.948950] R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880b40cbafc
[   34.956263] R13: ffff8880b40cbaa8 R14: ffffffff8406f600 R15: ffff8880b5b84820
[   34.963663] FS:  0000555556532300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
[   34.971941] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.977817] CR2: 00007f43ac2cc6c0 CR3: 00000000aa8f0000 CR4: 00000000003406f0
[   34.985144] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.992476] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.999739] Kernel panic - not syncing: Fatal exception
[   35.005320] Kernel Offset: disabled
[   35.008935] Rebooting in 86400 seconds..