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kernel BUG at drivers/dma-buf/dma-buf.c:68!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 19448 Comm: syz-executor.1 Not tainted 4.14.172-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88805976e3c0 task.stack: ffff888207010000
RIP: 0010:dma_buf_release+0x313/0x5c0 drivers/dma-buf/dma-buf.c:68
RSP: 0018:ffff888207017dc0 EFLAGS: 00010297
RAX: ffff88805976e3c0 RBX: ffff888094b5c780 RCX: 1ffffffff14cb674
RDX: 0000000000000000 RSI: ffff888094b5c780 RDI: ffff888090c62178
RBP: ffff888090c62000 R08: 0000000000000001 R09: 0000000000000000
R10: ffff88805976ec40 R11: ffff88805976e3c0 R12: ffff888094b5c7a8
R13: ffff888094b5c7fc R14: ffffffff83a4c360 R15: ffff888094b5c790
FS:  0000000001f11940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2936fdcd90 CR3: 00000001fffbd000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __fput+0x25f/0x790 fs/file_table.c:210
 task_work_run+0x113/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1d6/0x220 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+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x416011
RSP: 002b:00007fff8b511200 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000009 RCX: 0000000000416011
RDX: 0000000000000000 RSI: 0000000000000081 RDI: 0000000000000008
RBP: 0000000000000000 R08: 0000000000000000 R09: 01ffffffffffffff
R10: 0000000000770938 R11: 0000000000000293 R12: 000000000076bf20
R13: 0000000000770948 R14: 0000000000000000 R15: 000000000076bf2c
Code: 31 e4 e8 61 1f ad fd 48 89 ef e8 49 a9 de fd e8 d4 7e b5 fd 44 89 e0 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 bd 7e b5 fd <0f> 0b e8 b6 7e b5 fd e8 01 2c a6 fd 48 8d bd 38 02 00 00 48 b8 
RIP: dma_buf_release+0x313/0x5c0 drivers/dma-buf/dma-buf.c:68 RSP: ffff888207017dc0
---[ end trace 45abceed5fdae7ce ]---