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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: 0 PID: 28928 Comm: syz-executor.5 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888059e96080 task.stack: ffff888050b88000
RIP: 0010:dma_buf_release+0x313/0x5c0 drivers/dma-buf/dma-buf.c:68
RSP: 0018:ffff888050b8fdc0 EFLAGS: 00010297
RAX: ffff888059e96080 RBX: ffff8880558fb540 RCX: 1ffffffff14cb66c
RDX: 0000000000000000 RSI: ffff8880558fb540 RDI: ffff88808132e5f8
RBP: ffff88808132e480 R08: 0000000000000001 R09: 0000000000000000
R10: ffff888059e96900 R11: ffff888059e96080 R12: ffff8880558fb568
R13: ffff8880558fb5bc R14: ffffffff83a4f7b0 R15: ffff8880558fb550
FS:  0000000000ff2940(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000076c000 CR3: 000000003967c000 CR4: 00000000001426f0
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: 0033:0x4163e1
RSP: 002b:00007ffdd44b2b00 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 00000000004163e1
RDX: 0000000000000000 RSI: 0000000000000081 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000000 R09: 01ffffffffffffff
R10: 00000000007708c0 R11: 0000000000000293 R12: 000000000076bf00
R13: 00000000007708d0 R14: 0000000000000000 R15: 000000000076bf0c
Code: 31 e4 e8 81 eb ac fd 48 89 ef e8 49 77 de fd e8 d4 4c b5 fd 44 89 e0 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 bd 4c b5 fd <0f> 0b e8 b6 4c b5 fd e8 21 f8 a5 fd 48 8d bd 38 02 00 00 48 b8 
RIP: dma_buf_release+0x313/0x5c0 drivers/dma-buf/dma-buf.c:68 RSP: ffff888050b8fdc0
---[ end trace 39e3b692780c3a16 ]---