------------[ cut here ]------------ kernel BUG at drivers/dma-buf/dma-buf.c:99! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7273 Comm: syz-executor.0 Not tainted 5.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dma_buf_release+0x339/0x350 drivers/dma-buf/dma-buf.c:99 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c7 fd ff ff 48 89 df e8 98 cf 1f fd e9 ba fd ff ff e8 6e f1 e1 fc 0f 0b e8 67 f1 e1 fc <0f> 0b e8 60 f1 e1 fc 0f 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ffffc90001bb7df0 EFLAGS: 00010293 RAX: ffffffff84917029 RBX: 0000000000000004 RCX: ffff88808e988580 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffffffff84916cf0 R08: ffffffff84916db4 R09: ffffc90001bb7dc0 R10: fffff52000376fbc R11: 0000000000000000 R12: ffff888097a6c000 R13: dffffc0000000000 R14: ffff8880a89b34f0 R15: 1ffff1101513666d FS: 0000000000f72940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe1b3ba697 CR3: 000000009f24b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __fput+0x2ed/0x750 fs/file_table.c:280 task_work_run+0x147/0x1d0 kernel/task_work.c:123 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:165 [inline] prepare_exit_to_usermode+0x48e/0x600 arch/x86/entry/common.c:196 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x416421 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe53ef7330 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000416421 RDX: 0000000000000000 RSI: 0000000000000081 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000007908c0 R11: 0000000000000293 R12: 00000000007908d0 R13: 0000000000000000 R14: ffffffffffffffff R15: 000000000078bf0c Modules linked in: ---[ end trace 0c565ee7dd19f2e6 ]--- RIP: 0010:dma_buf_release+0x339/0x350 drivers/dma-buf/dma-buf.c:99 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c c7 fd ff ff 48 89 df e8 98 cf 1f fd e9 ba fd ff ff e8 6e f1 e1 fc 0f 0b e8 67 f1 e1 fc <0f> 0b e8 60 f1 e1 fc 0f 0b 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ffffc90001bb7df0 EFLAGS: 00010293 RAX: ffffffff84917029 RBX: 0000000000000004 RCX: ffff88808e988580 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: ffffffff84916cf0 R08: ffffffff84916db4 R09: ffffc90001bb7dc0 R10: fffff52000376fbc R11: 0000000000000000 R12: ffff888097a6c000 R13: dffffc0000000000 R14: ffff8880a89b34f0 R15: 1ffff1101513666d FS: 0000000000f72940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe1b3ba697 CR3: 000000009f24b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400