Node 0 DMA32 free:513104kB min:35996kB low:44992kB high:53988kB active_anon:884252kB inactive_anon:39140kB active_file:86092kB inactive_file:241376kB unevictable:4096kB writepending:1484kB present:3129332kB managed:2763492kB mlocked:4096kB kernel_stack:15744kB pagetables:25692kB bounce:0kB free_pcp:2400kB local_pcp:1520kB free_cma:0kB
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock))
WARNING: CPU: 1 PID: 32233 at kernel/locking/mutex-debug.c:103 mutex_destroy+0xec/0x130 kernel/locking/mutex-debug.c:103
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 32233 Comm: syz-executor.5 Not tainted 4.19.176-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
lowmem_reserve[]: 0 0 1 1 1
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
Node 0 Normal free:28kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:mutex_destroy+0xec/0x130 kernel/locking/mutex-debug.c:103
Code: 11 38 d0 7c 04 84 d2 75 50 8b 05 1f 2d ec 0b 85 c0 0f 85 63 ff ff ff 48 c7 c6 c0 0f 6a 88 48 c7 c7 00 10 6a 88 e8 d9 7e a5 06 <0f> 0b e9 49 ff ff ff 48 c7 c7 60 b7 23 8d e8 e1 c9 4d 00 e9 2e ff
RSP: 0018:ffff888091bb7de0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888066935840 RCX: 0000000000000000
RDX: 0000000000008321 RSI: ffffffff814de301 RDI: ffffed1012376fae
RBP: ffff8880669356c0 R08: 0000000000000000 R09: 0000000000002c5c
R10: 0000000000000006 R11: ffffffff8c65d05b R12: 0000000000000000
R13: ffff888066935840 R14: ffffffff8dcb0380 R15: ffff88823b298c20
 ww_mutex_destroy include/linux/ww_mutex.h:358 [inline]
 reservation_object_fini include/linux/reservation.h:129 [inline]
 dma_buf_release+0x531/0x630 drivers/dma-buf/dma-buf.c:77
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466019
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5992fd5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 000000000056c008 RCX: 0000000000466019
RDX: 0000000020000000 RSI: 00000000c00464b4 RDI: 0000000000000004
RBP: 00000000004bd067 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007fffb3f0220f R14: 00007f5992fd5300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..