kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 1 PID: 1107 Comm: kworker/1:7 Not tainted 4.15.0-rc7+ #192
netlink: 'syz-executor7': attribute type 153 has an invalid length.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events bpf_map_free_deferred
RIP: 0010:css_put include/linux/cgroup.h:386 [inline]
RIP: 0010:cgroup_put include/linux/cgroup.h:415 [inline]
RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 kernel/bpf/arraymap.c:573
RSP: 0018:ffff8801c4cd7490 EFLAGS: 00010a06
RAX: 1970004280000695 RBX: 1ffff1003899ae92 RCX: ffffffff8181cd95
RDX: 0000000000000000 RSI: ffff8801c69995e4 RDI: cb800214000034aa
RBP: ffff8801c4cd7518 R08: 1ffff1003899ae70 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: cb8002140000343e
R13: ffff8801c4cd74f0 R14: dffffc0000000000 R15: cb8002140000343e
FS:  0000000000000000(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020a9a000 CR3: 0000000006822006 CR4: 00000000001606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fd_array_map_delete_elem kernel/bpf/arraymap.c:420 [inline]
 bpf_fd_array_map_clear kernel/bpf/arraymap.c:461 [inline]
 cgroup_fd_array_free+0xd2/0x150 kernel/bpf/arraymap.c:578
 bpf_map_free_deferred+0xb0/0xe0 kernel/bpf/syscall.c:217
 process_one_work+0xbbf/0x1b10 kernel/workqueue.c:2112
 worker_thread+0x223/0x1990 kernel/workqueue.c:2246
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524
Code: 45 88 30 cd 81 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 6b 50 ee ff 49 8d 7c 24 6c 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 
RIP: css_put include/linux/cgroup.h:386 [inline] RSP: ffff8801c4cd7490
RIP: cgroup_put include/linux/cgroup.h:415 [inline] RSP: ffff8801c4cd7490
RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 kernel/bpf/arraymap.c:573 RSP: ffff8801c4cd7490
general protection fault: 0000 [#2] SMP KASAN
---[ end trace 6886295a7743caa8 ]---
Kernel panic - not syncing: Fatal exception
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 3 Comm: kworker/0:0 Tainted: G      D          4.15.0-rc7+ #192
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events bpf_map_free_deferred
RIP: 0010:css_put include/linux/cgroup.h:386 [inline]
RIP: 0010:cgroup_put include/linux/cgroup.h:415 [inline]
RIP: 0010:cgroup_fd_array_put_ptr+0x71/0x2a0 kernel/bpf/arraymap.c:573
RSP: 0018:ffff8801d9f0f490 EFLAGS: 00010a03
RAX: 1970004280000694 RBX: 1ffff1003b3e1e92 RCX: ffffffff8181cd95
RDX: 0000000000000000 RSI: ffff8801d0ad7024 RDI: cb800214000034a4
RBP: ffff8801d9f0f518 R08: ffff8801d9f0f258 R09: ffff8801d9efe0c0
R10: 00000000b2b9f897 R11: 0000000029c2cfef R12: cb80021400003438
R13: ffff8801d9f0f4f0 R14: dffffc0000000000 R15: cb80021400003438
FS:  0000000000000000(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071c000 CR3: 0000000006822002 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 fd_array_map_delete_elem kernel/bpf/arraymap.c:420 [inline]
 bpf_fd_array_map_clear kernel/bpf/arraymap.c:461 [inline]
 cgroup_fd_array_free+0xd2/0x150 kernel/bpf/arraymap.c:578
 bpf_map_free_deferred+0xb0/0xe0 kernel/bpf/syscall.c:217
 process_one_work+0xbbf/0x1b10 kernel/workqueue.c:2112
 worker_thread+0x223/0x1990 kernel/workqueue.c:2246
 kthread+0x33c/0x400 kernel/kthread.c:238
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:524
Code: 45 88 30 cd 81 81 c7 00 f1 f1 f1 f1 c7 40 04 00 f2 f2 f2 c7 40 08 f3 f3 f3 f3 e8 6b 50 ee ff 49 8d 7c 24 6c 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 
RIP: css_put include/linux/cgroup.h:386 [inline] RSP: ffff8801d9f0f490
RIP: cgroup_put include/linux/cgroup.h:415 [inline] RSP: ffff8801d9f0f490
RIP: cgroup_fd_array_put_ptr+0x71/0x2a0 kernel/bpf/arraymap.c:573 RSP: ffff8801d9f0f490
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..