------------[ cut here ]------------
sysfs group 'pkeys' not found for kobject '1'
WARNING: CPU: 1 PID: 21 at fs/sysfs/group.c:279 sysfs_remove_group fs/sysfs/group.c:279 [inline]
WARNING: CPU: 1 PID: 21 at fs/sysfs/group.c:279 sysfs_remove_group+0x155/0x1b0 fs/sysfs/group.c:270
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 21 Comm: kworker/u4:1 Not tainted 5.7.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 fixup_bug arch/x86/kernel/traps.c:170 [inline]
 do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:sysfs_remove_group fs/sysfs/group.c:279 [inline]
RIP: 0010:sysfs_remove_group+0x155/0x1b0 fs/sysfs/group.c:270
Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 a0 f3 39 88 e8 43 7b 5e ff <0f> 0b eb 95 e8 e2 0c cb ff e9 d2 fe ff ff 48 89 df e8 d5 0c cb ff
RSP: 0018:ffffc90000dd7ac8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff888095424b78 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815ce521 RDI: fffff520001baf4b
RBP: 0000000000000000 R08: ffff8880a97e8580 R09: ffffed1015ce66a9
R10: ffff8880ae733547 R11: ffffed1015ce66a8 R12: ffff888095424b00
R13: ffffffff88c4bd40 R14: ffff888095424b08 R15: ffffed100d5d90d4
 ib_free_port_attrs+0x257/0x4f0 drivers/infiniband/core/sysfs.c:1322
 remove_one_compat_dev+0x4a/0x70 drivers/infiniband/core/device.c:939
 rdma_dev_exit_net+0x2b9/0x4e0 drivers/infiniband/core/device.c:1077
 ops_exit_list.isra.0+0xa8/0x150 net/core/net_namespace.c:186
 cleanup_net+0x511/0xa50 net/core/net_namespace.c:603
 process_one_work+0x965/0x16a0 kernel/workqueue.c:2268
 worker_thread+0x96/0xe20 kernel/workqueue.c:2414
 kthread+0x388/0x470 kernel/kthread.c:268
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..