------------[ cut here ]------------ sysfs group 'types' not found for kobject 'gid_attrs' WARNING: CPU: 0 PID: 15311 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279 Modules linked in: CPU: 0 PID: 15311 Comm: kworker/u4:3 Not tainted 5.10.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound ib_unregister_work RIP: 0010:sysfs_remove_group+0x126/0x170 fs/sysfs/group.c:279 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 37 48 8b 33 48 c7 c7 a0 98 5b 89 e8 96 d6 c8 06 <0f> 0b eb 98 e8 d1 19 ca ff e9 01 ff ff ff 48 89 df e8 c4 19 ca ff RSP: 0018:ffffc90001adfc50 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888013b38770 RCX: 0000000000000000 RDX: ffff888023bab480 RSI: ffffffff8158ca25 RDI: fffff5200035bf7c RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9e30627 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888013b38708 R13: ffffffff8a247aa0 R14: 0000000000000000 R15: ffff88801c242fa8 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc2c770ff8 CR3: 00000000245cf000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ib_free_port_attrs+0x363/0x5b0 drivers/infiniband/core/sysfs.c:1346 __ib_unregister_device+0xa1/0x1a0 drivers/infiniband/core/device.c:1434 ib_unregister_work+0x15/0x30 drivers/infiniband/core/device.c:1540 process_one_work+0x933/0x15a0 kernel/workqueue.c:2272 worker_thread+0x64c/0x1120 kernel/workqueue.c:2418 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296