------------[ cut here ]------------ GID entry ref leak for dev syz1 index 2 ref=1 WARNING: CPU: 2 PID: 1181 at drivers/infiniband/core/cache.c:806 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 2 PID: 1181 at drivers/infiniband/core/cache.c:806 gid_table_release_one+0x387/0x4b0 drivers/infiniband/core/cache.c:886 Modules linked in: CPU: 2 UID: 0 PID: 1181 Comm: kworker/u32:10 Not tainted 6.15.0-syzkaller-09161-g0f70f5b08a47 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: ib-unreg-wq ib_unregister_work RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:806 [inline] RIP: 0010:gid_table_release_one+0x387/0x4b0 drivers/infiniband/core/cache.c:886 Code: 07 00 00 48 85 f6 74 2b 48 89 74 24 38 e8 21 70 36 f9 48 8b 74 24 38 44 89 f1 44 89 ea 48 c7 c7 60 63 98 8c e8 8a d0 f5 f8 90 <0f> 0b 90 90 e9 6e fe ff ff e8 fb 6f 36 f9 48 8d bd 48 07 00 00 48 RSP: 0018:ffffc90006c57b50 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888068ac9a00 RCX: ffffffff817aba48 RDX: ffff888020f52440 RSI: ffffffff817aba55 RDI: 0000000000000001 RBP: ffff88806823c000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffed100d15935b R13: 0000000000000002 R14: 0000000000000001 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88809797b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000804a5000 CR3: 000000000e180000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ib_device_release+0xef/0x1e0 drivers/infiniband/core/device.c:482 device_release+0xa4/0x240 drivers/base/core.c:2568 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1e7/0x5a0 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3800 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245