------------[ cut here ]------------ GID entry ref leak for dev syz1 index 2 ref=1 WARNING: CPU: 0 PID: 5101 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 0 PID: 5101 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x30f/0x490 drivers/infiniband/core/cache.c:886 Modules linked in: CPU: 0 PID: 5101 Comm: kworker/u4:9 Not tainted 5.15.185-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: events_unbound ib_unregister_work RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:806 [inline] RIP: 0010:gid_table_release_one+0x30f/0x490 drivers/infiniband/core/cache.c:886 Code: 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 3c 41 8b 0e 48 c7 c7 c0 a6 e2 8a 48 8b 74 24 20 44 89 fa e8 e1 4a 7a 02 <0f> 0b e9 14 ff ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 1a ff RSP: 0018:ffffc9000342fae8 EFLAGS: 00010246 RAX: d35e4b09b3f5ec00 RBX: ffff8880538226d8 RCX: ffff88801d8a9dc0 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff1100a7044c0 R08: dffffc0000000000 R09: ffffed10172067a8 R10: ffffed10172067a8 R11: 1ffff110172067a7 R12: 1ffff1100a7044db R13: ffff888053822600 R14: ffff8880536b6500 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f25d910d178 CR3: 000000006530a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ib_device_release+0xce/0x1b0 drivers/infiniband/core/device.c:497 device_release+0x92/0x1c0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:713 [inline] kobject_release lib/kobject.c:744 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x21d/0x460 lib/kobject.c:761 process_one_work+0x863/0x1000 kernel/workqueue.c:2310 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287