------------[ cut here ]------------ GID entry ref leak for dev syz1 index 2 ref=381, state: 3 WARNING: CPU: 0 PID: 3018 at drivers/infiniband/core/cache.c:829 release_gid_table drivers/infiniband/core/cache.c:826 [inline] WARNING: CPU: 0 PID: 3018 at drivers/infiniband/core/cache.c:829 gid_table_release_one+0x64c/0x780 drivers/infiniband/core/cache.c:908 Modules linked in: CPU: 0 UID: 0 PID: 3018 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: ib-unreg-wq ib_unregister_work RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:826 [inline] RIP: 0010:gid_table_release_one+0x64c/0x780 drivers/infiniband/core/cache.c:908 Code: e8 03 0f b6 04 28 84 c0 0f 85 f1 00 00 00 44 8b 03 48 c7 c7 00 7d 2b 8c 48 8b 74 24 28 44 89 fa 8b 4c 24 50 e8 05 e5 35 f9 90 <0f> 0b 90 90 44 8b 74 24 0c 4c 8b 64 24 48 48 8b 1c 24 e9 1a fe ff RSP: 0018:ffffc9000bf478f0 EFLAGS: 00010246 RAX: eb4f68ae1be28b00 RBX: ffff888028b86a90 RCX: ffff88802e945ac0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1b7a680 R12: ffff8880746374d8 R13: 00000000000001a8 R14: ffff888054220010 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff88812636a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1cff997f98 CR3: 000000007478c000 CR4: 00000000003526f0 Call Trace: ib_device_release+0xd2/0x1c0 drivers/infiniband/core/device.c:509 device_release+0x9c/0x1c0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x22b/0x480 lib/kobject.c:737 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245