------------[ cut here ]------------ GID entry ref leak for dev syz1 index 2 ref=1 WARNING: CPU: 1 PID: 5235 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 1 PID: 5235 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 Modules linked in: CPU: 1 PID: 5235 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 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : release_gid_table drivers/infiniband/core/cache.c:806 [inline] pc : gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 lr : release_gid_table drivers/infiniband/core/cache.c:806 [inline] lr : gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 sp : ffff80001fdf7900 x29: ffff80001fdf7950 x28: ffff0000c15b6e00 x27: ffff0000d267c0d8 x26: ffff0000d267c000 x25: 0000000000000010 x24: 0000000000000001 x23: ffff80001659e000 x22: dfff800000000000 x21: 0000000000000003 x20: 1fffe0001a4cf81b x19: 1fffe0001a4cf800 x18: 1fffe0003422158e x17: ffff800016cf0000 x16: ffff8000111a97c4 x15: ffff8000167d04c0 x14: ffff0000cc100a00 x13: 1ffff0000282c06b x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : 5708d29dcce44d00 x8 : 5708d29dcce44d00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff800008503958 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000002d Call trace: release_gid_table drivers/infiniband/core/cache.c:806 [inline] gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 ib_cache_release_one+0x144/0x174 drivers/infiniband/core/cache.c:1648 ib_device_release+0xc4/0x18c drivers/infiniband/core/device.c:497 device_release+0x8c/0x1ac 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+0x2cc/0x454 lib/kobject.c:761 put_device+0x28/0x40 drivers/base/core.c:3520 ib_unregister_work+0x28/0x38 drivers/infiniband/core/device.c:1595 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457 kthread+0x374/0x454 kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 828078 hardirqs last enabled at (828077): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (828077): [] finish_lock_switch+0xb0/0x1c4 kernel/sched/core.c:4784 hardirqs last disabled at (828078): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (828062): [] softirq_handle_end kernel/softirq.c:419 [inline] softirqs last enabled at (828062): [] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:604 softirqs last disabled at (827265): [] __do_softirq kernel/softirq.c:610 [inline] softirqs last disabled at (827265): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (827265): [] invoke_softirq kernel/softirq.c:457 [inline] softirqs last disabled at (827265): [] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:659 ---[ end trace 3f9ee31a99f20398 ]---