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AJvYcCXozLZetRxXhY2AZSemSNsAwRGbCuyUb0dcr0EAPkkZUiEU2nrzaBrYBYWuYhB+QJvalQBh+CDDSZE6ADQ=@vger.kernel.org X-Gm-Message-State: AOJu0Yx2qGL2LyHXmg4GGTJcjx84Sqjbrdw0QM9rQSismuXnOJIWylzl cwzIaU3OLQci/S97Q0WLx8+R57PR0RbT2xhcIPS20ilUDhTwNCqEs0wCQ6bQZFY/JQOFL+ici/f lntRWA1yujTGf5+fTbXU4HW+kcoSkCS3HGIUctuEU5kH3aCliJ5fQkl0jeo8= X-Google-Smtp-Source: AGHT+IHqhBkqFGSWmccIkGL+Lakomv6MCzcEbuBafeGDOb3f8HYP1KO6Pv/gY7t2TkOhaddzeIpDzZ198+G0xBEZ4ZaOjEypAPee Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a62:b0:424:19c4:3000 with SMTP id e9e14a558f8ab-42419c43026mr2785425ab.14.1758058746498; Tue, 16 Sep 2025 14:39:06 -0700 (PDT) Date: Tue, 16 Sep 2025 14:39:06 -0700 In-Reply-To: <295acd4d-1f40-455a-9d2f-27393cd047bd@linux.dev> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68c9d8fa.050a0220.50883.0020.GAE@google.com> Subject: Re: [syzbot] [rdma?] WARNING in gid_table_release_one (3) From: syzbot To: jgg@ziepe.ca, leon@kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, yanjun.zhu@linux.dev Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in gid_table_release_one ------------[ cut here ]------------ GID entry ref leak for dev syz1 index 2 ref=426, state: 3 WARNING: CPU: 1 PID: 36 at drivers/infiniband/core/cache.c:815 release_gid_table drivers/infiniband/core/cache.c:812 [inline] WARNING: CPU: 1 PID: 36 at drivers/infiniband/core/cache.c:815 gid_table_release_one+0x606/0x7c0 drivers/infiniband/core/cache.c:898 Modules linked in: CPU: 1 UID: 0 PID: 36 Comm: kworker/u8:2 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Workqueue: ib-unreg-wq ib_unregister_work RIP: 0010:release_gid_table drivers/infiniband/core/cache.c:812 [inline] RIP: 0010:gid_table_release_one+0x606/0x7c0 drivers/infiniband/core/cache.c:898 Code: 0f b6 04 28 84 c0 0f 85 80 00 00 00 44 8b 45 00 48 c7 c7 60 4b 71 8c 48 8b 74 24 38 48 8b 54 24 18 44 89 e1 e8 5b 7e fa f8 90 <0f> 0b 90 90 e9 f0 fb ff ff 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 8f RSP: 0018:ffffc90000ac78f8 EFLAGS: 00010246 RAX: fc4e2f5b20774800 RBX: ffff8880786046d8 RCX: ffff8881442b1e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffff888024e8ee90 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa24c R12: 00000000000001aa R13: dffffc0000000000 R14: ffff8880227ec778 R15: 0000000000000010 FS: 0000000000000000(0000) GS:ffff888125d16000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555b331808 CR3: 0000000026c94000 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:3236 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Tested on: commit: 59f2dceb RDMA/core: Fix WARNING in gid_table_release_one git tree: https://github.com/zhuyj/linux.git v6.17_fix_gid_table_release_one console output: https://syzkaller.appspot.com/x/log.txt?x=133dfb12580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4239c29711f936f dashboard link: https://syzkaller.appspot.com/bug?extid=b0da83a6c0e2e2bddbd4 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Note: no patches were applied.