[syzbot] Monthly rdma report (Oct 2025)

[syzbot] Monthly rdma report (Oct 2025)

[syzbot]

Hello rdma maintainers/developers,

This is a 31-day syzbot report for the rdma subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/rdma

During the period, 1 new issues were detected and 0 were fixed.
In total, 8 issues are still open and 66 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 969     No    INFO: task hung in rdma_dev_change_netns
                  https://syzkaller.appspot.com/bug?extid=73c5eab674c7e1e7012e
<2> 546     Yes   WARNING in rxe_pool_cleanup
                  https://syzkaller.appspot.com/bug?extid=221e213bf17f17e0d6cd
<3> 100     No    INFO: task hung in rdma_dev_exit_net (6)
                  https://syzkaller.appspot.com/bug?extid=3658758f38a2f0f062e7
<4> 94      No    INFO: task hung in add_one_compat_dev (3)
                  https://syzkaller.appspot.com/bug?extid=6dee15fdb0606ef7b6ba
<5> 89      Yes   WARNING in gid_table_release_one (3)
                  https://syzkaller.appspot.com/bug?extid=b0da83a6c0e2e2bddbd4
<6> 5       Yes   KASAN: slab-use-after-free Read in ucma_create_uevent
                  https://syzkaller.appspot.com/bug?extid=a6ffe86390c8a6afc818

---
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Re: [syzbot] Monthly rdma report (Oct 2025)

[yanjun.zhu]

On 10/23/25 12:26 AM, syzbot wrote:
> Hello rdma maintainers/developers,
> 
> This is a 31-day syzbot report for the rdma subsystem.
> All related reports/information can be found at:
> https://syzkaller.appspot.com/upstream/s/rdma
> 
> During the period, 1 new issues were detected and 0 were fixed.
> In total, 8 issues are still open and 66 have already been fixed.
> 
> Some of the still happening issues:
> 
> Ref Crashes Repro Title
> <1> 969     No    INFO: task hung in rdma_dev_change_netns
>                    https://syzkaller.appspot.com/bug?extid=73c5eab674c7e1e7012e
> <2> 546     Yes   WARNING in rxe_pool_cleanup
>                    https://syzkaller.appspot.com/bug?extid=221e213bf17f17e0d6cd
> <3> 100     No    INFO: task hung in rdma_dev_exit_net (6)
>                    https://syzkaller.appspot.com/bug?extid=3658758f38a2f0f062e7
> <4> 94      No    INFO: task hung in add_one_compat_dev (3)
>                    https://syzkaller.appspot.com/bug?extid=6dee15fdb0606ef7b6ba
> <5> 89      Yes   WARNING in gid_table_release_one (3)
>                    https://syzkaller.appspot.com/bug?extid=b0da83a6c0e2e2bddbd4

About this problem ("WARNING in gid_table_release_one (3)"), I have a 
commit that can solve this problem. I will send it out for code review soon.

Yanjun.Zhu

> <6> 5       Yes   KASAN: slab-use-after-free Read in ucma_create_uevent
>                    https://syzkaller.appspot.com/bug?extid=a6ffe86390c8a6afc818
> 
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
> 
> To disable reminders for individual bugs, reply with the following command:
> #syz set <Ref> no-reminders
> 
> To change bug's subsystems, reply with:
> #syz set <Ref> subsystems: new-subsystem
> 
> You may send multiple commands in a single email message.