[syzbot] Monthly hams report (Apr 2026)

Hello hams maintainers/developers,

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

During the period, 3 new issues were detected and 1 were fixed.
In total, 20 issues are still open and 48 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  16483   Yes   possible deadlock in nr_rt_device_down (3)
                   https://syzkaller.appspot.com/bug?extid=ccdfb85a561b973219c7
<2>  8461    Yes   possible deadlock in nr_rt_ioctl (2)
                   https://syzkaller.appspot.com/bug?extid=14afda08dc3484d5db82
<3>  4371    Yes   WARNING: ODEBUG bug in handle_softirqs
                   https://syzkaller.appspot.com/bug?extid=60db000b8468baeddbb1
<4>  1122    Yes   possible deadlock in nr_remove_neigh (2)
                   https://syzkaller.appspot.com/bug?extid=8863ad36d31449b4dc17
<5>  803     Yes   WARNING: ODEBUG bug in __run_timers (3)
                   https://syzkaller.appspot.com/bug?extid=7287222a6d88bdb559a7
<6>  188     Yes   possible deadlock in nr_del_node (2)
                   https://syzkaller.appspot.com/bug?extid=6eb7834837cf6a8db75b
<7>  32      Yes   WARNING: refcount bug in ax25_setsockopt
                   https://syzkaller.appspot.com/bug?extid=0ee4da32f91ae2a3f015
<8>  26      No    KASAN: slab-use-after-free Write in rose_send_frame
                   https://syzkaller.appspot.com/bug?extid=9cc08d5dcb1fc8feee76
<9>  24      Yes   KASAN: slab-use-after-free Read in nr_rt_ioctl
                   https://syzkaller.appspot.com/bug?extid=df52f4216bf7b4d768e7
<10> 23      No    KASAN: slab-use-after-free Read in rose_t0timer_expiry
                   https://syzkaller.appspot.com/bug?extid=44cccec2c6a4501f6a45

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