[syzbot] Monthly net report (Jul 2025)

[syzbot] Monthly net report (Jul 2025)

[syzbot]

Hello net maintainers/developers,

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

During the period, 13 new issues were detected and 12 were fixed.
In total, 140 issues are still open and 1626 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  350506  Yes   unregister_netdevice: waiting for DEV to become free (8)
                   https://syzkaller.appspot.com/bug?extid=881d65229ca4f9ae8c84
<2>  12874   Yes   BUG: workqueue lockup (5)
                   https://syzkaller.appspot.com/bug?extid=f0b66b520b54883d4b9d
<3>  9216    Yes   KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
                   https://syzkaller.appspot.com/bug?extid=5fe14f2ff4ccbace9a26
<4>  7829    Yes   WARNING: suspicious RCU usage in dev_deactivate_queue
                   https://syzkaller.appspot.com/bug?extid=ca9ad1d31885c81155b6
<5>  7302    Yes   KMSAN: uninit-value in eth_type_trans (2)
                   https://syzkaller.appspot.com/bug?extid=0901d0cc75c3d716a3a3
<6>  3260    Yes   INFO: task hung in linkwatch_event (4)
                   https://syzkaller.appspot.com/bug?extid=2ba2d70f288cf61174e4
<7>  2611    Yes   WARNING in rcu_check_gp_start_stall
                   https://syzkaller.appspot.com/bug?extid=111bc509cd9740d7e4aa
<8>  1817    Yes   INFO: task hung in del_device_store
                   https://syzkaller.appspot.com/bug?extid=6d10ecc8a97cc10639f9
<9>  1580    Yes   KMSAN: uninit-value in bpf_prog_run_generic_xdp
                   https://syzkaller.appspot.com/bug?extid=0e6ddb1ef80986bdfe64
<10> 1492    Yes   INFO: task hung in addrconf_dad_work (5)
                   https://syzkaller.appspot.com/bug?extid=82ccd564344eeaa5427d

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