[syzbot] Monthly net report (Jun 2026)

[syzbot] Monthly net report (Jun 2026)

[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, 5 new issues were detected and 15 were fixed.
In total, 59 issues are still open and 1748 have already been fixed.
There are also 30 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  8753    Yes   KMSAN: uninit-value in eth_type_trans (2)
                   https://syzkaller.appspot.com/bug?extid=0901d0cc75c3d716a3a3
<2>  2480    Yes   unregister_netdevice: waiting for DEV to become free (9)
                   https://syzkaller.appspot.com/bug?extid=e2af46126e0644cbebdd
<3>  686     Yes   INFO: task hung in tun_chr_close (5)
                   https://syzkaller.appspot.com/bug?extid=b0ae8f1abf7d891e0426
<4>  456     Yes   WARNING in inet_sock_destruct (6)
                   https://syzkaller.appspot.com/bug?extid=5b3b7e51dda1be027b7a
<5>  447     No    possible deadlock in __ipv6_dev_mc_inc
                   https://syzkaller.appspot.com/bug?extid=afbcf622635e98bf40d2
<6>  443     Yes   INFO: task hung in nsim_destroy (4)
                   https://syzkaller.appspot.com/bug?extid=8141dcbd23a8f857798a
<7>  150     No    possible deadlock in __ethtool_get_link_ksettings
                   https://syzkaller.appspot.com/bug?extid=9bb8bd77f3966641f298
<8>  83      Yes   KASAN: use-after-free Read in qdisc_pkt_len_segs_init
                   https://syzkaller.appspot.com/bug?extid=83181a31faf9455499c5
<9>  67      Yes   INFO: rcu detected stall in rescuer_thread (2)
                   https://syzkaller.appspot.com/bug?extid=d5f7a5097c24c7c2dbbb
<10> 3       Yes   memory leak in __vsock_create (2)
                   https://syzkaller.appspot.com/bug?extid=1b2c9c4a0f8708082678

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