[syzbot] Monthly net report (Aug 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, 16 new issues were detected and 9 were fixed.
In total, 61 issues are still open and 1772 have already been fixed.
There are also 33 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  6308    Yes   unregister_netdevice: waiting for DEV to become free (9)
                   https://syzkaller.appspot.com/bug?extid=e2af46126e0644cbebdd
<2>  4380    Yes   INFO: task hung in synchronize_rcu (4)
                   https://syzkaller.appspot.com/bug?extid=222aa26d0a5dbc2e84fe
<3>  703     Yes   INFO: task hung in tun_chr_close (5)
                   https://syzkaller.appspot.com/bug?extid=b0ae8f1abf7d891e0426
<4>  501     No    possible deadlock in __ipv6_dev_mc_inc
                   https://syzkaller.appspot.com/bug?extid=afbcf622635e98bf40d2
<5>  454     Yes   INFO: task hung in nsim_destroy (4)
                   https://syzkaller.appspot.com/bug?extid=8141dcbd23a8f857798a
<6>  28      Yes   WARNING in dev_shutdown (7)
                   https://syzkaller.appspot.com/bug?extid=c9ecf60a8adb7629821e
<7>  20      Yes   KASAN: slab-use-after-free Read in rxrpc_destroy_all_peers
                   https://syzkaller.appspot.com/bug?extid=c876adfab6362679008c
<8>  19      Yes   KASAN: slab-out-of-bounds Read in __dynamic_pr_debug
                   https://syzkaller.appspot.com/bug?extid=1e3df0852e82c21ca418
<9>  12      Yes   INFO: task hung in inet6_rtm_newaddr (2)
                   https://syzkaller.appspot.com/bug?extid=101224300649c3eb8af4
<10> 3       Yes   BUG: using smp_processor_id() in preemptible code in tx_complete
                   https://syzkaller.appspot.com/bug?extid=04cd90bb99c6ef81a65d

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