syzbot suspects this issue was fixed by commit:
commit 537cf4e3cc2f6cc9088dcd6162de573f603adc29
Author: Magnus Karlsson [off-list ref]
Date: Fri Nov 20 11:53:39 2020 +0000
xsk: Fix umem cleanup bug at socket destruct
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=139f3dfb500000
start commit: e87d24fc Merge branch 'net-iucv-fixes-2020-11-09'
git tree: net
kernel config: https://syzkaller.appspot.com/x/.config?x=61033507391c77ff
dashboard link: https://syzkaller.appspot.com/bug?extid=5f326d255ca648131f87
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10d10006500000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=126c9eaa500000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: xsk: Fix umem cleanup bug at socket destruct
For information about bisection process see: https://goo.gl/tpsmEJ#bisection