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2023 Feb 23
0
[Bridge] [netfilter][bridge...?][BUG report] vmalloc-out-of-bounds Read in __ebt_unregister_table
...out that and related bridge. But report for just-in-case.
I attached C reproducer and syzkaller report.
Thank you for your deication.
>From iCAROS7.
<Information of my syzkaller system>
CPU: Intel i7-12700K
OS: Kubuntu 22.04.1 LTS (amd64)
Kernel: 5.18.19-051819-generic
Syzkaller
build: bcdf85f8
Target kernel: a5c95ca1
Syzkaller hit 'KASAN: vmalloc-out-of-bounds Read in __ebt_unregister_table' bug.
==================================================================
BUG: KASAN: vmalloc-out-of-bounds in
__ebt_unregister_table+0xcc5/0xce0
net/bridge/netfilter/ebtables.c:1168
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