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Open Source and information security mailing list archives
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Date: Sun, 27 Dec 2020 11:53:05 +0100 From: Pablo Neira Ayuso <pablo@...filter.org> To: Florian Westphal <fw@...len.de> Cc: netfilter-devel@...r.kernel.org, netdev@...r.kernel.org, torvalds@...ux-foundation.org, syzkaller-bugs@...glegroups.com, syzbot+e86f7c428c8c50db65b4@...kaller.appspotmail.com Subject: Re: [PATCH nf] netfilter: xt_RATEEST: reject non-null terminated string from userspace On Tue, Dec 22, 2020 at 11:23:56PM +0100, Florian Westphal wrote: > syzbot reports: > detected buffer overflow in strlen > [..] > Call Trace: > strlen include/linux/string.h:325 [inline] > strlcpy include/linux/string.h:348 [inline] > xt_rateest_tg_checkentry+0x2a5/0x6b0 net/netfilter/xt_RATEEST.c:143 > > strlcpy assumes src is a c-string. Check info->name before its used. Applied, thanks Florian.
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