linux-kernel - Re: KASAN: null-ptr-deref in bpf_core_calc_relo

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Message-ID: <2bc94ca9dc634785c3f464576fac7450ffe8e686.camel@gmail.com>
Date: Wed, 21 Aug 2024 09:42:44 -0700
From: Eduard Zingerman <eddyz87@...il.com>
To: Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc: Liu RuiTong <cnitlrt@...il.com>, stable <stable@...r.kernel.org>, Linux
 Regressions <regressions@...ts.linux.dev>, bpf <bpf@...r.kernel.org>, LKML
 <linux-kernel@...r.kernel.org>
Subject: Re: KASAN: null-ptr-deref in bpf_core_calc_relo_insn

On Wed, 2024-08-21 at 09:40 -0700, Alexei Starovoitov wrote:
> On Wed, Aug 21, 2024 at 9:34 AM Eduard Zingerman <eddyz87@...il.com> wrote:
> > 
> > On Wed, 2024-08-21 at 04:46 -0700, Eduard Zingerman wrote:
> > 
> > [...]
> > 
> > > will post a fix to bpf mailing list shortly.
> > 
> > Status update:
> > apologies for the delay, the fix is trivial but I have some problems
> > with test case not printing expected log on BPF CI, need some time to debug.
> > 
> > Link to wip patch:
> > https://github.com/eddyz87/bpf/tree/relo-core-bad-local-id
> 
> I would ship the fix (since it's trivial) and sort out selftest later.

Makes sense, will submit the fix.