From: Dan Carpenter <dan.carpenter@linaro.org>
To: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: David Gow <davidgow@google.com>, Will Deacon <will@kernel.org>,
mic@digikod.net, keescook@chromium.org, rmoar@google.com,
lkft-triage@lists.linaro.org, kunit-dev@googlegroups.com,
linux-kernel@vger.kernel.org, peterz@infradead.org,
mingo@redhat.com, longman@redhat.com, boqun.feng@gmail.com,
anders.roxell@linaro.org, arnd@arndb.de, linux@roeck-us.net,
Linux Kernel Functional Testing <lkft@linaro.org>
Subject: Re: BUG: KASAN: null-ptr-deref in _raw_spin_lock_irq next-20240410
Date: Thu, 11 Apr 2024 18:00:25 +0300 [thread overview]
Message-ID: <f2d02e35-185e-44d1-9b58-1034336e2e0d@moroto.mountain> (raw)
In-Reply-To: <CA+G9fYt6U4YzYGvYWxDVvUVKNc0pgVYiGafZ5_OSEf=5r1=YYA@mail.gmail.com>
On Thu, Apr 11, 2024 at 08:20:55PM +0530, Naresh Kamboju wrote:
>
> I use to notice kernel panic while running kunit tests
> now I have noticed this
>
> Unable to handle kernel paging request at virtual address
> KASAN: null-ptr-deref in range
> pc : kunit_test_null_dereference (lib/kunit/kunit-test.c:119)
> lr : kunit_generic_run_threadfn_adapter (lib/kunit/try-catch.c:31)
>
> The kunit tests run to completion and the system is stable.
> Kernel did not panic.
>
[ Snip ]
> <0>[ 76.808597] Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
> <4>[ 76.809876] Modules linked in:
> <4>[ 76.812055] CPU: 1 PID: 567 Comm: kunit_try_catch Tainted: G
> B N 6.9.0-rc3-next-20240410 #1
> <4>[ 76.812987] Hardware name: linux,dummy-virt (DT)
> <4>[ 76.814123] pstate: 12400009 (nzcV daif +PAN -UAO +TCO -DIT
> -SSBS BTYPE=--)
> <4>[ 76.814947] pc : kunit_test_null_dereference (lib/kunit/kunit-test.c:119)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
This is a new intentional NULL dereferencer that was added yesterday.
Maybe these should have a big printk, "Intentional NULL dereference
coming up!\n".
regards,
dan carpenter
next prev parent reply other threads:[~2024-04-11 15:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-10 10:27 BUG: KASAN: null-ptr-deref in _raw_spin_lock_irq next-20240410 Naresh Kamboju
2024-04-10 15:23 ` Will Deacon
2024-04-10 17:14 ` Naresh Kamboju
2024-04-10 17:21 ` Naresh Kamboju
2024-04-11 4:25 ` David Gow
2024-04-11 8:48 ` Mickaël Salaün
2024-04-11 14:42 ` Naresh Kamboju
2024-04-11 14:50 ` Naresh Kamboju
2024-04-11 15:00 ` Dan Carpenter [this message]
2024-04-11 15:05 ` Guenter Roeck
2024-04-12 3:26 ` David Gow
2024-04-12 3:23 ` David Gow
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