From: Heiko Carstens <hca@linux.ibm.com>
To: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Cc: linux-s390@vger.kernel.org,
Alexander Gordeev <agordeev@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>
Subject: Re: [PATCH] s390/debug: Reject NULL debug info in debug_dump()
Date: Fri, 18 Sep 2026 15:09:50 +0200 [thread overview]
Message-ID: <20260918130950.20386G5f-hca@linux.ibm.com> (raw)
In-Reply-To: <20260916165330.2309909-1-zaslonko@linux.ibm.com>
On Wed, Sep 16, 2026 at 06:53:30PM +0200, Mikhail Zaslonko wrote:
> debug_dump() passes id on to debug_info_copy(), which dereferences
> in->name unchecked. debug_unregister(), debug_set_size() and
> debug_register_view() guard against a NULL id but debug_dump() does not.
> Nothing reaches this today, but add the check for consistency.
>
> Reported-by: Sashiko <sashiko-bot@kernel.org>
> Closes: https://lore.kernel.org/all/20260910110147.96E851F000FF@smtp.kernel.org/
> Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
> ---
> arch/s390/kernel/debug.c | 3 +++
> 1 file changed, 3 insertions(+)
Applied, thanks!
prev parent reply other threads:[~2026-09-18 13:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 16:53 [PATCH] s390/debug: Reject NULL debug info in debug_dump() Mikhail Zaslonko
2026-09-16 17:02 ` sashiko-bot
2026-09-18 13:09 ` Heiko Carstens [this message]
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