From: Christian Schoenebeck <linux_oss@crudebyte.com>
To: ericvh@kernel.org, lucho@ionkov.net, asmadeus@codewreck.org,
Tuo Li <islituo@gmail.com>
Cc: v9fs@lists.linux.dev, linux-kernel@vger.kernel.org,
Tuo Li <islituo@gmail.com>
Subject: Re: [PATCH] net: 9p: Fix a possible null-pointer dereference in p9_cm_event_handler()
Date: Thu, 18 Dec 2025 11:54:48 +0100 [thread overview]
Message-ID: <2810825.mvXUDI8C0e@weasel> (raw)
In-Reply-To: <20251218071012.7740-1-islituo@gmail.com>
On Thursday, 18 December 2025 08:10:12 CET Tuo Li wrote:
> In p9_cm_event_handler(), rdma is checked in the RDMA_CM_EVENT_DISCONNECTED
> case, indicating that it may be NULL. If this happens, a null-pointer
> dereference can occur when complete() is called:
>
> complete(&rdma->cm_done);
>
> To prevent such a potential null-pointer dereference, add a defensive check
> before invoking complete().
>
> Signed-off-by: Tuo Li <islituo@gmail.com>
> ---
Reviewed-by: Christian Schoenebeck <linux_oss@crudebyte.com>
next prev parent reply other threads:[~2025-12-18 10:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-18 7:10 [PATCH] net: 9p: Fix a possible null-pointer dereference in p9_cm_event_handler() Tuo Li
2025-12-18 10:54 ` Christian Schoenebeck [this message]
2025-12-18 12:56 ` asmadeus
2025-12-18 13:13 ` Tuo Li
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