From: Jakub Kicinski <kuba@kernel.org>
To: Hidayath Khan <hidayath@linux.ibm.com>
Cc: davem@davemloft.net, edumazet@google.com, pabeni@redhat.com,
wintera@linux.ibm.com, alibuda@linux.alibaba.com,
dust.li@linux.alibaba.com, sidraya@linux.ibm.com,
wenjia@linux.ibm.com, mjambigi@linux.ibm.com,
tonylu@linux.alibaba.com, guwen@linux.alibaba.com,
horms@kernel.org, hca@linux.ibm.com, gor@linux.ibm.com,
agordeev@linux.ibm.com, borntraeger@linux.ibm.com,
svens@linux.ibm.com, pasic@linux.ibm.com, gbayer@linux.ibm.com,
andrew+netdev@lunn.ch, netdev@vger.kernel.org,
linux-s390@vger.kernel.org, linux-rdma@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net v2] dibs: fix double free of dmb_clientid_arr
Date: Fri, 7 Aug 2026 15:50:38 -0700 [thread overview]
Message-ID: <20260807155038.4c48fc54@kernel.org> (raw)
In-Reply-To: <20260806120447.596164-1-hidayath@linux.ibm.com>
On Thu, 6 Aug 2026 14:04:47 +0200 Hidayath Khan wrote:
> dibs_dev_add() frees dibs->dmb_clientid_arr on both of its failure
> paths, but does not clear the pointer. dibs_lo_dev_probe() then frees
> the same pointer again in its err_reg path, so a failing device_add()
> or sysfs_create_group() results in a double free.
>
> Drop the kfree() from dibs_lo_dev_probe().
This should be squashed with Alexandra's fix.
next prev parent reply other threads:[~2026-08-07 22:50 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-06 12:04 [PATCH net v2] dibs: fix double free of dmb_clientid_arr Hidayath Khan
2026-08-06 23:08 ` Dust Li
2026-08-07 22:50 ` Jakub Kicinski [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-07-30 7:56 [PATCH net] " Hidayath Khan
2026-08-06 12:00 ` [PATCH net v2] " Hidayath Khan
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