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([2001:a61:1399:ff01:bd7:b9d5:f4ba:1161]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a773b9b5dsm54235445e9.7.2026.04.28.04.33.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Apr 2026 04:33:26 -0700 (PDT) Message-ID: <5c8e6c36-e8e5-4e88-b789-0f46614cb03e@suse.com> Date: Tue, 28 Apr 2026 13:33:20 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [usb?] memory leak in hub_event (4) To: Alan Stern Cc: syzbot , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <69ec231a.a00a0220.7773.000c.GAE@google.com> <9fea44a5-83de-41ed-9531-11e5d471dca4@suse.com> Content-Language: en-US From: Oliver Neukum In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 27.04.26 16:19, Alan Stern wrote: > This is not needed. dev->rawdescriptors and dev->config are deallocated > in usb_destroy_configuration(), which gets called when the usb_device > structure is released. > > The memory leak must have a different cause. You are correct. Yet I can see no way for usb_destroy_configuration() to not run. Hence we must be overlooking something. Regards Oliver