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Tue, 26 Mar 2024 19:13:46 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <27e443af-398f-4e8b-8b75-b5b172546dfb@I-love.SAKURA.ne.jp> Date: Tue, 26 Mar 2024 19:13:45 +0900 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [mm?] usb-testing boot error: WARNING: refcount bug in __reset_page_owner Content-Language: en-US To: Oscar Salvador , syzbot Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000151f4a06148c0966@google.com> From: Tetsuo Handa In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 5916F10000B X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: rzjgtau5jo85s59fdfoeuuzjnjnyqeu3 X-HE-Tag: 1711448034-232983 X-HE-Meta: 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 hNT0/xlz 3Ctim6Tbb/01KtasjOkzTLt4A0GtVV2tud3Rqmaha3HGx+sDELceTcm+HBQwB4dsxShXh6Bgf4OF7EHMoEngAOwBnxcDV2Xt4QzL/WT8zLRkHEoGoFReu4W4K+kbprcpR6eSecj0kIB7dojV/Q7pJBMJ283YUNWHoWe61bIz1pEjFe7ah9RjGCjyPA4Xrm/WPjXpHP2I/43ZCDyZOATXjIQhUi0acnyl9kW1KR2JSp+EZaSeRtEHUXF6GcMUKmExy4gKtKUQlDDnGpZccCIE1FgbT1G3OaJsoOvyIe7IrL2Va6QV1/9uoDsuda8nCE09P/0T5stMDpaQ+vhWLxxz16oI0wIY2JJnYzzUrG8iPpwBDgtbt+FNbBt5Z8jADiWkXtLhB/Sohc94U3ctSHCsz8qww0HfRNmvcIJaMgV3i9nrMV9DHW8BsXat8du35CAXVh3ox9SsuX23z9qiEs4YIpjNebddJegKg5HTNEpV/PcF8R3A= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 2024/03/26 18:16, Oscar Salvador wrote: > On Tue, Mar 26, 2024 at 01:25:40AM -0700, syzbot wrote: >> Hello, >> >> syzbot found the following issue on: >> > ... >> ------------[ cut here ]------------ >> refcount_t: decrement hit 0; leaking memory. >> WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31 > > This is fixed by [1] > > [1] https://lore.kernel.org/linux-mm/20240326063036.6242-1-osalvador@suse.de/ > > The correct format is shown below. #syz fix: mm,page_owner: Fix refcount imbalance