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b=dSHRJ2H4ZMsx/7L5DpIKOCKBHMpa7KlEFV/K/XifwAh7BqyKRFr+FsfeVeMuU3hqE Kkx5Tiyhc2FGo135XrT2vRO2Nqqhf69Zwmp0NuQ+AD0C2lX2emi5VkqIEhT6tHg854 3wovHiUPqv3mv08ISGdMGGIktHL5AVGEG9R2sEWM= Date: Tue, 3 Jun 2025 21:48:12 -0700 From: Andrew Morton To: Luka Cc: Hugh Dickins , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [BUG] WARNING in shmem_rmdir in Linux kernel v6.12 Message-Id: <20250603214812.3c0e774ffa4700f47bd1340f@linux-foundation.org> In-Reply-To: References: X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 1330312000B X-Stat-Signature: smcr8iwhtd7p6mksjdgr51piac18sy48 X-Rspam-User: X-HE-Tag: 1749012493-754595 X-HE-Meta: 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 0s2kyIra 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 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 Wed, 4 Jun 2025 12:43:01 +0800 Luka wrote: > Dear Kernel Maintainers, > > I am writing to report a potential vulnerability identified in the > upstream Linux Kernel version v6.12, corresponding to the following > commit in the mainline repository: > > Git Commit: adc218676eef25575469234709c2d87185ca223a (tag: v6.12) > > This issue was discovered during the testing of the Android 16 AOSP > kernel, which is based on Linux kernel version 6.12, specifically from > the AOSP kernel branch: > > AOSP kernel branch: android16-6.12 > Manifest path: kernel/common.git > Source URL: https://android.googlesource.com/kernel/common/+/refs/heads/android16-6.12 > > Although this kernel branch is used in Android 16 development, its > base is aligned with the upstream Linux v6.12 release. I observed this > issue while conducting stability and fuzzing tests on the Android 16 > platform and identified that the root cause lies in the upstream > codebase. Please just include all the bug info in the email. > > Bug Location: shmem_rmdir+0x48/0x84 mm/shmem.c:3733 > > Bug Report: https://hastebin.com/share/jazumewiya.css > > Entire Log: https://hastebin.com/share/uyuyaheken.perl Those links don't work for me. "We're sorry, but the contents of the bin could not be found, or it has been deleted"