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From: Roman Gushchin To: Xingyu Li Cc: hannes@cmpxchg.org, mhocko@kernel.org, shakeel.butt@linux.dev, muchun.song@linux.dev, cgroups@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Yu Hao Subject: Re: BUG: general protection fault in get_mem_cgroup_from_objcg Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 8F0751C0006 X-Stat-Signature: nok56csyihue7zhc7w9efi5714461gfw X-HE-Tag: 1724899414-766135 X-HE-Meta: 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 AJwFuA5m Jtzwf078FqDn903Xn2oCVelcsSPGl9ZSrC0lMcvMwmg98zN/589l7WJdSYxp/6g3lJLfjsauVEbhwJT669Jd/ghc/ybiln7z2TWVXD0nSGAhUN6ZC7CNFMjrWfmYqxd7ZHD2Yqaw1Q8SfGMHrgHOIPU0bh6ooAmsKEeljwNx0xc1a5Zt+cFWPPB/78J3BFz4VB64Xip2lPUDaxwEfhMCV7Cr8DkVumOtoTBm0o4LAVtLOpRS7Hmn24zF4By+aXQx+HhSh 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, Aug 28, 2024 at 04:09:49PM -0700, Xingyu Li wrote: > Hi, > > We found a bug in Linux 6.10 using syzkaller. It is possibly a null > pointer dereference bug. > The reprodcuer is > https://gist.github.com/freexxxyyy/315733cb1dc3bc8cbe055b457c1918c0 Hello, thank you for the report. Can you, please, share the kernel config file? Also, how long does it take to reproduce? Thanks!