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b=is6KQl01jgWMql6FMQr1xk4ZLTp10tUIpdaw1BuP5Rf1d3EdS7dMLKaiPRZThwuqD Zz3wcM39/XWli/MFxs5l2NuNPSjlU8qMWXqNptPFuT4CFfVUNdkDthAFS1YK6zQLS1 nmtpMdpWmBqCCe2wIfrgXYPvi8EvGSNXfa7xlVQe2pGyMROlgXFPsY+GF1r/q/OwTB p+s5pjSRGKJFXbW5tWnRNXxcQRntY9B3rZ83+pI7dTryfPaOjIWD6J8mfxP/35Wwg4 NCNXkDMfDYhL3azEtB6DmMI4zns9IM5YqZaboMTZZIo95XbBv3wHc3xcP0mVoCNIyl 60gxvEX45F9Tw== Message-ID: <90cd8ace-b135-45d6-815b-bf7329cbfa4d@kernel.org> Date: Tue, 8 Sep 2026 11:32:18 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [mm?] WARNING in vma_add_pgoff Content-Language: en-US To: "Lorenzo Stoakes (ARM)" , syzbot Cc: akpm@linux-foundation.org, jannh@google.com, liam@infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, pfalcato@suse.de, syzkaller-bugs@googlegroups.com References: <20260907192517.564ea15aa8c9d47669b3a81f@linux-foundation.org> <6a9f8bc6.f614420e.2bf292.0005.GAE@google.com> From: "Vlastimil Babka (SUSE)" Autocrypt: addr=vbabka@kernel.org; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSNWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBrZXJuZWwub3JnPsLBsAQTAQoAWhYhBKlA1DSZLC6OmRA9UCJPp+fM gqZkBQJqFFy6GxSAAAAAAAQADm1hbnUyLDIuNSsxLjEyLDIsMgIbAwUJGtCBUAULCQgHAwUV CgkICwUWAgMBAAIeBQIXgAAKCRAiT6fnzIKmZJIUEADFx/tREzUImHrEwVHeSvDFmA7tJysI UVrlvrM09E7GIuzphzv7jYmo8n3ANpCczLEVr4G0syYQdTigaZgv3+FQDIIzhKih1IHhu1Ei XHlywNWKnQxxQEUNi5Mwx43wQz5XVw9F1A7gtKBKNtfogO511hAbrzagrYajyQacEJ/+sfhZ 9Da8ltHIXD8pcYaHUfQgEusCgmEd9+KrUwrTbckFKmYq5chuE6yJ4J0EmWknL096jIE6CnzF FRslQ3B1UKDjxVsm1ZHfir5NeWszLkTvGFsddFaWTgh8UycESG6VQzKXjjewXu2pG7YQYRpj QKm1W5X2TkwWkXRBZTmfmbhxIUMh3+zf5wQ463rSmDN/8v81tdqBtAW6rH/kzg1GvkaTHXn0 507yEHFzBksk2viAuIxxr7km8+/KARYLIdGtx30EG8cKzAUZOK6WqxtNCsXUJNrVE8CWrCaD icoNu7Fs1c5hmPHdSTnU48ce67449DdnO4neLSNhRiGlMHJgfJUmgrxu/hcYeOZ3haWmEQ2w uW1Mh01OHi8QZHCEyAbABrPs9GUgccc/4eYXX9hIgxfSkYzn8f+8NuIFPWl/0uTvjgqU29FQ SbzOLxHq9439Ox40G5mS5eZXRGxITYR+6TXvRGI6P/264jvflnr/pDGUttaikU+0W+1uxgKH cmYbEc7ATQRbGTU1AQgAn0H6UrFiWcovkh6EXVcl+SeqyO6JHOPm+e9Wu0Vw+VIUvXZVUVVQ La1PQDUi6j00ChlcR66g9/V0sPIcSutacPKfdKYOBvzd4rlhL8rfrdEsQw5ApZxrA8kYZVMh FmBRKAa6wos25moTlMKpCWzTH84+WO5+ziCTsTUZASAToz3RdunTD+vQcHj0GqNTPAHK63sf bAB2I0BslZkXkY1RLb/YhuA6E7JyEd2pilZOrIuBGl/5q2qSakgnAVFWFBR/DO27JuAksYnq +aH8vI0xGvwn75KqSk4UzAkDzWSmO4ZHuahKtQgZNsMYV+PGayRBX9b9zbldzopoLBdqHc4n jQARAQABwsF8BBgBCgAmAhsMFiEEqUDUNJksLo6ZED1QIk+n58yCpmQFAmfIHFQFCRYU6J8A CgkQIk+n58yCpmS2PA//bqN1LfcotmArgElsa+0EGZSQlYgK48pm8WAeTXTngudP9IJ4SuKY HR5RNjHcBeqN+Me0zxRqYzRb8nGanHEkDyf4Im8DQM8d6vbyU+FcPmG4skud4kgS1zMHnlVd SXfSIwKC/hKgdHG8aBV7545Lz9X6Iohea+94wneD0aw/hqF+QWewGZhWJriWAZtvEkzNjQOi 4U9F/trLten/x7bpphDSnDMKJtITbtzATT1Dq7o7VpIUK1nCTQALMuMjKCdi8OdU/+V+R3O4 0PXWvX8qrvqYapVbZ+9KqT74FsuB0Ya9uXwgBF2Q6cRuETZk5vqaqKxzqoQZCO8AOz/58j6O 2RHNy/mZEN+7tJ5Tsq42zVJ4jxsT8b9YplavCMsnBgDeRWhcbYhCyttoL7nYISyWg4kQYZ/P wIV3OuNv2f8iKYsxNsRuClOAF82+gvqOy1/1pprFjy8uo2pkoOrb63aOP3vO5VHnRKgra6dq NcaZ+c6J4H+nEJGi2SkHAUJz5oBzuThvPudLvPA/SK8sKoM01IRxSihev/S/5WLazXB1PGem OCbvzC1IjWJJraxiDJ5IygokapUa2RP7+WBR22skQ3SSl6G107QgWKSyTOGWEaRmV53vxQLV jXuCmzSSasTL60zq5yGrT4/DYQVSNEUiUbG4pYekxJujNeEDkUlky0Y= In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: fe356qq6f5te86cw18hhjqrg7zfmbqpu X-Rspamd-Queue-Id: 8747B80006 X-HE-Tag: 1788859942-889661 X-HE-Meta: U2FsdGVkX194ty2u1gaqk5/jakPUD6cNCFjtV+f+UTE16UKI0wz2pN3oNy86Rsilu52ei+gtfZ4oC0QUJ1L0EtNmlnTKmxAnM/Q45T89lpHFPKdLRn5tC0EEsTwF8L7jPLHAPDzXPoLoHS3LmTFR3Q3yeDdCCcBZLaw+htYMrsUMMliaH0yO/4pNeYxUm3m/7qS1X+QhOsmB3Jf4IL8y2niOrYQTxkE01W+5mXgYFtHLXtMRP8OkRY9YCI+TKIiRah9rspcrCFYtfgsMs68jBNU/F9zp856cLvXw2dMaHu76vm9SbDDkjuiVlvEX3G9bWp7qXOV3JzTgZ9DVMwCXqqKHVh2Qpi/b8dOfrBR/wkMZuW9p5uBbn8xGQtmH+2nVZAthzweFhN4QOmuZZ3CHN9ogDc4dJ4jRZqWOBomC+DB7PxrO2xxnlNvSS/IimkF2OF7UKFceh4hCbFkEUFxpDYolgpHmiCrDMpJlr7xKRXE8IHF/8gZ2HF94CA8h2dQNJs7i3oi/vyHF8dDc4VDETMKZ2bPCj6utwJwY1N02kRkx/cAtBpQlJyWZQOW9wd9SUuR0x+f7ylE256v0SNb1rrVRwC+8CZnxAm9nDQosFwToBhPw7/y7LQV/IkSxjbxuRg7Mv7OEE4RQ0rdEG6RQzYONmJ7cu/DjJA7tigy+R2R1hi/k4NjnvPmhEQKwUb6OOC0PAgr1IFqaZ+y2o73Yb2nodzkbtMYwsFLfrlLb0jMhGwJ+S3tWEve3JWKC+WP0zSc4XokM3jPd+YxTvFwfKBBUvs6krkJHRMfme5nUybZUitZi+iEirJXXcb+u3+lDQcYo1E3HS7zwpIZKg2hWw+uVn8id74dfQZnhAl8u6m1YjXxf/QxAMZ7hRPQHdAj8fh5FPknjyREhrPDZNptYNQeroV/eZ4vBgoum66iugZ8Aji1BDNM1WKHmOon0rC42SPkzcBLy0S/7jZENtV9 o8vEURWz 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/8/26 11:25, Lorenzo Stoakes (ARM) wrote: > On Mon, Sep 07, 2026 at 09:15:02PM -0700, syzbot wrote: >> Hello, >> >> syzbot has tested the proposed patch and the reproducer did not trigger any issue: >> >> Reported-by: syzbot+c6879dc677a017f0a21b@syzkaller.appspotmail.com >> Tested-by: syzbot+c6879dc677a017f0a21b@syzkaller.appspotmail.com > > Yup there we are :) > > Why is this constantly duplicating I wonder... Going back to the first mail: syzbot found the following issue on: HEAD commit: 5445d6419962 arm64: Don't read GMID_EL1 when MTE is disabled git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci We can see it's based from 7.3-rc1: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?h=for-kernelci And since the problem was introduced there, all kinds of development trees for 7.4 (or even pending hotfixes for 7.3) based on 7.3-rc1 will now have it. I guess syzbot has to learn to recognize it's a known problem and ignore it, or have some repo of known important fixes merged after rc1 it applies on top of such development trees, as they generaly won't be rebased to later rcs. > >> >> Tested on: >> >> commit: 35b0fb39 mm/mremap: reset unfaulted VMA page offset fo.. >> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git >> console output: https://syzkaller.appspot.com/x/log.txt?x=15e13af9580000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=56ed23170c168d4c >> dashboard link: https://syzkaller.appspot.com/bug?extid=c6879dc677a017f0a21b >> compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 >> userspace arch: arm64 >> >> Note: no patches were applied. >> Note: testing is done by a robot and is best-effort only. > > -- > Cheers, Lorenzo