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Mon, 30 Sep 2024 07:33:02 -0700 (PDT) Date: Mon, 30 Sep 2024 07:33:02 -0700 In-Reply-To: <000000000000b7b11a061ab49122@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66fab69e.050a0220.6bad9.003d.GAE@google.com> Subject: Re: [syzbot] [mm?] WARNING in __page_table_check_ptes_set (2) From: syzbot To: akpm@linux-foundation.org, david@redhat.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, pasha.tatashin@soleen.com, peterx@redhat.com, syzkaller-bugs@googlegroups.com, usama.anjum@collabora.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 3395DC0018 X-Stat-Signature: ctittmpgcck54qzss1941sh4qqy9pysm X-Rspam-User: X-HE-Tag: 1727706785-798974 X-HE-Meta: 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 TfMZqj+y 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 5KHplYR7 DgCCB0w/yJv2GZc6GvNHO/vDFdjMdknOL56z3ad2hSEEz6srs1LS0EmFdb96s8FZX0mvnLrC+7fJhQrGamyhyJAf5TOQksrVY9pJPWO0i71i/sGMeIkJrgXLzEDwtFEcx/938wssoJByBFcWaMIAjWaaF5Vq6aVQ91qScgGU/PamvKtp/cM6HI01HBZGdYgq X-Bogosity: Ham, tests=bogofilter, spamicity=0.000344, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: syzbot has bisected this issue to: commit a1b92a3f14984c96ace381f204b5d72c0805296e Author: Muhammad Usama Anjum Date: Fri Feb 17 10:55:58 2023 +0000 mm/userfaultfd: support WP on multiple VMAs bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15d9cea9980000 start commit: 3efc57369a0c Merge tag 'for-linus' of git://git.kernel.org.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=17d9cea9980000 console output: https://syzkaller.appspot.com/x/log.txt?x=13d9cea9980000 kernel config: https://syzkaller.appspot.com/x/.config?x=a4fcb065287cdb84 dashboard link: https://syzkaller.appspot.com/bug?extid=0b56d6ed0d0c0c9a79dc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17a7de80580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b67507980000 Reported-by: syzbot+0b56d6ed0d0c0c9a79dc@syzkaller.appspotmail.com Fixes: a1b92a3f1498 ("mm/userfaultfd: support WP on multiple VMAs") For information about bisection process see: https://goo.gl/tpsmEJ#bisection