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Wed, 22 Apr 2026 02:08:35 -0700 (PDT) Date: Wed, 22 Apr 2026 02:08:35 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69e89013.a00a0220.17a17.0029.GAE@google.com> Subject: [syzbot] Monthly mm report (Apr 2026) From: syzbot To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: u3es4u7pc75ij6o53b39njt7mmg87khr X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 43EA580008 X-HE-Tag: 1776848916-663272 X-HE-Meta: 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 8Ab81AUP 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 tkdMdG/a Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello mm maintainers/developers, This is a 31-day syzbot report for the mm subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/mm During the period, 7 new issues were detected and 1 were fixed. In total, 130 issues are still open and 369 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 24253 Yes WARNING in path_noexec (2) https://syzkaller.appspot.com/bug?extid=a9391462075ffb9f77c6 <2> 7462 Yes WARNING in ext4_dirty_folio https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1 <3> 1919 Yes kernel BUG in __filemap_add_folio https://syzkaller.appspot.com/bug?extid=4d3cc33ef7a77041efa6 <4> 1762 Yes KASAN: use-after-free Read in copy_folio_from_iter_atomic (2) https://syzkaller.appspot.com/bug?extid=6cc93ec9a4035badb85f <5> 976 No KCSAN: data-race in __filemap_remove_folio / folio_mapping (2) https://syzkaller.appspot.com/bug?extid=606f94dfeaaa45124c90 <6> 927 No possible deadlock in lock_mm_and_find_vma (4) https://syzkaller.appspot.com/bug?extid=709f5ab0e03871dec50a <7> 701 Yes INFO: rcu detected stall in addrconf_rs_timer (6) https://syzkaller.appspot.com/bug?extid=fecf8bd19c1f78edb255 <8> 689 Yes INFO: task hung in _vm_unmap_aliases (3) https://syzkaller.appspot.com/bug?extid=fe8f8efd070d727de971 <9> 571 Yes INFO: rcu detected stall in sys_openat (3) https://syzkaller.appspot.com/bug?extid=23d96fb466ad56cbb5e5 <10> 529 Yes INFO: rcu detected stall in x64_sys_call https://syzkaller.appspot.com/bug?extid=65203730e781d98f23a0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. To disable reminders for individual bugs, reply with the following command: #syz set no-reminders To change bug's subsystems, reply with: #syz set subsystems: new-subsystem You may send multiple commands in a single email message.