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Sat, 12 Apr 2025 11:46:22 -0700 (PDT) Date: Sat, 12 Apr 2025 11:46:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67fab4fe.050a0220.2c5fcf.0011.GAE@google.com> Subject: [syzbot] [mm?] WARNING in do_wp_page From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: CB0DD180006 X-Stat-Signature: hruxrq9zh8kpi19gtk3msmuhq9gud7up X-Rspam-User: X-HE-Tag: 1744483583-832357 X-HE-Meta: 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 j7uPGuWU KjUmLXYzDdwHe6kOKRqyo2pJdeihOF1cd5+GetVSSur+9/WXHUC2/6hn7SL4WAykJjiYTpYAHXJxOGnp0Swbex4auREq8/j3bEI5TvkBScgaEBmzOQVeYGXzuZxUWggUP6Tv/98tzvCAgjfnqHW7Issdv3+OfWlvzE6NnFJDrkLEdE+s3YoKxRAvXzNpm/6RFQq5ytwtUXutAVTK+VFHWKPeQ+O75yQARoXRVT6yd5pPvoy7/gX/O+PT9cxPNFTAOLpge4YLGYRqBWKIwP0o++82SGbvOoA/ZNkjX+3fnCfhXM//61TsMt5/FBkvWM3xFk0hP6GhpMePIFbep/2yvb5iS4Z/55Qx7F5oXxN+syWpFAcks0BmfC8TAVz8owOU6lV+al1inUmqreuDQFZgR44c/44eFwfq85TKMGASGxV5XsJrdPeQFk3lP7P66B8BCriIkla/qn7U4dG44kBQCeUFJW38xAWKK0OMCzaSfiB1Yg48+/iWqfRV8WjddexQyG3W1/+Wp73y+wg/9cbIlp4Pf27fLg9c9GUuwHOBaSSn3KiAqs+JcK29ts//4RvrKCaVObIpRuaDXGds4NhCWAYmcpJAN5EkIxmzP2InmNedjKdgtvSpUa4lkmEfhvY7fNbcoLG439/yI9bGijFQaXCE780aSGCOghTKMCjaTnv5T19uezAHe5L7m8uvyabERRJfTsRg3w04Keqru1lfa+FRm2R5LWWCAA3gnluEednnWJCL6QbhQZ7SyqrN0cQQbUlDo8fJ1ALR1QTs1ht2lt5nrQw3C3ArYrPjO3mBsgzgushqdElX1QWjZug6H/7I96kE7fm/W1y34MoiqfiJ9BILxjYgHbm/shxKeTCAI5JkTaOsvDzGFL+B0X2jgX7DYmHvMDBXV/GftdlbKly55h2cXe2DX0/52Ht+D5iCnPzJoOfsx7RwyH1q+UuABr2gO8e5Td1/N+o5jYos6EU4cUyA1j18S UPZmippk 2lW0D8aqeZhjlNzN37m1fX5j+Zs3vfvrYPGUO9KpwJQwT6eu+SdDNI3bA+XldVhMg2FSZn38jdAt2t3mQLnC7wUoqF2YQfCzOYQns8Qus4JysV6hgzb6wuwZzdIqv6om8GLFSU0lkAMGY/Vi73K8GQenyxZxB8abG78PzYMBXw4lPXzAgo6tI8H5PIRyQLyvB4tdUYpk6iiqmygZsdDVOSQnnOafV3rw8Z/hbGRRxv272JJa839DwJweGSGw/0nRCTUXEpB8hGvu+7i1qesX/x8L3DQdbN6BVRQXp97ZnojYmbnqjOnYKSOZV+sGthtcLAKh+UdFQBQ1ISqYxk32PY8E2JSiMxSzw1ZWUk+iDiE134ORUUed3onl0RfXzuB6djXaafwx3IWa00kjaihRgZpzk3Xi8RGo 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: Hello, syzbot found the following issue on: HEAD commit: 0af2f6be1b42 Linux 6.15-rc1 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1766323f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=f175b153b655dbb3 dashboard link: https://syzkaller.appspot.com/bug?extid=5e8feb543ca8e12e0ede compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f1d71d1bf77d/disk-0af2f6be.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7f1638f065da/vmlinux-0af2f6be.xz kernel image: https://storage.googleapis.com/syzbot-assets/9b3e49834705/bzImage-0af2f6be.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5e8feb543ca8e12e0ede@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7165 at mm/memory.c:3738 __wp_can_reuse_large_anon_folio mm/memory.c:3738 [inline] WARNING: CPU: 0 PID: 7165 at mm/memory.c:3738 wp_can_reuse_anon_folio mm/memory.c:3788 [inline] WARNING: CPU: 0 PID: 7165 at mm/memory.c:3738 do_wp_page+0x4c62/0x59f0 mm/memory.c:3918 Modules linked in: CPU: 0 UID: 0 PID: 7165 Comm: syz.3.280 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__wp_can_reuse_large_anon_folio mm/memory.c:3738 [inline] RIP: 0010:wp_can_reuse_anon_folio mm/memory.c:3788 [inline] RIP: 0010:do_wp_page+0x4c62/0x59f0 mm/memory.c:3918 Code: 48 89 ef e8 50 c3 ea ff e9 62 b8 ff ff e8 c6 e0 b4 ff 48 c7 c6 20 43 9b 8b 4c 89 e7 e8 f7 a0 fc ff 90 0f 0b e8 af e0 b4 ff 90 <0f> 0b 90 e9 df ed ff ff e8 a1 e0 b4 ff 48 c7 c6 60 46 9b 8b 48 89 RSP: 0018:ffffc900039f77e0 EFLAGS: 00010287 RAX: 0000000000041ec0 RBX: ffffc900039f7a00 RCX: ffffc9000d0c6000 RDX: 0000000000080000 RSI: ffffffff82065c61 RDI: 0000000000000005 RBP: ffffea0001320000 R08: 0000000000000005 R09: 00000000ffffffff R10: 0000000000000000 R11: 0000000000000000 R12: ffff888012935dc0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f57215806c0(0000) GS:ffff8881249b9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000001e000 CR3: 000000006cd88000 CR4: 0000000000350ef0 Call Trace: handle_pte_fault mm/memory.c:6013 [inline] __handle_mm_fault+0x1ada/0x2a40 mm/memory.c:6140 handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309 faultin_page mm/gup.c:1193 [inline] __get_user_pages+0x771/0x36f0 mm/gup.c:1491 populate_vma_page_range+0x278/0x3a0 mm/gup.c:1929 __mm_populate+0x1d8/0x380 mm/gup.c:2032 do_mlock+0x448/0x810 mm/mlock.c:655 __do_sys_mlock mm/mlock.c:663 [inline] __se_sys_mlock mm/mlock.c:661 [inline] __x64_sys_mlock+0x59/0x80 mm/mlock.c:661 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f572078d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5721580038 EFLAGS: 00000246 ORIG_RAX: 0000000000000095 RAX: ffffffffffffffda RBX: 00007f57209a5fa0 RCX: 00007f572078d169 RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000200000000000 RBP: 00007f572080e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f57209a5fa0 R15: 00007fffd504a2f8 --- 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. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup