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AJvYcCXgnJRXCBD2oBznpDKeb3lDQExtBwxVhHYnghXM5YZZGD0mNCdD2S210N8wAgbm92nVoC7Y4pM8UA==@vger.kernel.org X-Gm-Message-State: AOJu0YxAgHIfI1BhGMswjMAc9h3i4eCzkAKythYkLf9UvxCCUb7xJORT 2H0J5xX/4iag+t/YjnR6CtWMkAYTMJyWVfakrKpB+XUl3hZfFRJd/nZaDVi1zsAplYSlRdYx4ef 0+ywOVYk/hU8qX04kJQqp6hHOCgusb+gALowgnUKGhtypMvRqPn96Ho4zfwg= X-Google-Smtp-Source: AGHT+IHKMIXCfa3298eqbkMurUnvDMP+iByaLckTqP5ryvDUhOd3YSQWbpKmztxDjFKTQPVkMPqjCGmDHiGt8BMKFFB2xCZxIMJr Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1aa1:b0:3f6:56a4:1e13 with SMTP id e9e14a558f8ab-3fd806a3222mr186081115ab.1.1757452230440; Tue, 09 Sep 2025 14:10:30 -0700 (PDT) Date: Tue, 09 Sep 2025 14:10:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68c097c6.050a0220.3c6139.000c.GAE@google.com> Subject: [syzbot] [io-uring?] WARNING in __vmap_pages_range_noflush (2) From: syzbot To: axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: be5d4872e528 Add linux-next specific files for 20250905 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1458a962580000 kernel config: https://syzkaller.appspot.com/x/.config?x=114fb6eb337a294b dashboard link: https://syzkaller.appspot.com/bug?extid=42d478f812698fed9f41 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1510d312580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1258a962580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/fb814704342a/disk-be5d4872.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4f4366b3c12b/vmlinux-be5d4872.xz kernel image: https://storage.googleapis.com/syzbot-assets/7b2472ced6f9/bzImage-be5d4872.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+42d478f812698fed9f41@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: mm/vmalloc.c:538 at vmap_pages_pte_range mm/vmalloc.c:538 [inline], CPU#0: syz.0.17/6034 WARNING: mm/vmalloc.c:538 at vmap_pages_pmd_range mm/vmalloc.c:569 [inline], CPU#0: syz.0.17/6034 WARNING: mm/vmalloc.c:538 at vmap_pages_pud_range mm/vmalloc.c:587 [inline], CPU#0: syz.0.17/6034 WARNING: mm/vmalloc.c:538 at vmap_pages_p4d_range mm/vmalloc.c:605 [inline], CPU#0: syz.0.17/6034 WARNING: mm/vmalloc.c:538 at vmap_small_pages_range_noflush mm/vmalloc.c:627 [inline], CPU#0: syz.0.17/6034 WARNING: mm/vmalloc.c:538 at __vmap_pages_range_noflush+0xdf1/0xf30 mm/vmalloc.c:656, CPU#0: syz.0.17/6034 Modules linked in: CPU: 0 UID: 0 PID: 6034 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:vmap_pages_pte_range mm/vmalloc.c:538 [inline] RIP: 0010:vmap_pages_pmd_range mm/vmalloc.c:569 [inline] RIP: 0010:vmap_pages_pud_range mm/vmalloc.c:587 [inline] RIP: 0010:vmap_pages_p4d_range mm/vmalloc.c:605 [inline] RIP: 0010:vmap_small_pages_range_noflush mm/vmalloc.c:627 [inline] RIP: 0010:__vmap_pages_range_noflush+0xdf1/0xf30 mm/vmalloc.c:656 Code: eb 7b e8 92 1e ad ff eb 2f e8 8b 1e ad ff eb 6d e8 84 1e ad ff 31 ed eb 64 e8 7b 1e ad ff 90 0f 0b 90 eb 14 e8 70 1e ad ff 90 <0f> 0b 90 eb 09 e8 65 1e ad ff 90 0f 0b 90 bd f4 ff ff ff 44 8b 74 RSP: 0018:ffffc90003dff950 EFLAGS: 00010293 RAX: ffffffff8213e750 RBX: dffffc0000000000 RCX: ffff888030da3c80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8213e9c5 R10: fffff520014d3800 R11: ffffed10170c7fa9 R12: ffff888028890828 R13: ffff88802e700d08 R14: 0000000000000000 R15: 1ffff11005ce01a1 FS: 0000555592944500(0000) GS:ffff8881257ba000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32163fff CR3: 0000000077ab6000 CR4: 00000000003526f0 Call Trace: vmap_pages_range_noflush mm/vmalloc.c:681 [inline] vmap_pages_range mm/vmalloc.c:701 [inline] vmap+0x1ca/0x310 mm/vmalloc.c:3515 io_region_init_ptr+0x24d/0x350 io_uring/memmap.c:125 io_create_region+0x3a4/0x480 io_uring/memmap.c:228 io_allocate_scq_urings+0x2b0/0x870 io_uring/io_uring.c:3626 io_uring_create+0x591/0xba0 io_uring/io_uring.c:3867 io_uring_setup io_uring/io_uring.c:3963 [inline] __do_sys_io_uring_setup io_uring/io_uring.c:3997 [inline] __se_sys_io_uring_setup+0x264/0x270 io_uring/io_uring.c:3988 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3093f8ebe9 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:00007fffcd7235a8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 00007f30941c5fa0 RCX: 00007f3093f8ebe9 RDX: 0000000000000000 RSI: 0000200000000040 RDI: 0000000000007688 RBP: 0000200000000040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000007688 R15: 0000000000000000 --- 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 syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. 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