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AJvYcCXuWga/OmcuUaPt8wo9c0sd9b3Wv6LdTg66b40Ok1uf+DMxhhHHvNMP9s49ypgAPD8zdt7REdnAVEeSHf8=@vger.kernel.org X-Gm-Message-State: AOJu0YxsSx0Yp1Havj5lxmZghi0s+6gZ65kFN9fAkDXgM6SnNqyv/E+q pDJzK6qrFEUEttZfQ6GtxlDBL/EcOJQA5ILR37AuKlSoaAEgnAyxlJo3RMJcLui7MWHLUNqmELR b8oIMe2P5F5/tB5u2CK0iTafd7KfxPY49HGnxtkHiVVYCMHOnRmS8ehh/cjA= X-Google-Smtp-Source: AGHT+IGSIx4R/X+4T/h9VAdXT+ZzvTHIkrzU8hH3yNfGn1bm9RGGyFg81lGOQFSxvhErxsCtiLjf5GstT11RlozeYZbsRr+x/HDB Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:148f:b0:430:c394:15a3 with SMTP id e9e14a558f8ab-4320f841926mr20056985ab.22.1761599912043; Mon, 27 Oct 2025 14:18:32 -0700 (PDT) Date: Mon, 27 Oct 2025 14:18:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68ffe1a8.050a0220.3344a1.03a0.GAE@google.com> Subject: [syzbot] [mm?] WARNING in raw_alloc_io_data From: syzbot To: akpm@linux-foundation.org, apopple@nvidia.com, byungchul@sk.com, david@redhat.com, gourry@gourry.net, joshua.hahnjy@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, matthew.brost@intel.com, rakie.kim@sk.com, syzkaller-bugs@googlegroups.com, ying.huang@linux.alibaba.com, ziy@nvidia.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: dcb6fa37fd7b Linux 6.18-rc3 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=160597e2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=609c87dcb0628493 dashboard link: https://syzkaller.appspot.com/bug?extid=a894fe5447d0543e89c9 compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11af27e2580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11c2d614580000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-dcb6fa37.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/61176fd888a1/vmlinux-dcb6fa37.xz kernel image: https://storage.googleapis.com/syzbot-assets/84e7e9924c22/bzImage-dcb6fa37.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a894fe5447d0543e89c9@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 3 PID: 6091 at mm/page_alloc.c:5159 __alloc_frozen_pages_noprof+0x309/0x2470 mm/page_alloc.c:5159 Modules linked in: CPU: 3 UID: 0 PID: 6091 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__alloc_frozen_pages_noprof+0x309/0x2470 mm/page_alloc.c:5159 Code: f0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 83 fe 0a 0f 86 0c fe ff ff 80 3d d4 63 52 0e 00 75 0b c6 05 cb 63 52 0e 01 90 <0f> 0b 90 45 31 f6 eb 81 4d 85 f6 74 22 44 89 fa 89 ee 4c 89 f7 e8 RSP: 0018:ffffc9000371f9f8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000014 RDI: 0000000000040cc0 RBP: 0000000000000014 R08: 0000000000000005 R09: 0000000000000009 R10: 0000000000000014 R11: 0000000000000001 R12: 0000000000040cc0 R13: 1ffff920006e3f55 R14: ffffffff9ab2c464 R15: 0000000000000014 FS: 000055557bf92500(0000) GS:ffff8880d6d0a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f84d9710300 CR3: 0000000032452000 CR4: 0000000000352ef0 Call Trace: alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416 ___kmalloc_large_node+0xed/0x160 mm/slub.c:5583 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5614 __do_kmalloc_node mm/slub.c:5630 [inline] __kmalloc_noprof.cold+0xc/0x62 mm/slub.c:5654 kmalloc_noprof include/linux/slab.h:961 [inline] raw_alloc_io_data drivers/usb/gadget/legacy/raw_gadget.c:673 [inline] raw_alloc_io_data+0x12c/0x1a0 drivers/usb/gadget/legacy/raw_gadget.c:659 raw_ioctl_ep0_read drivers/usb/gadget/legacy/raw_gadget.c:776 [inline] raw_ioctl+0x1397/0x2c30 drivers/usb/gadget/legacy/raw_gadget.c:1313 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f84d938efc9 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:00007ffe768729f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f84d95e5fa0 RCX: 00007f84d938efc9 RDX: 0000200000000080 RSI: 00000000c0085504 RDI: 0000000000000006 RBP: 00007f84d9411f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f84d95e5fa0 R14: 00007f84d95e5fa0 R15: 0000000000000003 --- 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