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AJvYcCV5zaaeUY4eiytDUmaxeDk6K1zdTfyngnoN/11k93aQzu+LFBJSCKts2cvE3mJQ788uLsAHpJTuAA==@kvack.org X-Gm-Message-State: AOJu0Ywx/osVJ5pOQE+bNBynk3Ju7FLVvwUbInDgq1bUYq8xyMAiJusK pOFTYZ3EsLg9kCgb0kq4rxr/1waNA2TX349JF8wZLu1ds/Dr/w2M7NYwBFBuke74nw+9WUjwYQd ZtKuRX+Ml7MAVzPuvmdWEtvhaJUWJjZOc0UMXyt1Uh5yYUFabTWnaDSrNmx4= X-Google-Smtp-Source: AGHT+IES9W9i5BDPnigPWHyPwFFVK8HYOg02PCDU4wDRx1cddarSx3N77jLS8b/A0OljZ6ZaxmpeRG+Ewn6Lzi0PSQIKRrS28joC MIME-Version: 1.0 X-Received: by 2002:a05:6e02:148f:b0:3f0:78c3:8fc5 with SMTP id e9e14a558f8ab-3f078c392cdmr43149115ab.5.1756331731412; Wed, 27 Aug 2025 14:55:31 -0700 (PDT) Date: Wed, 27 Aug 2025 14:55:31 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68af7ed3.a00a0220.2929dc.0004.GAE@google.com> Subject: [syzbot] [mm?] [usb?] WARNING in __alloc_skb (4) 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, linux-usb@vger.kernel.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" X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 4C76A40007 X-Stat-Signature: nt3p636mhag4b1cqesdqmaobpuonmwmf X-Rspam-User: X-HE-Tag: 1756331732-85236 X-HE-Meta: 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https://syzkaller.appspot.com/bug?extid=5a2250fd91b28106c37b compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14c94858580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=108ea7bc580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/63178c6ef3f8/disk-7fa4d8dc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c5c27b0841e0/vmlinux-7fa4d8dc.xz kernel image: https://storage.googleapis.com/syzbot-assets/9a8832715cca/bzImage-7fa4d8dc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5a2250fd91b28106c37b@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: mm/page_alloc.c:5124 at __alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5124, CPU#0: dhcpcd/5530 Modules linked in: CPU: 0 UID: 0 PID: 5530 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5124 Code: 74 10 4c 89 e7 89 54 24 0c e8 f4 11 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 fe aa b7 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 RSP: 0018:ffffc90000007780 EFLAGS: 00010246 RAX: ffffc90000007700 RBX: 0000000000000014 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900000077e8 RBP: ffffc90000007870 R08: ffffc900000077e7 R09: 0000000000000000 R10: ffffc900000077c0 R11: fffff52000000efd R12: 0000000000000000 R13: 1ffff92000000ef4 R14: 0000000000060820 R15: dffffc0000000000 FS: 00007f4fd75a9740(0000) GS:ffff8881257c4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffebb07e018 CR3: 000000001dadc000 CR4: 00000000003526f0 Call Trace: alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416 ___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:4306 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4337 __do_kmalloc_node mm/slub.c:4353 [inline] __kmalloc_node_track_caller_noprof+0x34d/0x4a0 mm/slub.c:4384 kmalloc_reserve+0x1b8/0x290 net/core/skbuff.c:608 __alloc_skb+0x142/0x2d0 net/core/skbuff.c:669 __netdev_alloc_skb+0x108/0x970 net/core/skbuff.c:733 rx_submit+0x100/0xab0 drivers/net/usb/usbnet.c:-1 rx_alloc_submit+0xa6/0x140 drivers/net/usb/usbnet.c:1538 usbnet_bh+0x9a5/0xd70 drivers/net/usb/usbnet.c:1607 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 bh_worker+0x2b1/0x600 kernel/workqueue.c:3579 tasklet_action+0xc/0x70 kernel/softirq.c:854 handle_softirqs+0x283/0x870 kernel/softirq.c:579 do_softirq+0xec/0x180 kernel/softirq.c:480 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407 __dev_open+0x694/0x880 net/core/dev.c:1690 __dev_change_flags+0x1ea/0x6d0 net/core/dev.c:9549 netif_change_flags+0x88/0x1a0 net/core/dev.c:9612 dev_change_flags+0x130/0x260 net/core/dev_api.c:68 devinet_ioctl+0xbb4/0x1b50 net/ipv4/devinet.c:1200 inet_ioctl+0x3c0/0x4c0 net/ipv4/af_inet.c:1001 sock_do_ioctl+0xd9/0x300 net/socket.c:1238 sock_ioctl+0x576/0x790 net/socket.c:1359 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 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: 0033:0x7f4fd76a9378 Code: 00 00 48 8d 44 24 08 48 89 54 24 e0 48 89 44 24 c0 48 8d 44 24 d0 48 89 44 24 c8 b8 10 00 00 00 c7 44 24 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 07 89 d0 c3 0f 1f 40 00 48 8b 15 49 3a 0d RSP: 002b:00007ffc26f40168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 00007f4fd76a9378 RDX: 00007ffc26f50360 RSI: 0000000000008914 RDI: 0000000000000016 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc26f60500 R13: 00007f4fd75a96c8 R14: 0000000000000028 R15: 0000000000008914 --- 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