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AJvYcCVmz+LjUbDe1N6qYj4RiXrhbameYCGWtNMdnAVtcIKiMC8WeXZd4wIb4ejM2kzjqWTSkN666dM=@vger.kernel.org X-Gm-Message-State: AOJu0Yzs/RtxdrAR2LsrguVsKc+3cXNj7ZdmTvnghXfK/0CyyZBObcBG +9v18t9RvN+2OAA6BMKk7HwO0Oa1KAVO2RjC8Gim2sfR2iGaemN5h5dfpA+3LBkPo1OxvSdQtXA iF9oCQtgNpO7CSA2LerZwqN5Tc1gH/VEEIgTJ8P5F/wMpZV7yDY7MCmZEmQ0= X-Google-Smtp-Source: AGHT+IG7G6T3Hen13lkGA8rw46Ci0BTT+qn6Zc2NlE4Bh+pJMOxQZ+ETXsSn5SZdkhQrKFYELYTi8O0kF1wYhens5JFzSG9VE3Xp Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1607:b0:65b:81eb:ae5c with SMTP id 006d021491bc7-65b81ebb6dbmr279838eaf.8.1765879595628; Tue, 16 Dec 2025 02:06:35 -0800 (PST) Date: Tue, 16 Dec 2025 02:06:35 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69412f2b.a70a0220.104cf0.034b.GAE@google.com> Subject: [syzbot] [net?] [usb?] memory leak in rtl8150_set_multicast From: syzbot To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, petkan@nucleusys.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: d358e5254674 Merge tag 'for-6.19/dm-changes' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11e431c2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9a0268003e02068d dashboard link: https://syzkaller.appspot.com/bug?extid=8dd915c7cb0490fc8c52 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=12dd661a580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/e79f317bb571/disk-d358e525.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cf9e2849af10/vmlinux-d358e525.xz kernel image: https://storage.googleapis.com/syzbot-assets/73d80a967038/bzImage-d358e525.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8dd915c7cb0490fc8c52@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff888127d51010 (size 16): comm "dhcpcd", pid 5479, jiffies 4294951443 hex dump (first 16 bytes): 40 05 30 01 00 00 02 00 9e 00 00 00 00 00 00 00 @.0............. backtrace (crc 5546a3be): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] __kmalloc_cache_noprof+0x3b2/0x570 mm/slub.c:5771 kmalloc_noprof include/linux/slab.h:957 [inline] async_set_registers drivers/net/usb/rtl8150.c:192 [inline] rtl8150_set_multicast+0x7a/0x1c0 drivers/net/usb/rtl8150.c:679 __dev_set_rx_mode+0xc5/0x120 net/core/dev.c:9655 dev_set_rx_mode net/core/dev.c:9661 [inline] __dev_open+0x23f/0x3c0 net/core/dev.c:1691 __dev_change_flags+0x30c/0x380 net/core/dev.c:9734 netif_change_flags+0x35/0x90 net/core/dev.c:9797 dev_change_flags+0x64/0xf0 net/core/dev_api.c:68 devinet_ioctl+0x5bf/0xd30 net/ipv4/devinet.c:1199 inet_ioctl+0x27c/0x2b0 net/ipv4/af_inet.c:1009 sock_do_ioctl+0x84/0x1a0 net/socket.c:1254 sock_ioctl+0x149/0x480 net/socket.c:1375 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+0xf4/0x140 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff8881282bae40 (size 192): comm "dhcpcd", pid 5479, jiffies 4294951443 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 58 ae 2b 28 81 88 ff ff ........X.+(.... backtrace (crc d110b1b3): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4958 [inline] slab_alloc_node mm/slub.c:5263 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_noprof+0x3e0/0x660 mm/slub.c:5669 kmalloc_noprof include/linux/slab.h:961 [inline] usb_alloc_urb+0x66/0xa0 drivers/usb/core/urb.c:75 async_set_registers drivers/net/usb/rtl8150.c:195 [inline] rtl8150_set_multicast+0x97/0x1c0 drivers/net/usb/rtl8150.c:679 __dev_set_rx_mode+0xc5/0x120 net/core/dev.c:9655 dev_set_rx_mode net/core/dev.c:9661 [inline] __dev_open+0x23f/0x3c0 net/core/dev.c:1691 __dev_change_flags+0x30c/0x380 net/core/dev.c:9734 netif_change_flags+0x35/0x90 net/core/dev.c:9797 dev_change_flags+0x64/0xf0 net/core/dev_api.c:68 devinet_ioctl+0x5bf/0xd30 net/ipv4/devinet.c:1199 inet_ioctl+0x27c/0x2b0 net/ipv4/af_inet.c:1009 sock_do_ioctl+0x84/0x1a0 net/socket.c:1254 sock_ioctl+0x149/0x480 net/socket.c:1375 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+0xf4/0x140 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xa4/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF --- 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