Hello, syzbot found the following issue on: HEAD commit: 0477e928 Linux 5.10-rc7 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14ef3f45500000 kernel config: https://syzkaller.appspot.com/x/.config?x=4305fa9ea70c7a9f dashboard link: https://syzkaller.appspot.com/bug?extid=215ecdbae76bb8c36b7e compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1207c05b500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10b7b613500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+215ecdbae76bb8c36b7e@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff888110d22380 (size 96): comm "kworker/0:3", pid 4912, jiffies 4294942219 (age 8.820s) hex dump (first 32 bytes): 40 89 17 12 81 88 ff ff 00 00 00 00 00 00 00 00 @............... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000706edd19>] kmalloc include/linux/slab.h:552 [inline] [<00000000706edd19>] kzalloc include/linux/slab.h:664 [inline] [<00000000706edd19>] pcan_usb_pro_init+0x120/0x280 drivers/net/can/usb/peak_usb/pcan_usb_pro.c:856 [<0000000025ad9e43>] peak_usb_create_dev drivers/net/can/usb/peak_usb/pcan_usb_core.c:850 [inline] [<0000000025ad9e43>] peak_usb_probe+0x389/0x490 drivers/net/can/usb/peak_usb/pcan_usb_core.c:948 [<0000000064acbdae>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<0000000032f135d3>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000e1ce8490>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<00000000bfd26436>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<00000000cc4dd83e>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000f1b1aa05>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<0000000034abf9f3>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000ade05bb4>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<00000000a596bcb5>] usb_set_configuration+0x9de/0xb90 drivers/usb/core/message.c:2159 [<0000000008726818>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000c9e87a33>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<0000000032f135d3>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000e1ce8490>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<00000000bfd26436>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
