Hello, syzbot found the following issue on: HEAD commit: 3d5e28bf Merge branch 'stable/for-linus-5.10-rc2' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10bae3aa500000 kernel config: https://syzkaller.appspot.com/x/.config?x=a3f13716fa0212fd dashboard link: https://syzkaller.appspot.com/bug?extid=e1de8986786b3722050e compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1781dd4e500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1636b181500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e1de8986786b3722050e@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff88810d626800 (size 2048): comm "kworker/0:1", pid 7, jiffies 4294946031 (age 8.260s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 54 65 72 72 61 54 65 63 ........TerraTec 2f 71 61 6e 75 20 55 53 42 32 2e 30 20 48 69 67 /qanu USB2.0 Hig backtrace: [<000000001868ec69>] kmalloc include/linux/slab.h:552 [inline] [<000000001868ec69>] kzalloc include/linux/slab.h:664 [inline] [<000000001868ec69>] cinergyt2_fe_attach+0x21/0x80 drivers/media/usb/dvb-usb/cinergyT2-fe.c:271 [<0000000069d80651>] cinergyt2_frontend_attach+0x21/0x70 drivers/media/usb/dvb-usb/cinergyT2-core.c:74 [<00000000c12d6c47>] dvb_usb_adapter_frontend_init+0x11b/0x1b0 drivers/media/usb/dvb-usb/dvb-usb-dvb.c:290 [<0000000012dc4d47>] dvb_usb_adapter_init drivers/media/usb/dvb-usb/dvb-usb-init.c:84 [inline] [<0000000012dc4d47>] dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:173 [inline] [<0000000012dc4d47>] dvb_usb_device_init.cold+0x4d0/0x6ae drivers/media/usb/dvb-usb/dvb-usb-init.c:287 [<000000009a40ba79>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<0000000092664fce>] really_probe+0x159/0x480 drivers/base/dd.c:554 [<00000000ac3ae41f>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738 [<000000008558e2d5>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844 [<00000000562cb0b9>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<0000000056762cde>] __device_attach+0x122/0x250 drivers/base/dd.c:912 [<00000000412c6765>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<000000000a5960bb>] device_add+0x5ac/0xc30 drivers/base/core.c:2936 [<000000009ab6c3b2>] usb_set_configuration+0x9de/0xb90 drivers/usb/core/message.c:2159 [<00000000f4ffc3df>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000b38e25bd>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<0000000092664fce>] really_probe+0x159/0x480 drivers/base/dd.c:554 --- 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
