Hello, syzbot found the following issue on: HEAD commit: 0f4498ce Merge tag 'for-5.12/dm-fixes-2' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17e1514ad00000 kernel config: https://syzkaller.appspot.com/x/.config?x=49f2683f4e7a4347 dashboard link: https://syzkaller.appspot.com/bug?extid=990626a4ef6f043ed4cd syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16fb3d9ed00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117539aad00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+990626a4ef6f043ed4cd@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffff888110dd9f00 (size 64): comm "kworker/0:0", pid 5, jiffies 4294944081 (age 15.000s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 18 00 00 00 ................ 04 00 00 00 60 01 00 00 30 01 00 00 04 00 00 00 ....`...0....... backtrace: [<ffffffff8424c055>] kmalloc include/linux/slab.h:554 [inline] [<ffffffff8424c055>] hdcs_probe_1020 drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c:428 [inline] [<ffffffff8424c055>] hdcs_probe_1020.cold+0x39/0x96 drivers/media/usb/gspca/stv06xx/stv06xx_hdcs.c:413 [<ffffffff82fe2db7>] stv06xx_config+0x107/0x190 drivers/media/usb/gspca/stv06xx/stv06xx.c:575 [<ffffffff842427ca>] gspca_dev_probe2+0x359/0x6c5 drivers/media/usb/gspca/gspca.c:1529 [<ffffffff84242b78>] gspca_dev_probe.cold+0x42/0x4a drivers/media/usb/gspca/gspca.c:1606 [<ffffffff82ba7c87>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff825f6079>] really_probe+0x159/0x4a0 drivers/base/dd.c:554 [<ffffffff825f6444>] driver_probe_device+0x84/0x100 drivers/base/dd.c:740 [<ffffffff825f6b5e>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:846 [<ffffffff825f2ff7>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<ffffffff825f66f2>] __device_attach+0x122/0x250 drivers/base/dd.c:914 [<ffffffff825f4c96>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<ffffffff825f11e5>] device_add+0x5d5/0xc40 drivers/base/core.c:3242 [<ffffffff82ba5229>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<ffffffff82bb568c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<ffffffff82ba73ec>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<ffffffff825f6079>] really_probe+0x159/0x4a0 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
