Hello, syzbot found the following issue on: HEAD commit: 3644e2d2 mm/filemap: fix infinite loop in generic_file_buf.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16f80eff500000 kernel config: https://syzkaller.appspot.com/x/.config?x=37c889fb8b2761af dashboard link: https://syzkaller.appspot.com/bug?extid=b4d54814b339b5c6bbd4 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1089df07500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1671c77f500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b4d54814b339b5c6bbd4@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: memory leak unreferenced object 0xffffc90000e71000 (size 200704): comm "kworker/0:2", pid 3653, jiffies 4294942426 (age 13.820s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 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: [<00000000110a155e>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2585 [<000000008a1ee970>] __vmalloc_node mm/vmalloc.c:2617 [inline] [<000000008a1ee970>] vmalloc+0x49/0x50 mm/vmalloc.c:2650 [<00000000a6a3abfa>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1348 [inline] [<00000000a6a3abfa>] zr364xx_probe+0x60b/0x833 drivers/media/usb/zr364xx/zr364xx.c:1509 [<0000000014a572f5>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000f30ee977>] really_probe+0x159/0x480 drivers/base/dd.c:561 [<00000000ddb29374>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745 [<0000000073c89cb9>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851 [<000000009f56a99c>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000848d591a>] __device_attach+0x122/0x250 drivers/base/dd.c:919 [<00000000168be5bb>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000464f40a6>] device_add+0x5be/0xc30 drivers/base/core.c:3091 [<000000008c75a2b5>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<00000000071d14a5>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000f325b973>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000f30ee977>] really_probe+0x159/0x480 drivers/base/dd.c:561 [<00000000ddb29374>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745 --- 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
