Hello, syzbot found the following issue on:
HEAD commit: dea8dcf2 Merge tag 'for-5.11/dm-fix' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15e26077500000 kernel config: https://syzkaller.appspot.com/x/.config?x=f182e38c52a35dc6 dashboard link: https://syzkaller.appspot.com/bug?extid=19bcfc64a8df1318d1c3 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119df6a3500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1147e40b500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+19bcfc64a8df1318d...@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffff88811332dc00 (size 1024): comm "kworker/1:3", pid 4910, jiffies 4294942229 (age 33.170s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 e8 f1 11 81 88 ff ff ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000ef906e9b>] kmalloc include/linux/slab.h:552 [inline] [<00000000ef906e9b>] kzalloc include/linux/slab.h:682 [inline] [<00000000ef906e9b>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784 [<000000002450a09c>] nci_allocate_device net/nfc/nci/core.c:1170 [inline] [<000000002450a09c>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132 [<000000001de82881>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153 [<0000000079b32ad1>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345 [<000000009f085cef>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000a872208e>] really_probe+0x159/0x480 drivers/base/dd.c:561 [<000000005f458884>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745 [<00000000c18df89f>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851 [<0000000071a719ab>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000a2659ebf>] __device_attach+0x122/0x250 drivers/base/dd.c:919 [<00000000b52c481d>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<0000000085c0e1c8>] device_add+0x5be/0xc30 drivers/base/core.c:3091 [<000000002a5183f1>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<000000009ca139a5>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<000000002de27e2d>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000a872208e>] really_probe+0x159/0x480 drivers/base/dd.c:561 BUG: memory leak unreferenced object 0xffff888111b0a400 (size 1024): comm "kworker/1:3", pid 4910, jiffies 4294942861 (age 26.850s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 f0 6c 0d 81 88 ff ff ..........l..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000ef906e9b>] kmalloc include/linux/slab.h:552 [inline] [<00000000ef906e9b>] kzalloc include/linux/slab.h:682 [inline] [<00000000ef906e9b>] nci_hci_allocate+0x21/0xd0 net/nfc/nci/hci.c:784 [<000000002450a09c>] nci_allocate_device net/nfc/nci/core.c:1170 [inline] [<000000002450a09c>] nci_allocate_device+0x10b/0x160 net/nfc/nci/core.c:1132 [<000000001de82881>] nfcmrvl_nci_register_dev+0x10a/0x1c0 drivers/nfc/nfcmrvl/main.c:153 [<0000000079b32ad1>] nfcmrvl_probe+0x223/0x290 drivers/nfc/nfcmrvl/usb.c:345 [<000000009f085cef>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000a872208e>] really_probe+0x159/0x480 drivers/base/dd.c:561 [<000000005f458884>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745 [<00000000c18df89f>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851 [<0000000071a719ab>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000a2659ebf>] __device_attach+0x122/0x250 drivers/base/dd.c:919 [<00000000b52c481d>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<0000000085c0e1c8>] device_add+0x5be/0xc30 drivers/base/core.c:3091 [<000000002a5183f1>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<000000009ca139a5>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<000000002de27e2d>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000a872208e>] really_probe+0x159/0x480 drivers/base/dd.c:561 --- 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 syzkal...@googlegroups.com. 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
