Hello, syzbot found the following issue on: HEAD commit: 8689f4f2ea56 Merge tag 'mmc-v6.5-2' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=11ac3fa0a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=832b404e095b70c0 dashboard link: https://syzkaller.appspot.com/bug?extid=cf71097ffb6755df8251 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f26d02a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14482e54a80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/31f0c2383fbf/disk-8689f4f2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/98c44efd609e/vmlinux-8689f4f2.xz kernel image: https://storage.googleapis.com/syzbot-assets/bbd75026af9a/bzImage-8689f4f2.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+cf71097ffb6755df8251@xxxxxxxxxxxxxxxxxxxxxxxxx executing program BUG: memory leak unreferenced object 0xffff88810a4db000 (size 4096): comm "kworker/0:3", pid 4752, jiffies 4294941496 (age 19.480s) 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: [<ffffffff8154bfa4>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076 [<ffffffff83c3bf41>] kmalloc include/linux/slab.h:582 [inline] [<ffffffff83c3bf41>] _r8712_init_xmit_priv+0x2b1/0x660 drivers/staging/rtl8712/rtl871x_xmit.c:131 [<ffffffff83c36b86>] r8712_init_drv_sw+0xc6/0x260 drivers/staging/rtl8712/os_intfs.c:311 [<ffffffff83c35766>] r871xu_drv_init+0x1f6/0x9d0 drivers/staging/rtl8712/usb_intf.c:386 [<ffffffff83237329>] usb_probe_interface+0x179/0x3c0 drivers/usb/core/driver.c:396 [<ffffffff82ba039d>] call_driver_probe drivers/base/dd.c:579 [inline] [<ffffffff82ba039d>] really_probe+0x12d/0x430 drivers/base/dd.c:658 [<ffffffff82ba0761>] __driver_probe_device+0xc1/0x1a0 drivers/base/dd.c:798 [<ffffffff82ba086a>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:828 [<ffffffff82ba0a5b>] __device_attach_driver+0xfb/0x150 drivers/base/dd.c:956 [<ffffffff82b9d7b1>] bus_for_each_drv+0xc1/0x110 drivers/base/bus.c:457 [<ffffffff82ba0f82>] __device_attach+0x102/0x2a0 drivers/base/dd.c:1028 [<ffffffff82b9ef1a>] bus_probe_device+0xca/0xd0 drivers/base/bus.c:532 [<ffffffff82b9b513>] device_add+0x993/0xc60 drivers/base/core.c:3625 [<ffffffff83234409>] usb_set_configuration+0x9a9/0xc90 drivers/usb/core/message.c:2211 [<ffffffff83246ed1>] usb_generic_driver_probe+0xa1/0x100 drivers/usb/core/generic.c:238 [<ffffffff83236a00>] usb_probe_device+0x60/0x140 drivers/usb/core/driver.c:293 BUG: memory leak unreferenced object 0xffff88810a4de000 (size 4096): comm "kworker/0:3", pid 4752, jiffies 4294941496 (age 19.480s) 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: [<ffffffff8154bfa4>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076 [<ffffffff83c3bf41>] kmalloc include/linux/slab.h:582 [inline] [<ffffffff83c3bf41>] _r8712_init_xmit_priv+0x2b1/0x660 drivers/staging/rtl8712/rtl871x_xmit.c:131 [<ffffffff83c36b86>] r8712_init_drv_sw+0xc6/0x260 drivers/staging/rtl8712/os_intfs.c:311 [<ffffffff83c35766>] r871xu_drv_init+0x1f6/0x9d0 drivers/staging/rtl8712/usb_intf.c:386 [<ffffffff83237329>] usb_probe_interface+0x179/0x3c0 drivers/usb/core/driver.c:396 [<ffffffff82ba039d>] call_driver_probe drivers/base/dd.c:579 [inline] [<ffffffff82ba039d>] really_probe+0x12d/0x430 drivers/base/dd.c:658 [<ffffffff82ba0761>] __driver_probe_device+0xc1/0x1a0 drivers/base/dd.c:798 [<ffffffff82ba086a>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:828 [<ffffffff82ba0a5b>] __device_attach_driver+0xfb/0x150 drivers/base/dd.c:956 [<ffffffff82b9d7b1>] bus_for_each_drv+0xc1/0x110 drivers/base/bus.c:457 [<ffffffff82ba0f82>] __device_attach+0x102/0x2a0 drivers/base/dd.c:1028 [<ffffffff82b9ef1a>] bus_probe_device+0xca/0xd0 drivers/base/bus.c:532 [<ffffffff82b9b513>] device_add+0x993/0xc60 drivers/base/core.c:3625 [<ffffffff83234409>] usb_set_configuration+0x9a9/0xc90 drivers/usb/core/message.c:2211 [<ffffffff83246ed1>] usb_generic_driver_probe+0xa1/0x100 drivers/usb/core/generic.c:238 [<ffffffff83236a00>] usb_probe_device+0x60/0x140 drivers/usb/core/driver.c:293 BUG: memory leak unreferenced object 0xffff88810a4d9000 (size 4096): comm "kworker/0:3", pid 4752, jiffies 4294941496 (age 19.480s) 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: [<ffffffff8154bfa4>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076 [<ffffffff83c3bf41>] kmalloc include/linux/slab.h:582 [inline] [<ffffffff83c3bf41>] _r8712_init_xmit_priv+0x2b1/0x660 drivers/staging/rtl8712/rtl871x_xmit.c:131 [<ffffffff83c36b86>] r8712_init_drv_sw+0xc6/0x260 drivers/staging/rtl8712/os_intfs.c:311 [<ffffffff83c35766>] r871xu_drv_init+0x1f6/0x9d0 drivers/staging/rtl8712/usb_intf.c:386 [<ffffffff83237329>] usb_probe_interface+0x179/0x3c0 drivers/usb/core/driver.c:396 [<ffffffff82ba039d>] call_driver_probe drivers/base/dd.c:579 [inline] [<ffffffff82ba039d>] really_probe+0x12d/0x430 drivers/base/dd.c:658 [<ffffffff82ba0761>] __driver_probe_device+0xc1/0x1a0 drivers/base/dd.c:798 [<ffffffff82ba086a>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:828 [<ffffffff82ba0a5b>] __device_attach_driver+0xfb/0x150 drivers/base/dd.c:956 [<ffffffff82b9d7b1>] bus_for_each_drv+0xc1/0x110 drivers/base/bus.c:457 [<ffffffff82ba0f82>] __device_attach+0x102/0x2a0 drivers/base/dd.c:1028 [<ffffffff82b9ef1a>] bus_probe_device+0xca/0xd0 drivers/base/bus.c:532 [<ffffffff82b9b513>] device_add+0x993/0xc60 drivers/base/core.c:3625 [<ffffffff83234409>] usb_set_configuration+0x9a9/0xc90 drivers/usb/core/message.c:2211 [<ffffffff83246ed1>] usb_generic_driver_probe+0xa1/0x100 drivers/usb/core/generic.c:238 [<ffffffff83236a00>] usb_probe_device+0x60/0x140 drivers/usb/core/driver.c:293 --- This report is generated by a bot. 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