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| Filename | Latest commit message | Latest commit date |
|---|---|---|
64677f10e5
commit 5c0e4110f751934e748a66887c61f8e73805f0f9 upstream.
The dlfb_alloc_urb_list function is called in dlfb_usb_probe function,
after that if an error occurs, the dlfb_free_urb_list function need to
be called.
BUG: memory leak
unreferenced object 0xffff88810adde100 (size 32):
comm "kworker/1:0", pid 17, jiffies 4294947788 (age 19.520s)
hex dump (first 32 bytes):
10 30 c3 0d 81 88 ff ff c0 fa 63 12 81 88 ff ff .0........c.....
00 30 c3 0d 81 88 ff ff 80 d1 3a 08 81 88 ff ff .0........:.....
backtrace:
[<0000000019512953>] kmalloc include/linux/slab.h:552 [inline]
[<0000000019512953>] kzalloc include/linux/slab.h:664 [inline]
[<0000000019512953>] dlfb_alloc_urb_list drivers/video/fbdev/udlfb.c:1892 [inline]
[<0000000019512953>] dlfb_usb_probe.cold+0x289/0x988 drivers/video/fbdev/udlfb.c:1704
[<0000000072160152>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396
[<00000000a8d6726f>] really_probe+0x159/0x480 drivers/base/dd.c:554
[<00000000c3ce4b0e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738
[<00000000e942e01c>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844
[<00000000de0a5a5c>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
[<00000000463fbcb4>] __device_attach+0x122/0x250 drivers/base/dd.c:912
[<00000000b881a711>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491
[<00000000364bbda5>] device_add+0x5ac/0xc30 drivers/base/core.c:2936
[<00000000eecca418>] usb_set_configuration+0x9de/0xb90 drivers/usb/core/message.c:2159
[<00000000edfeca2d>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238
[<000000001830872b>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293
[<00000000a8d6726f>] really_probe+0x159/0x480 drivers/base/dd.c:554
[<00000000c3ce4b0e>] driver_probe_device+0x84/0x100 drivers/base/dd.c:738
[<00000000e942e01c>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:844
[<00000000de0a5a5c>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431
Reported-by: syzbot+c9e365d7f450e8aa615d@syzkaller.appspotmail.com
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215063022.16746-1-qiang.zhang@windriver.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.