linux-stable.git/drivers/staging, branch v5.4.32 Linux kernel stable tree staging: wlan-ng: fix use-after-free Read in hfa384x_usbin_callback 2020-04-01T09:02:17+00:00 Qiujun Huang hqjagain@gmail.com 2020-03-26T13:18:50+00:00 89d4acabb2f65c516aaaa19ae695fab9f56a69b1 commit 1165dd73e811a07d947aee218510571f516081f6 upstream. We can't handle the case length > WLAN_DATA_MAXLEN. Because the size of rxfrm->data is WLAN_DATA_MAXLEN(2312), and we can't read more than that. Thanks-to: Hillf Danton <hdanton@sina.com> Reported-and-tested-by: syzbot+7d42d68643a35f71ac8a@syzkaller.appspotmail.com Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200326131850.17711-1-hqjagain@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 1165dd73e811a07d947aee218510571f516081f6 upstream.

We can't handle the case length > WLAN_DATA_MAXLEN.
Because the size of rxfrm->data is WLAN_DATA_MAXLEN(2312), and we can't
read more than that.

Thanks-to: Hillf Danton <hdanton@sina.com>
Reported-and-tested-by: syzbot+7d42d68643a35f71ac8a@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200326131850.17711-1-hqjagain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb 2020-04-01T09:02:17+00:00 Qiujun Huang hqjagain@gmail.com 2020-03-25T07:06:46+00:00 c44ea4fe738b25baf53cd7a190b35650617e3a25 commit a1f165a6b738f0c9d744bad4af7a53909278f5fc upstream. We should cancel hw->usb_work before kfree(hw). Reported-by: syzbot+6d2e7f6fa90e27be9d62@syzkaller.appspotmail.com Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/1585120006-30042-1-git-send-email-hqjagain@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit a1f165a6b738f0c9d744bad4af7a53909278f5fc upstream.

We should cancel hw->usb_work before kfree(hw).

Reported-by: syzbot+6d2e7f6fa90e27be9d62@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1585120006-30042-1-git-send-email-hqjagain@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: rtl8188eu: Add ASUS USB-N10 Nano B1 to device table 2020-04-01T09:02:16+00:00 Larry Finger Larry.Finger@lwfinger.net 2020-03-21T18:00:11+00:00 0ec1ab1b15d2f9d58476b8ee81e4284dc3ef50e4 commit 38ef48f7d4b7342f145a1b4f96023bde99aeb245 upstream. The ASUS USB-N10 Nano B1 has been reported as a new RTL8188EU device. Add it to the device tables. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Reported-by: kovi <zraetn@gmail.com> Cc: Stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200321180011.26153-1-Larry.Finger@lwfinger.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 38ef48f7d4b7342f145a1b4f96023bde99aeb245 upstream.

The ASUS USB-N10 Nano B1 has been reported as a new RTL8188EU device.
Add it to the device tables.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: kovi <zraetn@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200321180011.26153-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: kpc2000: prevent underflow in cpld_reconfigure() 2020-04-01T09:02:16+00:00 Dan Carpenter dan.carpenter@oracle.com 2020-02-24T10:33:25+00:00 fea3939c6ccc7e10e808e886b07b66a49a2e835e commit 72db61d7d17a475d3cc9de1a7c871d518fcd82f0 upstream. This function should not allow negative values of "wr_val". If negatives are allowed then capping the upper bound at 7 is meaningless. Let's make it unsigned. Fixes: 7dc7967fc39a ("staging: kpc2000: add initial set of Daktronics drivers") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200224103325.hrxdnaeqsthplu42@kili.mountain Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 72db61d7d17a475d3cc9de1a7c871d518fcd82f0 upstream.

This function should not allow negative values of "wr_val".  If
negatives are allowed then capping the upper bound at 7 is
meaningless.  Let's make it unsigned.

Fixes: 7dc7967fc39a ("staging: kpc2000: add initial set of Daktronics drivers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200224103325.hrxdnaeqsthplu42@kili.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: greybus: loopback_test: fix potential path truncations 2020-03-25T07:25:59+00:00 Johan Hovold johan@kernel.org 2020-03-12T11:01:51+00:00 7b2cdbd67ff0829642284f3a6f68d27976eed6d0 commit ae62cf5eb2792d9a818c2d93728ed92119357017 upstream. Newer GCC warns about possible truncations of two generated path names as we're concatenating the configurable sysfs and debugfs path prefixes with a filename and placing the results in buffers of the same size as the maximum length of the prefixes. snprintf(d->name, MAX_STR_LEN, "gb_loopback%u", dev_id); snprintf(d->sysfs_entry, MAX_SYSFS_PATH, "%s%s/", t->sysfs_prefix, d->name); snprintf(d->debugfs_entry, MAX_SYSFS_PATH, "%sraw_latency_%s", t->debugfs_prefix, d->name); Fix this by separating the maximum path length from the maximum prefix length and reducing the latter enough to fit the generated strings. Note that we also need to reduce the device-name buffer size as GCC isn't smart enough to figure out that we ever only used MAX_STR_LEN bytes of it. Fixes: 6b0658f68786 ("greybus: tools: Add tools directory to greybus repo and add loopback") Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20200312110151.22028-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit ae62cf5eb2792d9a818c2d93728ed92119357017 upstream.

Newer GCC warns about possible truncations of two generated path names as
we're concatenating the configurable sysfs and debugfs path prefixes
with a filename and placing the results in buffers of the same size as
the maximum length of the prefixes.

	snprintf(d->name, MAX_STR_LEN, "gb_loopback%u", dev_id);

	snprintf(d->sysfs_entry, MAX_SYSFS_PATH, "%s%s/",
		 t->sysfs_prefix, d->name);

	snprintf(d->debugfs_entry, MAX_SYSFS_PATH, "%sraw_latency_%s",
		 t->debugfs_prefix, d->name);

Fix this by separating the maximum path length from the maximum prefix
length and reducing the latter enough to fit the generated strings.

Note that we also need to reduce the device-name buffer size as GCC
isn't smart enough to figure out that we ever only used MAX_STR_LEN
bytes of it.

Fixes: 6b0658f68786 ("greybus: tools: Add tools directory to greybus repo and add loopback")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200312110151.22028-4-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: greybus: loopback_test: fix potential path truncation 2020-03-25T07:25:59+00:00 Johan Hovold johan@kernel.org 2020-03-12T11:01:50+00:00 8e79f440edb5804172488acb00a0ecbe753cb66c commit f16023834863932f95dfad13fac3fc47f77d2f29 upstream. Newer GCC warns about a possible truncation of a generated sysfs path name as we're concatenating a directory path with a file name and placing the result in a buffer that is half the size of the maximum length of the directory path (which is user controlled). loopback_test.c: In function 'open_poll_files': loopback_test.c:651:31: warning: '%s' directive output may be truncated writing up to 511 bytes into a region of size 255 [-Wformat-truncation=] 651 | snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count"); | ^~ loopback_test.c:651:3: note: 'snprintf' output between 16 and 527 bytes into a destination of size 255 651 | snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count"); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by making sure the buffer is large enough the concatenated strings. Fixes: 6b0658f68786 ("greybus: tools: Add tools directory to greybus repo and add loopback") Fixes: 9250c0ee2626 ("greybus: Loopback_test: use poll instead of inotify") Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20200312110151.22028-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit f16023834863932f95dfad13fac3fc47f77d2f29 upstream.

Newer GCC warns about a possible truncation of a generated sysfs path
name as we're concatenating a directory path with a file name and
placing the result in a buffer that is half the size of the maximum
length of the directory path (which is user controlled).

loopback_test.c: In function 'open_poll_files':
loopback_test.c:651:31: warning: '%s' directive output may be truncated writing up to 511 bytes into a region of size 255 [-Wformat-truncation=]
  651 |   snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count");
      |                               ^~
loopback_test.c:651:3: note: 'snprintf' output between 16 and 527 bytes into a destination of size 255
  651 |   snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count");
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix this by making sure the buffer is large enough the concatenated
strings.

Fixes: 6b0658f68786 ("greybus: tools: Add tools directory to greybus repo and add loopback")
Fixes: 9250c0ee2626 ("greybus: Loopback_test: use poll instead of inotify")
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200312110151.22028-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging/speakup: fix get_word non-space look-ahead 2020-03-25T07:25:55+00:00 Samuel Thibault samuel.thibault@ens-lyon.org 2020-03-06T00:30:47+00:00 07c70054ba24c51f0b9c4c50572c3118dc9a5425 commit 9d32c0cde4e2d1343dfb88a67b2ec6397705b32b upstream. get_char was erroneously given the address of the pointer to the text instead of the address of the text, thus leading to random crashes when the user requests speaking a word while the current position is on a space character and say_word_ctl is not enabled. Reported-on: https://github.com/bytefire/speakup/issues/1 Reported-by: Kirk Reiser <kirk@reisers.ca> Reported-by: Janina Sajka <janina@rednote.net> Reported-by: Alexandr Epaneshnikov <aarnaarn2@gmail.com> Reported-by: Gregory Nowak <greg@gregn.net> Reported-by: deedra waters <deedra@the-brannons.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Tested-by: Alexandr Epaneshnikov <aarnaarn2@gmail.com> Tested-by: Gregory Nowak <greg@gregn.net> Tested-by: Michael Taboada <michael@michaels.world> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200306003047.thijtmqrnayd3dmw@function Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9d32c0cde4e2d1343dfb88a67b2ec6397705b32b upstream.

get_char was erroneously given the address of the pointer to the text
instead of the address of the text, thus leading to random crashes when
the user requests speaking a word while the current position is on a space
character and say_word_ctl is not enabled.

Reported-on: https://github.com/bytefire/speakup/issues/1
Reported-by: Kirk Reiser <kirk@reisers.ca>
Reported-by: Janina Sajka <janina@rednote.net>
Reported-by: Alexandr Epaneshnikov <aarnaarn2@gmail.com>
Reported-by: Gregory Nowak <greg@gregn.net>
Reported-by: deedra waters <deedra@the-brannons.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Tested-by: Alexandr Epaneshnikov <aarnaarn2@gmail.com>
Tested-by: Gregory Nowak <greg@gregn.net>
Tested-by: Michael Taboada <michael@michaels.world>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200306003047.thijtmqrnayd3dmw@function
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: greybus: loopback_test: fix poll-mask build breakage 2020-03-25T07:25:55+00:00 Johan Hovold johan@kernel.org 2020-03-12T11:01:49+00:00 35da67a8a50cd1c1a33304030fbd09f3b0f68102 commit 8f3675be4bda33adbdc1dd2ab3b6c76a7599a79e upstream. A scripted conversion from userland POLL* to kernel EPOLL* constants mistakingly replaced the poll flags in the loopback_test tool, which therefore no longer builds. Fixes: a9a08845e9ac ("vfs: do bulk POLL* -> EPOLL* replacement") Cc: stable <stable@vger.kernel.org> # 4.16 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20200312110151.22028-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 8f3675be4bda33adbdc1dd2ab3b6c76a7599a79e upstream.

A scripted conversion from userland POLL* to kernel EPOLL* constants
mistakingly replaced the poll flags in the loopback_test tool, which
therefore no longer builds.

Fixes: a9a08845e9ac ("vfs: do bulk POLL* -> EPOLL* replacement")
Cc: stable <stable@vger.kernel.org>     # 4.16
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20200312110151.22028-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: rtl8188eu: Add device id for MERCUSYS MW150US v2 2020-03-25T07:25:55+00:00 Michael Straube straube.linux@gmail.com 2020-03-12T09:36:52+00:00 fbe68a636982c5f9dfec9856d754eb989afdf49e commit bb5786b9286c253557a0115bc8d21879e61b7b94 upstream. This device was added to the stand-alone driver on github. Add it to the staging driver as well. Link: https://github.com/lwfinger/rtl8188eu/commit/2141f244c3e7 Signed-off-by: Michael Straube <straube.linux@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200312093652.13918-1-straube.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit bb5786b9286c253557a0115bc8d21879e61b7b94 upstream.

This device was added to the stand-alone driver on github.
Add it to the staging driver as well.

Link: https://github.com/lwfinger/rtl8188eu/commit/2141f244c3e7
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200312093652.13918-1-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
media: hantro: Fix broken media controller links 2020-03-12T12:00:21+00:00 Ezequiel Garcia ezequiel@collabora.com 2020-02-04T19:38:37+00:00 9be09b4583f1e1e691f83274008ac7e003c86e31 commit d171c45da874e3858a83e6377e00280a507fe2f2 upstream. The driver currently creates a broken topology, with a source-to-source link and a sink-to-sink link instead of two source-to-sink links. Reported-by: Nicolas Dufresne <nicolas@ndufresne.ca> Cc: <stable@vger.kernel.org> # for v5.3 and up Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit d171c45da874e3858a83e6377e00280a507fe2f2 upstream.

The driver currently creates a broken topology,
with a source-to-source link and a sink-to-sink
link instead of two source-to-sink links.

Reported-by: Nicolas Dufresne <nicolas@ndufresne.ca>
Cc: <stable@vger.kernel.org>      # for v5.3 and up
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>