<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/usb/storage, branch v4.14.331</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>usb: storage: set 1.50 as the lower bcdDevice for older "Super Top" compatibility</title>
<updated>2023-11-08T10:21:10+00:00</updated>
<author>
<name>LihaSika</name>
<email>lihasika@gmail.com</email>
</author>
<published>2023-10-27T17:28:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6af059e75607a000f513551f0737b6f6dd1929c7'/>
<id>6af059e75607a000f513551f0737b6f6dd1929c7</id>
<content type='text'>
commit 0e3139e6543b241b3e65956a55c712333bef48ac upstream.

Change lower bcdDevice value for "Super Top USB 2.0  SATA BRIDGE" to match
1.50. I have such an older device with bcdDevice=1.50 and it will not work
otherwise.

Cc: stable@vger.kernel.org
Signed-off-by: Liha Sikanen &lt;lihasika@gmail.com&gt;
Link: https://lore.kernel.org/r/ccf7d12a-8362-4916-b3e0-f4150f54affd@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 0e3139e6543b241b3e65956a55c712333bef48ac upstream.

Change lower bcdDevice value for "Super Top USB 2.0  SATA BRIDGE" to match
1.50. I have such an older device with bcdDevice=1.50 and it will not work
otherwise.

Cc: stable@vger.kernel.org
Signed-off-by: Liha Sikanen &lt;lihasika@gmail.com&gt;
Link: https://lore.kernel.org/r/ccf7d12a-8362-4916-b3e0-f4150f54affd@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb-storage: alauda: Fix uninit-value in alauda_check_media()</title>
<updated>2023-08-16T16:10:54+00:00</updated>
<author>
<name>Alan Stern</name>
<email>stern@rowland.harvard.edu</email>
</author>
<published>2023-08-02T17:49:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=153c3e85873cc3e2f387169783c3a227bad9a95a'/>
<id>153c3e85873cc3e2f387169783c3a227bad9a95a</id>
<content type='text'>
commit a6ff6e7a9dd69364547751db0f626a10a6d628d2 upstream.

Syzbot got KMSAN to complain about access to an uninitialized value in
the alauda subdriver of usb-storage:

BUG: KMSAN: uninit-value in alauda_transport+0x462/0x57f0
drivers/usb/storage/alauda.c:1137
CPU: 0 PID: 12279 Comm: usb-storage Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x191/0x1f0 lib/dump_stack.c:113
  kmsan_report+0x13a/0x2b0 mm/kmsan/kmsan_report.c:108
  __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:250
  alauda_check_media+0x344/0x3310 drivers/usb/storage/alauda.c:460

The problem is that alauda_check_media() doesn't verify that its USB
transfer succeeded before trying to use the received data.  What
should happen if the transfer fails isn't entirely clear, but a
reasonably conservative approach is to pretend that no media is
present.

A similar problem exists in a usb_stor_dbg() call in
alauda_get_media_status().  In this case, when an error occurs the
call is redundant, because usb_stor_ctrl_transfer() already will print
a debugging message.

Finally, unrelated to the uninitialized memory access, is the fact
that alauda_check_media() performs DMA to a buffer on the stack.
Fortunately usb-storage provides a general purpose DMA-able buffer for
uses like this.  We'll use it instead.

Reported-and-tested-by: syzbot+e7d46eb426883fb97efd@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/0000000000007d25ff059457342d@google.com/T/
Suggested-by: Christophe JAILLET &lt;christophe.jaillet@wanadoo.fr&gt;
Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support")
Cc: &lt;stable@vger.kernel.org&gt;
Link: https://lore.kernel.org/r/693d5d5e-f09b-42d0-8ed9-1f96cd30bcce@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit a6ff6e7a9dd69364547751db0f626a10a6d628d2 upstream.

Syzbot got KMSAN to complain about access to an uninitialized value in
the alauda subdriver of usb-storage:

BUG: KMSAN: uninit-value in alauda_transport+0x462/0x57f0
drivers/usb/storage/alauda.c:1137
CPU: 0 PID: 12279 Comm: usb-storage Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x191/0x1f0 lib/dump_stack.c:113
  kmsan_report+0x13a/0x2b0 mm/kmsan/kmsan_report.c:108
  __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:250
  alauda_check_media+0x344/0x3310 drivers/usb/storage/alauda.c:460

The problem is that alauda_check_media() doesn't verify that its USB
transfer succeeded before trying to use the received data.  What
should happen if the transfer fails isn't entirely clear, but a
reasonably conservative approach is to pretend that no media is
present.

A similar problem exists in a usb_stor_dbg() call in
alauda_get_media_status().  In this case, when an error occurs the
call is redundant, because usb_stor_ctrl_transfer() already will print
a debugging message.

Finally, unrelated to the uninitialized memory access, is the fact
that alauda_check_media() performs DMA to a buffer on the stack.
Fortunately usb-storage provides a general purpose DMA-able buffer for
uses like this.  We'll use it instead.

Reported-and-tested-by: syzbot+e7d46eb426883fb97efd@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/0000000000007d25ff059457342d@google.com/T/
Suggested-by: Christophe JAILLET &lt;christophe.jaillet@wanadoo.fr&gt;
Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support")
Cc: &lt;stable@vger.kernel.org&gt;
Link: https://lore.kernel.org/r/693d5d5e-f09b-42d0-8ed9-1f96cd30bcce@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>treewide: Remove uninitialized_var() usage</title>
<updated>2023-08-11T09:33:32+00:00</updated>
<author>
<name>Kees Cook</name>
<email>keescook@chromium.org</email>
</author>
<published>2020-06-03T20:09:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d68627697d173a236b9b8468ed5d928cab7a7d61'/>
<id>d68627697d173a236b9b8468ed5d928cab7a7d61</id>
<content type='text'>
commit 3f649ab728cda8038259d8f14492fe400fbab911 upstream.

Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky &lt;leonro@mellanox.com&gt; # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe &lt;jgg@mellanox.com&gt; # IB
Acked-by: Kalle Valo &lt;kvalo@codeaurora.org&gt; # wireless drivers
Reviewed-by: Chao Yu &lt;yuchao0@huawei.com&gt; # erofs
Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 3f649ab728cda8038259d8f14492fe400fbab911 upstream.

Using uninitialized_var() is dangerous as it papers over real bugs[1]
(or can in the future), and suppresses unrelated compiler warnings
(e.g. "unused variable"). If the compiler thinks it is uninitialized,
either simply initialize the variable or make compiler changes.

In preparation for removing[2] the[3] macro[4], remove all remaining
needless uses with the following script:

git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \
	xargs perl -pi -e \
		's/\buninitialized_var\(([^\)]+)\)/\1/g;
		 s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;'

drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid
pathological white-space.

No outstanding warnings were found building allmodconfig with GCC 9.3.0
for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64,
alpha, and m68k.

[1] https://lore.kernel.org/lkml/20200603174714.192027-1-glider@google.com/
[2] https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1TGqCR5vQkCzWJ0QxK6CernOU6eedsudAixw@mail.gmail.com/
[3] https://lore.kernel.org/lkml/CA+55aFwgbgqhbp1fkxvRKEpzyR5J8n1vKT1VZdz9knmPuXhOeg@mail.gmail.com/
[4] https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/

Reviewed-by: Leon Romanovsky &lt;leonro@mellanox.com&gt; # drivers/infiniband and mlx4/mlx5
Acked-by: Jason Gunthorpe &lt;jgg@mellanox.com&gt; # IB
Acked-by: Kalle Valo &lt;kvalo@codeaurora.org&gt; # wireless drivers
Reviewed-by: Chao Yu &lt;yuchao0@huawei.com&gt; # erofs
Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb-storage: fix deadlock when a scsi command timeouts more than once</title>
<updated>2023-05-30T11:38:36+00:00</updated>
<author>
<name>Maxime Bizon</name>
<email>mbizon@freebox.fr</email>
</author>
<published>2023-05-05T11:47:59+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ec3e49cd72dd9d761c80cabc4933cf704a6805e4'/>
<id>ec3e49cd72dd9d761c80cabc4933cf704a6805e4</id>
<content type='text'>
commit a398d5eac6984316e71474e25b975688f282379b upstream.

With faulty usb-storage devices, read/write can timeout, in that case
the SCSI layer will abort and re-issue the command. USB storage has no
internal timeout, it relies on SCSI layer aborting commands via
.eh_abort_handler() for non those responsive devices.

After two consecutive timeouts of the same command, SCSI layer calls
.eh_device_reset_handler(), without calling .eh_abort_handler() first.

With usb-storage, this causes a deadlock:

  -&gt; .eh_device_reset_handler
    -&gt; device_reset
      -&gt; mutex_lock(&amp;(us-&gt;dev_mutex));

mutex already by usb_stor_control_thread(), which is waiting for
command completion:

  -&gt; usb_stor_control_thread (mutex taken here)
    -&gt; usb_stor_invoke_transport
      -&gt; usb_stor_Bulk_transport
        -&gt; usb_stor_bulk_srb
	  -&gt; usb_stor_bulk_transfer_sglist
	    -&gt; usb_sg_wait

Make sure we cancel any pending command in .eh_device_reset_handler()
to avoid this.

Signed-off-by: Maxime Bizon &lt;mbizon@freebox.fr&gt;
Cc: linux-usb@vger.kernel.org
Cc: stable &lt;stable@kernel.org&gt;
Link: https://lore.kernel.org/all/ZEllnjMKT8ulZbJh@sakura/
Reviewed-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/20230505114759.1189741-1-mbizon@freebox.fr
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit a398d5eac6984316e71474e25b975688f282379b upstream.

With faulty usb-storage devices, read/write can timeout, in that case
the SCSI layer will abort and re-issue the command. USB storage has no
internal timeout, it relies on SCSI layer aborting commands via
.eh_abort_handler() for non those responsive devices.

After two consecutive timeouts of the same command, SCSI layer calls
.eh_device_reset_handler(), without calling .eh_abort_handler() first.

With usb-storage, this causes a deadlock:

  -&gt; .eh_device_reset_handler
    -&gt; device_reset
      -&gt; mutex_lock(&amp;(us-&gt;dev_mutex));

mutex already by usb_stor_control_thread(), which is waiting for
command completion:

  -&gt; usb_stor_control_thread (mutex taken here)
    -&gt; usb_stor_invoke_transport
      -&gt; usb_stor_Bulk_transport
        -&gt; usb_stor_bulk_srb
	  -&gt; usb_stor_bulk_transfer_sglist
	    -&gt; usb_sg_wait

Make sure we cancel any pending command in .eh_device_reset_handler()
to avoid this.

Signed-off-by: Maxime Bizon &lt;mbizon@freebox.fr&gt;
Cc: linux-usb@vger.kernel.org
Cc: stable &lt;stable@kernel.org&gt;
Link: https://lore.kernel.org/all/ZEllnjMKT8ulZbJh@sakura/
Reviewed-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Link: https://lore.kernel.org/r/20230505114759.1189741-1-mbizon@freebox.fr
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>uas: Add US_FL_NO_REPORT_OPCODES for JMicron JMS583Gen 2</title>
<updated>2023-04-05T09:14:16+00:00</updated>
<author>
<name>Yaroslav Furman</name>
<email>yaro330@gmail.com</email>
</author>
<published>2023-03-12T09:07:45+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6b3b180a3060e27660b5d5e06a05d72cac776367'/>
<id>6b3b180a3060e27660b5d5e06a05d72cac776367</id>
<content type='text'>
commit a37eb61b6ec064ac794b8a1e89fd33eb582fe51d upstream.

Just like other JMicron JMS5xx enclosures, it chokes on report-opcodes,
let's avoid them.

Signed-off-by: Yaroslav Furman &lt;yaro330@gmail.com&gt;
Cc: stable &lt;stable@kernel.org&gt;
Link: https://lore.kernel.org/r/20230312090745.47962-1-yaro330@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit a37eb61b6ec064ac794b8a1e89fd33eb582fe51d upstream.

Just like other JMicron JMS5xx enclosures, it chokes on report-opcodes,
let's avoid them.

Signed-off-by: Yaroslav Furman &lt;yaro330@gmail.com&gt;
Cc: stable &lt;stable@kernel.org&gt;
Link: https://lore.kernel.org/r/20230312090745.47962-1-yaro330@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>USB: ene_usb6250: Allocate enough memory for full object</title>
<updated>2023-03-11T15:26:54+00:00</updated>
<author>
<name>Kees Cook</name>
<email>keescook@chromium.org</email>
</author>
<published>2023-02-04T18:35:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=26f31c6e1389c23a1b822a61c59d5d1f357cb478'/>
<id>26f31c6e1389c23a1b822a61c59d5d1f357cb478</id>
<content type='text'>
[ Upstream commit ce33e64c1788912976b61314b56935abd4bc97ef ]

The allocation of PageBuffer is 512 bytes in size, but the dereferencing
of struct ms_bootblock_idi (also size 512) happens at a calculated offset
within the allocation, which means the object could potentially extend
beyond the end of the allocation. Avoid this case by just allocating
enough space to catch any accesses beyond the end. Seen with GCC 13:

../drivers/usb/storage/ene_ub6250.c: In function 'ms_lib_process_bootblock':
../drivers/usb/storage/ene_ub6250.c:1050:44: warning: array subscript 'struct ms_bootblock_idi[0]' is partly outside array bounds of 'unsigned char[512]' [-Warray-bounds=]
 1050 |                         if (le16_to_cpu(idi-&gt;wIDIgeneralConfiguration) != MS_IDI_GENERAL_CONF)
      |                                            ^~
../include/uapi/linux/byteorder/little_endian.h:37:51: note: in definition of macro '__le16_to_cpu'
   37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
      |                                                   ^
../drivers/usb/storage/ene_ub6250.c:1050:29: note: in expansion of macro 'le16_to_cpu'
 1050 |                         if (le16_to_cpu(idi-&gt;wIDIgeneralConfiguration) != MS_IDI_GENERAL_CONF)
      |                             ^~~~~~~~~~~
In file included from ../drivers/usb/storage/ene_ub6250.c:5:
In function 'kmalloc',
    inlined from 'ms_lib_process_bootblock' at ../drivers/usb/storage/ene_ub6250.c:942:15:
../include/linux/slab.h:580:24: note: at offset [256, 512] into object of size 512 allocated by 'kmalloc_trace'
  580 |                 return kmalloc_trace(
      |                        ^~~~~~~~~~~~~~
  581 |                                 kmalloc_caches[kmalloc_type(flags)][index],
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                                 flags, size);
      |                                 ~~~~~~~~~~~~

Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
Link: https://lore.kernel.org/r/20230204183546.never.849-kees@kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit ce33e64c1788912976b61314b56935abd4bc97ef ]

The allocation of PageBuffer is 512 bytes in size, but the dereferencing
of struct ms_bootblock_idi (also size 512) happens at a calculated offset
within the allocation, which means the object could potentially extend
beyond the end of the allocation. Avoid this case by just allocating
enough space to catch any accesses beyond the end. Seen with GCC 13:

../drivers/usb/storage/ene_ub6250.c: In function 'ms_lib_process_bootblock':
../drivers/usb/storage/ene_ub6250.c:1050:44: warning: array subscript 'struct ms_bootblock_idi[0]' is partly outside array bounds of 'unsigned char[512]' [-Warray-bounds=]
 1050 |                         if (le16_to_cpu(idi-&gt;wIDIgeneralConfiguration) != MS_IDI_GENERAL_CONF)
      |                                            ^~
../include/uapi/linux/byteorder/little_endian.h:37:51: note: in definition of macro '__le16_to_cpu'
   37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
      |                                                   ^
../drivers/usb/storage/ene_ub6250.c:1050:29: note: in expansion of macro 'le16_to_cpu'
 1050 |                         if (le16_to_cpu(idi-&gt;wIDIgeneralConfiguration) != MS_IDI_GENERAL_CONF)
      |                             ^~~~~~~~~~~
In file included from ../drivers/usb/storage/ene_ub6250.c:5:
In function 'kmalloc',
    inlined from 'ms_lib_process_bootblock' at ../drivers/usb/storage/ene_ub6250.c:942:15:
../include/linux/slab.h:580:24: note: at offset [256, 512] into object of size 512 allocated by 'kmalloc_trace'
  580 |                 return kmalloc_trace(
      |                        ^~~~~~~~~~~~~~
  581 |                                 kmalloc_caches[kmalloc_type(flags)][index],
      |                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  582 |                                 flags, size);
      |                                 ~~~~~~~~~~~~

Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Kees Cook &lt;keescook@chromium.org&gt;
Link: https://lore.kernel.org/r/20230204183546.never.849-kees@kernel.org
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb-storage: apply IGNORE_UAS only for HIKSEMI MD202 on RTL9210</title>
<updated>2023-01-24T06:05:19+00:00</updated>
<author>
<name>Juhyung Park</name>
<email>qkrwngud825@gmail.com</email>
</author>
<published>2023-01-17T08:51:54+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=8334e7871eedb5549d6a3729f7ae535f1eb03119'/>
<id>8334e7871eedb5549d6a3729f7ae535f1eb03119</id>
<content type='text'>
commit dbd24ec17b85b45f4e823d1aa5607721920f2b05 upstream.

The commit e00b488e813f ("usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS")
blacklists UAS for all of RTL9210 enclosures.

The RTL9210 controller was advertised with UAS since its release back in
2019 and was shipped with a lot of enclosure products with different
firmware combinations.

Blacklist UAS only for HIKSEMI MD202.

This should hopefully be replaced with more robust method than just
comparing strings.  But with limited information [1] provided thus far
(dmesg when the device is plugged in, which includes manufacturer and
product, but no lsusb -v to compare against), this is the best we can do
for now.

[1] https://lore.kernel.org/all/20230109115550.71688-1-qkrwngud825@gmail.com

Fixes: e00b488e813f ("usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS")
Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Cc: Hongling Zeng &lt;zenghongling@kylinos.cn&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Juhyung Park &lt;qkrwngud825@gmail.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Link: https://lore.kernel.org/r/20230117085154.123301-1-qkrwngud825@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit dbd24ec17b85b45f4e823d1aa5607721920f2b05 upstream.

The commit e00b488e813f ("usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS")
blacklists UAS for all of RTL9210 enclosures.

The RTL9210 controller was advertised with UAS since its release back in
2019 and was shipped with a lot of enclosure products with different
firmware combinations.

Blacklist UAS only for HIKSEMI MD202.

This should hopefully be replaced with more robust method than just
comparing strings.  But with limited information [1] provided thus far
(dmesg when the device is plugged in, which includes manufacturer and
product, but no lsusb -v to compare against), this is the best we can do
for now.

[1] https://lore.kernel.org/all/20230109115550.71688-1-qkrwngud825@gmail.com

Fixes: e00b488e813f ("usb-storage: Add Hiksemi USB3-FW to IGNORE_UAS")
Cc: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Cc: Hongling Zeng &lt;zenghongling@kylinos.cn&gt;
Cc: stable@vger.kernel.org
Signed-off-by: Juhyung Park &lt;qkrwngud825@gmail.com&gt;
Acked-by: Oliver Neukum &lt;oneukum@suse.com&gt;
Link: https://lore.kernel.org/r/20230117085154.123301-1-qkrwngud825@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: storage: Add check for kcalloc</title>
<updated>2023-01-18T08:26:25+00:00</updated>
<author>
<name>Jiasheng Jiang</name>
<email>jiasheng@iscas.ac.cn</email>
</author>
<published>2022-12-08T11:00:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=51956a3516754060a879799c52276f53a24073de'/>
<id>51956a3516754060a879799c52276f53a24073de</id>
<content type='text'>
[ Upstream commit c35ca10f53c51eeb610d3f8fbc6dd6d511b58a58 ]

As kcalloc may return NULL pointer, the return value should
be checked and return error if fails as same as the ones in
alauda_read_map.

Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support")
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Jiasheng Jiang &lt;jiasheng@iscas.ac.cn&gt;
Link: https://lore.kernel.org/r/20221208110058.12983-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit c35ca10f53c51eeb610d3f8fbc6dd6d511b58a58 ]

As kcalloc may return NULL pointer, the return value should
be checked and return error if fails as same as the ones in
alauda_read_map.

Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support")
Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Signed-off-by: Jiasheng Jiang &lt;jiasheng@iscas.ac.cn&gt;
Link: https://lore.kernel.org/r/20221208110058.12983-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "usb: storage: Add quirk for Samsung Fit flash"</title>
<updated>2022-10-26T11:17:13+00:00</updated>
<author>
<name>sunghwan jung</name>
<email>onenowy@gmail.com</email>
</author>
<published>2022-09-13T11:49:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=125cc2e3ef8960631c6251d4f306bfe4e8b7992d'/>
<id>125cc2e3ef8960631c6251d4f306bfe4e8b7992d</id>
<content type='text'>
[ Upstream commit ad5dbfc123e6ffbbde194e2a4603323e09f741ee ]

This reverts commit 86d92f5465958752481269348d474414dccb1552,
which fix the timeout issue for "Samsung Fit Flash".

But the commit affects not only "Samsung Fit Flash" but also other usb
storages that use the same controller and causes severe performance
regression.

 # hdparm -t /dev/sda (without the quirk)
 Timing buffered disk reads: 622 MB in  3.01 seconds = 206.66 MB/sec

 # hdparm -t /dev/sda (with the quirk)
 Timing buffered disk reads: 220 MB in  3.00 seconds =  73.32 MB/sec

The commit author mentioned that "Issue was reproduced after device has
bad block", so this quirk should be applied when we have the timeout
issue with a device that has bad blocks.

We revert the commit so that we apply this quirk by adding kernel
paramters using a bootloader or other ways when we really need it,
without the performance regression with devices that don't have the
issue.

Signed-off-by: sunghwan jung &lt;onenowy@gmail.com&gt;
Link: https://lore.kernel.org/r/20220913114913.3073-1-onenowy@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit ad5dbfc123e6ffbbde194e2a4603323e09f741ee ]

This reverts commit 86d92f5465958752481269348d474414dccb1552,
which fix the timeout issue for "Samsung Fit Flash".

But the commit affects not only "Samsung Fit Flash" but also other usb
storages that use the same controller and causes severe performance
regression.

 # hdparm -t /dev/sda (without the quirk)
 Timing buffered disk reads: 622 MB in  3.01 seconds = 206.66 MB/sec

 # hdparm -t /dev/sda (with the quirk)
 Timing buffered disk reads: 220 MB in  3.00 seconds =  73.32 MB/sec

The commit author mentioned that "Issue was reproduced after device has
bad block", so this quirk should be applied when we have the timeout
issue with a device that has bad blocks.

We revert the commit so that we apply this quirk by adding kernel
paramters using a bootloader or other ways when we really need it,
without the performance regression with devices that don't have the
issue.

Signed-off-by: sunghwan jung &lt;onenowy@gmail.com&gt;
Link: https://lore.kernel.org/r/20220913114913.3073-1-onenowy@gmail.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>uas: ignore UAS for Thinkplus chips</title>
<updated>2022-10-26T11:16:49+00:00</updated>
<author>
<name>Hongling Zeng</name>
<email>zenghongling@kylinos.cn</email>
</author>
<published>2022-09-23T02:46:35+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=5361ed6ad98c7b7dc7f45b5f4866757d4f01d885'/>
<id>5361ed6ad98c7b7dc7f45b5f4866757d4f01d885</id>
<content type='text'>
commit 0fb9703a3eade0bb84c635705d9c795345e55053 upstream.

The UAS mode of Thinkplus(0x17ef, 0x3899) is reported to influence
performance and trigger kernel panic on several platforms with the
following error message:

[   39.702439] xhci_hcd 0000:0c:00.3: ERROR Transfer event for disabled
               endpoint or incorrect stream ring
[   39.702442] xhci_hcd 0000:0c:00.3: @000000026c61f810 00000000 00000000
               1b000000 05038000

[  720.545894][13] Workqueue: usb_hub_wq hub_event
[  720.550971][13]  ffff88026c143c38 0000000000016300 ffff8802755bb900 ffff880
                    26cb80000
[  720.559673][13]  ffff88026c144000 ffff88026ca88100 0000000000000000 ffff880
                    26cb80000
[  720.568374][13]  ffff88026cb80000 ffff88026c143c50 ffffffff8186ae25 ffff880
                    26ca880f8
[  720.577076][13] Call Trace:
[  720.580201][13]  [&lt;ffffffff8186ae25&gt;] schedule+0x35/0x80
[  720.586137][13]  [&lt;ffffffff8186b0ce&gt;] schedule_preempt_disabled+0xe/0x10
[  720.593623][13]  [&lt;ffffffff8186cb94&gt;] __mutex_lock_slowpath+0x164/0x1e0
[  720.601012][13]  [&lt;ffffffff8186cc3f&gt;] mutex_lock+0x2f/0x40
[  720.607141][13]  [&lt;ffffffff8162b8e9&gt;] usb_disconnect+0x59/0x290

Falling back to USB mass storage can solve this problem, so ignore UAS
function of this chip.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Cc: stable &lt;stable@kernel.org&gt;
Signed-off-by: Hongling Zeng &lt;zenghongling@kylinos.cn&gt;
Link: https://lore.kernel.org/r/1663902249837086.19.seg@mailgw
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 0fb9703a3eade0bb84c635705d9c795345e55053 upstream.

The UAS mode of Thinkplus(0x17ef, 0x3899) is reported to influence
performance and trigger kernel panic on several platforms with the
following error message:

[   39.702439] xhci_hcd 0000:0c:00.3: ERROR Transfer event for disabled
               endpoint or incorrect stream ring
[   39.702442] xhci_hcd 0000:0c:00.3: @000000026c61f810 00000000 00000000
               1b000000 05038000

[  720.545894][13] Workqueue: usb_hub_wq hub_event
[  720.550971][13]  ffff88026c143c38 0000000000016300 ffff8802755bb900 ffff880
                    26cb80000
[  720.559673][13]  ffff88026c144000 ffff88026ca88100 0000000000000000 ffff880
                    26cb80000
[  720.568374][13]  ffff88026cb80000 ffff88026c143c50 ffffffff8186ae25 ffff880
                    26ca880f8
[  720.577076][13] Call Trace:
[  720.580201][13]  [&lt;ffffffff8186ae25&gt;] schedule+0x35/0x80
[  720.586137][13]  [&lt;ffffffff8186b0ce&gt;] schedule_preempt_disabled+0xe/0x10
[  720.593623][13]  [&lt;ffffffff8186cb94&gt;] __mutex_lock_slowpath+0x164/0x1e0
[  720.601012][13]  [&lt;ffffffff8186cc3f&gt;] mutex_lock+0x2f/0x40
[  720.607141][13]  [&lt;ffffffff8162b8e9&gt;] usb_disconnect+0x59/0x290

Falling back to USB mass storage can solve this problem, so ignore UAS
function of this chip.

Acked-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Cc: stable &lt;stable@kernel.org&gt;
Signed-off-by: Hongling Zeng &lt;zenghongling@kylinos.cn&gt;
Link: https://lore.kernel.org/r/1663902249837086.19.seg@mailgw
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
