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* Linux 4.4.262v4.4.262Greg Kroah-Hartman2021-03-171-1/+1
| | | | | | | | | | Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Pavel Machek (CIP) <pavel@denx.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Jason Self <jason@bluehome.net> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org> Link: https://lore.kernel.org/r/20210315135208.252034256@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xen/events: avoid handling the same event on two cpus at the same timeJuergen Gross2021-03-172-8/+18
| | | | | | | | | | | | | | | | | | | commit b6622798bc50b625a1e62f82c7190df40c1f5b21 upstream. When changing the cpu affinity of an event it can happen today that (with some unlucky timing) the same event will be handled on the old and the new cpu at the same time. Avoid that by adding an "event active" flag to the per-event data and call the handler only if this flag isn't set. Cc: stable@vger.kernel.org Reported-by: Julien Grall <julien@xen.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Julien Grall <jgrall@amazon.com> Link: https://lore.kernel.org/r/20210306161833.4552-4-jgross@suse.com Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xen/events: don't unmask an event channel when an eoi is pendingJuergen Gross2021-03-174-48/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | commit 25da4618af240fbec6112401498301a6f2bc9702 upstream. An event channel should be kept masked when an eoi is pending for it. When being migrated to another cpu it might be unmasked, though. In order to avoid this keep three different flags for each event channel to be able to distinguish "normal" masking/unmasking from eoi related masking/unmasking and temporary masking. The event channel should only be able to generate an interrupt if all flags are cleared. Cc: stable@vger.kernel.org Fixes: 54c9de89895e ("xen/events: add a new "late EOI" evtchn framework") Reported-by: Julien Grall <julien@xen.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Julien Grall <jgrall@amazon.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Tested-by: Ross Lagerwall <ross.lagerwall@citrix.com> Link: https://lore.kernel.org/r/20210306161833.4552-3-jgross@suse.com [boris -- corrected Fixed tag format] Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xen/events: reset affinity of 2-level event when tearing it downJuergen Gross2021-03-173-0/+24
| | | | | | | | | | | | | | | | | | | | | | | commit 9e77d96b8e2724ed00380189f7b0ded61113b39f upstream. When creating a new event channel with 2-level events the affinity needs to be reset initially in order to avoid using an old affinity from earlier usage of the event channel port. So when tearing an event channel down reset all affinity bits. The same applies to the affinity when onlining a vcpu: all old affinity settings for this vcpu must be reset. As percpu events get initialized before the percpu event channel hook is called, resetting of the affinities happens after offlining a vcpu (this is working, as initial percpu memory is zeroed out). Cc: stable@vger.kernel.org Reported-by: Julien Grall <julien@xen.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Julien Grall <jgrall@amazon.com> Link: https://lore.kernel.org/r/20210306161833.4552-2-jgross@suse.com Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: imu: adis16400: fix memory leakNavid Emamdoost2021-03-171-1/+4
| | | | | | | | | | | | | | commit 9c0530e898f384c5d279bfcebd8bb17af1105873 upstream. In adis_update_scan_mode_burst, if adis->buffer allocation fails release the adis->xfer. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [krzk: backport applied to adis16400_buffer.c instead of adis_buffer.c] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: imu: adis16400: release allocated memory on failureNavid Emamdoost2021-03-171-1/+4
| | | | | | | | | | | | | commit ab612b1daf415b62c58e130cb3d0f30b255a14d0 upstream. In adis_update_scan_mode, if allocation for adis->buffer fails, previously allocated adis->xfer needs to be released. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* KVM: arm64: Fix exclusive limit for IPA sizeMarc Zyngier2021-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Commit 262b003d059c6671601a19057e9fe1a5e7f23722 upstream. When registering a memslot, we check the size and location of that memslot against the IPA size to ensure that we can provide guest access to the whole of the memory. Unfortunately, this check rejects memslot that end-up at the exact limit of the addressing capability for a given IPA size. For example, it refuses the creation of a 2GB memslot at 0x8000000 with a 32bit IPA space. Fix it by relaxing the check to accept a memslot reaching the limit of the IPA space. Fixes: c3058d5da222 ("arm/arm64: KVM: Ensure memslots are within KVM_PHYS_SIZE") Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Cc: stable@vger.kernel.org # 4.4, 4.9 Reviewed-by: Andrew Jones <drjones@redhat.com> Link: https://lore.kernel.org/r/20210311100016.3830038-3-maz@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: hdpvr: Fix an error handling path in hdpvr_probe()Arvind Yadav2021-03-171-14/+19
| | | | | | | | | | | | | | | | | | | | | commit c0f71bbb810237a38734607ca4599632f7f5d47f upstream. Here, hdpvr_register_videodev() is responsible for setup and register a video device. Also defining and initializing a worker. hdpvr_register_videodev() is calling by hdpvr_probe at last. So no need to flush any work here. Unregister v4l2, free buffers and memory. If hdpvr_probe() will fail. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Tested-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> [krzk: backport to v4.4, still using single thread workqueue which is drained/destroyed now in proper step so it cannot be NULL] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* powerpc/64s: Fix instruction encoding for lis in ppc_function_entry()Naveen N. Rao2021-03-171-1/+1
| | | | | | | | | | | | | | | | | commit cea15316ceee2d4a51dfdecd79e08a438135416c upstream. 'lis r2,N' is 'addis r2,0,N' and the instruction encoding in the macro LIS_R2 is incorrect (it currently maps to 'addis r0,r2,N'). Fix the same. Fixes: c71b7eff426f ("powerpc: Add ABIv2 support to ppc_function_entry") Cc: stable@vger.kernel.org # v3.16+ Reported-by: Jiri Olsa <jolsa@redhat.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210304020411.16796-1-naveen.n.rao@linux.vnet.ibm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: switch __copy_user() and __do_clean_user() to normal calling conventionsAl Viro2021-03-175-252/+151
| | | | | | | | | | | commit 8525023121de4848b5f0a7d867ffeadbc477774d upstream. They used to need odd calling conventions due to old exception handling mechanism, the last remnants of which had disappeared back in 2002. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: get rid of tail-zeroing in __copy_user()Al Viro2021-03-173-41/+7
| | | | | | | | | | commit 085354f907969fb3ee33f236368f6e1dd4c74d62 upstream. ... and adjust copy_from_user() accordingly Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: move exports to actual definitionsAl Viro2021-03-1741-131/+99
| | | | | | | | commit 00fc0e0dda6286407f3854cd71a125f519a5689c upstream. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: Package string routines togetherRichard Henderson2021-03-171-6/+16
| | | | | | | | | | | | commit 4758ce82e66711b1a4557577e30a5f9b88d4a4b5 upstream. There are direct branches between {str*cpy,str*cat} and stx*cpy. Ensure the branches are within range by merging these objects. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Matt Turner <mattst88@gmail.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: make short build log available for division routinesMasahiro Yamada2021-03-171-2/+2
| | | | | | | | | | | | | | | commit 3eec0291830e4c28d09f73bab247f3b59172022b upstream. This enables the Kbuild standard log style as follows: AS arch/alpha/lib/__divlu.o AS arch/alpha/lib/__divqu.o AS arch/alpha/lib/__remlu.o AS arch/alpha/lib/__remqu.o Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: merge build rules of division routinesMasahiro Yamada2021-03-171-7/+2
| | | | | | | | | | | commit e19a4e3f1bffe45b8e2ea67fcfb0c9c88278c4cc upstream. These four objects are generated by the same build rule, with different compile options. The build rules can be merged. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* alpha: add $(src)/ rather than $(obj)/ to make source file pathMasahiro Yamada2021-03-171-4/+4
| | | | | | | | | | | commit 5ed78e5523fd9ba77b8444d380d54da1f88c53fc upstream. $(ev6-y)divide.S is a source file, not a build-time generated file. So, it should be prefixed with $(src)/ rather than $(obj)/. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* block: rsxx: fix error return code of rsxx_pci_probe()Jia-Ju Bai2021-03-171-0/+1
| | | | | | | | | | | | | | | | [ Upstream commit df66617bfe87487190a60783d26175b65d2502ce ] When create_singlethread_workqueue returns NULL to card->event_wq, no error return code of rsxx_pci_probe() is assigned. To fix this bug, st is assigned with -ENOMEM in this case. Fixes: 8722ff8cdbfa ("block: IBM RamSan 70/80 device driver") Reported-by: TOTE Robot <oslab@tsinghua.edu.cn> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Link: https://lore.kernel.org/r/20210310033017.4023-1-baijiaju1990@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
* NFSv4.2: fix return value of _nfs4_get_security_label()Ondrej Mosnacek2021-03-171-1/+1
| | | | | | | | | | | | | | | | | | | [ Upstream commit 53cb245454df5b13d7063162afd7a785aed6ebf2 ] An xattr 'get' handler is expected to return the length of the value on success, yet _nfs4_get_security_label() (and consequently also nfs4_xattr_get_nfs4_label(), which is used as an xattr handler) returns just 0 on success. Fix this by returning label.len instead, which contains the length of the result. Fixes: aa9c2669626c ("NFS: Client implementation of Labeled-NFS") Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Reviewed-by: James Morris <jamorris@linux.microsoft.com> Reviewed-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
* staging: comedi: pcl818: Fix endian problem for AI command dataIan Abbott2021-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | commit 148e34fd33d53740642db523724226de14ee5281 upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the call to `comedi_buf_write_samples()` is passing the address of a 32-bit integer parameter. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the parameter holding the sample value to `unsigned short`. [Note: the bug was introduced in commit edf4537bcbf5 ("staging: comedi: pcl818: use comedi_buf_write_samples()") but the patch applies better to commit d615416de615 ("staging: comedi: pcl818: introduce pcl818_ai_write_sample()").] Fixes: d615416de615 ("staging: comedi: pcl818: introduce pcl818_ai_write_sample()") Cc: <stable@vger.kernel.org> # 4.0+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-10-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: pcl711: Fix endian problem for AI command dataIan Abbott2021-03-171-1/+1
| | | | | | | | | | | | | | | | | commit a084303a645896e834883f2c5170d044410dfdb3 upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the call to `comedi_buf_write_samples()` is passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variable holding the sample value to `unsigned short`. Fixes: 1f44c034de2e ("staging: comedi: pcl711: use comedi_buf_write_samples()") Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-9-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: me4000: Fix endian problem for AI command dataIan Abbott2021-03-171-1/+1
| | | | | | | | | | | | | | | | | commit b39dfcced399d31e7c4b7341693b18e01c8f655e upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the calls to `comedi_buf_write_samples()` are passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variable holding the sample value to `unsigned short`. Fixes: de88924f67d1 ("staging: comedi: me4000: use comedi_buf_write_samples()") Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-8-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: dmm32at: Fix endian problem for AI command dataIan Abbott2021-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | commit 54999c0d94b3c26625f896f8e3460bc029821578 upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the call to `comedi_buf_write_samples()` is passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variable holding the sample value to `unsigned short`. [Note: the bug was introduced in commit 1700529b24cc ("staging: comedi: dmm32at: use comedi_buf_write_samples()") but the patch applies better to the later (but in the same kernel release) commit 0c0eadadcbe6e ("staging: comedi: dmm32at: introduce dmm32_ai_get_sample()").] Fixes: 0c0eadadcbe6e ("staging: comedi: dmm32at: introduce dmm32_ai_get_sample()") Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-7-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: das800: Fix endian problem for AI command dataIan Abbott2021-03-171-1/+1
| | | | | | | | | | | | | | | | | commit 459b1e8c8fe97fcba0bd1b623471713dce2c5eaf upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the call to `comedi_buf_write_samples()` is passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variable holding the sample value to `unsigned short`. Fixes: ad9eb43c93d8 ("staging: comedi: das800: use comedi_buf_write_samples()") Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-6-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: das6402: Fix endian problem for AI command dataIan Abbott2021-03-171-1/+1
| | | | | | | | | | | | | | | | | commit 1c0f20b78781b9ca50dc3ecfd396d0db5b141890 upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the call to `comedi_buf_write_samples()` is passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variable holding the sample value to `unsigned short`. Fixes: d1d24cb65ee3 ("staging: comedi: das6402: read analog input samples in interrupt handler") Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-5-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: adv_pci1710: Fix endian problem for AI command dataIan Abbott2021-03-171-5/+5
| | | | | | | | | | | | | | | | | | | | | commit b2e78630f733a76508b53ba680528ca39c890e82 upstream. The analog input subdevice supports Comedi asynchronous commands that use Comedi's 16-bit sample format. However, the calls to `comedi_buf_write_samples()` are passing the address of a 32-bit integer variable. On bigendian machines, this will copy 2 bytes from the wrong end of the 32-bit value. Fix it by changing the type of the variables holding the sample value to `unsigned short`. The type of the `val` parameter of `pci1710_ai_read_sample()` is changed to `unsigned short *` accordingly. The type of the `val` variable in `pci1710_ai_insn_read()` is also changed to `unsigned short` since its address is passed to `pci1710_ai_read_sample()`. Fixes: a9c3a015c12f ("staging: comedi: adv_pci1710: use comedi_buf_write_samples()") Cc: <stable@vger.kernel.org> # 4.0+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-4-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: addi_apci_1500: Fix endian problem for command sampleIan Abbott2021-03-171-9/+9
| | | | | | | | | | | | | | | | | | commit ac0bbf55ed3be75fde1f8907e91ecd2fd589bde3 upstream. The digital input subdevice supports Comedi asynchronous commands that read interrupt status information. This uses 16-bit Comedi samples (of which only the bottom 8 bits contain status information). However, the interrupt handler is calling `comedi_buf_write_samples()` with the address of a 32-bit variable `unsigned int status`. On a bigendian machine, this will copy 2 bytes from the wrong end of the variable. Fix it by changing the type of the variable to `unsigned short`. Fixes: a8c66b684efa ("staging: comedi: addi_apci_1500: rewrite the subdevice support functions") Cc: <stable@vger.kernel.org> #4.0+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-3-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: comedi: addi_apci_1032: Fix endian problem for COS sampleIan Abbott2021-03-171-1/+3
| | | | | | | | | | | | | | | | | commit 25317f428a78fde71b2bf3f24d05850f08a73a52 upstream. The Change-Of-State (COS) subdevice supports Comedi asynchronous commands to read 16-bit change-of-state values. However, the interrupt handler is calling `comedi_buf_write_samples()` with the address of a 32-bit integer `&s->state`. On bigendian architectures, it will copy 2 bytes from the wrong end of the 32-bit integer. Fix it by transferring the value via a 16-bit integer. Fixes: 6bb45f2b0c86 ("staging: comedi: addi_apci_1032: use comedi_buf_write_samples()") Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Link: https://lore.kernel.org/r/20210223143055.257402-2-abbotti@mev.co.uk Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: rtl8192e: Fix possible buffer overflow in _rtl92e_wx_set_scanLee Gibson2021-03-171-3/+4
| | | | | | | | | | | | | | commit 8687bf9ef9551bcf93897e33364d121667b1aadf upstream. Function _rtl92e_wx_set_scan calls memcpy without checking the length. A user could control that length and trigger a buffer overflow. Fix by checking the length is within the maximum allowed size. Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Lee Gibson <leegib@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210226145157.424065-1-leegib@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: rtl8712: Fix possible buffer overflow in r8712_sitesurvey_cmdLee Gibson2021-03-171-2/+4
| | | | | | | | | | | | | commit b93c1e3981af19527beee1c10a2bef67a228c48c upstream. Function r8712_sitesurvey_cmd calls memcpy without checking the length. A user could control that length and trigger a buffer overflow. Fix by checking the length is within the maximum allowed size. Signed-off-by: Lee Gibson <leegib@gmail.com> Link: https://lore.kernel.org/r/20210301132648.420296-1-leegib@gmail.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: rtl8188eu: fix potential memory corruption in rtw_check_beacon_data()Dan Carpenter2021-03-171-0/+5
| | | | | | | | | | | | | | commit d4ac640322b06095128a5c45ba4a1e80929fe7f3 upstream. The "ie_len" is a value in the 1-255 range that comes from the user. We have to cap it to ensure that it's not too large or it could lead to memory corruption. Fixes: 9a7fe54ddc3a ("staging: r8188eu: Add source files for new driver - part 1") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/YEHyQCrFZKTXyT7J@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: rtl8712: unterminated string leads to read overflowDan Carpenter2021-03-171-1/+1
| | | | | | | | | | | | | | commit d660f4f42ccea50262c6ee90c8e7ad19a69fb225 upstream. The memdup_user() function does not necessarily return a NUL terminated string so this can lead to a read overflow. Switch from memdup_user() to strndup_user() to fix this bug. Fixes: c6dc001f2add ("staging: r8712u: Merging Realtek's latest (v2.6.6). Various fixes.") Cc: stable <stable@vger.kernel.org> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YDYSR+1rj26NRhvb@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: rtl8188eu: prevent ->ssid overflow in rtw_wx_set_scan()Dan Carpenter2021-03-171-2/+4
| | | | | | | | | | | | | commit 74b6b20df8cfe90ada777d621b54c32e69e27cd7 upstream. This code has a check to prevent read overflow but it needs another check to prevent writing beyond the end of the ->ssid[] array. Fixes: a2c60d42d97c ("staging: r8188eu: Add files for new driver - part 16") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/YEHymwsnHewzoam7@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* staging: rtl8192u: fix ->ssid overflow in r8192_wx_set_scan()Dan Carpenter2021-03-171-2/+4
| | | | | | | | | | | | | commit 87107518d7a93fec6cdb2559588862afeee800fb upstream. We need to cap len at IW_ESSID_MAX_SIZE (32) to avoid memory corruption. This can be controlled by the user via the ioctl. Fixes: 5f53d8ca3d5d ("Staging: add rtl8192SU wireless usb driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/YEHoAWMOSZBUw91F@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usbip: fix stub_dev usbip_sockfd_store() races leading to gpfShuah Khan2021-03-171-7/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 9380afd6df70e24eacbdbde33afc6a3950965d22 upstream. usbip_sockfd_store() is invoked when user requests attach (import) detach (unimport) usb device from usbip host. vhci_hcd sends import request and usbip_sockfd_store() exports the device if it is free for export. Export and unexport are governed by local state and shared state - Shared state (usbip device status, sockfd) - sockfd and Device status are used to determine if stub should be brought up or shut down. - Local state (tcp_socket, rx and tx thread task_struct ptrs) A valid tcp_socket controls rx and tx thread operations while the device is in exported state. - While the device is exported, device status is marked used and socket, sockfd, and thread pointers are valid. Export sequence (stub-up) includes validating the socket and creating receive (rx) and transmit (tx) threads to talk to the client to provide access to the exported device. rx and tx threads depends on local and shared state to be correct and in sync. Unexport (stub-down) sequence shuts the socket down and stops the rx and tx threads. Stub-down sequence relies on local and shared states to be in sync. There are races in updating the local and shared status in the current stub-up sequence resulting in crashes. These stem from starting rx and tx threads before local and global state is updated correctly to be in sync. 1. Doesn't handle kthread_create() error and saves invalid ptr in local state that drives rx and tx threads. 2. Updates tcp_socket and sockfd, starts stub_rx and stub_tx threads before updating usbip_device status to SDEV_ST_USED. This opens up a race condition between the threads and usbip_sockfd_store() stub up and down handling. Fix the above problems: - Stop using kthread_get_run() macro to create/start threads. - Create threads and get task struct reference. - Add kthread_create() failure handling and bail out. - Hold usbip_device lock to update local and shared states after creating rx and tx threads. - Update usbip_device status to SDEV_ST_USED. - Update usbip_device tcp_socket, sockfd, tcp_rx, and tcp_tx - Start threads after usbip_device (tcp_socket, sockfd, tcp_rx, tcp_tx, and status) is complete. Credit goes to syzbot and Tetsuo Handa for finding and root-causing the kthread_get_run() improper error handling problem and others. This is a hard problem to find and debug since the races aren't seen in a normal case. Fuzzing forces the race window to be small enough for the kthread_get_run() error path bug and starting threads before updating the local and shared state bug in the stub-up sequence. Tested with syzbot reproducer: - https://syzkaller.appspot.com/text?tag=ReproC&x=14801034d00000 Fixes: 9720b4bc76a83807 ("staging/usbip: convert to kthread") Cc: stable@vger.kernel.org Reported-by: syzbot <syzbot+a93fba6d384346a761e3@syzkaller.appspotmail.com> Reported-by: syzbot <syzbot+bf1a360e305ee719e364@syzkaller.appspotmail.com> Reported-by: syzbot <syzbot+95ce4b142579611ef0a9@syzkaller.appspotmail.com> Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/268a0668144d5ff36ec7d87fdfa90faf583b7ccc.1615171203.git.skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usbip: fix vhci_hcd to check for stream socketShuah Khan2021-03-171-1/+9
| | | | | | | | | | | | | | commit f55a0571690c4aae03180e001522538c0927432f upstream. Fix attach_store() to validate the passed in file descriptor is a stream socket. If the file descriptor passed was a SOCK_DGRAM socket, sock_recvmsg() can't detect end of stream. Cc: stable@vger.kernel.org Suggested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/52712aa308915bda02cece1589e04ee8b401d1f3.1615171203.git.skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usbip: fix stub_dev to check for stream socketShuah Khan2021-03-171-1/+11
| | | | | | | | | | | | | | commit 47ccc8fc2c9c94558b27b6f9e2582df32d29e6e8 upstream. Fix usbip_sockfd_store() to validate the passed in file descriptor is a stream socket. If the file descriptor passed was a SOCK_DGRAM socket, sock_recvmsg() can't detect end of stream. Cc: stable@vger.kernel.org Suggested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/e942d2bd03afb8e8552bd2a5d84e18d17670d521.1615171203.git.skhan@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: serial: cp210x: add some more GE USB IDsSebastian Reichel2021-03-171-0/+2
| | | | | | | | | | | | commit 42213a0190b535093a604945db05a4225bf43885 upstream. GE CS1000 has some more custom USB IDs for CP2102N; add them to the driver to have working auto-probing. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: serial: cp210x: add ID for Acuity Brands nLight Air AdapterKaran Singhal2021-03-171-0/+1
| | | | | | | | | | | | | commit ca667a33207daeaf9c62b106815728718def60ec upstream. IDs of nLight Air Adapter, Acuity Brands, Inc.: vid: 10c4 pid: 88d8 Signed-off-by: Karan Singhal <karan.singhal@acuitybrands.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: serial: ch341: add new Product IDNiv Sardi2021-03-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 5563b3b6420362c8a1f468ca04afe6d5f0a8d0a3 upstream. Add PID for CH340 that's found on cheap programmers. The driver works flawlessly as soon as the new PID (0x9986) is added to it. These look like ANU232MI but ship with a ch341 inside. They have no special identifiers (mine only has the string "DB9D20130716" printed on the PCB and nothing identifiable on the packaging. The merchant i bought it from doesn't sell these anymore). the lsusb -v output is: Bus 001 Device 009: ID 9986:7523 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x9986 idProduct 0x7523 bcdDevice 2.54 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0027 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 96mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 1 bInterfaceProtocol 2 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0020 1x 32 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 1 Signed-off-by: Niv Sardi <xaiki@evilgiggle.com> Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* USB: serial: io_edgeport: fix memory leak in edge_startupPavel Skripkin2021-03-171-10/+16
| | | | | | | | | | | | | | | commit cfdc67acc785e01a8719eeb7012709d245564701 upstream. sysbot found memory leak in edge_startup(). The problem was that when an error was received from the usb_submit_urb(), nothing was cleaned up. Reported-by: syzbot+59f777bdcbdd7eea5305@syzkaller.appspotmail.com Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Fixes: 6e8cf7751f9f ("USB: add EPIC support to the io_edgeport driver") Cc: stable@vger.kernel.org # 2.6.21: c5c0c55598ce Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xhci: Improve detection of device initiated wake signal.Mathias Nyman2021-03-171-3/+13
| | | | | | | | | | | | | | | | | | | | | | | | | commit 253f588c70f66184b1f3a9bbb428b49bbda73e80 upstream. A xHC USB 3 port might miss the first wake signal from a USB 3 device if the port LFPS reveiver isn't enabled fast enough after xHC resume. xHC host will anyway be resumed by a PME# signal, but will go back to suspend if no port activity is seen. The device resends the U3 LFPS wake signal after a 100ms delay, but by then host is already suspended, starting all over from the beginning of this issue. USB 3 specs say U3 wake LFPS signal is sent for max 10ms, then device needs to delay 100ms before resending the wake. Don't suspend immediately if port activity isn't detected in resume. Instead add a retry. If there is no port activity then delay for 120ms, and re-check for port activity. Cc: <stable@vger.kernel.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20210311115353.2137560-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: renesas_usbhs: Clear PIPECFG for re-enabling pipe with other EPNUMYoshihiro Shimoda2021-03-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | commit b1d25e6ee57c2605845595b6c61340d734253eb3 upstream. According to the datasheet, this controller has a restriction which "set an endpoint number so that combinations of the DIR bit and the EPNUM bits do not overlap.". However, since the udc core driver is possible to assign a bulk pipe as an interrupt endpoint, an endpoint number may not match the pipe number. After that, when user rebinds another gadget driver, this driver broke the restriction because the driver didn't clear any configuration in usb_ep_disable(). Example: # modprobe g_ncm Then, EP3 = pipe 3, EP4 = pipe 4, EP5 = pipe 6 # rmmod g_ncm # modprobe g_hid Then, EP3 = pipe 6, EP4 = pipe 7. So, pipe 3 and pipe 6 are set as EP3. So, clear PIPECFG register in usbhs_pipe_free(). Fixes: dfb87b8bfe09 ("usb: renesas_usbhs: gadget: fix re-enabling pipe without re-connecting") Cc: stable <stable@vger.kernel.org> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Link: https://lore.kernel.org/r/1615168538-26101-1-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* usb: gadget: f_uac2: always increase endpoint max_packet_size by one audio slotRuslan Bilovol2021-03-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 789ea77310f0200c84002884ffd628e2baf3ad8a upstream. As per UAC2 Audio Data Formats spec (2.3.1.1 USB Packets), if the sampling rate is a constant, the allowable variation of number of audio slots per virtual frame is +/- 1 audio slot. It means that endpoint should be able to accept/send +1 audio slot. Previous endpoint max_packet_size calculation code was adding sometimes +1 audio slot due to DIV_ROUND_UP behaviour which was rounding up to closest integer. However this doesn't work if the numbers are divisible. It had no any impact with Linux hosts which ignore this issue, but in case of more strict Windows it caused rejected enumeration Thus always add +1 audio slot to endpoint's max packet size Fixes: 913e4a90b6f9 ("usb: gadget: f_uac2: finalize wMaxPacketSize according to bandwidth") Cc: Peter Chen <peter.chen@freescale.com> Cc: <stable@vger.kernel.org> #v4.3+ Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Link: https://lore.kernel.org/r/1614599375-8803-2-git-send-email-ruslan.bilovol@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Goodix Fingerprint device is not a modemYorick de Wid2021-03-171-0/+5
| | | | | | | | | | | | | | | | | | | commit 4d8654e81db7346f915eca9f1aff18f385cab621 upstream. The CDC ACM driver is false matching the Goodix Fingerprint device against the USB_CDC_ACM_PROTO_AT_V25TER. The Goodix Fingerprint device is a biometrics sensor that should be handled in user-space. libfprint has some support for Goodix fingerprint sensors, although not for this particular one. It is possible that the vendor allocates a PID per OEM (Lenovo, Dell etc). If this happens to be the case then more devices from the same vendor could potentially match the ACM modem module table. Signed-off-by: Yorick de Wid <ydewid@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210213144901.53199-1-ydewid@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* libertas: fix a potential NULL pointer dereferenceAllen Pais2021-03-171-0/+5
| | | | | | | | | | | | | | commit 7da413a18583baaf35dd4a8eb414fa410367d7f2 upstream. alloc_workqueue is not checked for errors and as a result, a potential NULL dereference could occur. Signed-off-by: Allen Pais <allen.pais@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> [krzk: backport applied to different path - without marvell subdir] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section namesJoe Lawrence2021-03-172-1/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 9c8e2f6d3d361439cc6744a094f1c15681b55269 upstream. When building with -ffunction-sections, the compiler will place each function into its own ELF section, prefixed with ".text". For example, a simple test module with functions test_module_do_work() and test_module_wq_func(): % objdump --section-headers test_module.o | awk '/\.text/{print $2}' .text .text.test_module_do_work .text.test_module_wq_func .init.text .exit.text Adjust the recordmcount scripts to look for ".text" as a section name prefix. This will ensure that those functions will be included in the __mcount_loc relocations: % objdump --reloc --section __mcount_loc test_module.o OFFSET TYPE VALUE 0000000000000000 R_X86_64_64 .text.test_module_do_work 0000000000000008 R_X86_64_64 .text.test_module_wq_func 0000000000000010 R_X86_64_64 .init.text Link: http://lkml.kernel.org/r/1542745158-25392-2-git-send-email-joe.lawrence@redhat.com Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> [Manoj: Resolve conflict on 4.4.y/4.9.y because of missing 42c269c88dc1] Signed-off-by: Manoj Gupta <manojgupta@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mmc: core: Fix partition switch time for eMMCAdrian Hunter2021-03-171-4/+11
| | | | | | | | | | | | | | | | | | commit 66fbacccbab91e6e55d9c8f1fc0910a8eb6c81f7 upstream. Avoid the following warning by always defining partition switch time: [ 3.209874] mmc1: unspecified timeout for CMD6 - use generic [ 3.222780] ------------[ cut here ]------------ [ 3.233363] WARNING: CPU: 1 PID: 111 at drivers/mmc/core/mmc_ops.c:575 __mmc_switch+0x200/0x204 Reported-by: Paul Fertser <fercerpav@gmail.com> Fixes: 1c447116d017 ("mmc: mmc: Fix partition switch timeout for some eMMCs") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Link: https://lore.kernel.org/r/168bbfd6-0c5b-5ace-ab41-402e7937c46e@intel.com Cc: stable@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* s390/dasd: fix hanging DASD driver unbindStefan Haberland2021-03-171-2/+1
| | | | | | | | | | | | | | | | | | | | | | commit 7d365bd0bff3c0310c39ebaffc9a8458e036d666 upstream. In case of an unbind of the DASD device driver the function dasd_generic_remove() is called which shuts down the device. Among others this functions removes the int_handler from the cdev. During shutdown the device cancels all outstanding IO requests and waits for completion of the clear request. Unfortunately the clear interrupt will never be received when there is no interrupt handler connected. Fix by moving the int_handler removal after the call to the state machine where no request or interrupt is outstanding. Cc: stable@vger.kernel.org Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Tested-by: Bjoern Walk <bwalk@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ALSA: usb-audio: Fix "cannot get freq eq" errors on Dell AE515 sound barTakashi Iwai2021-03-171-0/+1
| | | | | | | | | | | | | | commit fec60c3bc5d1713db2727cdffc638d48f9c07dc3 upstream. Dell AE515 sound bar (413c:a506) spews the error messages when the driver tries to read the current sample frequency, hence it needs to be on the list in snd_usb_get_sample_rate_quirk(). BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=211551 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210304083021.2152-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ALSA: hda: Avoid spurious unsol event handling during S3/S4Takashi Iwai2021-03-171-0/+4
| | | | | | | | | | | | | | | | | | | | | | | commit 5ff9dde42e8c72ed8102eb8cb62e03f9dc2103ab upstream. When HD-audio bus receives unsolicited events during its system suspend/resume (S3 and S4) phase, the controller driver may still try to process events although the codec chips are already (or yet) powered down. This might screw up the codec communication, resulting in CORB/RIRB errors. Such events should be rather skipped, as the codec chip status such as the jack status will be fully refreshed at the system resume time. Since we're tracking the system suspend/resume state in codec power.power_state field, let's add the check in the common unsol event handler entry point to filter out such events. BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1182377 Tested-by: Abhishek Sahu <abhsahu@nvidia.com> Cc: <stable@vger.kernel.org> # 183ab39eb0ea: ALSA: hda: Initialize power_state Link: https://lore.kernel.org/r/20210310112809.9215-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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