- 23 Feb, 2017 40 commits
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Paul Jakma authored
commit 2ab13292 upstream. The BRIM Brothers Zone DPMX is a bicycle powermeter. This ID is for the USB serial interface in its charging dock for the control pods, via which some settings for the pods can be modified. Signed-off-by:
Paul Jakma <paul@jakma.org> Cc: Barry Redmond <barry@brimbrothers.com> Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
Ben Hutchings <ben@decadent.org.uk>
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Johan Hovold authored
commit 722f1910 upstream. Make sure to drop the reference taken by bus_find_device_by_name() before returning from mfd_clone_cell(). Fixes: a9bbba99 ("mfd: add platform_device sharing support for mfd") Signed-off-by:
Lee Jones <lee.jones@linaro.org> Signed-off-by:
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Petr Vandrovec authored
commit 2ce9d227 upstream. Some code (all error handling) submits CDBs that are allocated on the stack. This breaks with CB/CBI code that tries to create URB directly from SCSI command buffer - which happens to be in vmalloced memory with vmalloced kernel stacks. Let's make copy of the command in usb_stor_CB_transport. Signed-off-by:
Petr Vandrovec <petr@vandrovec.name> Acked-by:
Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Sean Young authored
commit ba13e98f upstream. When receiving a nec repeat, ensure the correct scancode is repeated rather than a random value from the stack. This removes the need for the bogus uninitialized_var() and also fixes the warnings: drivers/media/usb/dvb-usb/dib0700_core.c: In function ‘dib0700_rc_urb_completion’: drivers/media/usb/dvb-usb/dib0700_core.c:679: warning: ‘protocol’ may be used uninitialized in this function [sean addon: So after writing the patch and submitting it, I've bought the hardware on ebay. Without this patch you get random scancodes on nec repeats, which the patch indeed fixes.] Signed-off-by:
Sean Young <sean@mess.org> Tested-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org> [bwh: Backported to 3.2: adjust filename, context] Signed-off-by:
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Andrey Ryabinin authored
commit 70d78fe7 upstream. It could be not possible to freeze coredumping task when it waits for 'core_state->startup' completion, because threads are frozen in get_signal() before they got a chance to complete 'core_state->startup'. Inability to freeze a task during suspend will cause suspend to fail. Also CRIU uses cgroup freezer during dump operation. So with an unfreezable task the CRIU dump will fail because it waits for a transition from 'FREEZING' to 'FROZEN' state which will never happen. Use freezer_do_not_count() to tell freezer to ignore coredumping task while it waits for core_state->startup completion. Link: http://lkml.kernel.org/r/1475225434-3753-1-git-send-email-aryabinin@virtuozzo.comSigned-off-by:
Andrey Ryabinin <aryabinin@virtuozzo.com> Acked-by:
Pavel Machek <pavel@ucw.cz> Acked-by:
Oleg Nesterov <oleg@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Tejun Heo <tj@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Jann Horn authored
commit dd111be6 upstream. When root activates a swap partition whose header has the wrong endianness, nr_badpages elements of badpages are swabbed before nr_badpages has been checked, leading to a buffer overrun of up to 8GB. This normally is not a security issue because it can only be exploited by root (more specifically, a process with CAP_SYS_ADMIN or the ability to modify a swap file/partition), and such a process can already e.g. modify swapped-out memory of any other userspace process on the system. Link: http://lkml.kernel.org/r/1477949533-2509-1-git-send-email-jann@thejh.netSigned-off-by:
Jann Horn <jann@thejh.net> Acked-by:
Kees Cook <keescook@chromium.org> Acked-by:
Jerome Marchand <jmarchan@redhat.com> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Hugh Dickins <hughd@google.com> Signed-off-by:
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Mathias Krause authored
commit f567e950 upstream. To avoid having dangling function pointers left behind, reset calcit in rtnl_unregister(), too. This is no issue so far, as only the rtnl core registers a netlink handler with a calcit hook which won't be unregistered, but may become one if new code makes use of the calcit hook. Fixes: c7ac8679 ("rtnetlink: Compute and store minimum ifinfo...") Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Signed-off-by:
Mathias Krause <minipli@googlemail.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Sumit Saxena authored
commit 5e5ec175 upstream. This patch will fix regression caused by commit 1e793f6f ("scsi: megaraid_sas: Fix data integrity failure for JBOD (passthrough) devices"). The problem was that the MEGASAS_IS_LOGICAL macro did not have braces and as a result the driver ended up exposing a lot of non-existing SCSI devices (all SCSI commands to channels 1,2,3 were returned as SUCCESS-DID_OK by driver). [mkp: clarified patch description] Fixes: 1e793f6fReported-by:
Jens Axboe <axboe@kernel.dk> Signed-off-by:
Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by:
Sumit Saxena <sumit.saxena@broadcom.com> Tested-by:
Tomas Henzl <thenzl@redhat.com> Tested-by:
Jens Axboe <axboe@fb.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Fabio Estevam authored
commit f91346e8 upstream. An interrupt may occur right after devm_request_irq() is called and prior to the spinlock initialization, leading to a kernel oops, as the interrupt handler uses the spinlock. In order to prevent this problem, move the spinlock initialization prior to requesting the interrupts. Fixes: e4243f13 (mmc: mxs-mmc: add mmc host driver for i.MX23/28) Signed-off-by:
Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by:
Marek Vasut <marex@denx.de> Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Doug Brown authored
commit 9bfef729 upstream. This patch adds support for the TI CC3200 LaunchPad board, which uses a custom USB vendor ID and product ID. Channel A is used for JTAG, and channel B is used for a UART. Signed-off-by:
Doug Brown <doug@schmorgal.com> Signed-off-by:
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Vladimir Zapolskiy authored
commit 147b36d5 upstream. Race condition between registering an I2C device driver and deregistering an I2C adapter device which is assumed to manage that I2C device may lead to a NULL pointer dereference due to the uninitialized list head of driver clients. The root cause of the issue is that the I2C bus may know about the registered device driver and thus it is matched by bus_for_each_drv(), but the list of clients is not initialized and commonly it is NULL, because I2C device drivers define struct i2c_driver as static and clients field is expected to be initialized by I2C core: i2c_register_driver() i2c_del_adapter() driver_register() ... bus_add_driver() ... ... bus_for_each_drv(..., __process_removed_adapter) ... i2c_do_del_adapter() ... list_for_each_entry_safe(..., &driver->clients, ...) INIT_LIST_HEAD(&driver->clients); To solve the problem it is sufficient to do clients list head initialization before calling driver_register(). The problem was found while using an I2C device driver with a sluggish registration routine on a bus provided by a physically detachable I2C master controller, but practically the oops may be reproduced under the race between arbitraty I2C device driver registration and managing I2C bus device removal e.g. by unbinding the latter over sysfs: % echo 21a4000.i2c > /sys/bus/platform/drivers/imx-i2c/unbind Unable to handle kernel NULL pointer dereference at virtual address 00000000 Internal error: Oops: 17 [#1] SMP ARM CPU: 2 PID: 533 Comm: sh Not tainted 4.9.0-rc3+ #61 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) task: e5ada400 task.stack: e4936000 PC is at i2c_do_del_adapter+0x20/0xcc LR is at __process_removed_adapter+0x14/0x1c Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 10c5387d Table: 35bd004a DAC: 00000051 Process sh (pid: 533, stack limit = 0xe4936210) Stack: (0xe4937d28 to 0xe4938000) Backtrace: [<c0667be0>] (i2c_do_del_adapter) from [<c0667cc0>] (__process_removed_adapter+0x14/0x1c) [<c0667cac>] (__process_removed_adapter) from [<c0516998>] (bus_for_each_drv+0x6c/0xa0) [<c051692c>] (bus_for_each_drv) from [<c06685ec>] (i2c_del_adapter+0xbc/0x284) [<c0668530>] (i2c_del_adapter) from [<bf0110ec>] (i2c_imx_remove+0x44/0x164 [i2c_imx]) [<bf0110a8>] (i2c_imx_remove [i2c_imx]) from [<c051a838>] (platform_drv_remove+0x2c/0x44) [<c051a80c>] (platform_drv_remove) from [<c05183d8>] (__device_release_driver+0x90/0x12c) [<c0518348>] (__device_release_driver) from [<c051849c>] (device_release_driver+0x28/0x34) [<c0518474>] (device_release_driver) from [<c0517150>] (unbind_store+0x80/0x104) [<c05170d0>] (unbind_store) from [<c0516520>] (drv_attr_store+0x28/0x34) [<c05164f8>] (drv_attr_store) from [<c0298acc>] (sysfs_kf_write+0x50/0x54) [<c0298a7c>] (sysfs_kf_write) from [<c029801c>] (kernfs_fop_write+0x100/0x214) [<c0297f1c>] (kernfs_fop_write) from [<c0220130>] (__vfs_write+0x34/0x120) [<c02200fc>] (__vfs_write) from [<c0221088>] (vfs_write+0xa8/0x170) [<c0220fe0>] (vfs_write) from [<c0221e74>] (SyS_write+0x4c/0xa8) [<c0221e28>] (SyS_write) from [<c0108a20>] (ret_fast_syscall+0x0/0x1c) Signed-off-by:
Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by:
Wolfram Sang <wsa@the-dreams.de> Signed-off-by:
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Eric Dumazet authored
commit 990ff4d8 upstream. While fuzzing kernel with syzkaller, Andrey reported a nasty crash in inet6_bind() caused by DCCP lacking a required method. Fixes: ab1e0a13 ("[SOCK] proto: Add hashinfo member to struct proto") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
Andrey Konovalov <andreyknvl@google.com> Tested-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Oliver Neukum authored
commit cf0ea4da upstream. Like many similar devices it needs a quirk to work. Issuing the request gets the device into an irrecoverable state. Signed-off-by:
Oliver Neukum <oneukum@suse.com> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Laura Abbott authored
commit 849eca7b upstream. Like other KVM switches, the Aten DVI KVM switch needs a quirk to avoid spewing errors: [791759.606542] usb 1-5.4: input irq status -75 received [791759.614537] usb 1-5.4: input irq status -75 received [791759.622542] usb 1-5.4: input irq status -75 received Add it. Signed-off-by:
Laura Abbott <labbott@fedoraproject.org> Signed-off-by:
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Stefan Richter authored
commit e9300a4b upstream. RFC 2734 defines the datagram_size field in fragment encapsulation headers thus: datagram_size: The encoded size of the entire IP datagram. The value of datagram_size [...] SHALL be one less than the value of Total Length in the datagram's IP header (see STD 5, RFC 791). Accordingly, the eth1394 driver of Linux 2.6.36 and older set and got this field with a -/+1 offset: ether1394_tx() /* transmit */ ether1394_encapsulate_prep() hdr->ff.dg_size = dg_size - 1; ether1394_data_handler() /* receive */ if (hdr->common.lf == ETH1394_HDR_LF_FF) dg_size = hdr->ff.dg_size + 1; else dg_size = hdr->sf.dg_size + 1; Likewise, I observe OS X 10.4 and Windows XP Pro SP3 to transmit 1500 byte sized datagrams in fragments with datagram_size=1499 if link fragmentation is required. Only firewire-net sets and gets datagram_size without this offset. The result is lacking interoperability of firewire-net with OS X, Windows XP, and presumably Linux' eth1394. (I did not test with the latter.) For example, FTP data transfers to a Linux firewire-net box with max_rec smaller than the 1500 bytes MTU - from OS X fail entirely, - from Win XP start out with a bunch of fragmented datagrams which time out, then continue with unfragmented datagrams because Win XP temporarily reduces the MTU to 576 bytes. So let's fix firewire-net's datagram_size accessors. Note that firewire-net thereby loses interoperability with unpatched firewire-net, but only if link fragmentation is employed. (This happens with large broadcast datagrams, and with large datagrams on several FireWire CardBus cards with smaller max_rec than equivalent PCI cards, and it can be worked around by setting a small enough MTU.) Signed-off-by:
Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by:
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John David Anglin authored
commit 6ed51832 upstream. We have one critical section in the syscall entry path in which we switch from the userspace stack to kernel stack. In the event of an external interrupt, the interrupt code distinguishes between those two states by analyzing the value of sr7. If sr7 is zero, it uses the kernel stack. Therefore it's important, that the value of sr7 is in sync with the currently enabled stack. This patch now disables interrupts while executing the critical section. This prevents the interrupt handler to possibly see an inconsistent state which in the worst case can lead to crashes. Interestingly, in the syscall exit path interrupts were already disabled in the critical section which switches back to the userspace stack. Signed-off-by:
John David Anglin <dave.anglin@bell.net> Signed-off-by:
Helge Deller <deller@gmx.de> Signed-off-by:
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Eli Cooper authored
commit 23f4ffed upstream. skb->cb may contain data from previous layers. In the observed scenario, the garbage data were misinterpreted as IP6CB(skb)->frag_max_size, so that small packets sent through the tunnel are mistakenly fragmented. This patch unconditionally clears the control buffer in ip6tunnel_xmit(), which affects ip6_tunnel, ip6_udp_tunnel and ip6_gre. Currently none of these tunnels set IP6CB(skb)->flags, otherwise it needs to be done earlier. Signed-off-by:
Eli Cooper <elicooper@gmx.com> Signed-off-by:
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Johan Hovold authored
commit d6124b40 upstream. This subsystem consistently fails to drop the device reference taken by class_find_device(). Note that some of these lookup functions already take a reference to the returned data, while others claim no reference is needed (or does not seem need one). Fixes: 183b9b59 ("uwb: add the UWB stack (core files)") Signed-off-by:
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Felipe Balbi authored
commit fd9afd3c upstream. According to Dave Miller "the networking stack has a hard requirement that all SKBs which are transmitted must have their completion signalled in a fininte amount of time. This is because, until the SKB is freed by the driver, it holds onto socket, netfilter, and other subsystem resources." In summary, this means that using TX IRQ throttling for the networking gadgets is, at least, complex and we should avoid it for the time being. Reported-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Tested-by:
Felipe Balbi <felipe.balbi@linux.intel.com> [bwh: Backported to 3.2: adjust filename, context] Signed-off-by:
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Oliver Hartkopp authored
commit deb507f9 upstream. Andrey Konovalov reported an issue with proc_register in bcm.c. As suggested by Cong Wang this patch adds a lock_sock() protection and a check for unsuccessful proc_create_data() in bcm_connect(). Reference: http://marc.info/?l=linux-netdev&m=147732648731237Reported-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
Oliver Hartkopp <socketcan@hartkopp.net> Acked-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
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Jakub Sitnicki authored
commit f89c56ce upstream. Similar to commit c146066a ("ipv4: Don't use ufo handling on later transformed packets"), don't perform UFO on packets that will be IPsec transformed. To detect it we rely on the fact that headerlen in dst_entry is non-zero only for transformation bundles (xfrm_dst objects). Unwanted segmentation can be observed with a NETIF_F_UFO capable device, such as a dummy device: DEV=dum0 LEN=1493 ip li add $DEV type dummy ip addr add fc00::1/64 dev $DEV nodad ip link set $DEV up ip xfrm policy add dir out src fc00::1 dst fc00::2 \ tmpl src fc00::1 dst fc00::2 proto esp spi 1 ip xfrm state add src fc00::1 dst fc00::2 \ proto esp spi 1 enc 'aes' 0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b tcpdump -n -nn -i $DEV -t & socat /dev/zero,readbytes=$LEN udp6:[fc00::2]:$LEN tcpdump output before: IP6 fc00::1 > fc00::2: frag (0|1448) ESP(spi=0x00000001,seq=0x1), length 1448 IP6 fc00::1 > fc00::2: frag (1448|48) IP6 fc00::1 > fc00::2: ESP(spi=0x00000001,seq=0x2), length 88 ... and after: IP6 fc00::1 > fc00::2: frag (0|1448) ESP(spi=0x00000001,seq=0x1), length 1448 IP6 fc00::1 > fc00::2: frag (1448|80) Fixes: e89e9cf5 ("[IPv4/IPv6]: UFO Scatter-gather approach") Signed-off-by:
Jakub Sitnicki <jkbs@redhat.com> Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
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Erez Shitrit authored
commit 8d59de8f upstream. Currently there is a race between incoming traffic and initialization flow. HW is able to receive the packets after INIT_PORT is done and unicast steering is configured. Before we set priv->port_up NAPI is not scheduled and receive queues become full. Therefore we never get new interrupts about the completions. This issue could happen if running heavy traffic during bringing port up. The resolution is to schedule NAPI once port_up is set. If receive queues were full this will process all cqes and release them. Fixes: c27a02cd ("mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC") Signed-off-by:
Erez Shitrit <erezsh@mellanox.com> Signed-off-by:
Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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Richard Weinberger authored
commit a00052a2 upstream. Commit c83ed4c9 ("ubifs: Abort readdir upon error") broke overlayfs support because the fix exposed an internal error code to VFS. Reported-by:
Peter Rosin <peda@axentia.se> Tested-by:
Ralph Sennhauser <ralph.sennhauser@gmail.com> Tested-by:
Richard Weinberger <richard@nod.at> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Ido Yariv authored
commit bd768e14 upstream. vcpu->arch.wbinvd_dirty_mask may still be used after freeing it, corrupting memory. For example, the following call trace may set a bit in an already freed cpu mask: kvm_arch_vcpu_load vcpu_load vmx_free_vcpu_nested vmx_free_vcpu kvm_arch_vcpu_free Fix this by deferring freeing of wbinvd_dirty_mask. Signed-off-by:
Ido Yariv <ido@wizery.com> Reviewed-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
Radim Krčmář <rkrcmar@redhat.com> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Daniel Mentz authored
commit 62e931fa upstream. gen_pool_alloc_algo() iterates over the chunks of a pool trying to find a contiguous block of memory that satisfies the allocation request. The shortcut if (size > atomic_read(&chunk->avail)) continue; makes the loop skip over chunks that do not have enough bytes left to fulfill the request. There are two situations, though, where an allocation might still fail: (1) The available memory is not contiguous, i.e. the request cannot be fulfilled due to external fragmentation. (2) A race condition. Another thread runs the same code concurrently and is quicker to grab the available memory. In those situations, the loop calls pool->algo() to search the entire chunk, and pool->algo() returns some value that is >= end_bit to indicate that the search failed. This return value is then assigned to start_bit. The variables start_bit and end_bit describe the range that should be searched, and this range should be reset for every chunk that is searched. Today, the code fails to reset start_bit to 0. As a result, prefixes of subsequent chunks are ignored. Memory allocations might fail even though there is plenty of room left in these prefixes of those other chunks. Fixes: 7f184275 ("lib, Make gen_pool memory allocator lockless") Link: http://lkml.kernel.org/r/1477420604-28918-1-git-send-email-danielmentz@google.comSigned-off-by:
Daniel Mentz <danielmentz@google.com> Reviewed-by:
Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Acked-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
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Ulrich Weber authored
commit 444f9017 upstream. on SIP requests, so a fragmented TCP SIP packet from an allow header starting with INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE,SUBSCRIBE Content-Length: 0 will not bet interpreted as an INVITE request. Also Request-URI must start with an alphabetic character. Confirm with RFC 3261 Request-Line = Method SP Request-URI SP SIP-Version CRLF Fixes: 30f33e6d ("[NETFILTER]: nf_conntrack_sip: support method specific request/response handling") Signed-off-by:
Ulrich Weber <ulrich.weber@riverbed.com> Acked-by:
Marco Angaroni <marcoangaroni@gmail.com> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Scot Doyle authored
commit 009e39ae upstream. When resizing a vt its selection may exceed the new size, resulting in an invalid memory access [1]. Clear the selection before resizing. [1] http://lkml.kernel.org/r/CACT4Y+acDTwy4umEvf5ROBGiRJNrxHN4Cn5szCXE5Jw-d1B=Xw@mail.gmail.comReported-and-tested-by:
Dmitry Vyukov <dvyukov@google.com> Signed-off-by:
Scot Doyle <lkml14@scotdoyle.com> Signed-off-by:
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Dmitry Vyukov authored
commit 32b2921e upstream. Size of kmalloc() in vc_do_resize() is controlled by user. Too large kmalloc() size triggers WARNING message on console. Put a reasonable upper bound on terminal size to prevent WARNINGs. Signed-off-by:
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Jiri Slaby authored
commit 42acfc66 upstream. In csi_J(3), the third parameter of scr_memsetw (vc_screenbuf_size) is divided by 2 inappropriatelly. But scr_memsetw expects size, not count, because it divides the size by 2 on its own before doing actual memset-by-words. So remove the bogus division. Signed-off-by:
Jiri Slaby <jslaby@suse.cz> Cc: Petr Písař <ppisar@redhat.com> Fixes: f8df13e0 (tty: Clean console safely) Signed-off-by:
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Marcel Hasler authored
commit bdc3478f upstream. The stk1160 chip needs QUIRK_AUDIO_ALIGN_TRANSFER. This patch resolves the issue reported on the mailing list (http://marc.info/?l=linux-sound&m=139223599126215&w=2) and also fixes bug 180071 (https://bugzilla.kernel.org/show_bug.cgi?id=180071). Signed-off-by:
Marcel Hasler <mahasler@gmail.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Ching Huang authored
commit 2bf7dc84 upstream. The arcmsr driver failed to pass SYNCHRONIZE CACHE to controller firmware. Depending on how drive caches are handled internally by controller firmware this could potentially lead to data integrity problems. Ensure that cache flushes are passed to the controller. [mkp: applied by hand and removed unused vars] Signed-off-by:
Ching Huang <ching2048@areca.com.tw> Reported-by:
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Ewan D. Milne authored
commit 4d2b496f upstream. map_storep was not being vfree()'d in the module_exit call. Signed-off-by:
Ewan D. Milne <emilne@redhat.com> Reviewed-by:
Laurence Oberman <loberman@redhat.com> Signed-off-by:
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Arnd Bergmann authored
commit 34eee70a upstream. The ad5933_i2c_read function returns an error code to indicate whether it could read data or not. However ad5933_work() ignores this return code and just accesses the data unconditionally, which gets detected by gcc as a possible bug: drivers/staging/iio/impedance-analyzer/ad5933.c: In function 'ad5933_work': drivers/staging/iio/impedance-analyzer/ad5933.c:649:16: warning: 'status' may be used uninitialized in this function [-Wmaybe-uninitialized] This adds minimal error handling so we only evaluate the data if it was correctly read. Link: https://patchwork.kernel.org/patch/8110281/Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Jonathan Cameron <jic23@kernel.org> [bwh: Backported to 3.2: adjust context] Signed-off-by:
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Long Li authored
commit 407a3aee upstream. The host keeps sending heartbeat packets independent of the guest responding to them. Even though we respond to the heartbeat messages at interrupt level, we can have situations where there maybe multiple heartbeat messages pending that have not been responded to. For instance this occurs when the VM is paused and the host continues to send the heartbeat messages. Address this issue by draining and responding to all the heartbeat messages that maybe pending. Signed-off-by:
Long Li <longli@microsoft.com> Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
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Kashyap Desai authored
commit 1e793f6f upstream. Commit 02b01e01 ("megaraid_sas: return sync cache call with success") modified the driver to successfully complete SYNCHRONIZE_CACHE commands without passing them to the controller. Disk drive caches are only explicitly managed by controller firmware when operating in RAID mode. So this commit effectively disabled writeback cache flushing for any drives used in JBOD mode, leading to data integrity failures. [mkp: clarified patch description] Fixes: 02b01e01Signed-off-by:
Hannes Reinecke <hare@suse.com> Reviewed-by:
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tang.junhui authored
commit dafa724b upstream. dm_get_target_type() was previously called so any error returned from dm_table_add_target() must first call dm_put_target_type(). Otherwise the DM target module's reference count will leak and the associated kernel module will be unable to be removed. Also, leverage the fact that r is already -EINVAL and remove an extra newline. Fixes: 36a0456f ("dm table: add immutable feature") Fixes: cc6cbe14 ("dm table: add always writeable feature") Fixes: 3791e2fc ("dm table: add singleton feature") Signed-off-by:
tang.junhui <tang.junhui@zte.com.cn> Signed-off-by:
Mike Snitzer <snitzer@redhat.com> [bwh: Backported to 3.2: adjuat context] Signed-off-by:
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Punit Agrawal authored
commit 806487a8 upstream. Although ghes_proc() tests for errors while reading the error status, it always return success (0). Fix this by propagating the return value. Fixes: d334a491 (ACPI, APEI, Generic Hardware Error Source memory error support) Signed-of-by:
Punit Agrawal <punit.agrawa.@arm.com> Tested-by:
Tyler Baicar <tbaicar@codeaurora.org> Reviewed-by:
Borislav Petkov <bp@suse.de> [ rjw: Subject ] Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by:
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Segher Boessenkool authored
commit 80f23935 upstream. PowerPC's "cmp" instruction has four operands. Normally people write "cmpw" or "cmpd" for the second cmp operand 0 or 1. But, frequently people forget, and write "cmp" with just three operands. With older binutils this is silently accepted as if this was "cmpw", while often "cmpd" is wanted. With newer binutils GAS will complain about this for 64-bit code. For 32-bit code it still silently assumes "cmpw" is what is meant. In this instance the code comes directly from ISA v2.07, including the cmp, but cmpd is correct. Backport to stable so that new toolchains can build old kernels. Fixes: 948cf67c ("powerpc: Add NAP mode support on Power7 in HV mode") Reviewed-by:
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by:
Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au> [bwh: Backported to 3.2: adjust filename, context] Signed-off-by:
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Mathias Nyman authored
commit 4c39135a upstream. xHC in Wildcatpoint-LP PCH is similar to LynxPoint-LP and need the same quirks to prevent machines from spurious restart while shutting them down. Reported-by:
Hasan Mahmood <hasan.mahm@gmail.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
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Richard Weinberger authored
commit c83ed4c9 upstream. If UBIFS is facing an error while walking a directory, it reports this error and ubifs_readdir() returns the error code. But the VFS readdir logic does not make the getdents system call fail in all cases. When the readdir cursor indicates that more entries are present, the system call will just return and the libc wrapper will try again since it also knows that more entries are present. This causes the libc wrapper to busy loop for ever when a directory is corrupted on UBIFS. A common approach do deal with corrupted directory entries is skipping them by setting the cursor to the next entry. On UBIFS this approach is not possible since we cannot compute the next directory entry cursor position without reading the current entry. So all we can do is setting the cursor to the "no more entries" position and make getdents exit. Signed-off-by:
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