- 27 Jan, 2016 31 commits
-
-
Arnd Bergmann authored
commit 3e7a8716 upstream. Not all architectures are able to call __builtin_return_address(). On ARM, the mISDN code produces this warning: hardware/mISDN/w6692.c: In function 'w6692_dctrl': hardware/mISDN/w6692.c:1181:75: warning: unsupported argument to '__builtin_return_address' pr_debug("%s: %s dev(%d) open from %p\n", card->name, __func__, ^ hardware/mISDN/mISDNipac.c: In function 'open_dchannel': hardware/mISDN/mISDNipac.c:759:75: warning: unsupported argument to '__builtin_return_address' pr_debug("%s: %s dev(%d) open from %p\n", isac->name, __func__, ^ In a lot of cases, this is relatively easy to work around by passing the value of __builtin_return_address(0) from the callers into the functions that want it. One exception is the indirect 'open' function call in struct isac_hw. While it would be possible to fix this as well, this patch only addresses the other callers properly and lets this one return the direct parent function, which should be good enough. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Jiri Slaby <jslaby@suse.cz>
-
Paul Bolle authored
commit 298589b1 upstream. Building mem.o for 32 bits x86 triggers a GCC warning: drivers/infiniband/hw/cxgb4/mem.c: In function '_c4iw_write_mem_dma_aligned': drivers/infiniband/hw/cxgb4/mem.c:79:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Silence that warning by casting "&wr_wait" to unsigned long before casting it to __be64. That's what _c4iw_write_mem_inline() already does. Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Acked-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
Roland Dreier <roland@purestorage.com> Signed-off-by:
-
Kees Cook authored
commit 7d196ac3 upstream. When CONFIG_FRAME_WARN is set low (e.g. some ARM builds), the hard-coded stack buffer size used for kernel stack over run testing triggers build warnings. Instead, avoid the warning by recalcuating the buffer size and recursion count needed to trigger the test. Also uses the recursion counter indirectly to avoid changing the parameter during the test. Signed-off-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
-
Fabio Estevam authored
commit 71473dbd upstream. With CONFIG_ACPI=n the following build warning is seen: drivers/gpu/drm/radeon/ni_dpm.c:3448:31: warning: unused variable 'eg_pi' [-Wunused-variable] Move the definition of eg_pi inside the CONFIG_ACPI 'if' block. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
-
Alex Deucher authored
commit 936b3264 upstream. With CONFIG_ACPI=n the following build warning is seen: drivers/gpu/drm/radeon/cypress_dpm.c:302:31: warning: unused variable 'eg_pi' [-Wunused-variable] Protect eg_pi with CONFIG_ACPI. Based on patch from: Fabio Estevam <fabio.estevam@freescale.com> but doesn't mix allocation and code. Signed-off-by:
-
Uwe Kleine-König authored
commit e16343c4 upstream. The warning was introduced in 2009 (commit 4bf1fa5a ([ARM] 5613/1: implement CALLER_ADDRESSx)). The only "problem" here is that CALLER_ADDRESSx for x > 1 returns NULL which doesn't do much harm. The drawback of implementing a fix (i.e. use unwind tables to implement CALLER_ADDRESSx) is that much of the unwinder code would need to be marked as not traceable. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
-
Behan Webster authored
commit aeea3592 upstream. With compilers which follow the C99 standard (like modern versions of gcc and clang), "extern inline" does the wrong thing (emits code for an externally linkable version of the inline function). In this case using static inline and removing the NULL version of return_address in return_address.c does the right thing. Signed-off-by:
Behan Webster <behanw@converseincode.com> Reviewed-by:
Mark Charlebois <charlebm@gmail.com> Acked-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
-
Oliver Neukum authored
commit 1eaf35e4 upstream. The module should fail to load. Signed-off-by:
Oliver Neukum <oneukum@suse.com> Signed-off-by:
-
Oliver Freyermuth authored
commit f7d7f59a upstream. Add the USB device ID for ELV Marble Sound Board 1. Signed-off-by:
Oliver Freyermuth <o.freyermuth@googlemail.com> Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
-
Dan Carpenter authored
commit abdc9a3b upstream. The code expects the loop to end with "retries" set to zero but, because it is a post-op, it will end set to -1. I have fixed this by moving the decrement inside the loop. Fixes: 014aa2a3 ('USB: ipaq: minor ipaq_open() cleanup.') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
-
Chunfeng Yun authored
commit 096b110a upstream. if a full speed hub connects to a high speed hub which supports MTT, the MTT field of its slot context will be set to 1 when xHCI driver setups an xHCI virtual device in xhci_setup_addressable_virt_dev(); once usb core fetch its hub descriptor, and need to update the xHC's internal data structures for the device, the HUB field of its slot context will be set to 1 too, meanwhile MTT is also set before, this will cause configure endpoint command fail, so in the case, we should clear MTT to 0 for full speed hub according to section 6.2.2 Signed-off-by:
Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by:
Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by:
-
Vinod Koul authored
commit a1068045 upstream. The detection of direction for compress was only taking into account codec capabilities and not CPU ones. Fix this by checking the CPU side capabilities as well Tested-by:
Ashish Panwar <ashish.panwar@intel.com> Signed-off-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
-
Nikesh Oswal authored
commit e73694d8 upstream. For a sample rate of 12kHz the bclk was taken from the 44.1kHz table as we test for a multiple of 8kHz. This patch fixes this issue by testing for multiples of 4kHz instead. Signed-off-by:
Nikesh Oswal <Nikesh.Oswal@cirrus.com> Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
-
Sachin Pandhare authored
commit e9f96bc5 upstream. From datasheet: R17408 (4400h) HPF_C_1 R17409 (4401h) HPF_C_0 17048 -> 17408 (0x4400) 17049 -> 17409 (0x4401) Signed-off-by:
Sachin Pandhare <sachinpandhare@gmail.com> Acked-by:
-
Takashi Iwai authored
commit c0bcdbdf upstream. When a TLV ioctl with numid zero is handled, the driver may spew a kernel warning with a stack trace at each call. The check was intended obviously only for a kernel driver, but not for a user interaction. Let's fix it. This was spotted by syzkaller fuzzer. Reported-by:
Dmitry Vyukov <dvyukov@google.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
-
Takashi Iwai authored
commit 2ba1fe7a upstream. hrtimer_cancel() waits for the completion from the callback, thus it must not be called inside the callback itself. This was already a problem in the past with ALSA hrtimer driver, and the early commit [fcfdebe7: ALSA: hrtimer - Fix lock-up] tried to address it. However, the previous fix is still insufficient: it may still cause a lockup when the ALSA timer instance reprograms itself in its callback. Then it invokes the start function even in snd_timer_interrupt() that is called in hrtimer callback itself, results in a CPU stall. This is no hypothetical problem but actually triggered by syzkaller fuzzer. This patch tries to fix the issue again. Now we call hrtimer_try_to_cancel() at both start and stop functions so that it won't fall into a deadlock, yet giving some chance to cancel the queue if the functions have been called outside the callback. The proper hrtimer_cancel() is called in anyway at closing, so this should be enough. Reported-and-tested-by:
-
Nicolas Boichat authored
commit 43c54b8c upstream. This reverts one hunk of commit ef44a1ec ("ALSA: sound/core: use memdup_user()"), which replaced a number of kmalloc followed by memcpy with memdup calls. In this case, we are copying from a struct snd_pcm_hw_params32 to a struct snd_pcm_hw_params, but the latter is 4 bytes longer than the 32-bit version, so we need to separate kmalloc and copy calls. This actually leads to an out-of-bounds memory access later on in sound/soc/soc-pcm.c:soc_pcm_hw_params() (detected using KASan). Fixes: ef44a1ec ('ALSA: sound/core: use memdup_user()') Signed-off-by:
Nicolas Boichat <drinkcat@chromium.org> Signed-off-by:
-
Nicolas Boichat authored
commit 9586495d upstream. This reverts one hunk of commit ef44a1ec ("ALSA: sound/core: use memdup_user()"), which replaced a number of kmalloc followed by memcpy with memdup calls. In this case, we are copying from a struct snd_seq_port_info32 to a struct snd_seq_port_info, but the latter is 4 bytes longer than the 32-bit version, so we need to separate kmalloc and copy calls. Fixes: ef44a1ec ('ALSA: sound/core: use memdup_user()') Signed-off-by:
-
Takashi Iwai authored
commit ee8413b0 upstream. ALSA timer instance object has a couple of linked lists and they are unlinked unconditionally at snd_timer_stop(). Meanwhile snd_timer_interrupt() unlinks it, but it calls list_del() which leaves the element list itself unchanged. This ends up with unlinking twice, and it was caught by syzkaller fuzzer. The fix is to use list_del_init() variant properly there, too. Reported-by:
-
Takashi Iwai authored
commit af368027 upstream. ALSA timer ioctls have an open race and this may lead to a use-after-free of timer instance object. A simplistic fix is to make each ioctl exclusive. We have already tread_sem for controlling the tread, and extend this as a global mutex to be applied to each ioctl. The downside is, of course, the worse concurrency. But these ioctls aren't to be parallel accessible, in anyway, so it should be fine to serialize there. Reported-by:
-
Takashi Iwai authored
commit b5a663aa upstream. A slave timer instance might be still accessible in a racy way while operating the master instance as it lacks of locking. Since the master operation is mostly protected with timer->lock, we should cope with it while changing the slave instance, too. Also, some linked lists (active_list and ack_list) of slave instances aren't unlinked immediately at stopping or closing, and this may lead to unexpected accesses. This patch tries to address these issues. It adds spin lock of timer->lock (either from master or slave, which is equivalent) in a few places. For avoiding a deadlock, we ensure that the global slave_active_lock is always locked at first before each timer lock. Also, ack and active_list of slave instances are properly unlinked at snd_timer_stop() and snd_timer_close(). Last but not least, remove the superfluous call of _snd_timer_stop() at removing slave links. This is a noop, and calling it may confuse readers wrt locking. Further cleanup will follow in a later patch. Actually we've got reports of use-after-free by syzkaller fuzzer, and this hopefully fixes these issues. Reported-by:
-
Takashi Iwai authored
commit 3567eb6a upstream. ALSA sequencer code has an open race between the timer setup ioctl and the close of the client. This was triggered by syzkaller fuzzer, and a use-after-free was caught there as a result. This patch papers over it by adding a proper queue->timer_mutex lock around the timer-related calls in the relevant code path. Reported-by:
-
Takashi Iwai authored
commit 030e2c78 upstream. snd_seq_ioctl_remove_events() calls snd_seq_fifo_clear() unconditionally even if there is no FIFO assigned, and this leads to an Oops due to NULL dereference. The fix is just to add a proper NULL check. Reported-by:
-
Mario Kleiner authored
commit 9f660a1c upstream. Without this patch, internal speaker and line-out work, but front headphone output jack stays silent on the Mac Pro 4,1. This code path also gets executed on the MacPro 5,1 due to identical codec SSID, but i don't know if it has any positive or adverse effects there or not. (v2) Implement feedback from Takashi Iwai: Reuse alc889_fixup_mbp_vref and just add a new nid 0x19 for the MacPro 4,1. Signed-off-by:
Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by:
-
Xiong Zhang authored
commit 3e6db33a upstream. It takes three minutes to enter into hibernation on some OEM SKL machines and we see many codec spurious response after thaw() opertion. This is because HDA is still in D0 state after freeze() call and pci_pm_freeze/pci_pm_freeze_noirq() don't set D3 hot in pci_bus driver. It seems bios still access HDA when system enter into freeze state, HDA will receive codec response interrupt immediately after thaw() call. Because of this unexpected interrupt, HDA enter into a abnormal state and slow down the system enter into hibernation. In this patch, we put HDA into D3 hot state in azx_freeze_noirq() and put HDA into D0 state in azx_thaw_noirq(). V2: Only apply this fix to SKL+ Fix compile error when CONFIG_PM_SLEEP isn't defined [Yet another fix for CONFIG_PM_SLEEP ifdef and the additional comment by tiwai] Signed-off-by:
Xiong Zhang <xiong.y.zhang@intel.com> Signed-off-by:
-
David Henningsson authored
commit 02f6ff90 upstream. On the internal mic of the Packard Bell DOTS, one channel has an inverted signal. Add a quirk to fix this up. BugLink: https://bugs.launchpad.net/bugs/1523232Signed-off-by:
David Henningsson <david.henningsson@canonical.com> Signed-off-by:
-
Takashi Iwai authored
commit a74a8216 upstream. rme96 driver needs to reset DAC depending on the sample rate, and this results in resetting to the max volume suddenly. It's because of the missing call of snd_rme96_apply_dac_volume(). However, calling this function right after the DAC reset still may not work, and we need some delay before this call. Since the DAC reset and the procedure after that are performed in the spinlock, we delay the DAC volume restore at the end after the spinlock. Reported-and-tested-by:
Sylvain LABOISNE <maeda1@free.fr> Signed-off-by:
-
Jiri Slaby authored
-
Ben Hutchings authored
commit 4ab42d78 upstream. Currently slhc_init() treats out-of-range values of rslots and tslots as equivalent to 0, except that if tslots is too large it will dereference a null pointer (CVE-2015-7799). Add a range-check at the top of the function and make it return an ERR_PTR() on error instead of NULL. Change the callers accordingly. Compile-tested only. Reported-by:
郭永刚 <guoyonggang@360.cn> References: http://article.gmane.org/gmane.comp.security.oss.general/17908Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
-
Ben Hutchings authored
commit 0baa57d8 upstream. Compile-tested only. Signed-off-by:
-
Vineet Gupta authored
commit 30b9dbee upstream. Signed-off-by:
-
- 25 Jan, 2016 9 commits
-
-
Vineet Gupta authored
commit 9acdc911 upstream. Signed-off-by:
Vineet Gupta <vgupta@synopsys.com> Signed-off-by:
-
Takashi Iwai authored
commit c932b98c upstream. HP ProBook 6550b needs the same pin fixup applied to other HP B-series laptops with docks for making its headphone and dock headphone jacks working properly. We just need to add the codec SSID to the list. Bugzilla: https://bugzilla.kernel.org/attachment.cgi?id=191971Signed-off-by:
-
Alexandra Yates authored
commit 5cf92c8b upstream. Adding Intel codename Lewisburg platform device IDs for audio. [rearranged the position by tiwai] Signed-off-by:
Alexandra Yates <alexandra.yates@linux.intel.com> Signed-off-by:
-
Jan Stancek authored
commit 27f972d3 upstream. We encountered a panic on boot in ipmi_si on a dell per320 due to an uninitialized timer as follows. static int smi_start_processing(void *send_info, ipmi_smi_t intf) { /* Try to claim any interrupts. */ if (new_smi->irq_setup) new_smi->irq_setup(new_smi); --> IRQ arrives here and irq handler tries to modify uninitialized timer which triggers BUG_ON(!timer->function) in __mod_timer(). Call Trace: <IRQ> [<ffffffffa0532617>] start_new_msg+0x47/0x80 [ipmi_si] [<ffffffffa053269e>] start_check_enables+0x4e/0x60 [ipmi_si] [<ffffffffa0532bd8>] smi_event_handler+0x1e8/0x640 [ipmi_si] [<ffffffff810f5584>] ? __rcu_process_callbacks+0x54/0x350 [<ffffffffa053327c>] si_irq_handler+0x3c/0x60 [ipmi_si] [<ffffffff810efaf0>] handle_IRQ_event+0x60/0x170 [<ffffffff810f245e>] handle_edge_irq+0xde/0x180 [<ffffffff8100fc59>] handle_irq+0x49/0xa0 [<ffffffff8154643c>] do_IRQ+0x6c/0xf0 [<ffffffff8100ba53>] ret_from_intr+0x0/0x11 /* Set up the timer that drives the interface. */ setup_timer(&new_smi->si_timer, smi_timeout, (long)new_smi); The following patch fixes the problem. To: Openipmi-developer@lists.sourceforge.net To: Corey Minyard <minyard@acm.org> CC: linux-kernel@vger.kernel.org Signed-off-by:
Jan Stancek <jstancek@redhat.com> Signed-off-by:
Tony Camuso <tcamuso@redhat.com> Signed-off-by:
Corey Minyard <cminyard@mvista.com> Signed-off-by:
-
H.J. Lu authored
commit 8c31902c upstream. When decompressing kernel image during x86 bootup, malloc memory for ELF program headers may run out of heap space, which leads to system halt. This patch doubles BOOT_HEAP_SIZE to 64KB. Tested with 32-bit kernel which failed to boot without this patch. Signed-off-by:
H.J. Lu <hjl.tools@gmail.com> Acked-by:
H. Peter Anvin <hpa@zytor.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
-
Mario Kleiner authored
commit 2f0c0b2d upstream. Without the reboot=pci method, the iMac 10,1 simply hangs after printing "Restarting system" at the point when it should reboot. This fixes it. Signed-off-by:
-
Paul Mackerras authored
commit c20875a3 upstream. Currently it is possible for userspace (e.g. QEMU) to set a value for the MSR for a guest VCPU which has both of the TS bits set, which is an illegal combination. The result of this is that when we execute a hrfid (hypervisor return from interrupt doubleword) instruction to enter the guest, the CPU will take a TM Bad Thing type of program interrupt (vector 0x700). Now, if PR KVM is configured in the kernel along with HV KVM, we actually handle this without crashing the host or giving hypervisor privilege to the guest; instead what happens is that we deliver a program interrupt to the guest, with SRR0 reflecting the address of the hrfid instruction and SRR1 containing the MSR value at that point. If PR KVM is not configured in the kernel, then we try to run the host's program interrupt handler with the MMU set to the guest context, which almost certainly causes a host crash. This closes the hole by making kvmppc_set_msr_hv() check for the illegal combination and force the TS field to a safe value (00, meaning non-transactional). Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
-
Ouyang Zhaowei (Charles) authored
commit 6a1f5137 upstream. On a cancelled suspend the vcpu_info location does not change (it's still in the per-cpu area registered by xen_vcpu_setup()). So do not call xen_hvm_init_shared_info() which would make the kernel think its back in the shared info. With the wrong vcpu_info, events cannot be received and the domain will hang after a cancelled suspend. Signed-off-by:
Charles Ouyang <ouyangzhaowei@huawei.com> Reviewed-by:
Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by:
David Vrabel <david.vrabel@citrix.com> Signed-off-by:
-
Boris Ostrovsky authored
commit 9c17d965 upstream. Doing so will cause the grant to be unmapped and then, during fault handling, the fault to be mistakenly treated as NUMA hint fault. In addition, even if those maps could partcipate in NUMA balancing, it wouldn't provide any benefit since we are unable to determine physical page's node (even if/when VNUMA is implemented). Marking grant maps' VMAs as VM_IO will exclude them from being part of NUMA balancing. Signed-off-by:
-
