- 17 Apr, 2015 4 commits
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Lars-Peter Clausen authored
[ Upstream commit 328f494d ] When inserting a new register into a block at the lower end the present bitmap is currently shifted into the wrong direction. The effect of this is that the bitmap becomes corrupted and registers which are present might be reported as not present and vice versa. Fix this by shifting left rather than right. Fixes: 472fdec7("regmap: rbtree: Reduce number of nodes, take 2") Reported-by:
Daniel Baluta <daniel.baluta@gmail.com> Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org Signed-off-by:
Sasha Levin <sasha.levin@oracle.com>
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Yongbae Park authored
[ Upstream commit 1096be08 ] The interrupt is enabled before the handler is set. Even this bug did not appear, it is potentially dangerous as it can lead to a NULL pointer dereference. Fix the error by enabling the interrupt after clockevents_config_and_register() is called. Cc: stable@vger.kernel.org Signed-off-by:
Yongbae Park <yongbae2@gmail.com> Signed-off-by:
Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by:
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Michael S. Tsirkin authored
[ Upstream commit 3d2a3774 ] virtio balloon has this code: wait_event_interruptible(vb->config_change, (diff = towards_target(vb)) != 0 || vb->need_stats_update || kthread_should_stop() || freezing(current)); Which is a problem because towards_target() call might block after wait_event_interruptible sets task state to TAST_INTERRUPTIBLE, causing the task_struct::state collision typical of nesting of sleeping primitives See also http://lwn.net/Articles/628628/ or Thomas's bug report http://article.gmane.org/gmane.linux.kernel.virtualization/24846 for a fuller explanation. To fix, rewrite using wait_woken. Cc: stable@vger.kernel.org Reported-by:
Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Tested-by:
Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Peter Zijlstra authored
[ Upstream commit 61ada528 ] There are a few places that call blocking primitives from wait loops, provide infrastructure to support this without the typical task_struct::state collision. We record the wakeup in wait_queue_t::flags which leaves task_struct::state free to be used by others. Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by:
Oleg Nesterov <oleg@redhat.com> Cc: tglx@linutronix.de Cc: ilya.dryomov@inktank.com Cc: umgwanakikbuti@gmail.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20140924082242.051202318@infradead.orgSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
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- 09 Apr, 2015 17 commits
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Michael S. Tsirkin authored
[ Upstream commit 88660f7f ] virtio spec requires that all drivers set DRIVER_OK before using devices. While balloon isn't yet included in the virtio 1 spec, previous spec versions also required this. virtio balloon might violate this rule: probe calls kthread_run before setting DRIVER_OK, which might run immediately and cause balloon to inflate/deflate. To fix, call virtio_device_ready before running the kthread. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 07892b10 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
Takashi Iwai <tiwai@suse.de> Acked-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 2bf4c1d4 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 08641d9b ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit eaddf6fd ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 24cc883c ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 00a14c29 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit bd14016f ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit 4c523ef6 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit b4a18c8b ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit d223b0e7 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Takashi Iwai authored
[ Upstream commit e8371aa0 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
Paul Handrigan <Paul.Handrigan@cirrus.com> Signed-off-by:
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Takashi Iwai authored
[ Upstream commit d7f58db4 ] The correct values referred by a boolean control are value.integer.value[], not value.enumerated.item[]. The former is long while the latter is int, so it's even incompatible on 64bit architectures. Signed-off-by:
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Eric Nelson authored
[ Upstream commit c7d910b8 ] The SGTL5000_CHIP_ANA_POWER register is cached. Update the cached value instead of writing it directly. Patch inspired by Russell King's more colorful remarks in this patch: https://github.com/SolidRun/linux-imx6-3.14/commit/dd4bf6aSigned-off-by:
Eric Nelson <eric.nelson@boundarydevices.com> Signed-off-by:
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Lars-Peter Clausen authored
[ Upstream commit cdd3d2a9 ] Routes without a control must use NULL for the control name. The sn95031 driver uses "NULL" instead in a few places. Previous to commit 5fe5b767 ("ASoC: dapm: Do not pretend to support controls for non mixer/mux widgets") the DAPM core silently ignored non-NULL controls on non-mixer and non-mux routes. But starting with that commit it will complain and not add the route breaking the sn95031 driver in the process. This patch replaces the incorrect "NULL" control name with NULL to fix the issue. Fixes: 5fe5b767 ("ASoC: dapm: Do not pretend to support controls for non mixer/mux widgets") Signed-off-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
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Lars-Peter Clausen authored
[ Upstream commit ce9594c6 ] Routes without a control must use NULL for the control name. The ak4671 driver uses "NULL" instead in a few places. Previous to commit 5fe5b767 ("ASoC: dapm: Do not pretend to support controls for non mixer/mux widgets") the DAPM core silently ignored non-NULL controls on non-mixer and non-mux routes. But starting with that commit it will complain and not add the route breaking the ak4671 driver in the process. This patch replaces the incorrect "NULL" control name with NULL to fix the issue. Fixes: 5fe5b767 ("ASoC: dapm: Do not pretend to support controls for non mixer/mux widgets") Signed-off-by:
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Lars-Peter Clausen authored
[ Upstream commit 8e6a75c1 ] Routes without a control must use NULL for the control name. The da732x driver uses "NULL" instead in a few places. Previous to commit 5fe5b767 ("ASoC: dapm: Do not pretend to support controls for non mixer/mux widgets") the DAPM core silently ignored non-NULL controls on non-mixer and non-mux routes. But starting with that commit it will complain and not add the route breaking the da732x driver in the process. This patch replaces the incorrect "NULL" control name with NULL to fix the issue. Fixes: 5fe5b767 ("ASoC: dapm: Do not pretend to support controls for non mixer/mux widgets") Signed-off-by:
Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by:
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- 04 Apr, 2015 1 commit
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Sasha Levin authored
Signed-off-by:
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- 28 Mar, 2015 18 commits
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Nicholas Bellinger authored
[ Upstream commit 215a8fe4 ] This patch fixes a NULL pointer dereference OOPs with pSCSI backends within target_core_stat.c code. The bug is caused by a configfs attr read if no pscsi_dev_virt->pdv_sd has been configured. Reported-by:
Olaf Hering <olaf@aepfle.de> Cc: <stable@vger.kernel.org> Signed-off-by:
Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by:
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Nicholas Bellinger authored
[ Upstream commit f068fbc8 ] This patch fixes a iser specific logout bug where early complete() of conn->conn_logout_comp in iscsit_close_connection() was causing isert_wait4logout() to complete too soon, triggering a use after free NULL pointer dereference of iscsi_conn memory. The complete() was originally added for traditional iscsi-target when a ISCSI_LOGOUT_OP failed in iscsi_target_rx_opcode(), but given iser-target does not wait in logout failure, this special case needs to be avoided. Reported-by:
Sagi Grimberg <sagig@mellanox.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Slava Shwartsman <valyushash@gmail.com> Cc: <stable@vger.kernel.org> # v3.10+ Signed-off-by:
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Nicholas Bellinger authored
[ Upstream commit 5f7da044 ] This patch fixes a NULL pointer dereference triggered by a late target_configure_device() -> alloc_workqueue() failure that results in target_free_device() being called with DF_CONFIGURED already set, which subsequently OOPses in destroy_workqueue() code. Currently this only happens at modprobe target_core_mod time when core_dev_setup_virtual_lun0() -> target_configure_device() fails, and the explicit target_free_device() gets called. To address this bug originally introduced by commit 0fd97ccf, go ahead and move DF_CONFIGURED to end of target_configure_device() code to handle this special failure case. Reported-by:
Claudio Fleiner <cmf@daterainc.com> Cc: Claudio Fleiner <cmf@daterainc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <stable@vger.kernel.org> # v3.7+ Signed-off-by:
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Bart Van Assche authored
[ Upstream commit 7544e597 ] This patch fixes a se_cmd->cmd_kref leak buf when se_sess->sess_tearing_down is true within target_get_sess_cmd() submission path code. This se_cmd reference leak can occur during active session shutdown when ack_kref=1 is passed by target_submit_cmd_[map_sgls,tmr]() callers. Signed-off-by:
Bart Van Assche <bart.vanassche@sandisk.com> Cc: <stable@vger.kernel.org> # 3.6+ Signed-off-by:
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Vignesh R authored
[ Upstream commit 7d53d255 ] ehrpwm tbclk is wrongly modelled as deriving from dpll_per_m2_ck. The TRM says tbclk is derived from SYSCLKOUT. SYSCLKOUT nothing but the functional clock of pwmss (l4ls_gclk). Fix this by changing source of ehrpwmx_tbclk to l4ls_gclk. Fixes: 4da1c677 ("add tbclk data for ehrpwm") Signed-off-by:
Vignesh R <vigneshr@ti.com> Acked-by:
Tero Kristo <t-kristo@ti.com> Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Vignesh R authored
[ Upstream commit 6e22616e ] ehrpwm tbclk is wrongly modelled as deriving from dpll_per_m2_ck. The TRM says tbclk is derived from SYSCLKOUT. SYSCLKOUT nothing but the functional clock of pwmss (l4ls_gclk). Fix this by changing source of ehrpwmx_tbclk to l4ls_gclk. Fixes: 9e100eba: ("Fix ehrpwm tbclk data") Signed-off-by:
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Ravikumar Kattekola authored
[ Upstream commit d2192ea0 ] Fixes: ee6c7507 (ARM: dts: dra7 clock data) On DRA7x, For DPLL_IVA, the ref clock(CLKINP) is connected to sys_clk1 and the bypass input(CLKINPULOW) is connected to iva_dpll_hs_clk_div clock. But the bypass input is not directly routed to bypass clkout instead both CLKINP and CLKINPULOW are connected to bypass clkout via a mux. This mux is controlled by the bit - CM_CLKSEL_DPLL_IVA[23]:DPLL_BYP_CLKSEL and it's POR value is zero which selects the CLKINP as bypass clkout. which means iva_dpll_hs_clk_div is not the bypass clock for dpll_iva_ck Fix this by adding another mux clock as parent in bypass mode. This design is common to most of the PLLs and the rest have only one bypass clock. Below is a list of the DPLLs that need this fix: DPLL_IVA, DPLL_DDR, DPLL_DSP, DPLL_EVE, DPLL_GMAC, DPLL_PER, DPLL_USB and DPLL_CORE Signed-off-by:
Ravikumar Kattekola <rk@ti.com> Acked-by:
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Alexandre Belloni authored
[ Upstream commit 84e87166 ] at91rm9200 standby and suspend to ram has been broken since 00482a40. It is wrongly using AT91_BASE_SYS which is a physical address and actually doesn't correspond to any register on at91rm9200. Use the correct at91_ramc_base[0] instead. Fixes: 00482a40 (ARM: at91: implement the standby function for pm/cpuidle) Signed-off-by:
Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
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Peter Chen authored
[ Upstream commit 40f73779 ] USB vbus 5V is from PMIC SWBST, so set swbst_reg as vbus's parent reg, it fixed a bug that the voltage of vbus is incorrect due to swbst_reg is disabled after boots up. Cc: stable@vger.kernel.org Signed-off-by:
Peter Chen <peter.chen@freescale.com> Signed-off-by:
Shawn Guo <shawn.guo@linaro.org> Signed-off-by:
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Daniel J Blueman authored
[ Upstream commit 00e7977d ] Prevent 16-bit APIC IDs being truncated by using correct mask. This fixes booting large systems, where the wrong core would receive the startup and init IPIs, causing hanging. Signed-off-by:
Daniel J Blueman <daniel@numascale.com> Cc: Steffen Persvold <sp@numascale.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Link: http://lkml.kernel.org/r/1415089784-28779-1-git-send-email-daniel@numascale.comSigned-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Jiri Slaby authored
[ Upstream commit e8932869 ] On gcc5 the kernel does not link: ld: .eh_frame_hdr table[4] FDE at 0000000000000648 overlaps table[5] FDE at 0000000000000670. Because prior GCC versions always emitted NOPs on ALIGN directives, but gcc5 started omitting them. .LSTARTFDEDLSI1 says: /* HACK: The dwarf2 unwind routines will subtract 1 from the return address to get an address in the middle of the presumed call instruction. Since we didn't get here via a call, we need to include the nop before the real start to make up for it. */ .long .LSTART_sigreturn-1-. /* PC-relative start address */ But commit 69d0627a ("x86 vDSO: reorder vdso32 code") from 2.6.25 replaced .org __kernel_vsyscall+32,0x90 by ALIGN right before __kernel_sigreturn. Of course, ALIGN need not generate any NOP in there. Esp. gcc5 collapses vclock_gettime.o and int80.o together with no generated NOPs as "ALIGN". So fix this by adding to that point at least a single NOP and make the function ALIGN possibly with more NOPs then. Kudos for reporting and diagnosing should go to Richard. Reported-by:
Richard Biener <rguenther@suse.de> Signed-off-by:
Jiri Slaby <jslaby@suse.cz> Acked-by:
Andy Lutomirski <luto@amacapital.net> Cc: <stable@vger.kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1425543211-12542-1-git-send-email-jslaby@suse.czSigned-off-by:
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Paolo Bonzini authored
[ Upstream commit dc9be0fa ] POWER supports irqfds but forgot to advertise them. Some userspace does not check for the capability, but others check it---thus they work on x86 and s390 but not POWER. To avoid that other architectures in the future make the same mistake, let common code handle KVM_CAP_IRQFD the same way as KVM_CAP_IRQFD_RESAMPLE. Reported-and-tested-by:
Greg Kurz <gkurz@linux.vnet.ibm.com> Cc: stable@vger.kernel.org Fixes: 297e2105Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com> Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
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Oleg Nesterov authored
[ Upstream commit f4c36863 ] drop_fpu() does clear_used_math() and usually this is correct because tsk == current. However switch_fpu_finish()->restore_fpu_checking() is called before __switch_to() updates the "current_task" variable. If it fails, we will wrongly clear the PF_USED_MATH flag of the previous task. So use clear_stopped_child_used_math() instead. Signed-off-by:
Borislav Petkov <bp@suse.de> Reviewed-by:
Rik van Riel <riel@redhat.com> Cc: <stable@vger.kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Pekka Riikonen <priikone@iki.fi> Cc: Quentin Casasnovas <quentin.casasnovas@oracle.com> Cc: Suresh Siddha <sbsiddha@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20150309171041.GB11388@redhat.comSigned-off-by:
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Oleg Nesterov authored
[ Upstream commit a7c80ebc ] math_state_restore() assumes it is called with irqs disabled, but this is not true if the caller is __restore_xstate_sig(). This means that if ia32_fxstate == T and __copy_from_user() fails, __restore_xstate_sig() returns with irqs disabled too. This triggers: BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:41 dump_stack ___might_sleep ? _raw_spin_unlock_irqrestore __might_sleep down_read ? _raw_spin_unlock_irqrestore print_vma_addr signal_fault sys32_rt_sigreturn Change __restore_xstate_sig() to call set_used_math() unconditionally. This avoids enabling and disabling interrupts in math_state_restore(). If copy_from_user() fails, we can simply do fpu_finit() by hand. [ Note: this is only the first step. math_state_restore() should not check used_math(), it should set this flag. While init_fpu() should simply die. ] Signed-off-by:
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Stephan Mueller authored
[ Upstream commit ccfe8c3f ] The kernel crypto API logic requires the caller to provide the length of (ciphertext || authentication tag) as cryptlen for the AEAD decryption operation. Thus, the cipher implementation must calculate the size of the plaintext output itself and cannot simply use cryptlen. The RFC4106 GCM decryption operation tries to overwrite cryptlen memory in req->dst. As the destination buffer for decryption only needs to hold the plaintext memory but cryptlen references the input buffer holding (ciphertext || authentication tag), the assumption of the destination buffer length in RFC4106 GCM operation leads to a too large size. This patch simply uses the already calculated plaintext size. In addition, this patch fixes the offset calculation of the AAD buffer pointer: as mentioned before, cryptlen already includes the size of the tag. Thus, the tag does not need to be added. With the addition, the AAD will be written beyond the already allocated buffer. Note, this fixes a kernel crash that can be triggered from user space via AF_ALG(aead) -- simply use the libkcapi test application from [1] and update it to use rfc4106-gcm-aes. Using [1], the changes were tested using CAVS vectors to demonstrate that the crypto operation still delivers the right results. [1] http://www.chronox.de/libkcapi.html CC: Tadeusz Struk <tadeusz.struk@intel.com> Cc: stable@vger.kernel.org Signed-off-by:
Stephan Mueller <smueller@chronox.de> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Ard Biesheuvel authored
[ Upstream commit 001eabfd ] This updates the bit sliced AES module to the latest version in the upstream OpenSSL repository (e620e5ae37bc). This is needed to fix a bug in the XTS decryption path, where data chunked in a certain way could trigger the ciphertext stealing code, which is not supposed to be active in the kernel build (The kernel implementation of XTS only supports round multiples of the AES block size of 16 bytes, whereas the conformant OpenSSL implementation of XTS supports inputs of arbitrary size by applying ciphertext stealing). This is fixed in the upstream version by adding the missing #ifndef XTS_CHAIN_TWEAK around the offending instructions. The upstream code also contains the change applied by Russell to build the code unconditionally, i.e., even if __LINUX_ARM_ARCH__ < 7, but implemented slightly differently. Cc: stable@vger.kernel.org Fixes: e4e7f10b ("ARM: add support for bit sliced AES using NEON instructions") Reported-by:
Adrian Kotelba <adrian.kotelba@gmail.com> Signed-off-by:
Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by:
Milan Broz <gmazyland@gmail.com> Signed-off-by:
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Kirill A. Shutemov authored
[ Upstream commit ab676b7d ] As pointed by recent post[1] on exploiting DRAM physical imperfection, /proc/PID/pagemap exposes sensitive information which can be used to do attacks. This disallows anybody without CAP_SYS_ADMIN to read the pagemap. [1] http://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html [ Eventually we might want to do anything more finegrained, but for now this is the simple model. - Linus ] Signed-off-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by:
Konstantin Khlebnikov <khlebnikov@openvz.org> Acked-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
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Maxime Ripard authored
[ Upstream commit 5724be84 ] On the Cortex-A9-based Armada SoCs, the MPIC is not the primary interrupt controller. Yet, it still has to handle some per-cpu interrupt. To do so, it is chained with the GIC using a per-cpu interrupt. However, the current code only call irq_set_chained_handler, which is called and enable that interrupt only on the boot CPU, which means that the parent per-CPU interrupt is never unmasked on the secondary CPUs, preventing the per-CPU interrupt to actually work as expected. This was not seen until now since the only MPIC PPI users were the Marvell timers that were not working, but not used either since the system use the ARM TWD by default, and the ethernet controllers, that are faking there interrupts as SPI, and don't really expect to have interrupts on the secondary cores anyway. Add a CPU notifier that will enable the PPI on the secondary cores when they are brought up. Cc: <stable@vger.kernel.org> # 3.15+ Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by:
Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1425378443-28822-1-git-send-email-maxime.ripard@free-electrons.comSigned-off-by:
Jason Cooper <jason@lakedaemon.net> Signed-off-by:
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