1. 13 Mar, 2013 18 commits
  2. 12 Mar, 2013 11 commits
    • Stephen Rothwell's avatar
      Select VIRT_TO_BUS directly where needed · 4febd95a
      Stephen Rothwell authored
      In commit 887cbce0 ("arch Kconfig: centralise ARCH_NO_VIRT_TO_BUS")
      I introduced the config sybmol HAVE_VIRT_TO_BUS and selected that where
      needed.  I am not sure what I was thinking.  Instead, just directly
      select VIRT_TO_BUS where it is needed.
      Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      4febd95a
    • Mathieu Desnoyers's avatar
      Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys · 8aec0f5d
      Mathieu Desnoyers authored
      Looking at mm/process_vm_access.c:process_vm_rw() and comparing it to
      compat_process_vm_rw() shows that the compatibility code requires an
      explicit "access_ok()" check before calling
      compat_rw_copy_check_uvector(). The same difference seems to appear when
      we compare fs/read_write.c:do_readv_writev() to
      fs/compat.c:compat_do_readv_writev().
      
      This subtle difference between the compat and non-compat requirements
      should probably be debated, as it seems to be error-prone. In fact,
      there are two others sites that use this function in the Linux kernel,
      and they both seem to get it wrong:
      
      Now shifting our attention to fs/aio.c, we see that aio_setup_iocb()
      also ends up calling compat_rw_copy_check_uvector() through
      aio_setup_vectored_rw(). Unfortunately, the access_ok() check appears to
      be missing. Same situation for
      security/keys/compat.c:compat_keyctl_instantiate_key_iov().
      
      I propose that we add the access_ok() check directly into
      compat_rw_copy_check_uvector(), so callers don't have to worry about it,
      and it therefore makes the compat call code similar to its non-compat
      counterpart. Place the access_ok() check in the same location where
      copy_from_user() can trigger a -EFAULT error in the non-compat code, so
      the ABI behaviors are alike on both compat and non-compat.
      
      While we are here, fix compat_do_readv_writev() so it checks for
      compat_rw_copy_check_uvector() negative return values.
      
      And also, fix a memory leak in compat_keyctl_instantiate_key_iov() error
      handling.
      Acked-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Acked-by: default avatarAl Viro <viro@ZenIV.linux.org.uk>
      Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@efficios.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8aec0f5d
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · c39ac49f
      Linus Torvalds authored
      Pull drm nouveau fixes from Dave Airlie:
       "This is just nouveau fixes from Ben, one fixes a nasty oops that some
        Fedora people have been seeing, so I'd like to get it out of the way."
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/nv50: use correct tiling methods for m2mf buffer moves
        drm/nouveau: idle channel before releasing notify object
        drm/nouveau: fix regression in vblanking
        drm/nv50: encoder creation failure doesn't mean full init failure
      c39ac49f
    • Linus Torvalds's avatar
      Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 6d9431a7
      Linus Torvalds authored
      Pull ARM SoC fixes from Arnd Bergmann:
       "These bug fixes are for the largest part for mvebu/kirkwood, which saw
        a few regressions after the clock infrastructure was enabled, and for
        OMAP, which showed a few more preexisting bugs with the new
        multiplatform support.
      
        Other small fixes are for imx, mxs, tegra, spear and socfpga"
      
      * tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits)
        ARM: spear3xx: Use correct pl080 header file
        Arm: socfpga: pl330: Add #dma-cells for generic dma binding support
        ARM: multiplatform: Sort the max gpio numbers.
        ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
        ARM: imx: pll1_sys should be an initial on clk
        arm: mach-orion5x: fix typo in compatible string of a .dts file
        arm: mvebu: fix address-cells in mpic DT node
        arm: plat-orion: fix address decoding when > 4GB is used
        arm: mvebu: Reduce reg-io-width with UARTs
        ARM: Dove: add RTC device node
        arm: mvebu: enable the USB ports on Armada 370 Reference Design board
        ARM: dove: drop "select COMMON_CLK_DOVE"
        rtc: rtc-mv: Add support for clk to avoid lockups
        gpio: mvebu: Add clk support to prevent lockup
        ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
        ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
        ARM: mxs: cfa10049: Fix fb initialisation function
        ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
        ARM: OMAP: RX-51: add missing USB phy binding
        clk: Tegra: Remove duplicate smp_twd clock
        ...
      6d9431a7
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu · 4388817f
      Linus Torvalds authored
      Pull m68knommu fixes from Greg Ungerer:
       "It contains a few small fixes for the non-MMU m68k platforms.  Fixes
        some compilation problems, some broken header definitions, removes an
        unused config option and adds a name for the old 68000 CPU support."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
        m68k: drop "select EMAC_INC"
        m68knommu: fix misnamed GPIO pin definition for ColdFire 528x CPU
        m68knommu: fix MC68328.h defines
        m68knommu: fix build when CPU is not coldfire
        m68knommu: add CPU_NAME for 68000
      4388817f
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security · fa4a6732
      Linus Torvalds authored
      Pull key management race fix from James Morris.
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
        keys: fix race with concurrent install_user_keyrings()
      fa4a6732
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client · 368edaad
      Linus Torvalds authored
      Pull Ceph fix from Sage Weil:
       "This fixes a bug in the new message decoding that just went in during
        the last window."
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
        libceph: fix decoding of pgids
      368edaad
    • Linus Torvalds's avatar
      Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux · 5b22b184
      Linus Torvalds authored
      Pull nfsd bugfixes from Bruce Fields:
       "Some minor fallout from the user-namespace work broke most krb5 mounts
        to nfsd, and I screwed up a change to the AF_LOCAL rpc code."
      
      * 'for-3.9' of git://linux-nfs.org/~bfields/linux:
        sunrpc: don't attempt to cancel unitialized work
        nfsd: fix krb5 handling of anonymous principals
      5b22b184
    • Al Viro's avatar
      vfs: fix pipe counter breakage · a930d879
      Al Viro authored
      If you open a pipe for neither read nor write, the pipe code will not
      add any usage counters to the pipe, causing the 'struct pipe_inode_info"
      to be potentially released early.
      
      That doesn't normally matter, since you cannot actually use the pipe,
      but the pipe release code - particularly fasync handling - still expects
      the actual pipe infrastructure to all be there.  And rather than adding
      NULL pointer checks, let's just disallow this case, the same way we
      already do for the named pipe ("fifo") case.
      
      This is ancient going back to pre-2.4 days, and until trinity, nobody
      naver noticed.
      Reported-by: default avatarDave Jones <davej@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a930d879
    • Arnd Bergmann's avatar
      ARM: spear3xx: Use correct pl080 header file · 27f423fe
      Arnd Bergmann authored
      The definitions have move around recently, causing build errors
      in spear3xx for all configurations:
      
      spear3xx.c:47:5: error: 'PL080_BSIZE_16' undeclared here (not in a function)
      spear3xx.c:47:23: error: 'PL080_CONTROL_SB_SIZE_SHIFT' undeclared here (not in a function)
      spear3xx.c:48:22: error: 'PL080_CONTROL_DB_SIZE_SHIFT' undeclared here (not in a function)
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Cc: Alessandro Rubini <rubini@gnudd.com>
      Cc: Viresh Kumar <viresh.kumar@linaro.org>
      27f423fe
    • David Howells's avatar
      keys: fix race with concurrent install_user_keyrings() · 0da9dfdd
      David Howells authored
      This fixes CVE-2013-1792.
      
      There is a race in install_user_keyrings() that can cause a NULL pointer
      dereference when called concurrently for the same user if the uid and
      uid-session keyrings are not yet created.  It might be possible for an
      unprivileged user to trigger this by calling keyctl() from userspace in
      parallel immediately after logging in.
      
      Assume that we have two threads both executing lookup_user_key(), both
      looking for KEY_SPEC_USER_SESSION_KEYRING.
      
      	THREAD A			THREAD B
      	===============================	===============================
      					==>call install_user_keyrings();
      	if (!cred->user->session_keyring)
      	==>call install_user_keyrings()
      					...
      					user->uid_keyring = uid_keyring;
      	if (user->uid_keyring)
      		return 0;
      	<==
      	key = cred->user->session_keyring [== NULL]
      					user->session_keyring = session_keyring;
      	atomic_inc(&key->usage); [oops]
      
      At the point thread A dereferences cred->user->session_keyring, thread B
      hasn't updated user->session_keyring yet, but thread A assumes it is
      populated because install_user_keyrings() returned ok.
      
      The race window is really small but can be exploited if, for example,
      thread B is interrupted or preempted after initializing uid_keyring, but
      before doing setting session_keyring.
      
      This couldn't be reproduced on a stock kernel.  However, after placing
      systemtap probe on 'user->session_keyring = session_keyring;' that
      introduced some delay, the kernel could be crashed reliably.
      
      Fix this by checking both pointers before deciding whether to return.
      Alternatively, the test could be done away with entirely as it is checked
      inside the mutex - but since the mutex is global, that may not be the best
      way.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reported-by: default avatarMateusz Guzik <mguzik@redhat.com>
      Cc: <stable@kernel.org>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarJames Morris <james.l.morris@oracle.com>
      0da9dfdd
  3. 11 Mar, 2013 11 commits
    • Sage Weil's avatar
      libceph: fix decoding of pgids · d6c0dd6b
      Sage Weil authored
      In 4f6a7e5e we effectively dropped support
      for the legacy encoding for the OSDMap and incremental.  However, we didn't
      fix the decoding for the pgid.
      Signed-off-by: default avatarSage Weil <sage@inktank.com>
      Reviewed-by: default avatarYehuda Sadeh <yehuda@inktank.com>
      d6c0dd6b
    • Padmavathi Venna's avatar
      Arm: socfpga: pl330: Add #dma-cells for generic dma binding support · 0d8abbfd
      Padmavathi Venna authored
      This patch adds #dma-cells property to PL330 DMA controller nodes for
      supporting generic dma dt bindings on SOCFPGA platform. #dma-channels
      and #dma-requests are not required now but added in advance.
      Signed-off-by: default avatarPadmavathi Venna <padma.v@samsung.com>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      0d8abbfd
    • Arnd Bergmann's avatar
      Merge tag 'mvebu_fixes_for_v3.9' of git://git.infradead.org/users/jcooper/linux into fixes · 75461523
      Arnd Bergmann authored
      mvebu fixes for v3.9 from Jason Cooper <jason@lakedaemon.net>:
      
      The first four patches:
      
        89c58c19 rtc: rtc-mv: Add support for clk to avoid lockups
        de88747f gpio: mvebu: Add clk support to prevent lockup
        7bf5b408 ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
        93fff4ce ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
      
      are Cc'd to stable since they were held over from the previous merge window.
      
      The rest are a small collection of fixes and a couple of devicetree conversion
      catchups.
      
      * tag 'mvebu_fixes_for_v3.9' of git://git.infradead.org/users/jcooper/linux:
        arm: mach-orion5x: fix typo in compatible string of a .dts file
        arm: mvebu: fix address-cells in mpic DT node
        arm: plat-orion: fix address decoding when > 4GB is used
        arm: mvebu: Reduce reg-io-width with UARTs
        ARM: Dove: add RTC device node
        arm: mvebu: enable the USB ports on Armada 370 Reference Design board
        ARM: dove: drop "select COMMON_CLK_DOVE"
        rtc: rtc-mv: Add support for clk to avoid lockups
        gpio: mvebu: Add clk support to prevent lockup
        ARM: kirkwood: fix to retain gbe MAC addresses for DT kernels
        ARM: kirkwood: of_serial: fix clock gating by removing clock-frequency
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      75461523
    • Arnd Bergmann's avatar
      Merge tag 'imx-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes · 769aca03
      Arnd Bergmann authored
      From Shawn Guo <shawn.guo@linaro.org>:
      
      The 2nd take of imx fixes for 3.9:
       - Fix pll1_sys clk initial status
       - Fix a typo in imx DEBUG_LL Kconfig
      
      * tag 'imx-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
        ARM: imx: fix typo "DEBUG_IMX50_IMX53_UART"
        ARM: imx: pll1_sys should be an initial on clk
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      769aca03
    • Arnd Bergmann's avatar
      Merge tag 'mxs-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes · fc77b0e9
      Arnd Bergmann authored
      From Shawn Guo <shawn.guo@linaro.org>:
      
      The 2nd mxs fixes for 3.9:
       - Fix an error caused by incorrect conflict resolution when
         applying the patch
      
      * tag 'mxs-fixes-3.9-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
        ARM: mxs: cfa10049: Fix fb initialisation function
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      fc77b0e9
    • Maxime Ripard's avatar
      ARM: multiplatform: Sort the max gpio numbers. · 2a6ad871
      Maxime Ripard authored
      When building a multiplatform kernel, we could end up with a smaller
      number of GPIOs than the one required by the platform the kernel was
      running on.
      
      Sort the max GPIO number by descending order so that we always take the
      highest number required.
      Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      2a6ad871
    • Liu Jinsong's avatar
      xen/acpi: remove redundant acpi/acpi_drivers.h include · d2e0bca3
      Liu Jinsong authored
      It's redundant since linux/acpi.h has include it when CONFIG_ACPI enabled,
      and when CONFIG_ACPI disabled it will trigger compiling warning
      
      In file included from drivers/xen/xen-stub.c:28:0:
      include/acpi/acpi_drivers.h:103:31:
      warning: 'struct acpi_device' declared inside parameter list [enabled by default]
      include/acpi/acpi_drivers.h:103:31:
      warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
      include/acpi/acpi_drivers.h:107:43:
      warning: 'struct acpi_pci_root' declared inside parameter list [enabled by default]
      Reported-by: default avatarWu Fengguang <fengguang.wu@intel.com>
      Signed-off-by: default avatarLiu Jinsong <jinsong.liu@intel.com>
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      d2e0bca3
    • Ian Campbell's avatar
      xen: arm: mandate EABI and use generic atomic operations. · 85323a99
      Ian Campbell authored
      Rob Herring has observed that c81611c4 "xen: event channel arrays are
      xen_ulong_t and not unsigned long" introduced a compile failure when building
      without CONFIG_AEABI:
      
      /tmp/ccJaIZOW.s: Assembler messages:
      /tmp/ccJaIZOW.s:831: Error: even register required -- `ldrexd r5,r6,[r4]'
      
      Will Deacon pointed out that this is because OABI does not require even base
      registers for 64-bit values. We can avoid this by simply using the existing
      atomic64_xchg operation and the same containerof trick as used by the cmpxchg
      macros. However since this code is used on memory which is shared with the
      hypervisor we require proper atomic instructions and cannot use the generic
      atomic64 callbacks (which are based on spinlocks), therefore add a dependency
      on !GENERIC_ATOMIC64. Since we already depend on !CPU_V6 there isn't much
      downside to this.
      
      While thinking about this we also observed that OABI has different struct
      alignment requirements to EABI, which is a problem for hypercall argument
      structs which are shared with the hypervisor and which must be in EABI layout.
      Since I don't expect people to want to run OABI kernels on Xen depend on
      CONFIG_AEABI explicitly too (although it also happens to be enforced by the
      !GENERIC_ATOMIC64 requirement too).
      Signed-off-by: default avatarIan Campbell <ian.campbell@citrix.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: Rob Herring <robherring2@gmail.com>
      Acked-by: default avatarStefano Stabellini <Stefano.Stabellini@eu.citrix.com>
      Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      85323a99
    • Linus Torvalds's avatar
      Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7c6baa30
      Linus Torvalds authored
      Pull perf fixes from Ingo Molnar:
       "Misc minor fixes mostly related to tracing"
      
      * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        s390: Fix a header dependencies related build error
        tracing: update documentation of snapshot utility
        tracing: Do not return EINVAL in snapshot when not allocated
        tracing: Add help of snapshot feature when snapshot is empty
        ftrace: Update the kconfig for DYNAMIC_FTRACE
      7c6baa30
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 0cb77508
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Missing cancel of work items in mac80211 MLME, from Ben Greear.
      
       2) Fix DMA mapping handling in iwlwifi by using coherent DMA for
          command headers, from Johannes Berg.
      
       3) Decrease the amount of pressure on the page allocator by using order
          1 pages less in iwlwifi, from Emmanuel Grumbach.
      
       4) Fix mesh PS broadcast OOPS in mac80211, from Marco Porsch.
      
       5) Don't forget to recalculate idle state in mac80211 monitor
          interface, from Felix Fietkau.
      
       6) Fix varargs in netfilter conntrack handler, from Joe Perches.
      
       7) Need to reset entire chip when command queue fills up in iwlwifi,
          from Emmanuel Grumbach.
      
       8) The TX antenna value must be valid when calibrations are performed
          in iwlwifi, fix from Dor Shaish.
      
       9) Don't generate netfilter audit log entries when audit is disabled,
          from Gao Feng.
      
      10) Deal with DMA unit hang on e1000e during power state transitions,
          from Bruce Allan.
      
      11) Remove BUILD_BUG_ON check from igb driver, from Alexander Duyck.
      
      12) Fix lockdep warning on i2c handling of igb driver, from Carolyn
          Wyborny.
      
      13) Fix several TTY handling issues in IRDA ircomm tty driver, from
          Peter Hurley.
      
      14) Several QFQ packet scheduler fixes from Paolo Valente.
      
      15) When VXLAN encapsulates on transmit, we have to reset the netfilter
          state.  From Zang MingJie.
      
      16) Fix jiffie check in net_rx_action() so that we really cap the
          processing at 2HZ.  From Eric Dumazet.
      
      17) Fix erroneous trigger of IP option space exhaustion, when routers
          are pre-specified and we are looking to see if we can insert a
          timestamp, we will have the space.  From David Ward.
      
      18) Fix various issues in benet driver wrt waiting for firmware to
          finish POST after resets or errors.  From Gavin Shan and Sathya
          Perla.
      
      19) Fix TX locking in SFC driver, from Ben Hutchings.
      
      20) Like the VXLAN fix above, when we encap in a TUN device we have to
          reset the netfilter state.  This should fix several strange crashes
          reported by Dave Jones and others.  From Eric Dumazet.
      
      21) Don't forget to clean up MAC address resources when shutting down a
          port in mlx4 driver, from Yan Burman.
      
      22) Fix divide by zero in vmxnet3 driver, from Bhavesh Davda.
      
      23) Fix device statistic regression in tg3 when the driver is using
          phylib, from Nithin Sujir.
      
      24) Fix info leak in several netlink handlers, from Mathias Krause.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (79 commits)
        6lowpan: Fix endianness issue in is_addr_link_local().
        rrunner.c: fix possible memory leak in rr_init_one()
        dcbnl: fix various netlink info leaks
        rtnl: fix info leak on RTM_GETLINK request for VF devices
        bridge: fix mdb info leaks
        tg3: Update link_up flag for phylib devices
        ipv6: stop multicast forwarding to process interface scoped addresses
        bridging: fix rx_handlers return code
        netlabel: fix build problems when CONFIG_IPV6=n
        drivers/isdn: checkng length to be sure not memory overflow
        net/rds: zero last byte for strncpy
        bnx2x: Fix SFP+ misconfiguration in iSCSI boot scenario
        bnx2x: Fix intermittent long KR2 link up time
        macvlan: Set IFF_UNICAST_FLT flag to prevent unnecessary promisc mode.
        team: unsyc the devices addresses when port is removed
        bridge: add missing vid to br_mdb_get()
        Fix: sparse warning in inet_csk_prepare_forced_close
        afkey: fix a typo
        MAINTAINERS: Update qlcnic maintainers list
        netlabel: correctly list all the static label mappings
        ...
      0cb77508
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml · ffb6a445
      Linus Torvalds authored
      Pull UML fixes from Richard Weinberger:
       "This update brings various fixes.
        Nothing special...
      
        In my local queue I have some more fixes which will be sent later to
        you.  3.9 uncovered strange UML issues.  :("
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
        um: Use tty_port in SIGWINCH handler
        um: Use tty_port_operations->destruct
        um: fix build failure due to mess-up of sig_info protorype
        um: add missing declaration of 'getrlimit()' and friends
        net : enable tx time stamping in the vde driver.
        hostfs: fix a not needed double check
      ffb6a445