1. 12 Dec, 2016 5 commits
    • Petr Vandrovec's avatar
      Fix USB CB/CBI storage devices with CONFIG_VMAP_STACK=y · af5bc71b
      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: default avatarPetr Vandrovec <petr@vandrovec.name>
      Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
      Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
      af5bc71b
    • Doug Brown's avatar
      USB: serial: ftdi_sio: add support for TI CC3200 LaunchPad · 9a64b7b1
      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: default avatarDoug Brown <doug@schmorgal.com>
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
      9a64b7b1
    • Paul Jakma's avatar
      USB: serial: cp210x: add ID for the Zone DPMX · b2f43aa4
      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: default avatarPaul Jakma <paul@jakma.org>
      Cc: Barry Redmond <barry@brimbrothers.com>
      Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
      b2f43aa4
    • Peter Chen's avatar
      usb: chipidea: move the lock initialization to core file · 11a35448
      Peter Chen authored
      commit a5d906bb upstream.
      
      This can fix below dump when the lock is accessed at host
      mode due to it is not initialized.
      
      [   46.119638] INFO: trying to register non-static key.
      [   46.124643] the code is fine but needs lockdep annotation.
      [   46.130144] turning off the locking correctness validator.
      [   46.135659] CPU: 0 PID: 690 Comm: cat Not tainted 4.9.0-rc3-00079-g4b75f1d #1210
      [   46.143075] Hardware name: Freescale i.MX6 SoloX (Device Tree)
      [   46.148923] Backtrace:
      [   46.151448] [<c010c460>] (dump_backtrace) from [<c010c658>] (show_stack+0x18/0x1c)
      [   46.159038]  r7:edf52000
      [   46.161412]  r6:60000193
      [   46.163967]  r5:00000000
      [   46.165035]  r4:c0e25c2c
      
      [   46.169109] [<c010c640>] (show_stack) from [<c03f58a4>] (dump_stack+0xb4/0xe8)
      [   46.176362] [<c03f57f0>] (dump_stack) from [<c016d690>] (register_lock_class+0x4fc/0x56c)
      [   46.184554]  r10:c0e25d24
      [   46.187014]  r9:edf53e70
      [   46.189569]  r8:c1642444
      [   46.190637]  r7:ee9da024
      [   46.193191]  r6:00000000
      [   46.194258]  r5:00000000
      [   46.196812]  r4:00000000
      [   46.199185]  r3:00000001
      
      [   46.203259] [<c016d194>] (register_lock_class) from [<c0171294>] (__lock_acquire+0x80/0x10f0)
      [   46.211797]  r10:c0e25d24
      [   46.214257]  r9:edf53e70
      [   46.216813]  r8:ee9da024
      [   46.217880]  r7:c1642444
      [   46.220435]  r6:edcd1800
      [   46.221502]  r5:60000193
      [   46.224057]  r4:00000000
      
      [   46.227953] [<c0171214>] (__lock_acquire) from [<c01726c0>] (lock_acquire+0x74/0x94)
      [   46.235710]  r10:00000001
      [   46.238169]  r9:edf53e70
      [   46.240723]  r8:edf53f80
      [   46.241790]  r7:00000001
      [   46.244344]  r6:00000001
      [   46.245412]  r5:60000193
      [   46.247966]  r4:00000000
      
      [   46.251866] [<c017264c>] (lock_acquire) from [<c096c8fc>] (_raw_spin_lock_irqsave+0x40/0x54)
      [   46.260319]  r7:ee1c6a00
      [   46.262691]  r6:c062a570
      [   46.265247]  r5:20000113
      [   46.266314]  r4:ee9da014
      
      [   46.270393] [<c096c8bc>] (_raw_spin_lock_irqsave) from [<c062a570>] (ci_port_test_show+0x2c/0x70)
      [   46.279280]  r6:eebd2000
      [   46.281652]  r5:ee9da010
      [   46.284207]  r4:ee9da014
      
      [   46.286810] [<c062a544>] (ci_port_test_show) from [<c0248d04>] (seq_read+0x1ac/0x4f8)
      [   46.294655]  r9:edf53e70
      [   46.297028]  r8:edf53f80
      [   46.299583]  r7:ee1c6a00
      [   46.300650]  r6:00000001
      [   46.303205]  r5:00000000
      [   46.304273]  r4:eebd2000
      [   46.306850] [<c0248b58>] (seq_read) from [<c039e864>] (full_proxy_read+0x54/0x6c)
      [   46.314348]  r10:00000000
      [   46.316808]  r9:c0a6ad30
      [   46.319363]  r8:edf53f80
      [   46.320430]  r7:00020000
      [   46.322986]  r6:b6de3000
      [   46.324053]  r5:ee1c6a00
      [   46.326607]  r4:c0248b58
      
      [   46.330505] [<c039e810>] (full_proxy_read) from [<c021ec98>] (__vfs_read+0x34/0x118)
      [   46.338262]  r9:edf52000
      [   46.340635]  r8:c0107fc4
      [   46.343190]  r7:00020000
      [   46.344257]  r6:edf53f80
      [   46.346812]  r5:c039e810
      [   46.347879]  r4:ee1c6a00
      [   46.350447] [<c021ec64>] (__vfs_read) from [<c021fbd0>] (vfs_read+0x8c/0x11c)
      [   46.357597]  r9:edf52000
      [   46.359969]  r8:c0107fc4
      [   46.362524]  r7:edf53f80
      [   46.363592]  r6:b6de3000
      [   46.366147]  r5:ee1c6a00
      [   46.367214]  r4:00020000
      [   46.369782] [<c021fb44>] (vfs_read) from [<c0220a4c>] (SyS_read+0x4c/0xa8)
      [   46.376672]  r8:c0107fc4
      [   46.379045]  r7:00020000
      [   46.381600]  r6:b6de3000
      [   46.382667]  r5:ee1c6a00
      [   46.385222]  r4:ee1c6a00
      
      [   46.387817] [<c0220a00>] (SyS_read) from [<c0107e20>] (ret_fast_syscall+0x0/0x1c)
      [   46.395314]  r7:00000003
      [   46.397687]  r6:b6de3000
      [   46.400243]  r5:00020000
      [   46.401310]  r4:00020000
      
      Fixes: 26c696c6 ("USB: Chipidea: rename struct ci13xxx variables from udc to ci")
      Signed-off-by: default avatarPeter Chen <peter.chen@nxp.com>
      Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
      11a35448
    • Radim Krčmář's avatar
      KVM: x86: drop error recovery in em_jmp_far and em_ret_far · 53093fc1
      Radim Krčmář authored
      commit 2117d539 upstream.
      
      em_jmp_far and em_ret_far assumed that setting IP can only fail in 64
      bit mode, but syzkaller proved otherwise (and SDM agrees).
      Code segment was restored upon failure, but it was left uninitialized
      outside of long mode, which could lead to a leak of host kernel stack.
      We could have fixed that by always saving and restoring the CS, but we
      take a simpler approach and just break any guest that manages to fail
      as the error recovery is error-prone and modern CPUs don't need emulator
      for this.
      
      Found by syzkaller:
      
        WARNING: CPU: 2 PID: 3668 at arch/x86/kvm/emulate.c:2217 em_ret_far+0x428/0x480
        Kernel panic - not syncing: panic_on_warn set ...
      
        CPU: 2 PID: 3668 Comm: syz-executor Not tainted 4.9.0-rc4+ #49
        Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
         [...]
        Call Trace:
         [...] __dump_stack lib/dump_stack.c:15
         [...] dump_stack+0xb3/0x118 lib/dump_stack.c:51
         [...] panic+0x1b7/0x3a3 kernel/panic.c:179
         [...] __warn+0x1c4/0x1e0 kernel/panic.c:542
         [...] warn_slowpath_null+0x2c/0x40 kernel/panic.c:585
         [...] em_ret_far+0x428/0x480 arch/x86/kvm/emulate.c:2217
         [...] em_ret_far_imm+0x17/0x70 arch/x86/kvm/emulate.c:2227
         [...] x86_emulate_insn+0x87a/0x3730 arch/x86/kvm/emulate.c:5294
         [...] x86_emulate_instruction+0x520/0x1ba0 arch/x86/kvm/x86.c:5545
         [...] emulate_instruction arch/x86/include/asm/kvm_host.h:1116
         [...] complete_emulated_io arch/x86/kvm/x86.c:6870
         [...] complete_emulated_mmio+0x4e9/0x710 arch/x86/kvm/x86.c:6934
         [...] kvm_arch_vcpu_ioctl_run+0x3b7a/0x5a90 arch/x86/kvm/x86.c:6978
         [...] kvm_vcpu_ioctl+0x61e/0xdd0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2557
         [...] vfs_ioctl fs/ioctl.c:43
         [...] do_vfs_ioctl+0x18c/0x1040 fs/ioctl.c:679
         [...] SYSC_ioctl fs/ioctl.c:694
         [...] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
         [...] entry_SYSCALL_64_fastpath+0x1f/0xc2
      Reported-by: default avatarDmitry Vyukov <dvyukov@google.com>
      Fixes: d1442d85 ("KVM: x86: Handle errors when RIP is set during far jumps")
      Signed-off-by: default avatarRadim Krčmář <rkrcmar@redhat.com>
      Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
      53093fc1
  2. 01 Dec, 2016 1 commit
  3. 28 Nov, 2016 34 commits