1. 21 Dec, 2018 29 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 6cafab50
      Linus Torvalds authored
      Pull sparc fixes from David Miller:
       "Just some small fixes here and there, and a refcount leak in a serial
        driver, nothing serious"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        serial/sunsu: fix refcount leak
        sparc: Set "ARCH: sunxx" information on the same line
        sparc: vdso: Drop implicit common-page-size linker flag
      6cafab50
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 87935eee
      Linus Torvalds authored
      Pull more networking fixes from David Miller:
       "Some more bug fixes have trickled in, we have:
      
        1) Local MAC entries properly in mscc driver, from Allan W. Nielsen.
      
        2) Eric Dumazet found some more of the typical "pskb_may_pull() -->
           oops forgot to reload the header pointer" bugs in ipv6 tunnel
           handling.
      
        3) Bad SKB socket pointer in ipv6 fragmentation handling, from Herbert
           Xu.
      
        4) Overflow fix in sk_msg_clone(), from Vakul Garg.
      
        5) Validate address lengths in AF_PACKET, from Willem de Bruijn"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup
        qmi_wwan: Add support for Fibocom NL678 series
        tls: Do not call sk_memcopy_from_iter with zero length
        ipv6: tunnels: fix two use-after-free
        Prevent overflow of sk_msg in sk_msg_clone()
        packet: validate address length
        net: netxen: fix a missing check and an uninitialized use
        tcp: fix a race in inet_diag_dump_icsk()
        MAINTAINERS: update cxgb4 and cxgb3 maintainer
        ipv6: frags: Fix bogus skb->sk in reassembled packets
        mscc: Configured MAC entries should be locked.
      87935eee
    • Yangtao Li's avatar
      serial/sunsu: fix refcount leak · d430aff8
      Yangtao Li authored
      The function of_find_node_by_path() acquires a reference to the node
      returned by it and that reference needs to be dropped by its caller.
      
      su_get_type() doesn't do that. The match node are used as an identifier
      to compare against the current node, so we can directly drop the refcount
      after getting the node from the path as it is not used as pointer.
      
      Fix this by use a single variable and drop the refcount right after
      of_find_node_by_path().
      Signed-off-by: default avatarYangtao Li <tiny.windzz@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d430aff8
    • Corentin Labbe's avatar
      sparc: Set "ARCH: sunxx" information on the same line · afaffac3
      Corentin Labbe authored
      While checking boot log from SPARC qemu, I saw that the "ARCH: sunxx"
      information was split on two different line.
      This patchs merge both line together.
      In the meantime, thoses information need to be printed via pr_info
      since printk print them by default via the warning loglevel.
      Signed-off-by: default avatarCorentin Labbe <clabbe@baylibre.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      afaffac3
    • ndesaulniers@google.com's avatar
      sparc: vdso: Drop implicit common-page-size linker flag · 0ff70f62
      ndesaulniers@google.com authored
      GNU linker's -z common-page-size's default value is based on the target
      architecture. arch/sparc/vdso/Makefile sets it to the architecture
      default, which is implicit and redundant. Drop it.
      
      Link: https://lkml.kernel.org/r/20181206191231.192355-1-ndesaulniers@google.comSigned-off-by: default avatarNick Desaulniers <ndesaulniers@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0ff70f62
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm · 5092adb2
      Linus Torvalds authored
      Pull kvm fix from Paolo Bonzini:
       "A simple patch for a pretty bad bug: Unbreak AMD nested
        virtualization."
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
        KVM: x86: nSVM: fix switch to guest mmu
      5092adb2
    • Daniele Palmas's avatar
      qmi_wwan: Fix qmap header retrieval in qmimux_rx_fixup · d667044f
      Daniele Palmas authored
      This patch fixes qmap header retrieval when modem is configured for
      dl data aggregation.
      Signed-off-by: default avatarDaniele Palmas <dnlplm@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d667044f
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · e572fa0e
      Linus Torvalds authored
      Pull timer fix from Ingo Molnar:
       "Fix a division by zero crash in the posix-timers code"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        posix-timers: Fix division by zero bug
      e572fa0e
    • Jörgen Storvist's avatar
      qmi_wwan: Add support for Fibocom NL678 series · 7c3db410
      Jörgen Storvist authored
      Added support for Fibocom NL678 series cellular module QMI interface.
      Using QMI_QUIRK_SET_DTR required for Qualcomm MDM9x40 series chipsets.
      Signed-off-by: default avatarJörgen Storvist <jorgen.storvist@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7c3db410
    • Vakul Garg's avatar
      tls: Do not call sk_memcopy_from_iter with zero length · 65a10e28
      Vakul Garg authored
      In some conditions e.g. when tls_clone_plaintext_msg() returns -ENOSPC,
      the number of bytes to be copied using subsequent function
      sk_msg_memcopy_from_iter() becomes zero. This causes function
      sk_msg_memcopy_from_iter() to fail which in turn causes tls_sw_sendmsg()
      to return failure. To prevent it, do not call sk_msg_memcopy_from_iter()
      when number of bytes to copy (indicated by 'try_to_copy') is zero.
      
      Fixes: d829e9c4 ("tls: convert to generic sk_msg interface")
      Signed-off-by: default avatarVakul Garg <vakul.garg@nxp.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      65a10e28
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d5fa080d
      Linus Torvalds authored
      Pull futex fix from Ingo Molnar:
       "A single fix for a robust futexes race between sys_exit() and
        sys_futex_lock_pi()"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        futex: Cure exit race
      d5fa080d
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 70ad6368
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "The biggest part is a series of reverts for the macro based GCC
        inlining workarounds. It caused regressions in distro build and other
        kernel tooling environments, and the GCC project was very receptive to
        fixing the underlying inliner weaknesses - so as time ran out we
        decided to do a reasonably straightforward revert of the patches. The
        plan is to rely on the 'asm inline' GCC 9 feature, which might be
        backported to GCC 8 and could thus become reasonably widely available
        on modern distros.
      
        Other than those reverts, there's misc fixes from all around the
        place.
      
        I wish our final x86 pull request for v4.20 was smaller..."
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        Revert "kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs"
        Revert "x86/objtool: Use asm macros to work around GCC inlining bugs"
        Revert "x86/refcount: Work around GCC inlining bug"
        Revert "x86/alternatives: Macrofy lock prefixes to work around GCC inlining bugs"
        Revert "x86/bug: Macrofy the BUG table section handling, to work around GCC inlining bugs"
        Revert "x86/paravirt: Work around GCC inlining bugs when compiling paravirt ops"
        Revert "x86/extable: Macrofy inline assembly code to work around GCC inlining bugs"
        Revert "x86/cpufeature: Macrofy inline assembly code to work around GCC inlining bugs"
        Revert "x86/jump-labels: Macrofy inline assembly code to work around GCC inlining bugs"
        x86/mtrr: Don't copy uninitialized gentry fields back to userspace
        x86/fsgsbase/64: Fix the base write helper functions
        x86/mm/cpa: Fix cpa_flush_array() TLB invalidation
        x86/vdso: Pass --eh-frame-hdr to the linker
        x86/mm: Fix decoy address handling vs 32-bit builds
        x86/intel_rdt: Ensure a CPU remains online for the region's pseudo-locking sequence
        x86/dump_pagetables: Fix LDT remap address marker
        x86/mm: Fix guard hole handling
      70ad6368
    • Eric Dumazet's avatar
      ipv6: tunnels: fix two use-after-free · cbb49697
      Eric Dumazet authored
      xfrm6_policy_check() might have re-allocated skb->head, we need
      to reload ipv6 header pointer.
      
      sysbot reported :
      
      BUG: KASAN: use-after-free in __ipv6_addr_type+0x302/0x32f net/ipv6/addrconf_core.c:40
      Read of size 4 at addr ffff888191b8cb70 by task syz-executor2/1304
      
      CPU: 0 PID: 1304 Comm: syz-executor2 Not tainted 4.20.0-rc7+ #356
      Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
      Call Trace:
       <IRQ>
       __dump_stack lib/dump_stack.c:77 [inline]
       dump_stack+0x244/0x39d lib/dump_stack.c:113
       print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256
       kasan_report_error mm/kasan/report.c:354 [inline]
       kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412
       __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432
       __ipv6_addr_type+0x302/0x32f net/ipv6/addrconf_core.c:40
       ipv6_addr_type include/net/ipv6.h:403 [inline]
       ip6_tnl_get_cap+0x27/0x190 net/ipv6/ip6_tunnel.c:727
       ip6_tnl_rcv_ctl+0xdb/0x2a0 net/ipv6/ip6_tunnel.c:757
       vti6_rcv+0x336/0x8f3 net/ipv6/ip6_vti.c:321
       xfrm6_ipcomp_rcv+0x1a5/0x3a0 net/ipv6/xfrm6_protocol.c:132
       ip6_protocol_deliver_rcu+0x372/0x1940 net/ipv6/ip6_input.c:394
       ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
       NF_HOOK include/linux/netfilter.h:289 [inline]
       ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:443
      IPVS: ftp: loaded support on port[0] = 21
       ip6_mc_input+0x514/0x11c0 net/ipv6/ip6_input.c:537
       dst_input include/net/dst.h:450 [inline]
       ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76
       NF_HOOK include/linux/netfilter.h:289 [inline]
       ipv6_rcv+0x115/0x640 net/ipv6/ip6_input.c:272
       __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4973
       __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5083
       process_backlog+0x24e/0x7a0 net/core/dev.c:5923
       napi_poll net/core/dev.c:6346 [inline]
       net_rx_action+0x7fa/0x19b0 net/core/dev.c:6412
       __do_softirq+0x308/0xb7e kernel/softirq.c:292
       do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1027
       </IRQ>
       do_softirq.part.14+0x126/0x160 kernel/softirq.c:337
       do_softirq+0x19/0x20 kernel/softirq.c:340
       netif_rx_ni+0x521/0x860 net/core/dev.c:4569
       dev_loopback_xmit+0x287/0x8c0 net/core/dev.c:3576
       NF_HOOK include/linux/netfilter.h:289 [inline]
       ip6_finish_output2+0x193a/0x2930 net/ipv6/ip6_output.c:84
       ip6_fragment+0x2b06/0x3850 net/ipv6/ip6_output.c:727
       ip6_finish_output+0x6b7/0xc50 net/ipv6/ip6_output.c:152
       NF_HOOK_COND include/linux/netfilter.h:278 [inline]
       ip6_output+0x232/0x9d0 net/ipv6/ip6_output.c:171
       dst_output include/net/dst.h:444 [inline]
       ip6_local_out+0xc5/0x1b0 net/ipv6/output_core.c:176
       ip6_send_skb+0xbc/0x340 net/ipv6/ip6_output.c:1727
       ip6_push_pending_frames+0xc5/0xf0 net/ipv6/ip6_output.c:1747
       rawv6_push_pending_frames net/ipv6/raw.c:615 [inline]
       rawv6_sendmsg+0x3a3e/0x4b40 net/ipv6/raw.c:945
      kobject: 'queues' (0000000089e6eea2): kobject_add_internal: parent: 'tunl0', set: '<NULL>'
      kobject: 'queues' (0000000089e6eea2): kobject_uevent_env
       inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798
      kobject: 'queues' (0000000089e6eea2): kobject_uevent_env: filter function caused the event to drop!
       sock_sendmsg_nosec net/socket.c:621 [inline]
       sock_sendmsg+0xd5/0x120 net/socket.c:631
       sock_write_iter+0x35e/0x5c0 net/socket.c:900
       call_write_iter include/linux/fs.h:1857 [inline]
       new_sync_write fs/read_write.c:474 [inline]
       __vfs_write+0x6b8/0x9f0 fs/read_write.c:487
      kobject: 'rx-0' (00000000e2d902d9): kobject_add_internal: parent: 'queues', set: 'queues'
      kobject: 'rx-0' (00000000e2d902d9): kobject_uevent_env
       vfs_write+0x1fc/0x560 fs/read_write.c:549
       ksys_write+0x101/0x260 fs/read_write.c:598
      kobject: 'rx-0' (00000000e2d902d9): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/rx-0'
       __do_sys_write fs/read_write.c:610 [inline]
       __se_sys_write fs/read_write.c:607 [inline]
       __x64_sys_write+0x73/0xb0 fs/read_write.c:607
       do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
      kobject: 'tx-0' (00000000443b70ac): kobject_add_internal: parent: 'queues', set: 'queues'
       entry_SYSCALL_64_after_hwframe+0x49/0xbe
      RIP: 0033:0x457669
      Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
      RSP: 002b:00007f9bd200bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
      RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457669
      RDX: 000000000000058f RSI: 00000000200033c0 RDI: 0000000000000003
      kobject: 'tx-0' (00000000443b70ac): kobject_uevent_env
      RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
      R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9bd200c6d4
      R13: 00000000004c2dcc R14: 00000000004da398 R15: 00000000ffffffff
      
      Allocated by task 1304:
       save_stack+0x43/0xd0 mm/kasan/kasan.c:448
       set_track mm/kasan/kasan.c:460 [inline]
       kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553
       __do_kmalloc_node mm/slab.c:3684 [inline]
       __kmalloc_node_track_caller+0x50/0x70 mm/slab.c:3698
       __kmalloc_reserve.isra.41+0x41/0xe0 net/core/skbuff.c:140
       __alloc_skb+0x155/0x760 net/core/skbuff.c:208
      kobject: 'tx-0' (00000000443b70ac): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/tx-0'
       alloc_skb include/linux/skbuff.h:1011 [inline]
       __ip6_append_data.isra.49+0x2f1a/0x3f50 net/ipv6/ip6_output.c:1450
       ip6_append_data+0x1bc/0x2d0 net/ipv6/ip6_output.c:1619
       rawv6_sendmsg+0x15ab/0x4b40 net/ipv6/raw.c:938
       inet_sendmsg+0x1a1/0x690 net/ipv4/af_inet.c:798
       sock_sendmsg_nosec net/socket.c:621 [inline]
       sock_sendmsg+0xd5/0x120 net/socket.c:631
       ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116
       __sys_sendmsg+0x11d/0x280 net/socket.c:2154
       __do_sys_sendmsg net/socket.c:2163 [inline]
       __se_sys_sendmsg net/socket.c:2161 [inline]
       __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
       do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
       entry_SYSCALL_64_after_hwframe+0x49/0xbe
      kobject: 'gre0' (00000000cb1b2d7b): kobject_add_internal: parent: 'net', set: 'devices'
      
      Freed by task 1304:
       save_stack+0x43/0xd0 mm/kasan/kasan.c:448
       set_track mm/kasan/kasan.c:460 [inline]
       __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521
       kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
       __cache_free mm/slab.c:3498 [inline]
       kfree+0xcf/0x230 mm/slab.c:3817
       skb_free_head+0x93/0xb0 net/core/skbuff.c:553
       pskb_expand_head+0x3b2/0x10d0 net/core/skbuff.c:1498
       __pskb_pull_tail+0x156/0x18a0 net/core/skbuff.c:1896
       pskb_may_pull include/linux/skbuff.h:2188 [inline]
       _decode_session6+0xd11/0x14d0 net/ipv6/xfrm6_policy.c:150
       __xfrm_decode_session+0x71/0x140 net/xfrm/xfrm_policy.c:3272
      kobject: 'gre0' (00000000cb1b2d7b): kobject_uevent_env
       __xfrm_policy_check+0x380/0x2c40 net/xfrm/xfrm_policy.c:3322
       __xfrm_policy_check2 include/net/xfrm.h:1170 [inline]
       xfrm_policy_check include/net/xfrm.h:1175 [inline]
       xfrm6_policy_check include/net/xfrm.h:1185 [inline]
       vti6_rcv+0x4bd/0x8f3 net/ipv6/ip6_vti.c:316
       xfrm6_ipcomp_rcv+0x1a5/0x3a0 net/ipv6/xfrm6_protocol.c:132
       ip6_protocol_deliver_rcu+0x372/0x1940 net/ipv6/ip6_input.c:394
       ip6_input_finish+0x84/0x170 net/ipv6/ip6_input.c:434
       NF_HOOK include/linux/netfilter.h:289 [inline]
       ip6_input+0xe9/0x600 net/ipv6/ip6_input.c:443
       ip6_mc_input+0x514/0x11c0 net/ipv6/ip6_input.c:537
       dst_input include/net/dst.h:450 [inline]
       ip6_rcv_finish+0x17a/0x330 net/ipv6/ip6_input.c:76
       NF_HOOK include/linux/netfilter.h:289 [inline]
       ipv6_rcv+0x115/0x640 net/ipv6/ip6_input.c:272
       __netif_receive_skb_one_core+0x14d/0x200 net/core/dev.c:4973
       __netif_receive_skb+0x2c/0x1e0 net/core/dev.c:5083
       process_backlog+0x24e/0x7a0 net/core/dev.c:5923
      kobject: 'gre0' (00000000cb1b2d7b): fill_kobj_path: path = '/devices/virtual/net/gre0'
       napi_poll net/core/dev.c:6346 [inline]
       net_rx_action+0x7fa/0x19b0 net/core/dev.c:6412
       __do_softirq+0x308/0xb7e kernel/softirq.c:292
      
      The buggy address belongs to the object at ffff888191b8cac0
       which belongs to the cache kmalloc-512 of size 512
      The buggy address is located 176 bytes inside of
       512-byte region [ffff888191b8cac0, ffff888191b8ccc0)
      The buggy address belongs to the page:
      page:ffffea000646e300 count:1 mapcount:0 mapping:ffff8881da800940 index:0x0
      flags: 0x2fffc0000000200(slab)
      raw: 02fffc0000000200 ffffea0006eaaa48 ffffea00065356c8 ffff8881da800940
      raw: 0000000000000000 ffff888191b8c0c0 0000000100000006 0000000000000000
      page dumped because: kasan: bad access detected
      kobject: 'queues' (000000005fd6226e): kobject_add_internal: parent: 'gre0', set: '<NULL>'
      
      Memory state around the buggy address:
       ffff888191b8ca00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
       ffff888191b8ca80: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
      >ffff888191b8cb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                                   ^
       ffff888191b8cb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
       ffff888191b8cc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
      
      Fixes: 0d3c703a ("ipv6: Cleanup IPv6 tunnel receive path")
      Fixes: ed1efb2a ("ipv6: Add support for IPsec virtual tunnel interfaces")
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Cc: Steffen Klassert <steffen.klassert@secunet.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      cbb49697
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2018-12-21' of git://anongit.freedesktop.org/drm/drm · 96d6ee7d
      Linus Torvalds authored
      Pull final drm fix from Daniel Vetter:
       "Very calm week, so either everything perfect or everyone on holidays
        already. Just one array_index_nospec patch, also for stable"
      
      * tag 'drm-fixes-2018-12-21' of git://anongit.freedesktop.org/drm/drm:
        drm/ioctl: Fix Spectre v1 vulnerabilities
      96d6ee7d
    • Vakul Garg's avatar
      Prevent overflow of sk_msg in sk_msg_clone() · 5c1e7e94
      Vakul Garg authored
      Fixed function sk_msg_clone() to prevent overflow of 'dst' while adding
      pages in scatterlist entries. The overflow of 'dst' causes crash in kernel
      tls module while doing record encryption.
      
      Crash fixed by this patch.
      
      [   78.796119] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
      [   78.804900] Mem abort info:
      [   78.807683]   ESR = 0x96000004
      [   78.810744]   Exception class = DABT (current EL), IL = 32 bits
      [   78.816677]   SET = 0, FnV = 0
      [   78.819727]   EA = 0, S1PTW = 0
      [   78.822873] Data abort info:
      [   78.825759]   ISV = 0, ISS = 0x00000004
      [   78.829600]   CM = 0, WnR = 0
      [   78.832576] user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000bf8ee311
      [   78.839195] [0000000000000008] pgd=0000000000000000
      [   78.844081] Internal error: Oops: 96000004 [#1] PREEMPT SMP
      [   78.849642] Modules linked in: tls xt_conntrack ipt_REJECT nf_reject_ipv4 ip6table_filter ip6_tables xt_CHECKSUM cpve cpufreq_conservative lm90 ina2xx crct10dif_ce
      [   78.865377] CPU: 0 PID: 6007 Comm: openssl Not tainted 4.20.0-rc6-01647-g754d5da6-dirty #107
      [   78.874149] Hardware name: LS1043A RDB Board (DT)
      [   78.878844] pstate: 60000005 (nZCv daif -PAN -UAO)
      [   78.883632] pc : scatterwalk_copychunks+0x164/0x1c8
      [   78.888500] lr : scatterwalk_copychunks+0x160/0x1c8
      [   78.893366] sp : ffff00001d04b600
      [   78.896668] x29: ffff00001d04b600 x28: ffff80006814c680
      [   78.901970] x27: 0000000000000000 x26: ffff80006c8de786
      [   78.907272] x25: ffff00001d04b760 x24: 000000000000001a
      [   78.912573] x23: 0000000000000006 x22: ffff80006814e440
      [   78.917874] x21: 0000000000000100 x20: 0000000000000000
      [   78.923175] x19: 000081ffffffffff x18: 0000000000000400
      [   78.928476] x17: 0000000000000008 x16: 0000000000000000
      [   78.933778] x15: 0000000000000100 x14: 0000000000000001
      [   78.939079] x13: 0000000000001080 x12: 0000000000000020
      [   78.944381] x11: 0000000000001080 x10: 00000000ffff0002
      [   78.949683] x9 : ffff80006814c248 x8 : 00000000ffff0000
      [   78.954985] x7 : ffff80006814c318 x6 : ffff80006c8de786
      [   78.960286] x5 : 0000000000000f80 x4 : ffff80006c8de000
      [   78.965588] x3 : 0000000000000000 x2 : 0000000000001086
      [   78.970889] x1 : ffff7e0001b74e02 x0 : 0000000000000000
      [   78.976192] Process openssl (pid: 6007, stack limit = 0x00000000291367f9)
      [   78.982968] Call trace:
      [   78.985406]  scatterwalk_copychunks+0x164/0x1c8
      [   78.989927]  skcipher_walk_next+0x28c/0x448
      [   78.994099]  skcipher_walk_done+0xfc/0x258
      [   78.998187]  gcm_encrypt+0x434/0x4c0
      [   79.001758]  tls_push_record+0x354/0xa58 [tls]
      [   79.006194]  bpf_exec_tx_verdict+0x1e4/0x3e8 [tls]
      [   79.010978]  tls_sw_sendmsg+0x650/0x780 [tls]
      [   79.015326]  inet_sendmsg+0x2c/0xf8
      [   79.018806]  sock_sendmsg+0x18/0x30
      [   79.022284]  __sys_sendto+0x104/0x138
      [   79.025935]  __arm64_sys_sendto+0x24/0x30
      [   79.029936]  el0_svc_common+0x60/0xe8
      [   79.033588]  el0_svc_handler+0x2c/0x80
      [   79.037327]  el0_svc+0x8/0xc
      [   79.040200] Code: 6b01005f 54fff788 940169b1 f9000320 (b9400801)
      [   79.046283] ---[ end trace 74db007d069c1cf7 ]---
      
      Fixes: d829e9c4 ("tls: convert to generic sk_msg interface")
      Signed-off-by: default avatarVakul Garg <vakul.garg@nxp.com>
      Acked-by: default avatarJohn Fastabend <john.fastabend@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5c1e7e94
    • Willem de Bruijn's avatar
      packet: validate address length · 99137b78
      Willem de Bruijn authored
      Packet sockets with SOCK_DGRAM may pass an address for use in
      dev_hard_header. Ensure that it is of sufficient length.
      Reported-by: default avatarsyzbot <syzkaller@googlegroups.com>
      Signed-off-by: default avatarWillem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      99137b78
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input · 0b517333
      Linus Torvalds authored
      Pull input fixes from Dmitry Torokhov:
       "Switching a few devices with Synaptics over to SMbus and disabling
        SMbus on a couple devices with Elan touchpads as they need more
        plumbing on PS/2 side"
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
        Input: synaptics - enable SMBus for HP EliteBook 840 G4
        Input: elantech - disable elan-i2c for P52 and P72
        Input: synaptics - enable RMI on ThinkPad T560
        Input: omap-keypad - fix idle configuration to not block SoC idle states
      0b517333
    • Linus Torvalds's avatar
      Merge tag 'gpio-v4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · bc380733
      Linus Torvalds authored
      Pull GPIO fixes from Linus Walleij:
       "Hopefully last round of GPIO fixes.
      
        The ACPI patch is pretty important for some laptop users, the rest is
        driver-specific for embedded (mostly ARM) systems.
      
        I took out one ACPI patch that wasn't critical enough because I
        couldn't justify sending it at this point, and that is why the commit
        date is today, but the patches have been in linux-next.
      
        Sorry for not sending some of them earlier :(
      
        Notice that we have a co-maintainer for GPIO now, Bartosz Golaszewski,
        and he might jump in and make some pull requests at times when I am
        off.
      
        Summary:
      
         - ACPI IRQ request deferral
      
         - OMAP: revert deferred wakeup quirk
      
         - MAX7301: fix DMA safe memory handling
      
         - MVEBU: selective probe failure on missing clk"
      
      * tag 'gpio-v4.20-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
        gpio: mvebu: only fail on missing clk if pwm is actually to be used
        gpio: max7301: fix driver for use with CONFIG_VMAP_STACK
        gpio: gpio-omap: Revert deferred wakeup quirk handling for regressions
        gpiolib-acpi: Only defer request_irq for GpioInt ACPI event handlers
      bc380733
    • Kangjie Lu's avatar
      net: netxen: fix a missing check and an uninitialized use · d134e486
      Kangjie Lu authored
      When netxen_rom_fast_read() fails, "bios" is left uninitialized and may
      contain random value, thus should not be used.
      
      The fix ensures that if netxen_rom_fast_read() fails, we return "-EIO".
      Signed-off-by: default avatarKangjie Lu <kjlu@umn.edu>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d134e486
    • Linus Torvalds's avatar
      Merge tag '4.20-rc7-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 · 78361955
      Linus Torvalds authored
      Pull smb3 fix from Steve French:
       "An important smb3 fix for an regression to some servers introduced by
        compounding optimization to rmdir.
      
        This fix has been tested by multiple developers (including me) with
        the usual private xfstesting, but also by the new cifs/smb3 "buildbot"
        xfstest VMs (thank you Ronnie and Aurelien for good work on this
        automation). The automated testing has been updated so that it will
        catch problems like this in the future.
      
        Note that Pavel discovered (very recently) some unrelated but
        extremely important bugs in credit handling (smb3 flow control problem
        that can lead to disconnects/reconnects) when compounding, that I
        would have liked to send in ASAP but the complete testing of those two
        fixes may not be done in time and have to wait for 4.21"
      
      * tag '4.20-rc7-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
        smb3: Fix rmdir compounding regression to strict servers
      78361955
    • Mantas Mikulėnas's avatar
      Input: synaptics - enable SMBus for HP EliteBook 840 G4 · 7a717122
      Mantas Mikulėnas authored
      dmesg reports that "Your touchpad (PNP: SYN3052 SYN0100 SYN0002 PNP0f13)
      says it can support a different bus."
      
      I've tested the offered psmouse.synaptics_intertouch=1 with 4.18.x and
      4.19.x and it seems to work well. No problems seen with suspend/resume.
      
      Also, it appears that RMI/SMBus mode is actually required for 3-4 finger
      multitouch gestures to work -- otherwise they are not reported at all.
      
      Information from dmesg in both modes:
      
        psmouse serio3: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1,
            caps: 0xf00123/0x840300/0x2e800/0x0, board id: 3139, fw id: 2000742
      
        psmouse serio3: synaptics: Trying to set up SMBus access
        rmi4_smbus 6-002c: registering SMbus-connected sensor
        rmi4_f01 rmi4-00.fn01: found RMI device,
            manufacturer: Synaptics, product: TM3139-001, fw id: 2000742
      Signed-off-by: default avatarMantas Mikulėnas <grawity@gmail.com>
      Reviewed-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      7a717122
    • Benjamin Tissoires's avatar
      Input: elantech - disable elan-i2c for P52 and P72 · d21ff5d7
      Benjamin Tissoires authored
      The current implementation of elan_i2c is known to not support those
      2 laptops.
      
      A proper fix is to tweak both elantech and elan_i2c to transmit the
      correct information from PS/2, which would make a bad candidate for
      stable.
      
      So to give us some time for fixing the root of the problem, disable
      elan_i2c for the devices we know are not behaving properly.
      
      Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803600
      Link: https://bugs.archlinux.org/task/59714
      Fixes: df077237 Input: elantech - detect new ICs and setup Host Notify for them
      
      Cc: stable@vger.kernel.org  # v4.18+
      Signed-off-by: default avatarBenjamin Tissoires <benjamin.tissoires@redhat.com>
      Acked-by: default avatarPeter Hutterer <peter.hutterer@who-t.net>
      Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
      d21ff5d7
    • Uwe Kleine-König's avatar
      gpio: mvebu: only fail on missing clk if pwm is actually to be used · c8da642d
      Uwe Kleine-König authored
      The gpio IP on Armada 370 at offset 0x18180 has neither a clk nor pwm
      registers. So there is no need for a clk as the pwm isn't used anyhow.
      So only check for the clk in the presence of the pwm registers. This fixes
      a failure to probe the gpio driver for the above mentioned gpio device.
      
      Fixes: 757642f9 ("gpio: mvebu: Add limited PWM support")
      Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
      Reviewed-by: default avatarGregory CLEMENT <gregory.clement@bootlin.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      c8da642d
    • Christophe Leroy's avatar
      gpio: max7301: fix driver for use with CONFIG_VMAP_STACK · abf221d2
      Christophe Leroy authored
      spi_read() and spi_write() require DMA-safe memory. When
      CONFIG_VMAP_STACK is selected, those functions cannot be used
      with buffers on stack.
      
      This patch replaces calls to spi_read() and spi_write() by
      spi_write_then_read() which doesn't require DMA-safe buffers.
      
      Fixes: 0c36ec31 ("gpio: gpio driver for max7301 SPI GPIO expander")
      Cc: <stable@vger.kernel.org>
      Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      abf221d2
    • Tony Lindgren's avatar
      gpio: gpio-omap: Revert deferred wakeup quirk handling for regressions · 00ded24c
      Tony Lindgren authored
      Commit ec0daae6 ("gpio: omap: Add level wakeup handling for omap4
      based SoCs") attempted to fix omap4 GPIO wakeup handling as it was
      blocking deeper SoC idle states. However this caused a regression for
      GPIOs during runtime having over second long latencies for Ethernet
      GPIO interrupt as reportedy by Russell King <rmk+kernel@armlinux.org.uk>.
      
      Let's fix this issue by doing a partial revert of the breaking commit.
      We still want to keep the quirk handling around as it is also used for
      OMAP_GPIO_QUIRK_IDLE_REMOVE_TRIGGER.
      
      The real fix for omap4 GPIO wakeup handling involves fixes for
      omap_set_gpio_trigger() and omap_gpio_unmask_irq() and will be posted
      separately. And we must keep the wakeup bit enabled during runtime
      because of module doing clock autogating with autoidle configured.
      Reported-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
      Fixes: ec0daae6 ("gpio: omap: Add level wakeup handling for omap4
      based SoCs")
      Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
      Cc: Grygorii Strashko <grygorii.strashko@ti.com>
      Cc: Keerthy <j-keerthy@ti.com>
      Cc: Ladislav Michl <ladis@linux-mips.org>
      Cc: Russell King <rmk+kernel@armlinux.org.uk>
      Cc: Tero Kristo <t-kristo@ti.com>
      Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
      Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
      00ded24c
    • Eric Dumazet's avatar
      tcp: fix a race in inet_diag_dump_icsk() · f0c928d8
      Eric Dumazet authored
      Alexei reported use after frees in inet_diag_dump_icsk() [1]
      
      Because we use refcount_set() when various sockets are setup and
      inserted into ehash, we also need to make sure inet_diag_dump_icsk()
      wont race with the refcount_set() operations.
      
      Jonathan Lemon sent a patch changing net_twsk_hashdance() but
      other spots would need risky changes.
      
      Instead, fix inet_diag_dump_icsk() as this bug came with
      linux-4.10 only.
      
      [1] Quoting Alexei :
      
      First something iterating over sockets finds already freed tw socket:
      
      refcount_t: increment on 0; use-after-free.
      WARNING: CPU: 2 PID: 2738 at lib/refcount.c:153 refcount_inc+0x26/0x30
      RIP: 0010:refcount_inc+0x26/0x30
      RSP: 0018:ffffc90004c8fbc0 EFLAGS: 00010282
      RAX: 000000000000002b RBX: 0000000000000000 RCX: 0000000000000000
      RDX: ffff88085ee9d680 RSI: ffff88085ee954c8 RDI: ffff88085ee954c8
      RBP: ffff88010ecbd2c0 R08: 0000000000000000 R09: 000000000000174c
      R10: ffffffff81e7c5a0 R11: 0000000000000000 R12: 0000000000000000
      R13: ffff8806ba9bf210 R14: ffffffff82304600 R15: ffff88010ecbd328
      FS:  00007f81f5a7d700(0000) GS:ffff88085ee80000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007f81e2a95000 CR3: 000000069b2eb006 CR4: 00000000003606e0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      Call Trace:
       inet_diag_dump_icsk+0x2b3/0x4e0 [inet_diag]  // sock_hold(sk); in net/ipv4/inet_diag.c:1002
       ? kmalloc_large_node+0x37/0x70
       ? __kmalloc_node_track_caller+0x1cb/0x260
       ? __alloc_skb+0x72/0x1b0
       ? __kmalloc_reserve.isra.40+0x2e/0x80
       __inet_diag_dump+0x3b/0x80 [inet_diag]
       netlink_dump+0x116/0x2a0
       netlink_recvmsg+0x205/0x3c0
       sock_read_iter+0x89/0xd0
       __vfs_read+0xf7/0x140
       vfs_read+0x8a/0x140
       SyS_read+0x3f/0xa0
       do_syscall_64+0x5a/0x100
      
      then a minute later twsk timer fires and hits two bad refcnts
      for this freed socket:
      
      refcount_t: decrement hit 0; leaking memory.
      WARNING: CPU: 31 PID: 0 at lib/refcount.c:228 refcount_dec+0x2e/0x40
      Modules linked in:
      RIP: 0010:refcount_dec+0x2e/0x40
      RSP: 0018:ffff88085f5c3ea8 EFLAGS: 00010296
      RAX: 000000000000002c RBX: ffff88010ecbd2c0 RCX: 000000000000083f
      RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000003f
      RBP: ffffc90003c77280 R08: 0000000000000000 R09: 00000000000017d3
      R10: ffffffff81e7c5a0 R11: 0000000000000000 R12: ffffffff82ad2d80
      R13: ffffffff8182de00 R14: ffff88085f5c3ef8 R15: 0000000000000000
      FS:  0000000000000000(0000) GS:ffff88085f5c0000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007fbe42685250 CR3: 0000000002209001 CR4: 00000000003606e0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      Call Trace:
       <IRQ>
       inet_twsk_kill+0x9d/0xc0  // inet_twsk_bind_unhash(tw, hashinfo);
       call_timer_fn+0x29/0x110
       run_timer_softirq+0x36b/0x3a0
      
      refcount_t: underflow; use-after-free.
      WARNING: CPU: 31 PID: 0 at lib/refcount.c:187 refcount_sub_and_test+0x46/0x50
      RIP: 0010:refcount_sub_and_test+0x46/0x50
      RSP: 0018:ffff88085f5c3eb8 EFLAGS: 00010296
      RAX: 0000000000000026 RBX: ffff88010ecbd2c0 RCX: 000000000000083f
      RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000003f
      RBP: ffff88010ecbd358 R08: 0000000000000000 R09: 000000000000185b
      R10: ffffffff81e7c5a0 R11: 0000000000000000 R12: ffff88010ecbd358
      R13: ffffffff8182de00 R14: ffff88085f5c3ef8 R15: 0000000000000000
      FS:  0000000000000000(0000) GS:ffff88085f5c0000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00007fbe42685250 CR3: 0000000002209001 CR4: 00000000003606e0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      Call Trace:
       <IRQ>
       inet_twsk_put+0x12/0x20  // inet_twsk_put(tw);
       call_timer_fn+0x29/0x110
       run_timer_softirq+0x36b/0x3a0
      
      Fixes: 67db3e4b ("tcp: no longer hold ehash lock while calling tcp_get_info()")
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Reported-by: default avatarAlexei Starovoitov <ast@kernel.org>
      Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
      Acked-by: default avatarJonathan Lemon <jonathan.lemon@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f0c928d8
    • Ganesh Goudar's avatar
      MAINTAINERS: update cxgb4 and cxgb3 maintainer · de985ec5
      Ganesh Goudar authored
      Arjun Vynipadath will be taking over as maintainer from now.
      Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      de985ec5
    • Herbert Xu's avatar
      ipv6: frags: Fix bogus skb->sk in reassembled packets · d15f5ac8
      Herbert Xu authored
      It was reported that IPsec would crash when it encounters an IPv6
      reassembled packet because skb->sk is non-zero and not a valid
      pointer.
      
      This is because skb->sk is now a union with ip_defrag_offset.
      
      This patch fixes this by resetting skb->sk when exiting from
      the reassembly code.
      Reported-by: default avatarXiumei Mu <xmu@redhat.com>
      Fixes: 219badfa ("ipv6: frags: get rid of ip6frag_skb_cb/...")
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d15f5ac8
    • Allan W. Nielsen's avatar
      mscc: Configured MAC entries should be locked. · 8fd1a4af
      Allan W. Nielsen authored
      The MAC table in Ocelot supports auto aging (normal) and static entries.
      MAC entries that is manually configured should be static and not subject
      to aging.
      
      Fixes: a556c76a ("net: mscc: Add initial Ocelot switch support")
      Signed-off-by: default avatarAllan Nielsen <allan.nielsen@microchip.com>
      Reviewed-by: default avatarSteen Hegelund <steen.hegelund@microchip.com>
      Signed-off-by: default avatarSteen Hegelund <steen.hegelund@microchip.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8fd1a4af
  2. 20 Dec, 2018 11 commits
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 9097a058
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "I2C has a MAINTAINERS update for you, so people will be immediately
        pointed to the right person for this previously orphaned driver.
      
        And one of Arnd's build warning fixes for a new driver added this
        cycle"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: nvidia-gpu: mark resume function as __maybe_unused
        MAINTAINERS: add entry for i2c-axxia driver
      9097a058
    • Linus Torvalds's avatar
      Merge tag 'upstream-4.20-rc7' of git://git.infradead.org/linux-ubifs · f57b620a
      Linus Torvalds authored
      Pull UBI/UBIFS fixes from Richard Weinberger:
      
       - Kconfig dependency fixes for our new auth feature
      
       - Fix for selecting the right compressor when creating a fs
      
       - Bugfix for a bug in UBIFS's O_TMPFILE implementation
      
       - Refcounting fixes for UBI
      
      * tag 'upstream-4.20-rc7' of git://git.infradead.org/linux-ubifs:
        ubifs: Handle re-linking of inodes correctly while recovery
        ubi: Do not drop UBI device reference before using
        ubi: Put MTD device after it is not used
        ubifs: Fix default compression selection in ubifs
        ubifs: Fix memory leak on error condition
        ubifs: auth: Add CONFIG_KEYS dependency
        ubifs: CONFIG_UBIFS_FS_AUTHENTICATION should depend on UBIFS_FS
        ubifs: replay: Fix high stack usage
      f57b620a
    • Daniel Vetter's avatar
    • Linus Torvalds's avatar
      Merge tag 'm68k-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k · 1d51b4b1
      Linus Torvalds authored
      Pull m68k fix from Geert Uytterhoeven:
       "Fix memblock-related crashes"
      
      * tag 'm68k-for-v4.20-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
        m68k: Fix memblock-related crashes
      1d51b4b1
    • Linus Torvalds's avatar
      Merge tag 'kbuild-fixes-v4.20-2' of... · c0f3ece4
      Linus Torvalds authored
      Merge tag 'kbuild-fixes-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
      
      Pull Kbuild fix from Masahiro Yamada:
       "Fix false positive warning/error about missing library for objtool"
      
      * tag 'kbuild-fixes-v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
        kbuild: fix false positive warning/error about missing libelf
      c0f3ece4
    • Linus Torvalds's avatar
      Merge tag 'char-misc-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · 122b7e33
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are three tiny last-minute driver fixes for 4.20-rc8 that resolve
        some reported issues, and one MAINTAINERS file update.
      
        All of them are related to the hyper-v subsystem, it seems people are
        actually testing and using it now, which is nice to see :)
      
        The fixes are:
         - uio_hv_generic: fix for opening multiple times
         - Remove PCI dependancy on hyperv drivers
         - return proper error code for an unopened channel.
      
        And Sasha has signed up to help out with the hyperv maintainership.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'char-misc-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        Drivers: hv: vmbus: Return -EINVAL for the sys files for unopened channels
        x86, hyperv: remove PCI dependency
        MAINTAINERS: Patch monkey for the Hyper-V code
        uio_hv_generic: set callbacks on open
      122b7e33
    • Linus Torvalds's avatar
      Merge tag 'tty-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · bfd7bd5b
      Linus Torvalds authored
      Pull tty/serial fix from Greg KH:
       "Here is a single fix, a revert, for the 8250 serial driver to resolve
        a reported problem.
      
        There was some attempted patches to fix the issue, but people are
        arguing about them, so reverting the patch to revert back to the 4.19
        and older behavior is the best thing to do at this late in the release
        cycle.
      
        The revert has been in linux-next with no reported issues"
      
      * tag 'tty-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        Revert "serial: 8250: Fix clearing FIFOs in RS485 mode again"
      bfd7bd5b
    • Linus Torvalds's avatar
      Merge tag 'usb-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 177c459b
      Linus Torvalds authored
      Pull USB fixes and ids from Greg KH:
       "Here are some late xhci fixes for 4.20-rc8 as well as a few new device
        ids for the option usb-serial driver.
      
        The xhci fixes resolve some many-reported issues and all of these have
        been in linux-next for a while with no reported problems"
      
      * tag 'usb-4.20-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
        USB: xhci: fix 'broken_suspend' placement in struct xchi_hcd
        xhci: Don't prevent USB2 bus suspend in state check intended for USB3 only
        USB: serial: option: add Telit LN940 series
        USB: serial: option: add Fibocom NL668 series
        USB: serial: option: add Simcom SIM7500/SIM7600 (MBIM mode)
        USB: serial: option: add GosunCn ZTE WeLink ME3630
        USB: serial: option: add HP lt4132
      177c459b
    • Linus Torvalds's avatar
      Merge tag 'mmc-v4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · d31aeb78
      Linus Torvalds authored
      Pull MMC fixes from Ulf Hansson:
       "MMC core:
         - Restore code to allow BKOPS and CACHE ctrl even if no HPI support
         - Reset HPI enabled state during re-init
         - Use a default minimum timeout when enabling CACHE ctrl
      
        MMC host:
         - omap_hsmmc: Fix DMA API warning
         - sdhci-tegra: Fix dt parsing of SDMMC pads autocal values
         - Correct register accesses when enabling v4 mode"
      
      * tag 'mmc-v4.20-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
        mmc: core: Use a minimum 1600ms timeout when enabling CACHE ctrl
        mmc: core: Allow BKOPS and CACHE ctrl even if no HPI support
        mmc: core: Reset HPI enabled state during re-init and in case of errors
        mmc: omap_hsmmc: fix DMA API warning
        mmc: tegra: Fix for SDMMC pads autocal parsing from dt
        mmc: sdhci: Fix sdhci_do_enable_v4_mode
      d31aeb78
    • Dave Chinner's avatar
      iomap: Revert "fs/iomap.c: get/put the page in iomap_page_create/release()" · a837eca2
      Dave Chinner authored
      This reverts commit 61c6de66.
      
      The reverted commit added page reference counting to iomap page
      structures that are used to track block size < page size state. This
      was supposed to align the code with page migration page accounting
      assumptions, but what it has done instead is break XFS filesystems.
      Every fstests run I've done on sub-page block size XFS filesystems
      has since picking up this commit 2 days ago has failed with bad page
      state errors such as:
      
      # ./run_check.sh "-m rmapbt=1,reflink=1 -i sparse=1 -b size=1k" "generic/038"
      ....
      SECTION       -- xfs
      FSTYP         -- xfs (debug)
      PLATFORM      -- Linux/x86_64 test1 4.20.0-rc6-dgc+
      MKFS_OPTIONS  -- -f -m rmapbt=1,reflink=1 -i sparse=1 -b size=1k /dev/sdc
      MOUNT_OPTIONS -- /dev/sdc /mnt/scratch
      
      generic/038 454s ...
       run fstests generic/038 at 2018-12-20 18:43:05
       XFS (sdc): Unmounting Filesystem
       XFS (sdc): Mounting V5 Filesystem
       XFS (sdc): Ending clean mount
       BUG: Bad page state in process kswapd0  pfn:3a7fa
       page:ffffea0000ccbeb0 count:0 mapcount:0 mapping:ffff88800d9b6360 index:0x1
       flags: 0xfffffc0000000()
       raw: 000fffffc0000000 dead000000000100 dead000000000200 ffff88800d9b6360
       raw: 0000000000000001 0000000000000000 00000000ffffffff
       page dumped because: non-NULL mapping
       CPU: 0 PID: 676 Comm: kswapd0 Not tainted 4.20.0-rc6-dgc+ #915
       Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014
       Call Trace:
        dump_stack+0x67/0x90
        bad_page.cold.116+0x8a/0xbd
        free_pcppages_bulk+0x4bf/0x6a0
        free_unref_page_list+0x10f/0x1f0
        shrink_page_list+0x49d/0xf50
        shrink_inactive_list+0x19d/0x3b0
        shrink_node_memcg.constprop.77+0x398/0x690
        ? shrink_slab.constprop.81+0x278/0x3f0
        shrink_node+0x7a/0x2f0
        kswapd+0x34b/0x6d0
        ? node_reclaim+0x240/0x240
        kthread+0x11f/0x140
        ? __kthread_bind_mask+0x60/0x60
        ret_from_fork+0x24/0x30
       Disabling lock debugging due to kernel taint
      ....
      
      The failures are from anyway that frees pages and empties the
      per-cpu page magazines, so it's not a predictable failure or an easy
      to debug failure.
      
      generic/038 is a reliable reproducer of this problem - it has a 9 in
      10 failure rate on one of my test machines. Failure on other
      machines have been at random points in fstests runs but every run
      has ended up tripping this problem. Hence generic/038 was used to
      bisect the failure because it was the most reliable failure.
      
      It is too close to the 4.20 release (not to mention holidays) to
      try to diagnose, fix and test the underlying cause of the problem,
      so reverting the commit is the only option we have right now. The
      revert has been tested against a current tot 4.20-rc7+ kernel across
      multiple machines running sub-page block size XFs filesystems and
      none of the bad page state failures have been seen.
      Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
      Cc: Piotr Jaroszynski <pjaroszynski@nvidia.com>
      Cc: Christoph Hellwig <hch@lst.de>
      Cc: William Kucharski <william.kucharski@oracle.com>
      Cc: Darrick J. Wong <darrick.wong@oracle.com>
      Cc: Brian Foster <bfoster@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a837eca2
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 519be699
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Off by one in netlink parsing of mac802154_hwsim, from Alexander
          Aring.
      
       2) nf_tables RCU usage fix from Taehee Yoo.
      
       3) Flow dissector needs nhoff and thoff clamping, from Stanislav
          Fomichev.
      
       4) Missing sin6_flowinfo initialization in SCTP, from Xin Long.
      
       5) Spectrev1 in ipmr and ip6mr, from Gustavo A. R. Silva.
      
       6) Fix r8169 crash when DEBUG_SHIRQ is enabled, from Heiner Kallweit.
      
       7) Fix SKB leak in rtlwifi, from Larry Finger.
      
       8) Fix state pruning in bpf verifier, from Jakub Kicinski.
      
       9) Don't handle completely duplicate fragments as overlapping, from
          Michal Kubecek.
      
      10) Fix memory corruption with macb and 64-bit DMA, from Anssi Hannula.
      
      11) Fix TCP fallback socket release in smc, from Myungho Jung.
      
      12) gro_cells_destroy needs to napi_disable, from Lorenzo Bianconi.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (130 commits)
        rds: Fix warning.
        neighbor: NTF_PROXY is a valid ndm_flag for a dump request
        net: mvpp2: fix the phylink mode validation
        net/sched: cls_flower: Remove old entries from rhashtable
        net/tls: allocate tls context using GFP_ATOMIC
        iptunnel: make TUNNEL_FLAGS available in uapi
        gro_cell: add napi_disable in gro_cells_destroy
        lan743x: Remove MAC Reset from initialization
        net/mlx5e: Remove the false indication of software timestamping support
        net/mlx5: Typo fix in del_sw_hw_rule
        net/mlx5e: RX, Fix wrong early return in receive queue poll
        ipv6: explicitly initialize udp6_addr in udp_sock_create6()
        bnxt_en: Fix ethtool self-test loopback.
        net/rds: remove user triggered WARN_ON in rds_sendmsg
        net/rds: fix warn in rds_message_alloc_sgs
        ath10k: skip sending quiet mode cmd for WCN3990
        mac80211: free skb fraglist before freeing the skb
        nl80211: fix memory leak if validate_pae_over_nl80211() fails
        net/smc: fix TCP fallback socket release
        vxge: ensure data0 is initialized in when fetching firmware version information
        ...
      519be699