1. 24 1月, 2020 10 次提交
  2. 23 1月, 2020 9 次提交
  3. 22 1月, 2020 2 次提交
  4. 21 1月, 2020 4 次提交
    • E
      io_uring: fix compat for IORING_REGISTER_FILES_UPDATE · 1292e972
      Eugene Syromiatnikov 提交于
      fds field of struct io_uring_files_update is problematic with regards
      to compat user space, as pointer size is different in 32-bit, 32-on-64-bit,
      and 64-bit user space.  In order to avoid custom handling of compat in
      the syscall implementation, make fds __u64 and use u64_to_user_ptr in
      order to retrieve it.  Also, align the field naturally and check that
      no garbage is passed there.
      
      Fixes: c3a31e60 ("io_uring: add support for IORING_REGISTER_FILES_UPDATE")
      Signed-off-by: NEugene Syromiatnikov <esyr@redhat.com>
      Signed-off-by: NJens Axboe <axboe@kernel.dk>
      1292e972
    • M
      tracing: Do not set trace clock if tracefs lockdown is in effect · bf24daac
      Masami Ichikawa 提交于
      When trace_clock option is not set and unstable clcok detected,
      tracing_set_default_clock() sets trace_clock(ThinkPad A285 is one of
      case). In that case, if lockdown is in effect, null pointer
      dereference error happens in ring_buffer_set_clock().
      
      Link: http://lkml.kernel.org/r/20200116131236.3866925-1-masami256@gmail.com
      
      Cc: stable@vger.kernel.org
      Fixes: 17911ff3 ("tracing: Add locked_down checks to the open calls of files created for tracefs")
      Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1788488Signed-off-by: NMasami Ichikawa <masami256@gmail.com>
      Signed-off-by: NSteven Rostedt (VMware) <rostedt@goodmis.org>
      bf24daac
    • S
      tracing: Fix histogram code when expression has same var as value · 8bcebc77
      Steven Rostedt (VMware) 提交于
      While working on a tool to convert SQL syntex into the histogram language of
      the kernel, I discovered the following bug:
      
       # echo 'first u64 start_time u64 end_time pid_t pid u64 delta' >> synthetic_events
       # echo 'hist:keys=pid:start=common_timestamp' > events/sched/sched_waking/trigger
       # echo 'hist:keys=next_pid:delta=common_timestamp-$start,start2=$start:onmatch(sched.sched_waking).trace(first,$start2,common_timestamp,next_pid,$delta)' > events/sched/sched_switch/trigger
      
      Would not display any histograms in the sched_switch histogram side.
      
      But if I were to swap the location of
      
        "delta=common_timestamp-$start" with "start2=$start"
      
      Such that the last line had:
      
       # echo 'hist:keys=next_pid:start2=$start,delta=common_timestamp-$start:onmatch(sched.sched_waking).trace(first,$start2,common_timestamp,next_pid,$delta)' > events/sched/sched_switch/trigger
      
      The histogram works as expected.
      
      What I found out is that the expressions clear out the value once it is
      resolved. As the variables are resolved in the order listed, when
      processing:
      
        delta=common_timestamp-$start
      
      The $start is cleared. When it gets to "start2=$start", it errors out with
      "unresolved symbol" (which is silent as this happens at the location of the
      trace), and the histogram is dropped.
      
      When processing the histogram for variable references, instead of adding a
      new reference for a variable used twice, use the same reference. That way,
      not only is it more efficient, but the order will no longer matter in
      processing of the variables.
      
      From Tom Zanussi:
      
       "Just to clarify some more about what the problem was is that without
        your patch, we would have two separate references to the same variable,
        and during resolve_var_refs(), they'd both want to be resolved
        separately, so in this case, since the first reference to start wasn't
        part of an expression, it wouldn't get the read-once flag set, so would
        be read normally, and then the second reference would do the read-once
        read and also be read but using read-once.  So everything worked and
        you didn't see a problem:
      
         from: start2=$start,delta=common_timestamp-$start
      
        In the second case, when you switched them around, the first reference
        would be resolved by doing the read-once, and following that the second
        reference would try to resolve and see that the variable had already
        been read, so failed as unset, which caused it to short-circuit out and
        not do the trigger action to generate the synthetic event:
      
         to: delta=common_timestamp-$start,start2=$start
      
        With your patch, we only have the single resolution which happens
        correctly the one time it's resolved, so this can't happen."
      
      Link: https://lore.kernel.org/r/20200116154216.58ca08eb@gandalf.local.home
      
      Cc: stable@vger.kernel.org
      Fixes: 067fe038 ("tracing: Add variable reference handling to hist triggers")
      Reviewed-by: NTom Zanuss <zanussi@kernel.org>
      Tested-by: NTom Zanussi <zanussi@kernel.org>
      Signed-off-by: NSteven Rostedt (VMware) <rostedt@goodmis.org>
      8bcebc77
    • L
      Merge tag 'fixes_for_v5.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs · d96d875e
      Linus Torvalds 提交于
      Pull reiserfs fix from Jan Kara:
       "A fixup of a recently merged reiserfs fix which has caused problem
        when xattrs were not compiled in"
      
      * tag 'fixes_for_v5.5-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
        reiserfs: fix handling of -EOPNOTSUPP in reiserfs_for_each_xattr
      d96d875e
  5. 20 1月, 2020 4 次提交
    • L
      Linux 5.5-rc7 · def9d278
      Linus Torvalds 提交于
      def9d278
    • L
      Merge tag 'riscv/for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 7008ee12
      Linus Torvalds 提交于
      Pull RISC-V fixes from Paul Walmsley:
       "Three fixes for RISC-V:
      
         - Don't free and reuse memory containing the code that CPUs parked at
           boot reside in.
      
         - Fix rv64 build problems for ubsan and some modules by adding
           logical and arithmetic shift helpers for 128-bit values. These are
           from libgcc and are similar to what's present for ARM64.
      
         - Fix vDSO builds to clean up their own temporary files"
      
      * tag 'riscv/for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        riscv: Less inefficient gcc tishift helpers (and export their symbols)
        riscv: delete temporary files
        riscv: make sure the cores stay looping in .Lsecondary_park
      7008ee12
    • L
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 11a82729
      Linus Torvalds 提交于
      Pull networking fixes from David Miller:
      
       1) Fix non-blocking connect() in x25, from Martin Schiller.
      
       2) Fix spurious decryption errors in kTLS, from Jakub Kicinski.
      
       3) Netfilter use-after-free in mtype_destroy(), from Cong Wang.
      
       4) Limit size of TSO packets properly in lan78xx driver, from Eric
          Dumazet.
      
       5) r8152 probe needs an endpoint sanity check, from Johan Hovold.
      
       6) Prevent looping in tcp_bpf_unhash() during sockmap/tls free, from
          John Fastabend.
      
       7) hns3 needs short frames padded on transmit, from Yunsheng Lin.
      
       8) Fix netfilter ICMP header corruption, from Eyal Birger.
      
       9) Fix soft lockup when low on memory in hns3, from Yonglong Liu.
      
      10) Fix NTUPLE firmware command failures in bnxt_en, from Michael Chan.
      
      11) Fix memory leak in act_ctinfo, from Eric Dumazet.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits)
        cxgb4: reject overlapped queues in TC-MQPRIO offload
        cxgb4: fix Tx multi channel port rate limit
        net: sched: act_ctinfo: fix memory leak
        bnxt_en: Do not treat DSN (Digital Serial Number) read failure as fatal.
        bnxt_en: Fix ipv6 RFS filter matching logic.
        bnxt_en: Fix NTUPLE firmware command failures.
        net: systemport: Fixed queue mapping in internal ring map
        net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec
        net: dsa: sja1105: Don't error out on disabled ports with no phy-mode
        net: phy: dp83867: Set FORCE_LINK_GOOD to default after reset
        net: hns: fix soft lockup when there is not enough memory
        net: avoid updating qdisc_xmit_lock_key in netdev_update_lockdep_key()
        net/sched: act_ife: initalize ife->metalist earlier
        netfilter: nat: fix ICMP header corruption on ICMP errors
        net: wan: lapbether.c: Use built-in RCU list checking
        netfilter: nf_tables: fix flowtable list del corruption
        netfilter: nf_tables: fix memory leak in nf_tables_parse_netdev_hooks()
        netfilter: nf_tables: remove WARN and add NLA_STRING upper limits
        netfilter: nft_tunnel: ERSPAN_VERSION must not be null
        netfilter: nft_tunnel: fix null-attribute check
        ...
      11a82729
    • L
      Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 5f436443
      Linus Torvalds 提交于
      Pull i2c fixes from Wolfram Sang:
       "Two runtime PM fixes and one leak fix"
      
      * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: iop3xx: Fix memory leak in probe error path
        i2c: tegra: Properly disable runtime PM on driver's probe error
        i2c: tegra: Fix suspending in active runtime PM state
      5f436443
  6. 19 1月, 2020 11 次提交
    • R
      cxgb4: reject overlapped queues in TC-MQPRIO offload · b2383ad9
      Rahul Lakkireddy 提交于
      A queue can't belong to multiple traffic classes. So, reject
      any such configuration that results in overlapped queues for a
      traffic class.
      
      Fixes: b1396c2b ("cxgb4: parse and configure TC-MQPRIO offload")
      Signed-off-by: NRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b2383ad9
    • R
      cxgb4: fix Tx multi channel port rate limit · c856e2b6
      Rahul Lakkireddy 提交于
      T6 can support 2 egress traffic management channels per port to
      double the total number of traffic classes that can be configured.
      In this configuration, if the class belongs to the other channel,
      then all the queues must be bound again explicitly to the new class,
      for the rate limit parameters on the other channel to take effect.
      
      So, always explicitly bind all queues to the port rate limit traffic
      class, regardless of the traffic management channel that it belongs
      to. Also, only bind queues to port rate limit traffic class, if all
      the queues don't already belong to an existing different traffic
      class.
      
      Fixes: 4ec4762d ("cxgb4: add TC-MATCHALL classifier egress offload")
      Signed-off-by: NRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c856e2b6
    • E
      net: sched: act_ctinfo: fix memory leak · 09d4f10a
      Eric Dumazet 提交于
      Implement a cleanup method to properly free ci->params
      
      BUG: memory leak
      unreferenced object 0xffff88811746e2c0 (size 64):
        comm "syz-executor617", pid 7106, jiffies 4294943055 (age 14.250s)
        hex dump (first 32 bytes):
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
          c0 34 60 84 ff ff ff ff 00 00 00 00 00 00 00 00  .4`.............
        backtrace:
          [<0000000015aa236f>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
          [<0000000015aa236f>] slab_post_alloc_hook mm/slab.h:586 [inline]
          [<0000000015aa236f>] slab_alloc mm/slab.c:3320 [inline]
          [<0000000015aa236f>] kmem_cache_alloc_trace+0x145/0x2c0 mm/slab.c:3549
          [<000000002c946bd1>] kmalloc include/linux/slab.h:556 [inline]
          [<000000002c946bd1>] kzalloc include/linux/slab.h:670 [inline]
          [<000000002c946bd1>] tcf_ctinfo_init+0x21a/0x530 net/sched/act_ctinfo.c:236
          [<0000000086952cca>] tcf_action_init_1+0x400/0x5b0 net/sched/act_api.c:944
          [<000000005ab29bf8>] tcf_action_init+0x135/0x1c0 net/sched/act_api.c:1000
          [<00000000392f56f9>] tcf_action_add+0x9a/0x200 net/sched/act_api.c:1410
          [<0000000088f3c5dd>] tc_ctl_action+0x14d/0x1bb net/sched/act_api.c:1465
          [<000000006b39d986>] rtnetlink_rcv_msg+0x178/0x4b0 net/core/rtnetlink.c:5424
          [<00000000fd6ecace>] netlink_rcv_skb+0x61/0x170 net/netlink/af_netlink.c:2477
          [<0000000047493d02>] rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5442
          [<00000000bdcf8286>] netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
          [<00000000bdcf8286>] netlink_unicast+0x223/0x310 net/netlink/af_netlink.c:1328
          [<00000000fc5b92d9>] netlink_sendmsg+0x2c0/0x570 net/netlink/af_netlink.c:1917
          [<00000000da84d076>] sock_sendmsg_nosec net/socket.c:639 [inline]
          [<00000000da84d076>] sock_sendmsg+0x54/0x70 net/socket.c:659
          [<0000000042fb2eee>] ____sys_sendmsg+0x2d0/0x300 net/socket.c:2330
          [<000000008f23f67e>] ___sys_sendmsg+0x8a/0xd0 net/socket.c:2384
          [<00000000d838e4f6>] __sys_sendmsg+0x80/0xf0 net/socket.c:2417
          [<00000000289a9cb1>] __do_sys_sendmsg net/socket.c:2426 [inline]
          [<00000000289a9cb1>] __se_sys_sendmsg net/socket.c:2424 [inline]
          [<00000000289a9cb1>] __x64_sys_sendmsg+0x23/0x30 net/socket.c:2424
      
      Fixes: 24ec483c ("net: sched: Introduce act_ctinfo action")
      Signed-off-by: NEric Dumazet <edumazet@google.com>
      Reported-by: Nsyzbot <syzkaller@googlegroups.com>
      Cc: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
      Cc: Cong Wang <xiyou.wangcong@gmail.com>
      Cc: Toke Høiland-Jørgensen <toke@redhat.com>
      Acked-by: NKevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      09d4f10a
    • O
      riscv: Less inefficient gcc tishift helpers (and export their symbols) · fc585d4a
      Olof Johansson 提交于
      The existing __lshrti3 was really inefficient, and the other two helpers
      are also needed to compile some modules.
      
      Add the missing versions, and export all of the symbols like arm64
      already does.
      
      This code is based on the assembly generated by libgcc builds.
      
      This fixes a build break triggered by ubsan:
      
      riscv64-unknown-linux-gnu-ld: lib/ubsan.o: in function `.L2':
      ubsan.c:(.text.unlikely+0x38): undefined reference to `__ashlti3'
      riscv64-unknown-linux-gnu-ld: ubsan.c:(.text.unlikely+0x42): undefined reference to `__ashrti3'
      Signed-off-by: NOlof Johansson <olof@lixom.net>
      [paul.walmsley@sifive.com: use SYM_FUNC_{START,END} instead of
       ENTRY/ENDPROC; note libgcc origin]
      Signed-off-by: NPaul Walmsley <paul.walmsley@sifive.com>
      fc585d4a
    • L
      Merge tag 'mtd/fixes-for-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux · 8f8972a3
      Linus Torvalds 提交于
      Pull MTD fixes from Miquel Raynal:
       "Raw NAND:
         - GPMI: Fix the suspend/resume
      
        SPI-NOR:
         - Fix quad enable on Spansion like flashes
         - Fix selection of 4-byte addressing opcodes on Spansion"
      
      * tag 'mtd/fixes-for-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
        mtd: rawnand: gpmi: Restore nfc timing setup after suspend/resume
        mtd: rawnand: gpmi: Fix suspend/resume problem
        mtd: spi-nor: Fix quad enable for Spansion like flashes
        mtd: spi-nor: Fix selection of 4-byte addressing opcodes on Spansion
      8f8972a3
    • L
      Merge tag 'drm-fixes-2020-01-19' of git://anongit.freedesktop.org/drm/drm · 244dc268
      Linus Torvalds 提交于
      Pull drm fixes from Dave Airlie:
       "Back from LCA2020, fixes wasn't too busy last week, seems to have
        quieten down appropriately, some amdgpu, i915, then a core mst fix and
        one fix for virtio-gpu and one for rockchip:
      
        core mst:
         - serialize down messages and clear timeslots are on unplug
      
        amdgpu:
         - Update golden settings for renoir
         - eDP fix
      
        i915:
         - uAPI fix: Remove dash and colon from PMU names to comply with
           tools/perf
         - Fix for include file that was indirectly included
         - Two fixes to make sure VMA are marked active for error capture
      
        virtio:
         - maintain obj reservation lock when submitting cmds
      
        rockchip:
         - increase link rate var size to accommodate rates"
      
      * tag 'drm-fixes-2020-01-19' of git://anongit.freedesktop.org/drm/drm:
        drm/amd/display: Reorder detect_edp_sink_caps before link settings read.
        drm/amdgpu: update goldensetting for renoir
        drm/dp_mst: Have DP_Tx send one msg at a time
        drm/dp_mst: clear time slots for ports invalid
        drm/i915/pmu: Do not use colons or dashes in PMU names
        drm/rockchip: fix integer type used for storing dp data rate
        drm/i915/gt: Mark ring->vma as active while pinned
        drm/i915/gt: Mark context->state vma as active while pinned
        drm/i915/gt: Skip trying to unbind in restore_ggtt_mappings
        drm/i915: Add missing include file <linux/math64.h>
        drm/virtio: add missing virtio_gpu_array_lock_resv call
      244dc268
    • I
      riscv: delete temporary files · 95f4d9cc
      Ilie Halip 提交于
      Temporary files used in the VDSO build process linger on even after make
      mrproper: vdso-dummy.o.tmp, vdso.so.dbg.tmp.
      
      Delete them once they're no longer needed.
      Signed-off-by: NIlie Halip <ilie.halip@gmail.com>
      Signed-off-by: NPaul Walmsley <paul.walmsley@sifive.com>
      95f4d9cc
    • L
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0cc2682d
      Linus Torvalds 提交于
      Pull x86 fixes from Ingo Molnar:
       "Misc fixes:
      
         - a resctrl fix for uninitialized objects found by debugobjects
      
         - a resctrl memory leak fix
      
         - fix the unintended re-enabling of the of SME and SEV CPU flags if
           memory encryption was disabled at bootup via the MSR space"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/CPU/AMD: Ensure clearing of SME/SEV features is maintained
        x86/resctrl: Fix potential memory leak
        x86/resctrl: Fix an imbalance in domain_remove_cpu()
      0cc2682d
    • L
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 7ff15cd0
      Linus Torvalds 提交于
      Pull timer fixes from Ingo Molnar:
       "Three fixes: fix link failure on Alpha, fix a Sparse warning and
        annotate/robustify a lockless access in the NOHZ code"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        tick/sched: Annotate lockless access to last_jiffies_update
        lib/vdso: Make __cvdso_clock_getres() static
        time/posix-stubs: Provide compat itimer supoprt for alpha
      7ff15cd0
    • L
      Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9e79c523
      Linus Torvalds 提交于
      Pull cpu/SMT fix from Ingo Molnar:
       "Fix a build bug on CONFIG_HOTPLUG_SMT=y && !CONFIG_SYSFS kernels"
      
      * 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        cpu/SMT: Fix x86 link error without CONFIG_SYSFS
      9e79c523
    • L
      Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · a186c112
      Linus Torvalds 提交于
      Pull x86 RAS fix from Ingo Molnar:
       "Fix a thermal throttling race that can result in easy to trigger boot
        crashes on certain Ice Lake platforms"
      
      * 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/mce/therm_throt: Do not access uninitialized therm_work
      a186c112