1. 04 May, 2017 30 commits
  2. 01 May, 2017 1 commit
  3. 30 Apr, 2017 3 commits
  4. 29 Apr, 2017 3 commits
  5. 28 Apr, 2017 3 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 0e911788
      Linus Torvalds authored
      Pull networking fixes from David Miller:
       "Just a couple more stragglers, I really hope this is it.
      
        1) Don't let frags slip down into the GRO segmentation handlers, from
           Steffen Klassert.
      
        2) Truesize under-estimation triggers warnings in TCP over loopback
           with socket filters, 2 part fix from Eric Dumazet.
      
        3) Fix undesirable reset of bonding MTU to ETH_HLEN on slave removal,
           from Paolo Abeni.
      
        4) If we flush the XFRM policy after garbage collection, it doesn't
           work because stray entries can be created afterwards. Fix from Xin
           Long.
      
        5) Hung socket connection fixes in TIPC from Parthasarathy Bhuvaragan.
      
        6) Fix GRO regression with IPSEC when netfilter is disabled, from
           Sabrina Dubroca.
      
        7) Fix cpsw driver Kconfig dependency regression, from Arnd Bergmann"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        net: hso: register netdev later to avoid a race condition
        net: adjust skb->truesize in ___pskb_trim()
        tcp: do not underestimate skb->truesize in tcp_trim_head()
        bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
        ipv4: Don't pass IP fragments to upper layer GRO handlers.
        cpsw/netcp: refine cpts dependency
        tipc: close the connection if protocol messages contain errors
        tipc: improve error validations for sockets in CONNECTING state
        tipc: Fix missing connection request handling
        xfrm: fix GRO for !CONFIG_NETFILTER
        xfrm: do the garbage collection after flushing policy
      0e911788
    • Andreas Kemnade's avatar
      net: hso: register netdev later to avoid a race condition · 4c761daf
      Andreas Kemnade authored
      If the netdev is accessed before the urbs are initialized,
      there will be NULL pointer dereferences. That is avoided by
      registering it when it is fully initialized.
      
      This case occurs e.g. if dhcpcd is running in the background
      and the device is probed, either after insmod hso or
      when the device appears on the usb bus.
      
      A backtrace is the following:
      
      [ 1357.356048] usb 1-2: new high-speed USB device number 12 using ehci-omap
      [ 1357.551177] usb 1-2: New USB device found, idVendor=0af0, idProduct=8800
      [ 1357.558654] usb 1-2: New USB device strings: Mfr=3, Product=2, SerialNumber=0
      [ 1357.568572] usb 1-2: Product: Globetrotter HSUPA Modem
      [ 1357.574096] usb 1-2: Manufacturer: Option N.V.
      [ 1357.685882] hso 1-2:1.5: Not our interface
      [ 1460.886352] hso: unloaded
      [ 1460.889984] usbcore: deregistering interface driver hso
      [ 1513.769134] hso: ../drivers/net/usb/hso.c: Option Wireless
      [ 1513.846771] Unable to handle kernel NULL pointer dereference at virtual address 00000030
      [ 1513.887664] hso 1-2:1.5: Not our interface
      [ 1513.906890] usbcore: registered new interface driver hso
      [ 1513.937988] pgd = ecdec000
      [ 1513.949890] [00000030] *pgd=acd15831, *pte=00000000, *ppte=00000000
      [ 1513.956573] Internal error: Oops: 817 [#1] PREEMPT SMP ARM
      [ 1513.962371] Modules linked in: hso usb_f_ecm omap2430 bnep bluetooth g_ether usb_f_rndis u_ether libcomposite configfs ipv6 arc4 wl18xx wlcore mac80211 cfg80211 bq27xxx_battery panel_tpo_td028ttec1 omapdrm drm_kms_helper cfbfillrect snd_soc_simple_card syscopyarea cfbimgblt snd_soc_simple_card_utils sysfillrect sysimgblt fb_sys_fops snd_soc_omap_twl4030 cfbcopyarea encoder_opa362 drm twl4030_madc_hwmon wwan_on_off snd_soc_gtm601 pwm_omap_dmtimer generic_adc_battery connector_analog_tv pwm_bl extcon_gpio omap3_isp wlcore_sdio videobuf2_dma_contig videobuf2_memops w1_bq27000 videobuf2_v4l2 videobuf2_core omap_hdq snd_soc_omap_mcbsp ov9650 snd_soc_omap bmp280_i2c bmg160_i2c v4l2_common snd_pcm_dmaengine bmp280 bmg160_core at24 bmc150_magn_i2c nvmem_core videodev phy_twl4030_usb bmc150_accel_i2c tsc2007
      [ 1514.037384]  bmc150_magn bmc150_accel_core media leds_tca6507 bno055 industrialio_triggered_buffer kfifo_buf gpio_twl4030 musb_hdrc snd_soc_twl4030 twl4030_vibra twl4030_madc twl4030_pwrbutton twl4030_charger industrialio w2sg0004 ehci_omap omapdss [last unloaded: hso]
      [ 1514.062622] CPU: 0 PID: 3433 Comm: dhcpcd Tainted: G        W       4.11.0-rc8-letux+ #1
      [ 1514.071136] Hardware name: Generic OMAP36xx (Flattened Device Tree)
      [ 1514.077758] task: ee748240 task.stack: ecdd6000
      [ 1514.082580] PC is at hso_start_net_device+0x50/0xc0 [hso]
      [ 1514.088287] LR is at hso_net_open+0x68/0x84 [hso]
      [ 1514.093231] pc : [<bf79c304>]    lr : [<bf79ced8>]    psr: a00f0013
      sp : ecdd7e20  ip : 00000000  fp : ffffffff
      [ 1514.105316] r10: 00000000  r9 : ed0e080c  r8 : ecd8fe2c
      [ 1514.110839] r7 : bf79cef4  r6 : ecd8fe00  r5 : 00000000  r4 : ed0dbd80
      [ 1514.117706] r3 : 00000000  r2 : c0020c80  r1 : 00000000  r0 : ecdb7800
      [ 1514.124572] Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
      [ 1514.132110] Control: 10c5387d  Table: acdec019  DAC: 00000051
      [ 1514.138153] Process dhcpcd (pid: 3433, stack limit = 0xecdd6218)
      [ 1514.144470] Stack: (0xecdd7e20 to 0xecdd8000)
      [ 1514.149078] 7e20: ed0dbd80 ecd8fe98 00000001 00000000 ecd8f800 ecd8fe00 ecd8fe60 00000000
      [ 1514.157714] 7e40: ed0e080c bf79ced8 bf79ce70 ecd8f800 00000001 bf7a0258 ecd8f830 c068d958
      [ 1514.166320] 7e60: c068d8b8 ecd8f800 00000001 00001091 00001090 c068dba4 ecd8f800 00001090
      [ 1514.174926] 7e80: ecd8f940 ecd8f800 00000000 c068dc60 00000000 00000001 ed0e0800 ecd8f800
      [ 1514.183563] 7ea0: 00000000 c06feaa8 c0ca39c2 beea57dc 00000020 00000000 306f7368 00000000
      [ 1514.192169] 7ec0: 00000000 00000000 00001091 00000000 00000000 00000000 00000000 00008914
      [ 1514.200805] 7ee0: eaa9ab60 beea57dc c0c9bfc0 eaa9ab40 00000006 00000000 00046858 c066a948
      [ 1514.209411] 7f00: beea57dc eaa9ab60 ecc6b0c0 c02837b0 00000006 c0282c90 0000c000 c0283654
      [ 1514.218017] 7f20: c09b0c00 c098bc31 00000001 c0c5e513 c0c5e513 00000000 c0151354 c01a20c0
      [ 1514.226654] 7f40: c0c5e513 c01a3134 ecdd6000 c01a3160 ee7487f0 600f0013 00000000 ee748240
      [ 1514.235260] 7f60: ee748734 00000000 ecc6b0c0 ecc6b0c0 beea57dc 00008914 00000006 00000000
      [ 1514.243896] 7f80: 00046858 c02837b0 00001091 0003a1f0 00046608 0003a248 00000036 c01071e4
      [ 1514.252502] 7fa0: ecdd6000 c0107040 0003a1f0 00046608 00000006 00008914 beea57dc 00001091
      [ 1514.261108] 7fc0: 0003a1f0 00046608 0003a248 00000036 0003ac0c 00046608 00046610 00046858
      [ 1514.269744] 7fe0: 0003a0ac beea57d4 000167eb b6f23106 400f0030 00000006 00000000 00000000
      [ 1514.278411] [<bf79c304>] (hso_start_net_device [hso]) from [<bf79ced8>] (hso_net_open+0x68/0x84 [hso])
      [ 1514.288238] [<bf79ced8>] (hso_net_open [hso]) from [<c068d958>] (__dev_open+0xa0/0xf4)
      [ 1514.296600] [<c068d958>] (__dev_open) from [<c068dba4>] (__dev_change_flags+0x8c/0x130)
      [ 1514.305023] [<c068dba4>] (__dev_change_flags) from [<c068dc60>] (dev_change_flags+0x18/0x48)
      [ 1514.313934] [<c068dc60>] (dev_change_flags) from [<c06feaa8>] (devinet_ioctl+0x348/0x714)
      [ 1514.322540] [<c06feaa8>] (devinet_ioctl) from [<c066a948>] (sock_ioctl+0x2b0/0x308)
      [ 1514.330627] [<c066a948>] (sock_ioctl) from [<c0282c90>] (vfs_ioctl+0x20/0x34)
      [ 1514.338165] [<c0282c90>] (vfs_ioctl) from [<c0283654>] (do_vfs_ioctl+0x82c/0x93c)
      [ 1514.346038] [<c0283654>] (do_vfs_ioctl) from [<c02837b0>] (SyS_ioctl+0x4c/0x74)
      [ 1514.353759] [<c02837b0>] (SyS_ioctl) from [<c0107040>] (ret_fast_syscall+0x0/0x1c)
      [ 1514.361755] Code: e3822103 e3822080 e1822781 e5981014 (e5832030)
      [ 1514.510833] ---[ end trace dfb3e53c657f34a0 ]---
      Reported-by: default avatarH. Nikolaus Schaller <hns@goldelico.com>
      Signed-off-by: default avatarAndreas Kemnade <andreas@kemnade.info>
      Reviewed-by: default avatarJohan Hovold <johan@kernel.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4c761daf
    • Eric Dumazet's avatar
      net: adjust skb->truesize in ___pskb_trim() · c21b48cc
      Eric Dumazet authored
      Andrey found a way to trigger the WARN_ON_ONCE(delta < len) in
      skb_try_coalesce() using syzkaller and a filter attached to a TCP
      socket.
      
      As we did recently in commit 158f323b ("net: adjust skb->truesize in
      pskb_expand_head()") we can adjust skb->truesize from ___pskb_trim(),
      via a call to skb_condense().
      
      If all frags were freed, then skb->truesize can be recomputed.
      
      This call can be done if skb is not yet owned, or destructor is
      sock_edemux().
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Reported-by: default avatarAndrey Konovalov <andreyknvl@google.com>
      Cc: Willem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c21b48cc