1. 29 Nov, 2019 6 commits
  2. 27 Nov, 2019 9 commits
  3. 25 Nov, 2019 17 commits
  4. 15 Nov, 2019 3 commits
  5. 08 Nov, 2019 3 commits
  6. 06 Nov, 2019 2 commits
    • Yan-Hsuan Chuang's avatar
      rtw88: fix potential NULL pointer access for firmware · f530c196
      Yan-Hsuan Chuang authored
      Driver could access a NULL firmware pointer if we don't
      return here.
      
      Fixes: 5195b904 ("rtw88: avoid FW info flood")
      Reported-by: default avatarkbuild test robot <lkp@intel.com>
      Reported-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
      f530c196
    • Ping-Ke Shih's avatar
      rtlwifi: fix memory leak in rtl92c_set_fw_rsvdpagepkt() · 5174f1e4
      Ping-Ke Shih authored
      This leak was found by testing the EDIMAX EW-7612 on Raspberry Pi 3B+ with
      Linux 5.4-rc5 (multi_v7_defconfig + rtlwifi + kmemleak) and noticed a
      single memory leak during probe:
      
      unreferenced object 0xec13ee40 (size 176):
        comm "kworker/u8:1", pid 36, jiffies 4294939321 (age 5580.790s)
        hex dump (first 32 bytes):
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
          00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
        backtrace:
          [<fc1bbb3e>] __netdev_alloc_skb+0x9c/0x164
          [<863dfa6e>] rtl92c_set_fw_rsvdpagepkt+0x254/0x340 [rtl8192c_common]
          [<9572be0d>] rtl92cu_set_hw_reg+0xf48/0xfa4 [rtl8192cu]
          [<116df4d8>] rtl_op_bss_info_changed+0x234/0x96c [rtlwifi]
          [<8933575f>] ieee80211_bss_info_change_notify+0xb8/0x264 [mac80211]
          [<d4061e86>] ieee80211_assoc_success+0x934/0x1798 [mac80211]
          [<e55adb56>] ieee80211_rx_mgmt_assoc_resp+0x174/0x314 [mac80211]
          [<5974629e>] ieee80211_sta_rx_queued_mgmt+0x3f4/0x7f0 [mac80211]
          [<d91091c6>] ieee80211_iface_work+0x208/0x318 [mac80211]
          [<ac5fcae4>] process_one_work+0x22c/0x564
          [<f5e6d3b6>] worker_thread+0x44/0x5d8
          [<82c7b073>] kthread+0x150/0x154
          [<b43e1b7d>] ret_from_fork+0x14/0x2c
          [<794dff30>] 0x0
      
      It is because 8192cu doesn't implement usb_cmd_send_packet(), and this
      patch just frees the skb within the function to resolve memleak problem
      by now. Since 8192cu doesn't turn on fwctrl_lps that needs to download
      command packet for firmware via the function, applying this patch doesn't
      affect driver behavior.
      Reported-by: default avatarStefan Wahren <wahrenst@gmx.net>
      Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
      5174f1e4