1. 16 Jan, 2023 7 commits
    • Ching-Te Ku's avatar
      wifi: rtw89: coex: Add v5 firmware control report · 0c06fd47
      Ching-Te Ku authored
      Comparing v5 control report to v4 version, v5 reduce some of variable's
      size to reduce firmware code size. And change the grant signal report
      format.
      Signed-off-by: default avatarChing-Te Ku <ku920601@realtek.com>
      Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20230103140238.15601-6-pkshih@realtek.com
      0c06fd47
    • Ching-Te Ku's avatar
      wifi: rtw89: coex: Change firmware control report to version separate · b02e3f5c
      Ching-Te Ku authored
      The rtw89 driver may support more than 1 version of Wi-Fi firmware for
      certain chips. In order to support all the firmware, change to select logic
      by firmware feature version code. Type control version 4 will monitor
      Bluetooth PTA hardware counters at firmware and C2H to driver, but
      version 1 will not do this.
      Signed-off-by: default avatarChing-Te Ku <ku920601@realtek.com>
      Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20230103140238.15601-5-pkshih@realtek.com
      b02e3f5c
    • Ching-Te Ku's avatar
      wifi: rtw89: coex: Add v4 version firmware cycle report · 202c3b5c
      Ching-Te Ku authored
      To support v4 version firmware cycle report, apply the related
      structure and functions. v4 cycle report add a group of status
      to show how the free-run/TDMA training goes to. It is a firmware
      mechanism that can auto adjust coexistence mode between TDMA and
      free run mechanism at 3 antenna solution.
      Signed-off-by: default avatarChing-Te Ku <ku920601@realtek.com>
      Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20230103140238.15601-4-pkshih@realtek.com
      202c3b5c
    • Ching-Te Ku's avatar
      wifi: rtw89: coex: Rename BTC firmware cycle report by feature version · fab895b3
      Ching-Te Ku authored
      Because there are new report format in the upcoming patches, to make the
      logic more readable, rename the related structure by their version number.
      And to support the several version at the same time, add union definition
      to include all the versions.
      Signed-off-by: default avatarChing-Te Ku <ku920601@realtek.com>
      Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20230103140238.15601-3-pkshih@realtek.com
      fab895b3
    • Ching-Te Ku's avatar
      wifi: rtw89: coex: Remove le32 to CPU translator at firmware cycle report · f643d086
      Ching-Te Ku authored
      There are at least 2 version of cycle report format. If the code keep
      translating the report to local variable, the numbers of variable in
      check btc report function will out of maximum variable numbers. And
      most of these variable are using only one time, it is not necessary
      to store at memory.
      Signed-off-by: default avatarChing-Te Ku <ku920601@realtek.com>
      Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20230103140238.15601-2-pkshih@realtek.com
      f643d086
    • Masanari Iida's avatar
      wifi: rtw89: Fix a typo in debug message · e20c9f65
      Masanari Iida authored
      This patch fixes a spelling typo in debug message.
      Signed-off-by: default avatarMasanari Iida <standby24x7@gmail.com>
      Acked-by: default avatarPing-Ke Shih <pkshih@realtek.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221223102058.162179-1-standby24x7@gmail.com
      e20c9f65
    • Jisoo Jang's avatar
      wifi: brcmfmac: ensure CLM version is null-terminated to prevent stack-out-of-bounds · 660145d7
      Jisoo Jang authored
      Fix a stack-out-of-bounds read in brcmfmac that occurs
      when 'buf' that is not null-terminated is passed as an argument of
      strreplace() in brcmf_c_preinit_dcmds(). This buffer is filled with
      a CLM version string by memcpy() in brcmf_fil_iovar_data_get().
      Ensure buf is null-terminated.
      
      Found by a modified version of syzkaller.
      
      [   33.004414][ T1896] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
      [   33.013486][ T1896] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM43236/3 wl0: Nov 30 2011 17:33:42 version 5.90.188.22
      [   33.021554][ T1896] ==================================================================
      [   33.022379][ T1896] BUG: KASAN: stack-out-of-bounds in strreplace+0xf2/0x110
      [   33.023122][ T1896] Read of size 1 at addr ffffc90001d6efc8 by task kworker/0:2/1896
      [   33.023852][ T1896]
      [   33.024096][ T1896] CPU: 0 PID: 1896 Comm: kworker/0:2 Tainted: G           O      5.14.0+ #132
      [   33.024927][ T1896] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
      [   33.026065][ T1896] Workqueue: usb_hub_wq hub_event
      [   33.026581][ T1896] Call Trace:
      [   33.026896][ T1896]  dump_stack_lvl+0x57/0x7d
      [   33.027372][ T1896]  print_address_description.constprop.0.cold+0xf/0x334
      [   33.028037][ T1896]  ? strreplace+0xf2/0x110
      [   33.028403][ T1896]  ? strreplace+0xf2/0x110
      [   33.028807][ T1896]  kasan_report.cold+0x83/0xdf
      [   33.029283][ T1896]  ? strreplace+0xf2/0x110
      [   33.029666][ T1896]  strreplace+0xf2/0x110
      [   33.029966][ T1896]  brcmf_c_preinit_dcmds+0xab1/0xc40
      [   33.030351][ T1896]  ? brcmf_c_set_joinpref_default+0x100/0x100
      [   33.030787][ T1896]  ? rcu_read_lock_sched_held+0xa1/0xd0
      [   33.031223][ T1896]  ? rcu_read_lock_bh_held+0xb0/0xb0
      [   33.031661][ T1896]  ? lock_acquire+0x19d/0x4e0
      [   33.032091][ T1896]  ? find_held_lock+0x2d/0x110
      [   33.032605][ T1896]  ? brcmf_usb_deq+0x1a7/0x260
      [   33.033087][ T1896]  ? brcmf_usb_rx_fill_all+0x5a/0xf0
      [   33.033582][ T1896]  brcmf_attach+0x246/0xd40
      [   33.034022][ T1896]  ? wiphy_new_nm+0x1476/0x1d50
      [   33.034383][ T1896]  ? kmemdup+0x30/0x40
      [   33.034722][ T1896]  brcmf_usb_probe+0x12de/0x1690
      [   33.035223][ T1896]  ? brcmf_usbdev_qinit.constprop.0+0x470/0x470
      [   33.035833][ T1896]  usb_probe_interface+0x25f/0x710
      [   33.036315][ T1896]  really_probe+0x1be/0xa90
      [   33.036656][ T1896]  __driver_probe_device+0x2ab/0x460
      [   33.037026][ T1896]  ? usb_match_id.part.0+0x88/0xc0
      [   33.037383][ T1896]  driver_probe_device+0x49/0x120
      [   33.037790][ T1896]  __device_attach_driver+0x18a/0x250
      [   33.038300][ T1896]  ? driver_allows_async_probing+0x120/0x120
      [   33.038986][ T1896]  bus_for_each_drv+0x123/0x1a0
      [   33.039906][ T1896]  ? bus_rescan_devices+0x20/0x20
      [   33.041412][ T1896]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   33.041861][ T1896]  ? trace_hardirqs_on+0x1c/0x120
      [   33.042330][ T1896]  __device_attach+0x207/0x330
      [   33.042664][ T1896]  ? device_bind_driver+0xb0/0xb0
      [   33.043026][ T1896]  ? kobject_uevent_env+0x230/0x12c0
      [   33.043515][ T1896]  bus_probe_device+0x1a2/0x260
      [   33.043914][ T1896]  device_add+0xa61/0x1ce0
      [   33.044227][ T1896]  ? __mutex_unlock_slowpath+0xe7/0x660
      [   33.044891][ T1896]  ? __fw_devlink_link_to_suppliers+0x550/0x550
      [   33.045531][ T1896]  usb_set_configuration+0x984/0x1770
      [   33.046051][ T1896]  ? kernfs_create_link+0x175/0x230
      [   33.046548][ T1896]  usb_generic_driver_probe+0x69/0x90
      [   33.046931][ T1896]  usb_probe_device+0x9c/0x220
      [   33.047434][ T1896]  really_probe+0x1be/0xa90
      [   33.047760][ T1896]  __driver_probe_device+0x2ab/0x460
      [   33.048134][ T1896]  driver_probe_device+0x49/0x120
      [   33.048516][ T1896]  __device_attach_driver+0x18a/0x250
      [   33.048910][ T1896]  ? driver_allows_async_probing+0x120/0x120
      [   33.049437][ T1896]  bus_for_each_drv+0x123/0x1a0
      [   33.049814][ T1896]  ? bus_rescan_devices+0x20/0x20
      [   33.050164][ T1896]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   33.050579][ T1896]  ? trace_hardirqs_on+0x1c/0x120
      [   33.050936][ T1896]  __device_attach+0x207/0x330
      [   33.051399][ T1896]  ? device_bind_driver+0xb0/0xb0
      [   33.051888][ T1896]  ? kobject_uevent_env+0x230/0x12c0
      [   33.052314][ T1896]  bus_probe_device+0x1a2/0x260
      [   33.052688][ T1896]  device_add+0xa61/0x1ce0
      [   33.053121][ T1896]  ? __fw_devlink_link_to_suppliers+0x550/0x550
      [   33.053568][ T1896]  usb_new_device.cold+0x463/0xf66
      [   33.053953][ T1896]  ? hub_disconnect+0x400/0x400
      [   33.054313][ T1896]  ? rwlock_bug.part.0+0x90/0x90
      [   33.054661][ T1896]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   33.055094][ T1896]  hub_event+0x10d5/0x3330
      [   33.055530][ T1896]  ? hub_port_debounce+0x280/0x280
      [   33.055934][ T1896]  ? __lock_acquire+0x1671/0x5790
      [   33.056387][ T1896]  ? wq_calc_node_cpumask+0x170/0x2a0
      [   33.056924][ T1896]  ? lock_release+0x640/0x640
      [   33.057383][ T1896]  ? rcu_read_lock_sched_held+0xa1/0xd0
      [   33.057916][ T1896]  ? rcu_read_lock_bh_held+0xb0/0xb0
      [   33.058402][ T1896]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   33.059019][ T1896]  process_one_work+0x873/0x13e0
      [   33.059488][ T1896]  ? lock_release+0x640/0x640
      [   33.059932][ T1896]  ? pwq_dec_nr_in_flight+0x320/0x320
      [   33.060446][ T1896]  ? rwlock_bug.part.0+0x90/0x90
      [   33.060898][ T1896]  worker_thread+0x8b/0xd10
      [   33.061348][ T1896]  ? __kthread_parkme+0xd9/0x1d0
      [   33.061810][ T1896]  ? process_one_work+0x13e0/0x13e0
      [   33.062288][ T1896]  kthread+0x379/0x450
      [   33.062660][ T1896]  ? _raw_spin_unlock_irq+0x24/0x30
      [   33.063148][ T1896]  ? set_kthread_struct+0x100/0x100
      [   33.063606][ T1896]  ret_from_fork+0x1f/0x30
      [   33.064070][ T1896]
      [   33.064313][ T1896]
      [   33.064545][ T1896] addr ffffc90001d6efc8 is located in stack of task kworker/0:2/1896 at offset 512 in frame:
      [   33.065478][ T1896]  brcmf_c_preinit_dcmds+0x0/0xc40
      [   33.065973][ T1896]
      [   33.066191][ T1896] this frame has 4 objects:
      [   33.066614][ T1896]  [48, 56) 'ptr'
      [   33.066618][ T1896]  [80, 148) 'revinfo'
      [   33.066957][ T1896]  [192, 210) 'eventmask'
      [   33.067338][ T1896]  [256, 512) 'buf'
      [   33.067742][ T1896]
      [   33.068304][ T1896] Memory state around the buggy address:
      [   33.068838][ T1896]  ffffc90001d6ee80: f2 00 00 02 f2 f2 f2 f2 f2 00 00 00 00 00 00 00
      [   33.069545][ T1896]  ffffc90001d6ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      [   33.070626][ T1896] >ffffc90001d6ef80: 00 00 00 00 00 00 00 00 00 f3 f3 f3 f3 f3 f3 f3
      [   33.072052][ T1896]                                               ^
      [   33.073043][ T1896]  ffffc90001d6f000: f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      [   33.074230][ T1896]  ffffc90001d6f080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      [   33.074914][ T1896] ==================================================================
      [   33.075713][ T1896] Disabling lock debugging due to kernel taint
      
      Reviewed-by: Arend van Spriel<arend.vanspriel@broadcom.com>
      Signed-off-by: default avatarJisoo Jang <jisoo.jang@yonsei.ac.kr>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221230075139.56591-1-jisoo.jang@yonsei.ac.kr
      660145d7
  2. 12 Jan, 2023 4 commits
  3. 22 Dec, 2022 12 commits
    • Yang Yingliang's avatar
      wifi: wl3501_cs: don't call kfree_skb() under spin_lock_irqsave() · 44bacbdf
      Yang Yingliang authored
      It is not allowed to call kfree_skb() from hardware interrupt
      context or with interrupts being disabled. So replace kfree_skb()
      with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
      tested only.
      
      Fixes: 1da177e4 ("Linux-2.6.12-rc2")
      Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221207150453.114742-1-yangyingliang@huawei.com
      44bacbdf
    • Yang Yingliang's avatar
      wifi: libertas: cmdresp: don't call kfree_skb() under spin_lock_irqsave() · 708a49a6
      Yang Yingliang authored
      It is not allowed to call kfree_skb() from hardware interrupt
      context or with interrupts being disabled. So replace kfree_skb()
      with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
      tested only.
      
      Fixes: f52b041a ("libertas: Add spinlock to avoid race condition")
      Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221207150008.111743-5-yangyingliang@huawei.com
      708a49a6
    • Yang Yingliang's avatar
      wifi: libertas: main: don't call kfree_skb() under spin_lock_irqsave() · f393df15
      Yang Yingliang authored
      It is not allowed to call kfree_skb() from hardware interrupt
      context or with interrupts being disabled. So replace kfree_skb()
      with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
      tested only.
      
      Fixes: d2e7b342 ("libertas: disable functionality when interface is down")
      Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221207150008.111743-4-yangyingliang@huawei.com
      f393df15
    • Yang Yingliang's avatar
      wifi: libertas: if_usb: don't call kfree_skb() under spin_lock_irqsave() · 3968e81b
      Yang Yingliang authored
      It is not allowed to call kfree_skb() from hardware interrupt
      context or with interrupts being disabled. So replace kfree_skb()
      with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
      tested only.
      
      Fixes: a3128fee ("libertas: use irqsave() in USB's complete callback")
      Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221207150008.111743-3-yangyingliang@huawei.com
      3968e81b
    • Yang Yingliang's avatar
      wifi: libertas_tf: don't call kfree_skb() under spin_lock_irqsave() · 9388ce97
      Yang Yingliang authored
      It is not allowed to call kfree_skb() from hardware interrupt
      context or with interrupts being disabled. So replace kfree_skb()
      with dev_kfree_skb_irq() under spin_lock_irqsave(). Compile
      tested only.
      
      Fixes: fc75122f ("libertas_tf: use irqsave() in USB's complete callback")
      Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221207150008.111743-2-yangyingliang@huawei.com
      9388ce97
    • Zhengchao Shao's avatar
      wifi: brcmfmac: unmap dma buffer in brcmf_msgbuf_alloc_pktid() · b9f42003
      Zhengchao Shao authored
      After the DMA buffer is mapped to a physical address, address is stored
      in pktids in brcmf_msgbuf_alloc_pktid(). Then, pktids is parsed in
      brcmf_msgbuf_get_pktid()/brcmf_msgbuf_release_array() to obtain physaddr
      and later unmap the DMA buffer. But when count is always equal to
      pktids->array_size, physaddr isn't stored in pktids and the DMA buffer
      will not be unmapped anyway.
      
      Fixes: 9a1bb602 ("brcmfmac: Adding msgbuf protocol.")
      Signed-off-by: default avatarZhengchao Shao <shaozhengchao@huawei.com>
      Reviewed-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221207013114.1748936-1-shaozhengchao@huawei.com
      b9f42003
    • Zhang Changzhong's avatar
      wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() · 212fde3f
      Zhang Changzhong authored
      The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb
      in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it.
      Compile tested only.
      
      Fixes: 270a6c1f ("brcmfmac: rework headroom check in .start_xmit()")
      Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
      Reviewed-by: default avatarArend van Spriel <arend.vanspriel@broadcom.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/1668684782-47422-1-git-send-email-zhangchangzhong@huawei.com
      212fde3f
    • Jisoo Jang's avatar
      wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() · 0a06cadc
      Jisoo Jang authored
      This patch fixes a stack-out-of-bounds read in brcmfmac that occurs
      when 'buf' that is not null-terminated is passed as an argument of
      strsep() in brcmf_c_preinit_dcmds(). This buffer is filled with a firmware
      version string by memcpy() in brcmf_fil_iovar_data_get().
      The patch ensures buf is null-terminated.
      
      Found by a modified version of syzkaller.
      
      [   47.569679][ T1897] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43236b for chip BCM43236/3
      [   47.582839][ T1897] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available (err=-2), device may have limited channels available
      [   47.601565][ T1897] ==================================================================
      [   47.602574][ T1897] BUG: KASAN: stack-out-of-bounds in strsep+0x1b2/0x1f0
      [   47.603447][ T1897] Read of size 1 at addr ffffc90001f6f000 by task kworker/0:2/1897
      [   47.604336][ T1897]
      [   47.604621][ T1897] CPU: 0 PID: 1897 Comm: kworker/0:2 Tainted: G           O      5.14.0+ #131
      [   47.605617][ T1897] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
      [   47.606907][ T1897] Workqueue: usb_hub_wq hub_event
      [   47.607453][ T1897] Call Trace:
      [   47.607801][ T1897]  dump_stack_lvl+0x8e/0xd1
      [   47.608295][ T1897]  print_address_description.constprop.0.cold+0xf/0x334
      [   47.609009][ T1897]  ? strsep+0x1b2/0x1f0
      [   47.609434][ T1897]  ? strsep+0x1b2/0x1f0
      [   47.609863][ T1897]  kasan_report.cold+0x83/0xdf
      [   47.610366][ T1897]  ? strsep+0x1b2/0x1f0
      [   47.610882][ T1897]  strsep+0x1b2/0x1f0
      [   47.611300][ T1897]  ? brcmf_fil_iovar_data_get+0x3a/0xf0
      [   47.611883][ T1897]  brcmf_c_preinit_dcmds+0x995/0xc40
      [   47.612434][ T1897]  ? brcmf_c_set_joinpref_default+0x100/0x100
      [   47.613078][ T1897]  ? rcu_read_lock_sched_held+0xa1/0xd0
      [   47.613662][ T1897]  ? rcu_read_lock_bh_held+0xb0/0xb0
      [   47.614208][ T1897]  ? lock_acquire+0x19d/0x4e0
      [   47.614704][ T1897]  ? find_held_lock+0x2d/0x110
      [   47.615236][ T1897]  ? brcmf_usb_deq+0x1a7/0x260
      [   47.615741][ T1897]  ? brcmf_usb_rx_fill_all+0x5a/0xf0
      [   47.616288][ T1897]  brcmf_attach+0x246/0xd40
      [   47.616758][ T1897]  ? wiphy_new_nm+0x1703/0x1dd0
      [   47.617280][ T1897]  ? kmemdup+0x43/0x50
      [   47.617720][ T1897]  brcmf_usb_probe+0x12de/0x1690
      [   47.618244][ T1897]  ? brcmf_usbdev_qinit.constprop.0+0x470/0x470
      [   47.618901][ T1897]  usb_probe_interface+0x2aa/0x760
      [   47.619429][ T1897]  ? usb_probe_device+0x250/0x250
      [   47.619950][ T1897]  really_probe+0x205/0xb70
      [   47.620435][ T1897]  ? driver_allows_async_probing+0x130/0x130
      [   47.621048][ T1897]  __driver_probe_device+0x311/0x4b0
      [   47.621595][ T1897]  ? driver_allows_async_probing+0x130/0x130
      [   47.622209][ T1897]  driver_probe_device+0x4e/0x150
      [   47.622739][ T1897]  __device_attach_driver+0x1cc/0x2a0
      [   47.623287][ T1897]  bus_for_each_drv+0x156/0x1d0
      [   47.623796][ T1897]  ? bus_rescan_devices+0x30/0x30
      [   47.624309][ T1897]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   47.624907][ T1897]  ? trace_hardirqs_on+0x46/0x160
      [   47.625437][ T1897]  __device_attach+0x23f/0x3a0
      [   47.625924][ T1897]  ? device_bind_driver+0xd0/0xd0
      [   47.626433][ T1897]  ? kobject_uevent_env+0x287/0x14b0
      [   47.627057][ T1897]  bus_probe_device+0x1da/0x290
      [   47.627557][ T1897]  device_add+0xb7b/0x1eb0
      [   47.628027][ T1897]  ? wait_for_completion+0x290/0x290
      [   47.628593][ T1897]  ? __fw_devlink_link_to_suppliers+0x5a0/0x5a0
      [   47.629249][ T1897]  usb_set_configuration+0xf59/0x16f0
      [   47.629829][ T1897]  usb_generic_driver_probe+0x82/0xa0
      [   47.630385][ T1897]  usb_probe_device+0xbb/0x250
      [   47.630927][ T1897]  ? usb_suspend+0x590/0x590
      [   47.631397][ T1897]  really_probe+0x205/0xb70
      [   47.631855][ T1897]  ? driver_allows_async_probing+0x130/0x130
      [   47.632469][ T1897]  __driver_probe_device+0x311/0x4b0
      [   47.633002][ T1897]  ? usb_generic_driver_match+0x75/0x90
      [   47.633573][ T1897]  ? driver_allows_async_probing+0x130/0x130
      [   47.634170][ T1897]  driver_probe_device+0x4e/0x150
      [   47.634703][ T1897]  __device_attach_driver+0x1cc/0x2a0
      [   47.635248][ T1897]  bus_for_each_drv+0x156/0x1d0
      [   47.635748][ T1897]  ? bus_rescan_devices+0x30/0x30
      [   47.636271][ T1897]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   47.636881][ T1897]  ? trace_hardirqs_on+0x46/0x160
      [   47.637396][ T1897]  __device_attach+0x23f/0x3a0
      [   47.637904][ T1897]  ? device_bind_driver+0xd0/0xd0
      [   47.638426][ T1897]  ? kobject_uevent_env+0x287/0x14b0
      [   47.638985][ T1897]  bus_probe_device+0x1da/0x290
      [   47.639512][ T1897]  device_add+0xb7b/0x1eb0
      [   47.639977][ T1897]  ? __fw_devlink_link_to_suppliers+0x5a0/0x5a0
      [   47.640612][ T1897]  ? kfree+0x14a/0x6b0
      [   47.641055][ T1897]  ? __usb_get_extra_descriptor+0x116/0x160
      [   47.641679][ T1897]  usb_new_device.cold+0x49c/0x1029
      [   47.642245][ T1897]  ? hub_disconnect+0x450/0x450
      [   47.642756][ T1897]  ? rwlock_bug.part.0+0x90/0x90
      [   47.643273][ T1897]  ? _raw_spin_unlock_irq+0x24/0x30
      [   47.643822][ T1897]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   47.644445][ T1897]  hub_event+0x1c98/0x3950
      [   47.644939][ T1897]  ? hub_port_debounce+0x2e0/0x2e0
      [   47.645467][ T1897]  ? check_irq_usage+0x861/0xf20
      [   47.645975][ T1897]  ? drain_workqueue+0x280/0x360
      [   47.646506][ T1897]  ? lock_release+0x640/0x640
      [   47.646994][ T1897]  ? rcu_read_lock_sched_held+0xa1/0xd0
      [   47.647572][ T1897]  ? rcu_read_lock_bh_held+0xb0/0xb0
      [   47.648111][ T1897]  ? lockdep_hardirqs_on_prepare+0x273/0x3e0
      [   47.648735][ T1897]  process_one_work+0x92b/0x1460
      [   47.649262][ T1897]  ? pwq_dec_nr_in_flight+0x330/0x330
      [   47.649816][ T1897]  ? rwlock_bug.part.0+0x90/0x90
      [   47.650336][ T1897]  worker_thread+0x95/0xe00
      [   47.650830][ T1897]  ? __kthread_parkme+0x115/0x1e0
      [   47.651361][ T1897]  ? process_one_work+0x1460/0x1460
      [   47.651904][ T1897]  kthread+0x3a1/0x480
      [   47.652329][ T1897]  ? set_kthread_struct+0x120/0x120
      [   47.652878][ T1897]  ret_from_fork+0x1f/0x30
      [   47.653370][ T1897]
      [   47.653608][ T1897]
      [   47.653848][ T1897] addr ffffc90001f6f000 is located in stack of task kworker/0:2/1897 at offset 512 in frame:
      [   47.654891][ T1897]  brcmf_c_preinit_dcmds+0x0/0xc40
      [   47.655442][ T1897]
      [   47.655690][ T1897] this frame has 4 objects:
      [   47.656151][ T1897]  [48, 56) 'ptr'
      [   47.656159][ T1897]  [80, 148) 'revinfo'
      [   47.656534][ T1897]  [192, 210) 'eventmask'
      [   47.656953][ T1897]  [256, 512) 'buf'
      [   47.657410][ T1897]
      [   47.658035][ T1897] Memory state around the buggy address:
      [   47.658743][ T1897]  ffffc90001f6ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      [   47.659577][ T1897]  ffffc90001f6ef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      [   47.660394][ T1897] >ffffc90001f6f000: f3 f3 f3 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00
      [   47.661199][ T1897]                    ^
      [   47.661625][ T1897]  ffffc90001f6f080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      [   47.662455][ T1897]  ffffc90001f6f100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1
      [   47.663318][ T1897] ==================================================================
      [   47.664147][ T1897] Disabling lock debugging due to kernel taint
      Reported-by: default avatarDokyung Song <dokyungs@yonsei.ac.kr>
      Reported-by: default avatarJisoo Jang <jisoo.jang@yonsei.ac.kr>
      Reported-by: default avatarMinsuk Kang <linuxlovemin@yonsei.ac.kr>
      Signed-off-by: default avatarJisoo Jang <jisoo.jang@yonsei.ac.kr>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221115043458.37562-1-jisoo.jang@yonsei.ac.kr
      0a06cadc
    • Wang Yufen's avatar
      wifi: wilc1000: add missing unregister_netdev() in wilc_netdev_ifc_init() · 2b88974e
      Wang Yufen authored
      Fault injection test reports this issue:
      
      kernel BUG at net/core/dev.c:10731!
      invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
      Call Trace:
        <TASK>
        wilc_netdev_ifc_init+0x19f/0x220 [wilc1000 884bf126e9e98af6a708f266a8dffd53f99e4bf5]
        wilc_cfg80211_init+0x30c/0x380 [wilc1000 884bf126e9e98af6a708f266a8dffd53f99e4bf5]
        wilc_bus_probe+0xad/0x2b0 [wilc1000_spi 1520a7539b6589cc6cde2ae826a523a33f8bacff]
        spi_probe+0xe4/0x140
        really_probe+0x17e/0x3f0
        __driver_probe_device+0xe3/0x170
        driver_probe_device+0x49/0x120
      
      The root case here is alloc_ordered_workqueue() fails, but
      cfg80211_unregister_netdevice() or unregister_netdev() not be called in
      error handling path. To fix add unregister_netdev goto lable to add the
      unregister operation in error handling path.
      
      Fixes: 09ed8bfc ("wilc1000: Rename workqueue from "WILC_wq" to "NETDEV-wq"")
      Signed-off-by: default avatarWang Yufen <wangyufen@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/1669289902-23639-1-git-send-email-wangyufen@huawei.com
      2b88974e
    • Zhang Changzhong's avatar
      wifi: wilc1000: fix potential memory leak in wilc_mac_xmit() · deb962ec
      Zhang Changzhong authored
      The wilc_mac_xmit() returns NETDEV_TX_OK without freeing skb, add
      dev_kfree_skb() to fix it. Compile tested only.
      
      Fixes: c5c77ba1 ("staging: wilc1000: Add SDIO/SPI 802.11 driver")
      Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/1668684964-48622-1-git-send-email-zhangchangzhong@huawei.com
      deb962ec
    • Zhengchao Shao's avatar
      wifi: ipw2200: fix memory leak in ipw_wdev_init() · 9fe21dc6
      Zhengchao Shao authored
      In the error path of ipw_wdev_init(), exception value is returned, and
      the memory applied for in the function is not released. Also the memory
      is not released in ipw_pci_probe(). As a result, memory leakage occurs.
      So memory release needs to be added to the error path of ipw_wdev_init().
      
      Fixes: a3caa99e ("libipw: initiate cfg80211 API conversion (v2)")
      Signed-off-by: default avatarZhengchao Shao <shaozhengchao@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221209012422.182669-1-shaozhengchao@huawei.com
      9fe21dc6
    • Yang Yingliang's avatar
      wifi: ipw2x00: don't call dev_kfree_skb() under spin_lock_irqsave() · 45fc6d74
      Yang Yingliang authored
      It is not allowed to call kfree_skb() or consume_skb() from hardware
      interrupt context or with hardware interrupts being disabled.
      
      It should use dev_kfree_skb_irq() or dev_consume_skb_irq() instead.
      The difference between them is free reason, dev_kfree_skb_irq() means
      the SKB is dropped in error and dev_consume_skb_irq() means the SKB
      is consumed in normal.
      
      In this case, dev_kfree_skb() is called to free and drop the SKB when
      it's reset, so replace it with dev_kfree_skb_irq(). Compile tested
      only.
      
      Fixes: 43f66a6c ("Add ipw2200 wireless driver.")
      Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
      Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
      Link: https://lore.kernel.org/r/20221208143826.2385218-1-yangyingliang@huawei.com
      45fc6d74
  4. 21 Dec, 2022 17 commits