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CVE-2025-39732

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath11k: fix sleeping-in-atomic in ath11k_mac_op_set_bitrate_mask()

ath11k_mac_disable_peer_fixed_rate() is passed as the iterator to ieee80211_iterate_stations_atomic(). Note in this case the iterator is required to be atomic, however ath11k_mac_disable_peer_fixed_rate() does not follow it as it might sleep. Consequently below warning is seen:

BUG: sleeping function called from invalid context at wmi.c:304 Call Trace: <TASK> dump_stack_lvl __might_resched.cold ath11k_wmi_cmd_send ath11k_wmi_set_peer_param ath11k_mac_disable_peer_fixed_rate ieee80211_iterate_stations_atomic ath11k_mac_op_set_bitrate_mask.cold

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Change to ieee80211_iterate_stations_mtx() to fix this issue.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "source": "nvd@nist.gov",
      "description": [
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          "value": "NVD-CWE-noinfo"
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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix sleeping-in-atomic in ath11k_mac_op_set_bitrate_mask()\n\nath11k_mac_disable_peer_fixed_rate() is passed as the iterator to\nieee80211_iterate_stations_atomic(). Note in this case the iterator is\nrequired to be atomic, however ath11k_mac_disable_peer_fixed_rate() does\nnot follow it as it might sleep. Consequently below warning is seen:\n\nBUG: sleeping function called from invalid context at wmi.c:304\nCall Trace:\n <TASK>\n dump_stack_lvl\n __might_resched.cold\n ath11k_wmi_cmd_send\n ath11k_wmi_set_peer_param\n ath11k_mac_disable_peer_fixed_rate\n ieee80211_iterate_stations_atomic\n ath11k_mac_op_set_bitrate_mask.cold\n\nChange to ieee80211_iterate_stations_mtx() to fix this issue.\n\nTested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30"
    }
  ],
  "lastModified": "2026-07-30T06:23:43.323",
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