CVE-2025-39732

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

State: Published
Severity: 7.8 High
Published: Sep 7, 2025
Updated: Oct 21, 2026
Reserved: Apr 16, 2025

Description

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

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

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d5c65159f2895379e11ca13f62feabe93278985d to before 1f45a710c82b29d4c501b1cb472dff68d59ecc8cAffected d5c65159f2895379e11ca13f62feabe93278985d to before 9c0e3144924c7db701575a73af341d33184afeafAffected d5c65159f2895379e11ca13f62feabe93278985d to before 7d4d0db0dc9424de2bdc0b45e919e4892603356fAffected d5c65159f2895379e11ca13f62feabe93278985d to before 6bdef22d540258ca06f079f7b6ae100669a19b47Affected d5c65159f2895379e11ca13f62feabe93278985d to before 65c12b104cb942d588a1a093acc4537fb3d3b129Affected
LinuxLinux	5.6Affected before 5.6Not affected 6.6.160 through 6.6.Not affected 6.12.42 through 6.12.Not affected 6.15.10 through 6.15.Not affected 6.16.1 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

d5c65159f2895379e11ca13f62feabe93278985d to before 1f45a710c82b29d4c501b1cb472dff68d59ecc8cAffected
d5c65159f2895379e11ca13f62feabe93278985d to before 9c0e3144924c7db701575a73af341d33184afeafAffected
d5c65159f2895379e11ca13f62feabe93278985d to before 7d4d0db0dc9424de2bdc0b45e919e4892603356fAffected
d5c65159f2895379e11ca13f62feabe93278985d to before 6bdef22d540258ca06f079f7b6ae100669a19b47Affected
d5c65159f2895379e11ca13f62feabe93278985d to before 65c12b104cb942d588a1a093acc4537fb3d3b129Affected

LinuxLinux

5.6Affected
before 5.6Not affected
6.6.160 through 6.6.*Not affected
6.12.42 through 6.12.*Not affected
6.15.10 through 6.15.*Not affected
6.16.1 through 6.16.*Not affected
6.17 and laterNot affected

References

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