CVE-2025-39746
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath10k: shutdown driver when hardware is unreliable
In rare cases, ath10k may lose connection with the PCIe bus due to some unknown reasons, which could further lead to system crashes during resuming due to watchdog timeout:
At this point, all WMI commands will timeout and attempt to restart device. So set a threshold for consecutive restart failures. If the threshold is exceeded, consider the hardware is unreliable and all ath10k operations should be skipped to avoid system crash.
fail_cont_count and pending_recovery are atomic variables, and do not involve complex conditional logic. Therefore, even if recovery check and reconfig complete are executed concurrently, the recovery mechanism will not be broken.
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Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1
Detalles técnicos trazas, registros y código del informe original
ath10k_pci 0000:01:00.0: wmi command 20486 timeout, restarting hardware ath10k_pci 0000:01:00.0: already restarting ath10k_pci 0000:01:00.0: failed to stop WMI vdev 0: -11 ath10k_pci 0000:01:00.0: failed to stop vdev 0: -11 ieee80211 phy0: PM: **** DPM device timeout **** Call Trace: panic+0x125/0x315 dpm_watchdog_set+0x54/0x54 dpm_watchdog_handler+0x57/0x57 call_timer_fn+0x31/0x13c
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.16%
- Percentil entre todas las CVEs puntuadas: 4
- Fecha de la puntuación: 6/10/2026
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)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
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{
"id": "CVE-2025-39746",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
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"drivers/net/wireless/ath/ath10k/core.h",
"drivers/net/wireless/ath/ath10k/mac.c",
"drivers/net/wireless/ath/ath10k/wmi.c"
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"programFiles": [
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"drivers/net/wireless/ath/ath10k/core.h",
"drivers/net/wireless/ath/ath10k/mac.c",
"drivers/net/wireless/ath/ath10k/wmi.c"
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"published": "2025-09-11T17:15:37.890",
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"description": [
{
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"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath10k: shutdown driver when hardware is unreliable\n\nIn rare cases, ath10k may lose connection with the PCIe bus due to\nsome unknown reasons, which could further lead to system crashes during\nresuming due to watchdog timeout:\n\nath10k_pci 0000:01:00.0: wmi command 20486 timeout, restarting hardware\nath10k_pci 0000:01:00.0: already restarting\nath10k_pci 0000:01:00.0: failed to stop WMI vdev 0: -11\nath10k_pci 0000:01:00.0: failed to stop vdev 0: -11\nieee80211 phy0: PM: **** DPM device timeout ****\nCall Trace:\n panic+0x125/0x315\n dpm_watchdog_set+0x54/0x54\n dpm_watchdog_handler+0x57/0x57\n call_timer_fn+0x31/0x13c\n\nAt this point, all WMI commands will timeout and attempt to restart\ndevice. So set a threshold for consecutive restart failures. If the\nthreshold is exceeded, consider the hardware is unreliable and all\nath10k operations should be skipped to avoid system crash.\n\nfail_cont_count and pending_recovery are atomic variables, and\ndo not involve complex conditional logic. Therefore, even if recovery\ncheck and reconfig complete are executed concurrently, the recovery\nmechanism will not be broken.\n\nTested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00288-QCARMSWPZ-1"
}
],
"lastModified": "2026-06-17T09:18:23.927",
"configurations": [
{
"nodes": [
{
"negate": false,
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}