VulnerabilityPublished 4 Jul 2025Updated 21 Oct 2026

CVE-2025-38199: Linux kernel · wifi: ath12k: Fix memory leak due to multiple rx_stats allocation

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in c426497fa2055c8005196922e7d29c41d7e0948a : update Linux kernel when convenient.

Data as of 26 Oct 2026, 14:18 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in c426497fa2055c8005196922e7d29c41d7e0948a, 232f962ae5fca98912a719e64b4964a5aec7c99b, 2c4b122c75581331177686f68a08981371147d37

Exploitation evidence

Disclosed: evidence found.
CVE published 4 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to c426497fa2055c8005196922e7d29c41d7e0948a, 232f962ae5fca98912a719e64b4964a5aec7c99b or 2c4b122c75581331177686f68a08981371147d37.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < c426497fa2055c8005196922e7d29c41d7e0948a	Fixed in c426497fa2055c8005196922e7d29c41d7e0948a
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 232f962ae5fca98912a719e64b4964a5aec7c99b	Fixed in 232f962ae5fca98912a719e64b4964a5aec7c99b
LinuxLinux	Affected ≥ d889913205cf7ebda905b1e62c5867ed4e39f6c2, < 2c4b122c75581331177686f68a08981371147d37	Fixed in 2c4b122c75581331177686f68a08981371147d37
LinuxLinux	Affected =6.3	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix memory leak due to multiple rx_stats allocation rx_stats for each arsta is allocated when adding a station. arsta->rx_stats will be freed when a station is removed. Redundant allocations are occurring when the same station is added multiple times. This causes ath12k_mac_station_add() to be called multiple times, and rx_stats is allocated each time. As a result there is memory leaks. Prevent multiple allocations of rx_stats when ath12k_mac_station_add() is called repeatedly by checking if rx_stats is already allocated before allocating again. Allocate arsta->rx_stats if arsta->rx_stats is NULL respectively. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

References

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