CVE-2025-39890 (GCVE-0-2025-39890)
Vulnerability from cvelistv5 – Published: 2025-09-24 11:02 – Updated: 2026-05-11 21:38
VLAI
EPSS
VEX
Title
wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event
Currently, in ath12k_service_ready_ext_event(), svc_rdy_ext.mac_phy_caps
is not freed in the failure case, causing a memory leak. The following
trace is observed in kmemleak:
unreferenced object 0xffff8b3eb5789c00 (size 1024):
comm "softirq", pid 0, jiffies 4294942577
hex dump (first 32 bytes):
00 00 00 00 01 00 00 00 00 00 00 00 7b 00 00 10 ............{...
01 00 00 00 00 00 00 00 01 00 00 00 1f 38 00 00 .............8..
backtrace (crc 44e1c357):
__kmalloc_noprof+0x30b/0x410
ath12k_wmi_mac_phy_caps_parse+0x84/0x100 [ath12k]
ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]
ath12k_wmi_svc_rdy_ext_parse+0x308/0x4c0 [ath12k]
ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]
ath12k_service_ready_ext_event.isra.0+0x44/0xd0 [ath12k]
ath12k_wmi_op_rx+0x2eb/0xd70 [ath12k]
ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k]
ath12k_ce_recv_process_cb+0x218/0x300 [ath12k]
ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k]
process_one_work+0x219/0x680
bh_worker+0x198/0x1f0
tasklet_action+0x13/0x30
handle_softirqs+0xca/0x460
__irq_exit_rcu+0xbe/0x110
irq_exit_rcu+0x9/0x30
Free svc_rdy_ext.mac_phy_caps in the error case to fix this memory leak.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 17:35 UTC
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 99dbad1b01d3b2f361a9db55c1af1212be497a3d
(git)
Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 3a392f874ac83a77ad0e53eb8aafdbeb787c9298 (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 1089f65b2de78c7837ef6b4f26146a5a5b0b9749 (git) Affected: d889913205cf7ebda905b1e62c5867ed4e39f6c2 , < 89142d34d5602c7447827beb181fa06eb08b9d5c (git) |
guessed | |
| Linux | Linux |
Affected:
6.3
Unaffected: 0 , < 6.3 (semver) Unaffected: 6.6.94 , ≤ 6.6.* (semver) Unaffected: 6.12.34 , ≤ 6.12.* (semver) Unaffected: 6.15.3 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix) |
guessed |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix memory leak in ath12k_service_ready_ext_event\n\nCurrently, in ath12k_service_ready_ext_event(), svc_rdy_ext.mac_phy_caps\nis not freed in the failure case, causing a memory leak. The following\ntrace is observed in kmemleak:\n\nunreferenced object 0xffff8b3eb5789c00 (size 1024):\n comm \"softirq\", pid 0, jiffies 4294942577\n hex dump (first 32 bytes):\n 00 00 00 00 01 00 00 00 00 00 00 00 7b 00 00 10 ............{...\n 01 00 00 00 00 00 00 00 01 00 00 00 1f 38 00 00 .............8..\n backtrace (crc 44e1c357):\n __kmalloc_noprof+0x30b/0x410\n ath12k_wmi_mac_phy_caps_parse+0x84/0x100 [ath12k]\n ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\n ath12k_wmi_svc_rdy_ext_parse+0x308/0x4c0 [ath12k]\n ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\n ath12k_service_ready_ext_event.isra.0+0x44/0xd0 [ath12k]\n ath12k_wmi_op_rx+0x2eb/0xd70 [ath12k]\n ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k]\n ath12k_ce_recv_process_cb+0x218/0x300 [ath12k]\n ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k]\n process_one_work+0x219/0x680\n bh_worker+0x198/0x1f0\n tasklet_action+0x13/0x30\n handle_softirqs+0xca/0x460\n __irq_exit_rcu+0xbe/0x110\n irq_exit_rcu+0x9/0x30\n\nFree svc_rdy_ext.mac_phy_caps in the error case to fix this memory leak.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1"
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: ath12k: Soluciona una fuga de memoria en ath12k_service_ready_ext_event\n\nActualmente, en ath12k_service_ready_ext_event(), svc_rdy_ext.mac_phy_caps no se libera en caso de fallo, causando una fuga de memoria. Se observa el siguiente rastro en kmemleak:\n\nobjeto sin referencia 0xffff8b3eb5789c00 (tama\u00f1o 1024):\n comm \u201csoftirq\u201d, pid 0, jiffies 4294942577\n volcado hexadecimal (primeros 32 bytes):\n 00 00 00 00 01 00 00 00 00 00 00 00 7b 00 00 10 ............{...\n 01 00 00 00 00 00 00 00 01 00 00 00 1f 38 00 00 .............8..\n rastreo de pila (crc 44e1c357):\n __kmalloc_noprof+0x30b/0x410\n ath12k_wmi_mac_phy_caps_parse+0x84/0x100 [ath12k]\n ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\n ath12k_wmi_svc_rdy_ext_parse+0x308/0x4c0 [ath12k]\n ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\n ath12k_service_ready_ext_event.isra.0+0x44/0xd0 [ath12k]\n ath12k_wmi_op_rx+0x2eb/0xd70 [ath12k]\n ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k]\n ath12k_ce_recv_process_cb+0x218/0x300 [ath12k]\n ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k]\n process_one_work+0x219/0x680\n bh_worker+0x198/0x1f0\n tasklet_action+0x13/0x30\n handle_softirqs+0xca/0x460\n __irq_exit_rcu+0xbe/0x110\n irq_exit_rcu+0x9/0x30\n\nLiberar svc_rdy_ext.mac_phy_caps en caso de error para solucionar esta fuga de memoria.\n\nProbado en: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1"
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-30T01:24:19+00:00",
"cve": "CVE-2025-39890",
"id": "CVE-2025-39890",
"initial_release_date": "2025-09-24T00:00:00+00:00",
"product_status:known_affected": "184",
"product_status:known_not_affected": "90",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Linux kernel ath12k Wi-Fi memory leak",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-39890.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-39890",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T17:35:11.239595Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-401",
"description": "CWE-401 Missing Release of Memory after Effective Lifetime",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-14T17:32:46.325Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ath/ath12k/wmi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "99dbad1b01d3b2f361a9db55c1af1212be497a3d",
"status": "affected",
"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
"versionType": "git"
},
{
"lessThan": "3a392f874ac83a77ad0e53eb8aafdbeb787c9298",
"status": "affected",
"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
"versionType": "git"
},
{
"lessThan": "1089f65b2de78c7837ef6b4f26146a5a5b0b9749",
"status": "affected",
"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
"versionType": "git"
},
{
"lessThan": "89142d34d5602c7447827beb181fa06eb08b9d5c",
"status": "affected",
"version": "d889913205cf7ebda905b1e62c5867ed4e39f6c2",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireless/ath/ath12k/wmi.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.3"
},
{
"lessThan": "6.3",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.94",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.34",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.94",
"versionStartIncluding": "6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.34",
"versionStartIncluding": "6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.3",
"versionStartIncluding": "6.3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.3",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix memory leak in ath12k_service_ready_ext_event\n\nCurrently, in ath12k_service_ready_ext_event(), svc_rdy_ext.mac_phy_caps\nis not freed in the failure case, causing a memory leak. The following\ntrace is observed in kmemleak:\n\nunreferenced object 0xffff8b3eb5789c00 (size 1024):\n comm \"softirq\", pid 0, jiffies 4294942577\n hex dump (first 32 bytes):\n 00 00 00 00 01 00 00 00 00 00 00 00 7b 00 00 10 ............{...\n 01 00 00 00 00 00 00 00 01 00 00 00 1f 38 00 00 .............8..\n backtrace (crc 44e1c357):\n __kmalloc_noprof+0x30b/0x410\n ath12k_wmi_mac_phy_caps_parse+0x84/0x100 [ath12k]\n ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\n ath12k_wmi_svc_rdy_ext_parse+0x308/0x4c0 [ath12k]\n ath12k_wmi_tlv_iter+0x5e/0x140 [ath12k]\n ath12k_service_ready_ext_event.isra.0+0x44/0xd0 [ath12k]\n ath12k_wmi_op_rx+0x2eb/0xd70 [ath12k]\n ath12k_htc_rx_completion_handler+0x1f4/0x330 [ath12k]\n ath12k_ce_recv_process_cb+0x218/0x300 [ath12k]\n ath12k_pci_ce_workqueue+0x1b/0x30 [ath12k]\n process_one_work+0x219/0x680\n bh_worker+0x198/0x1f0\n tasklet_action+0x13/0x30\n handle_softirqs+0xca/0x460\n __irq_exit_rcu+0xbe/0x110\n irq_exit_rcu+0x9/0x30\n\nFree svc_rdy_ext.mac_phy_caps in the error case to fix this memory leak.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1"
}
],
"providerMetadata": {
"dateUpdated": "2025-09-24T11:02:53.539Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/99dbad1b01d3b2f361a9db55c1af1212be497a3d"
},
{
"url": "https://git.kernel.org/stable/c/3a392f874ac83a77ad0e53eb8aafdbeb787c9298"
},
{
"url": "https://git.kernel.org/stable/c/1089f65b2de78c7837ef6b4f26146a5a5b0b9749"
},
{
"url": "https://git.kernel.org/stable/c/89142d34d5602c7447827beb181fa06eb08b9d5c"
}
],
"title": "wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-39890",
"datePublished": "2025-09-24T11:02:53.539Z",
"dateReserved": "2025-04-16T07:20:57.145Z",
"dateUpdated": "2026-01-14T17:35:29.384Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.