CVE-2025-38604
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtl818x: Kill URBs before clearing tx status queue
In rtl8187_stop() move the call of usb_kill_anchored_urbs() before clearing b_tx_status.queue. This change prevents callbacks from using already freed skb due to anchor was not killed before freeing such skb.
Tested on RTL8187BvE device.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Detalles técnicos trazas, registros y código del informe original
BUG: kernel NULL pointer dereference, address: 0000000000000080 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Not tainted 6.15.0 #8 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:ieee80211_tx_status_irqsafe+0x21/0xc0 [mac80211] Call Trace: <IRQ> rtl8187_tx_cb+0x116/0x150 [rtl8187] __usb_hcd_giveback_urb+0x9d/0x120 usb_giveback_urb_bh+0xbb/0x140 process_one_work+0x19b/0x3c0 bh_worker+0x1a7/0x210 tasklet_action+0x10/0x30 handle_softirqs+0xf0/0x340 __irq_exit_rcu+0xcd/0xf0 common_interrupt+0x85/0xa0 </IRQ>
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: 0.17%
- Percentil entre todas las CVEs puntuadas: 6
- 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 (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/14ca6952691fa8cc91e7644512e6ff24a595283f
- https://git.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cdd
- https://git.kernel.org/stable/c/7858a95566f4ebf59524666683d2dcdba3fca968
- https://git.kernel.org/stable/c/789415771422f4fb9f444044f86ecfaec55df1bd
- https://git.kernel.org/stable/c/81cfe34d0630de4e23ae804dcc08fb6f861dc37d
- https://git.kernel.org/stable/c/8c767727f331fb9455b0f81daad832b5925688cb
- https://git.kernel.org/stable/c/c51a45ad9070a6d296174fcbe5c466352836c12b
- https://git.kernel.org/stable/c/c73c773b09e313278f9b960303a2809b8440bac6
- https://git.kernel.org/stable/c/e64732ebff9e24258e7326f07adbe2f2b990daf8
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-38604",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Secondary",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.8,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.8
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"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",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "e64732ebff9e24258e7326f07adbe2f2b990daf8",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "789415771422f4fb9f444044f86ecfaec55df1bd",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "c73c773b09e313278f9b960303a2809b8440bac6",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "8c767727f331fb9455b0f81daad832b5925688cb",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "14ca6952691fa8cc91e7644512e6ff24a595283f",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "7858a95566f4ebf59524666683d2dcdba3fca968",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "c51a45ad9070a6d296174fcbe5c466352836c12b",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "81cfe34d0630de4e23ae804dcc08fb6f861dc37d",
"versionType": "git"
},
{
"status": "affected",
"version": "c1db52b9d27ee6e15a7136e67e4a21dc916cd07f",
"lessThan": "16d8fd74dbfca0ea58645cd2fca13be10cae3cdd",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.29"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.29",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.297",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.241",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.190",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.148",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.102",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.42",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.15.10",
"versionType": "semver",
"lessThanOrEqual": "6.15.*"
},
{
"status": "unaffected",
"version": "6.16.1",
"versionType": "semver",
"lessThanOrEqual": "6.16.*"
},
{
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-08-19T17:15:38.647",
"references": [
{
"url": "https://git.kernel.org/stable/c/14ca6952691fa8cc91e7644512e6ff24a595283f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/16d8fd74dbfca0ea58645cd2fca13be10cae3cdd",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/7858a95566f4ebf59524666683d2dcdba3fca968",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/789415771422f4fb9f444044f86ecfaec55df1bd",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/81cfe34d0630de4e23ae804dcc08fb6f861dc37d",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/8c767727f331fb9455b0f81daad832b5925688cb",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c51a45ad9070a6d296174fcbe5c466352836c12b",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c73c773b09e313278f9b960303a2809b8440bac6",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e64732ebff9e24258e7326f07adbe2f2b990daf8",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-476"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl818x: Kill URBs before clearing tx status queue\n\nIn rtl8187_stop() move the call of usb_kill_anchored_urbs() before clearing\nb_tx_status.queue. This change prevents callbacks from using already freed\nskb due to anchor was not killed before freeing such skb.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000080\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 0 P4D 0\n Oops: Oops: 0000 [#1] SMP NOPTI\n CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Not tainted 6.15.0 #8 PREEMPT(voluntary)\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015\n RIP: 0010:ieee80211_tx_status_irqsafe+0x21/0xc0 [mac80211]\n Call Trace:\n <IRQ>\n rtl8187_tx_cb+0x116/0x150 [rtl8187]\n __usb_hcd_giveback_urb+0x9d/0x120\n usb_giveback_urb_bh+0xbb/0x140\n process_one_work+0x19b/0x3c0\n bh_worker+0x1a7/0x210\n tasklet_action+0x10/0x30\n handle_softirqs+0xf0/0x340\n __irq_exit_rcu+0xcd/0xf0\n common_interrupt+0x85/0xa0\n </IRQ>\n\nTested on RTL8187BvE device.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: rtl818x: Eliminar URBs antes de borrar la cola de estado de la transmisión. En rtl8187_stop(), la llamada a usb_kill_anchored_urbs() se desplaza antes de borrar b_tx_status.queue. Este cambio impide que las devoluciones de llamada utilicen skb ya liberados, ya que el ancla no se eliminó antes de liberar dicho skb. ERROR: kernel NULL pointer dereference, address: 0000000000000080 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 7 UID: 0 PID: 0 Comm: swapper/7 Not tainted 6.15.0 #8 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:ieee80211_tx_status_irqsafe+0x21/0xc0 [mac80211] Call Trace: rtl8187_tx_cb+0x116/0x150 [rtl8187] __usb_hcd_giveback_urb+0x9d/0x120 usb_giveback_urb_bh+0xbb/0x140 process_one_work+0x19b/0x3c0 bh_worker+0x1a7/0x210 tasklet_action+0x10/0x30 handle_softirqs+0xf0/0x340 __irq_exit_rcu+0xcd/0xf0 common_interrupt+0x85/0xa0 Probado en el dispositivo RTL8187BvE. Encontrado por el Centro de Verificación de Linux (linuxtesting.org) con SVACE."
}
],
"lastModified": "2026-07-30T06:23:30.287",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B9F2FDF6-4EB5-4DFF-BC93-F12605A32B6E",
"versionEndExcluding": "5.4.297",
"versionStartIncluding": "2.6.29"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D0D21C35-EB8A-488A-BBF9-403E4817E5DD",
"versionEndExcluding": "5.10.241",
"versionStartIncluding": "5.5"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AD9E597F-3DDE-4D7E-976C-463D0611F13F",
"versionEndExcluding": "5.15.190",
"versionStartIncluding": "5.11"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3E5B1B93-C244-4B54-B3AB-12C2635A443B",
"versionEndExcluding": "6.1.148",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DD6EDB96-08AC-49D8-A1A9-4D2140C49BC7",
"versionEndExcluding": "6.6.102",
"versionStartIncluding": "6.2"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EA7AA5E6-4376-4A85-A021-6ACC5FF801C3",
"versionEndExcluding": "6.12.42",
"versionStartIncluding": "6.7"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5890C690-B295-40C2-9121-FF5F987E5142",
"versionEndExcluding": "6.15.10",
"versionStartIncluding": "6.13"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "58182352-D7DF-4CC9-841E-03C1D852C3FB",
"versionEndExcluding": "6.16.1",
"versionStartIncluding": "6.16"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}