CVE-2026-46262
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()
This reverts commit f51424872760 ("ASoC: fsl_xcvr: fix missing lock in fsl_xcvr_mode_put()").
The original patch attempted to acquire the card->controls_rwsem lock in fsl_xcvr_mode_put(). However, this function is called from the upper ALSA core function snd_ctl_elem_write(), which already holds the write lock on controls_rwsem for the whole put operation. So there is no need to simply hold the lock for fsl_xcvr_activate_ctl() again.
Acquiring the read lock while holding the write lock in the same thread results in a deadlock and a hung task, as reported by Alexander Stein.
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: 0.13%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 5/10/2026
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
- CWE-667
Referencias
- https://git.kernel.org/stable/c/0886dc6326c3cc596799c4340d342898301cf52a
- https://git.kernel.org/stable/c/29b2fbe3498da3681a01b34e4a2259f8a1b89448
- https://git.kernel.org/stable/c/30ffcad5edb56947dccc26f6816ab7a55b21a711
- https://git.kernel.org/stable/c/9a2a5da002775376498e8814df4a87cd629a3a0c
- https://git.kernel.org/stable/c/9f16d96e1222391a6b996a1b676bec14fb91e3b2
- https://git.kernel.org/stable/c/ae5a70e3e87c28edbaf9939cfef1bcbd9615420f
- https://git.kernel.org/stable/c/b0f74f5d24fe3c73ef1369a811891198b54c1e8e
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-46262",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"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": "612ffe1f4f0499b3011f16d06e354a76dae2e2d1",
"lessThan": "ae5a70e3e87c28edbaf9939cfef1bcbd9615420f",
"versionType": "git"
},
{
"status": "affected",
"version": "38354c82abe7bcbcd1182a06af89d3cc16d3e2c7",
"lessThan": "30ffcad5edb56947dccc26f6816ab7a55b21a711",
"versionType": "git"
},
{
"status": "affected",
"version": "61e007657bf7740d54ca2aadce0fb5997839818e",
"lessThan": "29b2fbe3498da3681a01b34e4a2259f8a1b89448",
"versionType": "git"
},
{
"status": "affected",
"version": "daaf4fe333e0d48b2037cd2270bf1ff8f70d5068",
"lessThan": "b0f74f5d24fe3c73ef1369a811891198b54c1e8e",
"versionType": "git"
},
{
"status": "affected",
"version": "cab928242853a832ffa7efda270ecfb9efeebb6e",
"lessThan": "9a2a5da002775376498e8814df4a87cd629a3a0c",
"versionType": "git"
},
{
"status": "affected",
"version": "f514248727606b9087bc38a284ff686e0093abf1",
"lessThan": "0886dc6326c3cc596799c4340d342898301cf52a",
"versionType": "git"
},
{
"status": "affected",
"version": "f514248727606b9087bc38a284ff686e0093abf1",
"lessThan": "9f16d96e1222391a6b996a1b676bec14fb91e3b2",
"versionType": "git"
},
{
"status": "affected",
"version": "5.15.201",
"lessThan": "5.15.202",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.164",
"lessThan": "6.1.165",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.6.127",
"lessThan": "6.6.128",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.12.74",
"lessThan": "6.12.75",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.18.13",
"lessThan": "6.18.14",
"versionType": "semver"
}
],
"programFiles": [
"sound/soc/fsl/fsl_xcvr.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.19"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.19",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.202",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.165",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.128",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.75",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.14",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.4",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"sound/soc/fsl/fsl_xcvr.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-06-03T18:16:27.513",
"references": [
{
"url": "https://git.kernel.org/stable/c/0886dc6326c3cc596799c4340d342898301cf52a",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/29b2fbe3498da3681a01b34e4a2259f8a1b89448",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/30ffcad5edb56947dccc26f6816ab7a55b21a711",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9a2a5da002775376498e8814df4a87cd629a3a0c",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/9f16d96e1222391a6b996a1b676bec14fb91e3b2",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ae5a70e3e87c28edbaf9939cfef1bcbd9615420f",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b0f74f5d24fe3c73ef1369a811891198b54c1e8e",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-667"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()\n\nThis reverts commit f51424872760 (\"ASoC: fsl_xcvr: fix missing lock in fsl_xcvr_mode_put()\").\n\nThe original patch attempted to acquire the card->controls_rwsem lock in\nfsl_xcvr_mode_put(). However, this function is called from the upper ALSA\ncore function snd_ctl_elem_write(), which already holds the write lock on\ncontrols_rwsem for the whole put operation. So there is no need to simply\nhold the lock for fsl_xcvr_activate_ctl() again.\n\nAcquiring the read lock while holding the write lock in the same thread\nresults in a deadlock and a hung task, as reported by Alexander Stein."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nASoC: fsl_xcvr: Revertir corrección de bloqueo faltante en fsl_xcvr_mode_put()\n\nEsto revierte el commit f51424872760 ('ASoC: fsl_xcvr: corregir bloqueo faltante en fsl_xcvr_mode_put()').\n\nEl parche original intentó adquirir el bloqueo card->controls_rwsem en fsl_xcvr_mode_put(). Sin embargo, esta función es llamada desde la función central superior de ALSA snd_ctl_elem_write(), que ya mantiene el bloqueo de escritura en controls_rwsem para toda la operación 'put'. Así que no hay necesidad de simplemente mantener el bloqueo para fsl_xcvr_activate_ctl() de nuevo.\n\nAdquirir el bloqueo de lectura mientras se mantiene el bloqueo de escritura en el mismo hilo resulta en un interbloqueo y una tarea colgada, según lo informado por Alexander Stein."
}
],
"lastModified": "2026-07-22T20:10:00.127",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "411B9362-5B74-4569-8450-50CAD50DE99C",
"versionEndExcluding": "6.19.4",
"versionStartIncluding": "6.19.1"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:5.15.201:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3873509D-CFDC-4039-9A16-64648274E54D"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.1.164:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8841C0DA-359F-4C10-8F51-9494CC682F61"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.6.127:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6F686B00-599C-4C3E-B874-A3725ADF8B50"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.12.74:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E601D5F-7735-4B9F-B177-8317F642EC01"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.18.13:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7FBB74D9-EA97-4AD2-B9D8-DC505C2E45DE"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35C8A871-4971-433E-A046-FC9F7B7D190A"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}