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CVE-2026-46262 (GCVE-0-2026-46262)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:49 – Updated: 2026-06-03 15:49
VLAI
Title
ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 612ffe1f4f0499b3011f16d06e354a76dae2e2d1 , < ae5a70e3e87c28edbaf9939cfef1bcbd9615420f (git)
Affected: 38354c82abe7bcbcd1182a06af89d3cc16d3e2c7 , < 30ffcad5edb56947dccc26f6816ab7a55b21a711 (git)
Affected: 61e007657bf7740d54ca2aadce0fb5997839818e , < 29b2fbe3498da3681a01b34e4a2259f8a1b89448 (git)
Affected: daaf4fe333e0d48b2037cd2270bf1ff8f70d5068 , < b0f74f5d24fe3c73ef1369a811891198b54c1e8e (git)
Affected: cab928242853a832ffa7efda270ecfb9efeebb6e , < 9a2a5da002775376498e8814df4a87cd629a3a0c (git)
Affected: f514248727606b9087bc38a284ff686e0093abf1 , < 0886dc6326c3cc596799c4340d342898301cf52a (git)
Affected: f514248727606b9087bc38a284ff686e0093abf1 , < 9f16d96e1222391a6b996a1b676bec14fb91e3b2 (git)
Affected: 5.15.201 , < 5.15.202 (semver)
Affected: 6.1.164 , < 6.1.165 (semver)
Affected: 6.6.127 , < 6.6.128 (semver)
Affected: 6.12.74 , < 6.12.75 (semver)
Affected: 6.18.13 , < 6.18.14 (semver)
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Linux Linux Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.14 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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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 correcci\u00f3n de bloqueo faltante en fsl_xcvr_mode_put()\\n\\nEsto revierte el commit f51424872760 (\u0027ASoC: fsl_xcvr: corregir bloqueo faltante en fsl_xcvr_mode_put()\u0027).\\n\\nEl parche original intent\u00f3 adquirir el bloqueo card-\u003econtrols_rwsem en fsl_xcvr_mode_put(). Sin embargo, esta funci\u00f3n es llamada desde la funci\u00f3n central superior de ALSA snd_ctl_elem_write(), que ya mantiene el bloqueo de escritura en controls_rwsem para toda la operaci\u00f3n \u0027put\u0027. 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    "redhat_vex": {
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      "cve": "CVE-2026-46262",
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      "product_status:known_affected": "184",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ASoC: fsl_xcvr: Revert fix missing lock in fsl_xcvr_mode_put()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46262.json",
      "version": "3"
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46262",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46262.json",
      "version": "4"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.


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.