CVE-2026-74292 (GCVE-0-2026-74292)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:45
VLAI
Title
ASoC: tegra: tegra210_ahub: Validate written enum value
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: tegra: tegra210_ahub: Validate written enum value tegra_ahub_put_value_enum() reads e->values[item[0]] before checking whether item[0] is within the enum item range. The existing check therefore happens too late to prevent an out-of-range read of the values array. Move the check before the array access.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < 4e45e4c2015519a39c40eb575c03b77807fb5080 (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < 964f8f9015fb117402d8d2186593397cd93388e9 (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < 2ec7d16fe21c68b0879873a2abf9aac854c96134 (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < 4bcb23635d5059ee71f3fb89719ea14aada6fd59 (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < f67d63628fe158b3a6e6b33a2b8c83ff118699d1 (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < e098c9c6477dfa3cb363282100108484ceba5cc5 (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < 226d93b65f4f99b35fb7a03bdb24acb577364ebc (git)
Affected: 16e1bcc2caf446fa3e1daa040b59fd6f6272a766 , < 1d8aabb413b5638670dfd1162169edc0ba276a2e (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tegra: tegra210_ahub: Validate written enum value\n\ntegra_ahub_put_value_enum() reads e-\u003evalues[item[0]] before\nchecking whether item[0] is within the enum item range. The existing\ncheck therefore happens too late to prevent an out-of-range read of the\nvalues array.\n\nMove the check before the array access."
        }
      ],
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            "baseSeverity": "HIGH",
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            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached only via a local ALSA control write (ioctl on /dev/snd/controlC*) to a tegra210_ahub DAPM mux Route enum; there is no network, Bluetooth, or physical-bus path to this callback on Tegra AHUB platforms.\nAC:L - An attacker with access to the ALSA control device can set enumerated.item[0] above e-\u003eitems and reliably trigger the out-of-bounds read on every attempt; no race, special timing, or victim state is required beyond the driver being loaded.\nPR:L - Exploitation requires only local ability to open and write ALSA mixer controls, which on typical Linux/Tegra deployments (Jetson, automotive IVI, embedded kiosks) is granted to standard users in the audio group rather than requiring init-namespace root.\nUI:N - No end-user action such as plugging in hardware or mounting media is needed; a local attacker directly issues the crafted control write to trigger tegra_ahub_put_value_enum().\nS:U - Impact is confined to kernel memory disclosure or denial-of-service within the same OS security boundary; this is not a VM escape, IOMMU bypass, or cross-authority sandbox breakout.\nC:H - tegra_ahub_put_value_enum() indexes e-\u003evalues[item[0]] before validating item[0] \u003c e-\u003eitems, giving an attacker-controlled out-of-bounds kernel read that can disclose adjacent memory and, with large indices, probe arbitrary offsets.\nI:N - When item[0] is out of range the function returns -EINVAL before using the fetched value to compute reg_idx/bit_pos or update AHUB crossbar registers, so the flaw does not directly modify kernel memory or hardware state.\nA:H - Supplying a sufficiently large out-of-bounds item[0] can read unmapped kernel memory and trigger a kernel oops or panic; even bounded over-reads enable repeatable local denial-of-service against audio-critical Tegra systems."
            }
          ]
        }
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      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/964f8f9015fb117402d8d2186593397cd93388e9"
        },
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    "datePublished": "2026-08-15T05:57:58.250Z",
    "dateReserved": "2026-08-15T05:44:03.881Z",
    "dateUpdated": "2026-08-17T05:45:30.088Z",
    "state": "PUBLISHED"
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: tegra: tegra210_ahub: Validate written enum value\n\ntegra_ahub_put_value_enum() reads e-\u003evalues[item[0]] before\nchecking whether item[0] is within the enum item range. The existing\ncheck therefore happens too late to prevent an out-of-range read of the\nvalues array.\n\nMove the check before the array access."
          }
        ],
        "id": "CVE-2026-74292",
        "lastModified": "2026-08-17T06:19:23.160",
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                "attackVector": "LOCAL",
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                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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          },
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          },
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          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-20T15:37:45+00:00",
      "cve": "CVE-2026-74292",
      "id": "CVE-2026-74292",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ASoC: tegra: tegra210_ahub: Validate written enum value",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74292.json",
      "version": "3"
    }
  }
}



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  • 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.
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  • 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.