CVE-2025-68338 (GCVE-0-2025-68338)

Vulnerability from cvelistv5 – Published: 2025-12-23 13:58 – Updated: 2025-12-23 13:58
VLAI?
Title
net: dsa: microchip: Don't free uninitialized ksz_irq
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Don't free uninitialized ksz_irq If something goes wrong at setup, ksz_irq_free() can be called on uninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It leads to freeing uninitialized IRQ numbers and/or domains. Use dsa_switch_for_each_user_port_continue_reverse() in the error path to iterate only over the fully initialized ports.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 9428654c827fa8d38b898135d26d39ee2d544246 (git)
Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 32abbcf4379a0f851d7eb9d4389e7bf5c64bf6c0 (git)
Affected: cc13ab18b201ab630f03511060ba289b70052959 , < 25b62cc5b22c45face094ae3e8717258e46d1d19 (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.12.61 , ≤ 6.12.* (semver)
Unaffected: 6.17.11 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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          "product": "Linux",
          "programFiles": [
            "drivers/net/dsa/microchip/ksz_common.c"
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              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: microchip: Don\u0027t free uninitialized ksz_irq\n\nIf something goes wrong at setup, ksz_irq_free() can be called on\nuninitialized ksz_irq (for example when ksz_ptp_irq_setup() fails). It\nleads to freeing uninitialized IRQ numbers and/or domains.\n\nUse dsa_switch_for_each_user_port_continue_reverse() in the error path\nto iterate only over the fully initialized ports."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-12-23T13:58:24.121Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "cveId": "CVE-2025-68338",
    "datePublished": "2025-12-23T13:58:24.121Z",
    "dateReserved": "2025-12-16T14:48:05.297Z",
    "dateUpdated": "2025-12-23T13:58:24.121Z",
    "state": "PUBLISHED"
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  }
}


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Detection rules are retrieved from Rulezet.