CVE-2025-40149 (GCVE-0-2025-40149)
Vulnerability from cvelistv5
Published
2025-11-12 10:23
Modified
2025-11-12 10:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.
References
Impacted products
Vendor Product Version
Linux Linux Version: e8f69799810c32dd40c6724d829eccc70baad07f
Version: e8f69799810c32dd40c6724d829eccc70baad07f
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().\n\nget_netdev_for_sock() is called during setsockopt(),\nso not under RCU.\n\nUsing sk_dst_get(sk)-\u003edev could trigger UAF.\n\nLet\u0027s use __sk_dst_get() and dst_dev_rcu().\n\nNote that the only -\u003endo_sk_get_lower_dev() user is\nbond_sk_get_lower_dev(), which uses RCU."
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      "providerMetadata": {
        "dateUpdated": "2025-11-12T10:23:27.122Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().",
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    "cveId": "CVE-2025-40149",
    "datePublished": "2025-11-12T10:23:27.122Z",
    "dateReserved": "2025-04-16T07:20:57.175Z",
    "dateUpdated": "2025-11-12T10:23:27.122Z",
    "state": "PUBLISHED"
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