CVE-2025-21791 (GCVE-0-2025-21791)
Vulnerability from cvelistv5
Published
2025-02-27 02:18
Modified
2025-05-04 07:21
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: vrf: use RCU protection in l3mdev_l3_out() l3mdev_l3_out() can be called without RCU being held: raw_sendmsg() ip_push_pending_frames() ip_send_skb() ip_local_out() __ip_local_out() l3mdev_ip_out() Add rcu_read_lock() / rcu_read_unlock() pair to avoid a potential UAF.
References
Impacted products
Vendor Product Version
Linux Linux Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
Version: a8e3e1a9f02094145580ea7920c6a1d9aabd5539
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\"c7574740be8ce68a57d0aece24987b9be2114c3c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a8e3e1a9f02094145580ea7920c6a1d9aabd5539\", \"lessThan\": \"c40cb5c03e37552d6eff963187109e2c3f78ef6f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a8e3e1a9f02094145580ea7920c6a1d9aabd5539\", \"lessThan\": \"022cac1c693add610ae76ede03adf4d9d5a2cf21\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a8e3e1a9f02094145580ea7920c6a1d9aabd5539\", \"lessThan\": \"7b81425b517accefd46bee854d94954f5c57e019\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"a8e3e1a9f02094145580ea7920c6a1d9aabd5539\", \"lessThan\": \"6d0ce46a93135d96b7fa075a94a88fe0da8e8773\", \"versionType\": \"git\"}], \"programFiles\": [\"include/net/l3mdev.h\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.291\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.235\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.179\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.129\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.79\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.16\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.13.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.13.*\"}, {\"status\": \"unaffected\", \"version\": \"6.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"include/net/l3mdev.h\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/6ccaa5797f5362a2aad6baa6ddaf4715ac2dd51e\"}, {\"url\": \"https://git.kernel.org/stable/c/20a3489b396764cc9376e32a9172bee26a89dc3b\"}, {\"url\": \"https://git.kernel.org/stable/c/5bb4228c32261d06e4fbece37ec3828bcc005b6b\"}, {\"url\": \"https://git.kernel.org/stable/c/c7574740be8ce68a57d0aece24987b9be2114c3c\"}, {\"url\": \"https://git.kernel.org/stable/c/c40cb5c03e37552d6eff963187109e2c3f78ef6f\"}, {\"url\": \"https://git.kernel.org/stable/c/022cac1c693add610ae76ede03adf4d9d5a2cf21\"}, {\"url\": \"https://git.kernel.org/stable/c/7b81425b517accefd46bee854d94954f5c57e019\"}, {\"url\": \"https://git.kernel.org/stable/c/6d0ce46a93135d96b7fa075a94a88fe0da8e8773\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nvrf: use RCU protection in l3mdev_l3_out()\\n\\nl3mdev_l3_out() can be called without RCU being held:\\n\\nraw_sendmsg()\\n ip_push_pending_frames()\\n  ip_send_skb()\\n   ip_local_out()\\n    __ip_local_out()\\n     l3mdev_ip_out()\\n\\nAdd rcu_read_lock() / rcu_read_unlock() pair to avoid\\na potential UAF.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.291\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.235\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.179\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.129\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.79\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.16\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.13.4\", \"versionStartIncluding\": \"4.9\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.14\", \"versionStartIncluding\": \"4.9\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:21:18.929Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-21791\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:21:18.929Z\", \"dateReserved\": \"2024-12-29T08:45:45.766Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-27T02:18:29.014Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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