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"state": "PUBLISHED",
"assignerShortName": "Google",
"dateReserved": "2023-04-04T10:32:43.055Z",
"datePublished": "2023-04-12T11:16:59.101Z",
"dateUpdated": "2026-07-29T13:57:59.339Z"
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"title": "Use-after-free in tcindex (traffic control index filter) in the Linux Kernel",
"datePublic": "2023-02-16T08:27:00.000Z",
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"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
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"capecId": "CAPEC-233",
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"value": "A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.\n\n\nWe recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ .",
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