CVE-2023-53304 (GCVE-0-2023-53304)
Vulnerability from cvelistv5
Published
2025-09-16 16:11
Modified
2025-09-16 16:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel. Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed. Lastly, check the genmask of the end interval if this is active in the current generation.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/50cbb9d195c197af671869c8cadce3bd483735a0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cd66733932399475fe933cb3ec03e687ed401462
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71
Impacted products
Vendor Product Version
Linux Linux Version: 7ab87a326f20c52ff4d9972052d085be951c704b
Version: 181859bdfb9734aca449512fccaee4cacce64aed
Version: 4aacf3d78424293e318c616016865380b37b9cc5
Version: 2bf1435fa19d2c58054391b3bba40d5510a5758c
Version: 318cb24a4c3fce8140afaf84e4d45fcb76fb280b
Version: c9e6978e2725a7d4b6cd23b2facd3f11422c0643
Version: c9e6978e2725a7d4b6cd23b2facd3f11422c0643
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   Linux Linux Version: 6.2
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{
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          "programFiles": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_set_rbtree: fix overlap expiration walk\n\nThe lazy gc on insert that should remove timed-out entries fails to release\nthe other half of the interval, if any.\n\nCan be reproduced with tests/shell/testcases/sets/0044interval_overlap_0\nin nftables.git and kmemleak enabled kernel.\n\nSecond bug is the use of rbe_prev vs. prev pointer.\nIf rbe_prev() returns NULL after at least one iteration, rbe_prev points\nto element that is not an end interval, hence it should not be removed.\n\nLastly, check the genmask of the end interval if this is active in the\ncurrent generation."
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      "providerMetadata": {
        "dateUpdated": "2025-09-16T16:11:44.147Z",
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        },
        {
          "url": "https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71"
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    "datePublished": "2025-09-16T16:11:44.147Z",
    "dateReserved": "2025-09-16T08:09:37.994Z",
    "dateUpdated": "2025-09-16T16:11:44.147Z",
    "state": "PUBLISHED"
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  }
}


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