github - ghsa-9fjm-8jhh-94vw

ghsa-9fjm-8jhh-94vw

Vulnerability from github

Published

2024-04-28 15:30

Modified

2024-04-28 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()

syzbot is reporting underflow of nft_counters_enabled counter at nf_tables_addchain() [1], for commit 43eb8949cfdffa76 ("netfilter: nf_tables: do not leave chain stats enabled on error") missed that nf_tables_chain_destroy() after nft_basechain_init() in the error path of nf_tables_addchain() decrements the counter because nft_basechain_init() makes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.

Increment the counter immediately after returning from nft_basechain_init().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48643"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-28T13:15:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()\n\nsyzbot is reporting underflow of nft_counters_enabled counter at\nnf_tables_addchain() [1], for commit 43eb8949cfdffa76 (\"netfilter:\nnf_tables: do not leave chain stats enabled on error\") missed that\nnf_tables_chain_destroy() after nft_basechain_init() in the error path of\nnf_tables_addchain() decrements the counter because nft_basechain_init()\nmakes nft_is_base_chain() return true by setting NFT_CHAIN_BASE flag.\n\nIncrement the counter immediately after returning from\nnft_basechain_init().",
  "id": "GHSA-9fjm-8jhh-94vw",
  "modified": "2024-04-28T15:30:29Z",
  "published": "2024-04-28T15:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48643"
    },
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      "url": "https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378"
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  "schema_version": "1.4.0",
  "severity": []
}

cve-2022-48643

Vulnerability from cvelistv5

Published

2024-04-28 13:00

Modified

2024-11-04 12:13

Severity ?

Summary

netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain()

References

▼	URL	Tags
	https://git.kernel.org/stable/c/710e3f526bd23a0d33435dedc52c3144de284378
	https://git.kernel.org/stable/c/91aa52652f4b37089aff3cb53e83049d826fef6d
	https://git.kernel.org/stable/c/8bcad2a931313aeba076b76922d5813ef97d0a91
	https://git.kernel.org/stable/c/921ebde3c0d22c8cba74ce8eb3cc4626abff1ccd

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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